• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a flow controller for a hot water appliance, comprising: - a housing comprising at least three channels; - a branching chamber arranged in the housing, into which the at least three channels open and into which a valve is arranged and with which at least two of the three channels can be closed and released; and - wherein the valve has a setting range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow communication with each other via the branching chamber, and wherein the first channel and a third channel of the at least three channels are substantially separated from each other. The invention furthermore relates to a hot water appliance provided with such a flow controller.
    公开号:NL2015218A
    申请号:NL2015218
    申请日:2015-07-24
    公开日:2016-10-11
    发明作者:Jan Cool Peter
    申请人:Intergas Heating Assets Bv；
    IPC主号:
    专利说明:

    Flow controller and a hot water heater provided with it
    The invention relates to a flow controller for a hot water appliance, as well as to a hot water appliance provided with such a flow controller, more in particular a high-power hot water appliance.
    Such high-power water heaters are used, for example, for supplying hot channel water to a tap in a kitchen or providing hot water to showers. The use of such (high-power) water heaters has some challenges depending on the application area.
    A first challenge arises when a user has taken hot water from a tap for some time. As long as this water is taken off almost continuously and continues to flow, the temperature is easily controllable. However, when the tap is temporarily shut off after a decrease in hot water, the stagnant hot water may reach undesirably high temperatures due to an equalization of the temperature in the water appliance and the water stagnant in the heat exchanger. If hot water is taken off again shortly thereafter, this water may have become so hot that there is a risk of fire injury if it comes into contact with the skin of a user. To prevent this risk, conventional water heaters are also equipped with a bypass channel, also known as a bypass channel, with which cold water can be added to the hot water that has stood still for some time.
    A second challenge arises when there is a large fluctuation in the need for hot water, for example when multiple showers are combined, such as in gyms and swimming pools. Depending on the shower use of a single person or an entire team at the same time, the desired amount of hot water can fluctuate considerably. In order to be able to meet the periodic high demand, hot water appliances for such facilities are cascaded or connected in parallel with each other. By means of valves, one or more water heaters are connected or disconnected as required.
    There is a constant need to improve the reliability of water heaters, and to make them simpler and more compact.
    The invention now has for its object to provide a flow regulator and a hot water appliance of the type described above, which meets at least one of the aforementioned challenges.
    Said object has been achieved according to the invention with a flow controller for a hot water appliance, comprising: - a housing comprising at least three channels; - a translation chamber arranged in the housing, into which the at least three channels open and into which a valve is arranged and with which at least two of the three channels can be closed and released; and - wherein the valve has a setting range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow communication with each other via the branching chamber, and wherein the first channel and a third channel of the at least three channels are substantially separated from each other.
    With such a flow controller, when the valve is moved away from the first extreme position, the seal between the first and third channels is gradually lifted, so that fluid can flow into the third channel via the branching chamber. This allows the flow controller to allow selective flow of fluid through the third channel, while the first and second channels can remain in flow communication with each other via the branching chamber.
    With these measures a flow controller is provided which can temporarily guide a part of the fluid via a by-pass, or bypass. In this way the first challenge mentioned in the introduction of preventing overheated water can be prevented.
    According to a preferred embodiment, the valve lies in the first extreme position against the wall of the branching chamber and closes off the third channel from the branching chamber, while a fluid can be flowed through the branching chamber from the first channel to the second channel or vice versa. By having the valve abut against the wall of the branching chamber, on the one hand the third channel is effectively closed, while the flow of fluid from the first channel, via the branching chamber, but the second channel, or vice versa, can take place virtually unhindered.
    According to a further preferred embodiment, the valve comprises two sealing sides, wherein: in the first extreme position of the setting range of the valve, a first sealing side of the valve lies against the wall of the branching chamber and closes off the third channel of the branching chamber; and - in a second extreme position of the setting range of the valve, a second sealing side of the valve lies against the wall of the branching chamber and closes off the first channel of the branching chamber, whereby the supply of fluid via the first channel to the branching chamber is substantially is blocked.
    By providing the valve with two sealing sides, each of which is designed to provide a seal in an associated extreme position, two opposite mouths of channels, one mouth of the first channel and one mouth of the third channel, can be closed with one valve from the branching chamber.
    With these measures a flow regulator is provided which in the second extreme position can temporarily block a supply of fluid via the first channel. This allows the flow controller to temporarily disconnect a hot water appliance from a parallel circuit, which provides a solution for the second challenge mentioned in the introduction. It is noted that the flow regulator according to this embodiment with a single valve offers a solution for the first and second challenge mentioned in the introduction, while at least two separate valves were required for this according to the prior art.
    Moreover, this embodiment provides a greatly simplified control: by moving the valve from one extreme position to the other extreme position at a predetermined speed, the channels are opened and closed in a predictable manner. From the second extreme position to the first extreme position, the bypass is only temporarily opened, and it is possible to determine in advance how much fluid will be passed through the third channel to the bypass. A desired flow characteristic can be achieved by shaping the channel around the valve.
    According to a still further preferred embodiment, in the second extreme position of the setting range of the valve, the first, second and third channel can be closed at least for the greater part, more preferably substantially completely.
    In some applications, some leakage current may be maintained between the first channel and the second channel, and may even be desirable. For example, in the case of a parallel connection of two water heaters, a small cold water leakage current can be easily absorbed by a first water heater that is not currently heating by having a second water heater heat the water slightly more, so that the mixture of the water heaters connected in parallel supplies the desired water temperature. By maintaining a small leakage current, large pressure differences, which are a burden on the valve, among other things, can be prevented. For some applications, it is therefore sufficient if the flow between the first and second channels can be at least greatly reduced, or "pinched".
    For other applications, it may be desirable if the first, second and third channel are substantially completely closable with the valve. Because a "pinched" position is thereby also adjustable, this embodiment with which complete closability is achievable is preferred.
    According to a still further preferred embodiment, the valve moves in the branching chamber between the first and second extreme position substantially transversely of the mouth of the second channel, and this mouthing of the second channel in the branching chamber is released by the valve. This allows the valve with its two sealing sides to close off two opposite mouths of channels, one mouth of the first channel and one mouth of the third channel, from the branching chamber, while the second channel remains in communication with the branching chamber over this adjustment range. .
    According to a still further preferred embodiment of the flow controller, over a first part of the setting range, when it is traversed from the second extreme position towards the first extreme position, the first, second and third channel are connected to each other and their mutual flow through the branching chamber over the setting range away from the second extreme position. As a result, the flow between the first channel and the second channel is adjustable, and can be reduced if necessary, or "pinched". Thus, in the case of a high water pre-pressure, it can be prevented that the flow through the device is so fast that the outflow temperature desired by the user cannot be achieved. By reducing the flow in such a case, it can be guaranteed that the desired outflow temperature of the water is achievable. At the same time, a partial flow of fluid also flows through the branching chamber to the third channel.
    According to a still further preferred embodiment of the flow controller, the first, second and third channel are in flow communication with each other over a second part of the adjustment range, and the flow through the branching chamber between the first and the second channel over the further adjustment range becomes towards the first extreme position is further increased, while the flow through the branching chamber between the first and the third channel over the further setting range towards the first extreme position is reduced. As a result, the flow between the first channel and the second channel is further controllable, while in the second part of the adjustment range the flow of fluid from the branching chamber to the third channel can be reduced, and even completely shut off.
    It is particularly advantageous if, according to a still further preferred embodiment, the transition between the first part of the adjustment range and the second part of the adjustment range is in the range of 35% - 65%, and more preferably in the range of 40% - 60% of the setting range of the valve. As the heat exchanger becomes heavier, it will also be desirable to be able to send more cold water through the bypass. For the most common (high-power) water heaters, a bypass in the above range is sufficient.
    According to a still further preferred embodiment, the volume flow of the first channel distributes substantially proportionally over the second and third channels at the transition between the first part of the adjustment range and the second part of the adjustment range.
    If the shut-off valve of the flow regulator according to a still further preferred embodiment is adjustable via a drivable screw spindle, a reliable and easily controllable system is obtained. The screw spindle is provided with a pitch, and in combination with the rotatable driving of the spindle an accurate displacement of the valve can be realized. The drive can for instance take place with an electric motor, more in particular with a stepper motor.
    Although a high-quality plastic can suffice, the valve according to a still further preferred embodiment is manufactured from a corrosion-resistant metal, more preferably from brass.
    The invention further relates to a hot water appliance, comprising: - a heat exchanger with a supply channel and a drain channel; - a flow controller as described above; - wherein the first channel is a supply channel; - wherein the second channel is a first outlet channel that is in flow communication with the inlet channel of the heat exchanger; and - wherein the third channel is a second drain channel that is in flow communication with a bypass channel; and - wherein the bypass channel is in flow communication with the outlet channel of the heat exchanger so that, depending on a position of the valve in the branch chamber of the flow controller, water from the outlet channel of the heat exchanger and the bypass channel can be mixed and mixed via a water outlet of the hot water appliance is removable.
    Although the heat from the heat exchanger via temperature changes can have an adverse effect on the sealability of the flow controller valve, and more lime formation will also take place on the hot side, it is nevertheless conceivable that for specific applications the flow controller on the hot side of the heat exchanger will be mounted. Because the flow controller is located closer to the outlet of the heat exchanger, the cold water does not have to cover as much distance, and direct control can therefore be realized. It is noted that the branching chamber functions here as a mixing chamber. According to an alternative embodiment, the invention therefore also relates to a hot-water appliance, comprising: - a heat exchanger with a supply channel and a discharge channel; - a flow controller as described above; - wherein the first channel is a drain channel; - wherein the second channel is a supply channel in flow communication with the heat exchanger's discharge channel; and - wherein the third channel is a supply channel in flow communication with a bypass channel; and - wherein the by-pass channel is in flow communication with the outlet channel of the heat exchanger via the flow controller so that, depending on a position of the shut-off valve of the flow controller, water from the outlet channel of the heat exchanger and the bypass channel can be mixed in the branch chamber and mixed via a water drain from the water heater can be discharged.
    According to yet a further preferred embodiment, the hot-water appliance further comprises at least one temperature sensor for determining the temperature of the water leaving the heat exchanger, and an electronic controller which is adapted to control the valve with the aid of a drive means, depending on the water temperature. particularly an electric motor.
    In the following description, preferred embodiments of the present invention are further explained with reference to the drawing, in which:
    Figure 1: a schematic representation of a hot water appliance with a flow controller according to the invention;
    Figure 2: a cross-sectional view of a flow controller according to the invention, wherein the valve is in a first extreme position;
    Figures 3A-3B: schematic representations of the first extreme position of Figure 2, an intermediate position, and a second extreme position, respectively;
    Figure 4: a diagram that plotted the flows through the different channels against the position of the valve.
    The hot water appliance 2 shown in figure 1 comprises a heat exchanger 4 with a supply channel 6 for water to be heated and a drain channel 8 through which heated water is discharged. As long as hot water is taken from the hot water appliance 2 almost continuously and continues to flow, the temperature of this water is easily controllable. However, when there is an interruption of delivery, the hot water standing still in the heat exchanger 4 can reach undesirably high temperatures. If hot water is taken off again shortly thereafter, this water may have become so hot that there is a risk of fire injury if it comes into contact with the skin of a user.
    The hot-water appliance 2 according to the invention is provided with a by-pass channel 10, with which cold water can be conducted directly to the discharge channel 8 of the hot-water appliance 2. Here, this cold water can be mixed with hot water from the hot water appliance 2. After an intermittent delivery of hot water, cold water can thus be added to the hot water in the drain channel 8 for a short time, thereby preventing it from being supplied to a user at an undesirably high temperature. Such a bypass channel 10 is known per se from the prior art, but the invention provides a particularly advantageous flow controller 1, which in the embodiment shown is arranged on the cold water side in the cold water supply 12 of the hot water appliance 2. The bypass channel 10 is coupled to the outlet channel 8 of the heat exchanger, and the mixed water can be discharged via the hot water outlet 14 from the hot water appliance 2 to a water consumer, such as a shower or tap.
    The temperature can be determined by arranging a temperature sensor 38 near the hot water side of the heat exchanger 4, for example at the location of the outlet 14. An electronic controller 40 then controls a valve 26 in the flow controller 1 as a function of the sensed temperature, so that feedback can be used to control. The advantage of a feedback arrangement is that (almost) no model-based knowledge of the entire system is required. As a result, the exact characteristic of the valve is not critical.
    An alternative and not shown embodiment comprises a temperature sensor which is arranged in the cold water supply 12. With this temperature sensor, changes in the temperature of the water supplied via the cold water supply 12 can be observed, and on the basis thereof the electronic controller 40 can compensate in advance via a feed forward control.
    It is particularly advantageous if the hot-water appliance 2 according to a further preferred embodiment is provided with a flow sensor 42 with which the desired flow (flow) is registered (and therefore also an on or off). The flow and the temperature difference across the hot water appliance 2 are load parameters, on the basis of which the electronic controller 40 can optimally control the combustion process in the hot water appliance 2. After all, the cold water temperature and the desired hot water temperature determine the net power to be generated. When the expected currents, such as heat loss to the environment and losses due to the efficiency of the exchanger, are known, the electronic controller can determine the optimum settings.
    In the cross-sectional view of Figure 2, the flow controller 1 is shown in a first extreme position of the valve 26. The flow controller 1 has a housing 16 in which a first channel 20, a second channel 22, and a third channel 24 are arranged, all of which open into a joint branching chamber 18. In the first extreme position shown, the valve 26 lies with a first side 28 thereof against a wall of the branching chamber 18, thereby closing off the third channel 24 from the branching chamber 18. At the same time, fluid, in particular water, can be released from the first channel 20 via the branching chamber 18 to the second channel 22, or vice versa, flows.
    In the embodiment shown, the first channel 20 is a supply channel, and the second channel 22 is a first discharge channel which is in current communication via the branching chamber 18 with the supply channel 6 of the heat exchanger 4. The third channel 24 is a second discharge channel which is in current connection with a bypass channel 10, wherein the bypass channel 10 is in flow communication with the outlet channel 8 of the heat exchanger 4 so that, depending on a position of the valve 26 in the branching chamber 18 of the flow controller 1, water from the outlet channel 8 of the heat exchanger 4 and the bypass channel 10 can be mixed and can be discharged mixed via a water outlet 14 of the hot water appliance 2.
    The valve 26 further has a second side 32, with which the valve 26 can be arranged against the wall of the branching chamber 18 in such a sealing manner that the mouth of the first channel 22 of the branching chamber 18 is closed off. To improve the seal, the first side 28 is provided with a first seal 30. If desired, a second seal (not shown) can be provided in the sealing surface 34 of the second side 32.
    The valve 26 is adjustable over a setting range V, for which in the shown embodiment a spindle which is rotatable in an rotational direction R and can be driven via an electronic controller 40 and an (not shown) electric motor is used. The structure further comprises a spring 44.
    The setting range V is limited by two extreme positions. In the first extreme position (figures 2 and 3A) of the setting range V of the valve 26, the first sealing side 28 of the valve 26 abuts the wall of the branching chamber 18, and closes off the third channel 24 of the branching chamber 18 .
    In the second extreme position (Fig. 3C) of the setting range V of the valve 26, the second sealing side 32 of the valve 26 abuts the wall of the branching chamber 18, and closes off the first channel 20 of the branching chamber 18. As a result, the supply of fluid via the first channel 20 to the branching chamber 18 is blocked or at least greatly reduced. Figures 3A-3C show the flow F of fluid with arrows.
    Figure 3B shows an intermediate position located between the two extreme positions, which divides the adjustment range into a first part and a second part. In the intermediate position shown in Figure 3B, the fluid supplied via the first channel 20 distributes over the second channel 22 and the third channel 24.
    The first part of the adjustment range is traversed from the second extreme position (Fig. 3C) in the direction of the first extreme position (Fig. 3A), and runs to the intermediate position shown in Fig. 3B. The second part of the adjustment range is traversed from the intermediate position shown in Figure 3B in the direction of the first extreme position (Figure 3A). Figure 3C shows a state in which no flow takes place, and thus forms a rest position, which is used, for example, to temporarily disconnect a hot water appliance 2 from a parallel circuit with several hot water appliances.
    When the valve 26 traverses the first part of the setting range (ie from Figure 3C to Figure 3B), the first channel 20, the second channel 22 and the third channel 24 are put into flow communication with each other and their mutual flow through the branching chamber 18 enlarged over the setting range of the second extreme position (Figure 3C). As a result, the flow between the first channel 20 and the second channel 22 is controllable and can be reduced if necessary, or "pinched". At the same time, an increasing partial flow of fluid also flows through the branching chamber 18 to the third channel 24.
    When the valve 26 passes through the second part of the setting range (ie from Figure 3B to Figure 3A), the first channel 20, the second channel 22 and the third channel 24 are in flow communication with each other via the branching chamber 18, and the flow between the first channel 20 and the second channel 22 further increase over the further setting range towards the first extreme position, while the flow through the branching chamber 18 between the first channel 20 and the third channel 24 over the further setting range towards the first extreme position (Figure 3A) ) is reduced. As a result, the flow between the first channel 20 and the second channel 22 is further controllable, while in the second part of the adjustment range the flow of fluid from the branching chamber 18 to the third channel 24 can be reduced, and even completely shut off.
    Now that it is clear how the flow controller 1 works, it is noted that for the application of such a flow controller 1 in a hot water appliance 2 (Figure 1), the internal volume of the bypass 10 is an interesting parameter. The length and the diameter can be adjusted such that the internal volume of the bypass 10 between the flow regulator 1 and the discharge channel 8 of the heat exchanger 4 is such that a cold stream of water optimally merges with a (too hot) warm water stream from the heat exchanger 4, so that these water streams can mix and the temperature thereof is effectively lowered to prevent at least a risk of burning.
    Finally, figure 4 shows the flow of the different channels in a graph. The flow 4 'through the heat exchanger 4 is the flow that flows through the second channel 22, while the flow 10' through the bypass channel 10 corresponds to the flow through the third channel 24. In the graph, references ΠΙΑ, IIIB and IIIC states associated with the situations from figures 3A, 3B and 3C. Along the left standing axis the flow rate F is plotted in liters per minute. The horizontal axis indicates the valve setting in steps, and the pre-pressure P is plotted along the right-hand axis.
    In the situation of Figure 3C (see IIIC in Figure 4), there is no flow F, and when moving the valve 26 towards the state shown in Figure 3B, the flow F passes through both the second channel 22 (flow curve 4 ' ) as the flow F through the third channel 24 (flow curve 10 ').
    In the situation of Figure 3B (see IIIB in Figure 4), the flow F through the second channel 22 (flow curve 4 ') and the flow F through the third channel 24 (flow curve 10') are practically the same, that is, via the first channel 20 is distributed substantially evenly.
    As the valve moves further to the situation of Figure 3A (see UIA in Figure 4), the mouth of the third channel 24 is closed further and further until no flow F through the third channel 24 (flow curve 10 ') takes place. All the fluid supplied through the first channel 20 will flow via the branching chamber 18 to the second channel 22 (flow curve 4 ').
    Figure 4 also shows the pre-pressure (curve 11) of the fluid, for example of a water pipe system. It can clearly be seen that in the fully closed state of figure 3C (see IIIC in figure 4: flow rate F is zero), the pre-pressure shows a maximum. To reduce the load on the valve 26, it is possible to opt to allow a leakage flow, which is accompanied by a pressure reduction of the pre-pressure.
    The steps of a stepper motor are plotted in the horizontal axis of Figure 4.
    In the example shown, the stepper motor has 2600 steps, with which accurate control is possible. Such an accurate control is particularly important for the bypass function, ie the flow through the bypass channel 10. To obtain an accurate control, the geometry is designed such that, from IIIC to UIA, the first 2000 steps of the stepper motor (ie in the Figure 4 shows the steps from 2600 to 600) regulating the flow 10 'of the bypass channel 10.
    The embodiment described above, although showing a preferred embodiment of the invention, is only intended to illustrate the present invention and not to limit the description of the invention in any way. When measures in the claims are followed by reference numerals, such reference numerals only serve to contribute to the understanding of the claims, but are in no way restrictive of the scope of protection. The rights described are defined by the following claims in the scope of which many modifications are conceivable.
    权利要求:
    Claims (14)
    [1]
    A flow controller (1) for a hot water appliance (2), comprising: - a housing (16) comprising at least three channels (20, 22, 24); - a branching chamber (18) arranged in the housing, into which the at least three channels open and into which a valve (26) is arranged and with which at least two of the three channels can be locked and released; and - wherein the valve has a setting range (V) with a first extreme position in which a first channel (20) and a second channel (22) of the at least three channels are in flow communication with each other via the branching chamber, and wherein the first channel (20) and a third channel (24) of the at least three channels are substantially closed from each other.
    [2]
    2. Flow-through controller as claimed in claim 1, wherein the valve rests in the first extreme position against the wall of the branching chamber and closes off the third channel of the branching chamber, while a fluid can be flowed through the branching chamber from the first channel to the second channel or vice versa is.
    [3]
    3. Flow regulator according to one of claims 3-5, wherein the valve comprises two sealing sides, wherein: - in the first extreme position of the setting range of the valve, a first sealing side of the valve rests against the wall of the branching chamber and closes the third channel of the branching chamber; and - in a second extreme position of the setting range of the valve, a second sealing side of the valve rests against the wall of the branching chamber and closes off the first channel of the branching chamber, whereby the supply of fluid via the first channel to the branching chamber in main element is blocked.
    [4]
    4. Flow-through controller as claimed in claim 1 or 2, wherein in the second extreme position of the setting range of the valve, the first, second and third channel can be closed at least for the greater part, more preferably substantially completely.
    [5]
    5. Flow-through controller according to claim 3 or 4, wherein the valve moves between the first and second extreme position substantially transversely to the mouth of the second channel in the branching chamber, and this mouthing of the second channel in the branching chamber is released by the valve .
    [6]
    6. Flow-through controller as claimed in any of the claims 3-5, wherein over a first part of the setting range, when it is run from the second extreme position in the direction of the first extreme position, the first, second and third channel are in flow communication with each other and their mutual flow through the branching chamber over the setting range away from the second extreme position are increased.
    [7]
    7. Flow-through controller as claimed in claim 6, wherein the first, second and third channel are in flow communication with each other over a second part of the setting range and the flow through the branching chamber between the first and the second channel over the further setting range further towards the first extreme position is increased, while the flow through the branching chamber between the first and the third channel over the further setting range towards the first extreme position is reduced.
    [8]
    The flow controller according to claim 7, wherein the transition between the first part of the adjustment range and the second part of the adjustment range is in the range of 35% - 65%, and more preferably in the range 40% - 60% of the adjustment range of the valve.
    [9]
    9. Flow-through controller according to claim 7 or 8, wherein at the transition between the first part of the adjustment range and the second part of the adjustment range, the volume flow of the first channel distributes substantially proportionally over the second and third channels.
    [10]
    Flow-through controller according to one of the preceding claims, wherein the valve is adjustable via a drivable screw spindle.
    [11]
    The flow regulator according to any one of the preceding claims, wherein the valve is made from a corrosion-resistant metal, more preferably from brass.
    [12]
    A hot water appliance (2), comprising: - a heat exchanger (4) with a supply channel (6) and a discharge channel (8); - a flow controller (1) according to one of claims 1 to 11; - wherein the first channel (20) is a supply channel; - wherein the second channel (22) is a first discharge channel which is in current communication with the supply channel (6) of the heat exchanger (4); and - wherein the third channel (24) is a second drain channel that is in flow communication with a bypass channel (10); and - wherein the bypass channel (10) is in flow communication with the outlet channel (8) of the heat exchanger so that, depending on a position of the valve (26) in the branching chamber (18) of the flow controller (1), water from the outlet channel of the heat exchanger and the bypass channel can be mixed and discharged through a water outlet of the hot water appliance.
    [13]
    A hot water appliance (2), comprising: - a heat exchanger (4) with a supply channel (6) and a discharge channel (8); - a flow controller (1) according to one of claims 1 to 11; - wherein the first channel (20) is a drain channel; - wherein the second channel (22) is a supply channel in flow communication with the discharge channel (8) of the heat exchanger (4); and - wherein the third channel (24) is a supply channel in flow communication with a bypass channel (10); and - wherein the bypass channel 910 is in flow communication via the flow regulator with the outlet channel (8) of the heat exchanger so that, depending on a position of the shut-off valve (26) of the flow controller (1), water from the outlet channel of the heat exchanger and the bypass channel can be mixed in the branching chamber and can be discharged mixed via a water outlet from the hot water appliance.
    [14]
    A hot water appliance according to claim 12 or 13, further comprising: - at least one temperature sensor for determining the temperature of the water leaving the heat exchanger; and - an electronic controller that is adapted to drive the valve with the aid of a drive means, more particularly an electric motor, depending on the water temperature.
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    法律状态:
    2018-04-25| RC| Pledge established|Free format text: DETAILS LICENCE OR PLEDGE: RIGHT OF PLEDGE, ESTABLISHED Name of requester: INTERMEDIATE CAPITAL GROUP PLC Effective date: 20180319 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2014498|2015-03-20|US15/557,965| US10288317B2|2015-03-20|2016-03-21|Flow controller and a hot water appliance provided therewith|
    KR1020177030122A| KR20180015116A|2015-03-20|2016-03-21|A flow controller and a hot water device provided with the flow controller|
    UAA201710099A| UA123307C2|2015-03-20|2016-03-21|Flow controller and a hot water appliance provided therewith|
    EP16722416.1A| EP3271664A1|2015-03-20|2016-03-21|Flow controller and a hot water appliance provided therewith|
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    JP2017549234A| JP2018510316A|2015-03-20|2016-03-21|Flow control device and hot water apparatus using the same|
    PCT/NL2016/050194| WO2016190730A1|2015-03-20|2016-03-21|Flow controller and a hot water appliance provided therewith|
    CA2980262A| CA2980262A1|2015-03-20|2016-03-21|Flow controller and a hot water appliance provided therewith|
    JP2021162256A| JP2022003275A|2015-03-20|2021-09-30|Flow control device and hot water equipment using it|
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