• 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 invention relates to a device for controlling the flow of a fluid, housed in a thermostatic faucet comprising: housed in the body of the faucet, a device (5) for controlling the outlet temperature of the water, comprising a thermosensitive element (3) and a device (11) for controlling the flow of the faucet, a control knob (12) for the temperature control device and a control element (13) for the flow control device. This control device is characterized in that: the flow control device (11) is disposed downstream from the mixing chamber and controls the flow cross section of the so-called outlet located downstream from the mixing chamber, and the control knob and element are located on the same side of the body of the faucet that houses the control device, and on the opposite side from the outlet.
    公开号:US20010007336A1
    申请号:US09/727,523
    申请日:2001-03-16
    公开日:2001-07-12
    发明作者:Eddy Jelloul；Frederic Regnier；Laurent Bongrand
    申请人:Watts Eurotherm SA；
    IPC主号:G05D23-1346
    专利说明:
    [0001] The invention relates to a device for controlling the flow of a fluid, housed in a thermostatic faucet. [0001]
    [0002] Particularly in shower stalls, the valve that controls the flow of hot and cold water to the shower head or the faucet head must handle not only the on-off function but also the mixing of the hot water issuing from a hot water source with the cold water issuing from a cold water source in order to obtain water mixed to the temperature desired by the user. [0002]
    [0003] There are exclusively mechanical control systems that consist of adjusting the cross-sections of the hot water and cold water passages. [0003]
    [0004] These devices cannot correct the outlet temperature when the flow rate and/or the temperature of one of the two hot water/cold water conduits is accidentally modified. [0004]
    [0005] There are other known devices in which the hot water/cold water mixture is controlled by means of a temperature-sensitive control element plunged into a so-called mixing chamber. [0005]
    [0006] This control element automatically modifies the flow cross-sections of the hot water and cold water inlets into the mixing chamber by moving a piece that acts like a slide valve. [0006]
    [0007] There are means that make it possible, by means of a control knob, to set reference value. [0007]
    [0008] Thus, if the temperature of the water in the mixing chamber exceeds the threshold set by the reference value, the sensitive element shuts off the flow cross-section of the hot water passage in order to prevent burns. [0008]
    [0009] A device of this type therefore controls the mixture of hot and cold water by automatically modifying the flow cross-section of the hot water and the cold water passages into the mixing chamber located downstream. [0009]
    [0010] It is essential, however, to be able to stop the flow of the faucet when it is not in use. [0010]
    [0011] It is therefore customary to house in the faucet both a temperature-sensitive mixing device and a device for controlling the opening and closing of the faucet. [0011]
    [0012] There are known devices wherein the body of the faucet houses a flow control device at one of its ends and an automatic temperature control device at its other end, these two devices being joined by a connecting conduit. [0012]
    [0013] For purposes of control and/or adjustment, each of the devices has a control element located on one side of the body of the faucet for one of them, and on the other side for the other. [0013]
    [0014] This makes it necessary to position the body parallel to the wall from which the hot water and cold water supply conduits project. [0014]
    [0015] The flow control device can be positioned upstream or downstream from the temperature control device. [0015]
    [0016] When the two conduits are combined, the opening/closing control device is generally disposed upstream from the device for controlling the mixture of the hot and cold water, in order to insulate the thermosensitive element when the faucet is not in use. [0016]
    [0017] For example, the control device consists in a set of washers pierced with holes that in the open position, positions one washer relative to the other so that the holes of one washer line up with the holes of the other washer. [0017]
    [0018] As a general rule, the flow control device works in an all-or-nothing way, meaning that it does not have any intermediate position, and the principle of these faucets consists of completely opening or closing the water inlets without the capability to control the flow rate. [0018]
    [0019] In some cases, especially for faucets installed in sinks (EP-A-0.605.845 or EP-A-0.342.709), flow control may be provided, but this requires being able to modify the flow cross-sections of the hot water and cold water passages simultaneously, which requires complex hole shapes. [0019]
    [0020] This is the case with the device in the document EP-1.022.634, wherein the set of disks is installed in such a way that it controls both the inflow of hot and cold water and the outflow of mixed water. [0020]
    [0021] There is another known device (EP-0.566.433) wherein the thermosensitive element drives of one of the three disks in rotation, constituting a flow control means downstream from the mixing chamber. [0021]
    [0022] An installation of this type is not appropriate because the mechanical stresses that are exerted on the thermosensitive element modify the position of the slide valve that controls the temperature. [0022]
    [0023] The stresses are extremely undesirable because the amplitude of displacement of the slide valve is on the order of one millimeter, and even a slight modification interferes with the adjustment of the temperature. [0023]
    [0024] One of the objects of the invention is to obtain a device of the aforementioned type that specifically eliminates the aforementioned disadvantages. [0024]
    [0025] The subject of the invention is a device for controlling the flow of a fluid from a faucet comprising: [0025]
    [0026] housed in the body of the faucet: [0026]
    [0027] a device for controlling the outlet temperature of the water, comprising a thermosensitive element which, plunged into a so-called mixing chamber, adjusts the temperature of the mixed water by modifying the cross-sections of flow to the mixing chamber of the hot water issuing from a hot water inlet and the cold water issuing from a cold water inlet, and [0027]
    [0028] a device for controlling the flow of the faucet, [0028]
    [0029] a control knob for the temperature control device and [0029]
    [0030] a control element for the flow control device located on the same side of the body of the faucet that houses the control device, and on the opposite side from the outlet, [0030]
    [0031] this device being characterized in that the means for transmitting the rotation of the control element is coaxial to the thermosensitive element and this means is a rotationally guided jacket housing the thermosensitive element, this jacket being rotationally coupled with the control element of the flow control device by a first coupling means, and rotationally coupled with the flow control device by a second coupling means. [0031]
    [0032] The invention will be clearly understood with the help of the following description given as a non-limiting example, in reference to the attached drawing, which schematically represents: [0032]
    [0033] FIGS. 1 through 3: three partial longitudinal sections of a control device, [0033]
    [0034] FIG. 4: an exploded view of a part of the control device. [0034]
    [0035] Referring to the drawing, we see a device [0035] 1 for controlling the flow of a fluid, housed in a thermostatic faucet 2.
    [0036] This device specifically makes it possible to prevent burns in case of a sudden drop in the cold water pressure and is convenient to use because of the automatic adjustment of the outlet temperature of the water. [0036]
    [0037] Conventionally, such a faucet with a thermostatic control element [0037] 3 comprises:
    [0038] housed in the body [0038] 4 of the faucet:
    [0039] a device [0039] 5 for controlling the outlet temperature of the water, comprising a thermosensitive element 3 which, plunged into a so-called mixing chamber 6, adjusts the temperature of the mixed water by modifying the cross-sections 7, 8 of flow to the mixing chamber 6 of the hot water issuing from a hot water inlet 9 and of the cold water issuing from a cold water inlet 10, and
    [0040] a device [0040] 11 for controlling the flow of the faucet,
    [0041] a control knob [0041] 12 for the temperature control device and
    [0042] a control element [0042] 13 for the flow control device.
    [0043] The flow control device [0043] 11 is disposed downstream from the mixing chamber and controls the flow cross-section of the so-called outlet 14 located downstream from the mixing chamber.
    [0044] Flow control is obtained by means of two washers [0044] 15, 16 disposed one on top of the other, each of which has at least one hole.
    [0045] One ([0045] 15) of the washers 15, 16, called the fixed washer, is rotationally immobilized, while the other washer (16), called the moving washer, is rotationally guided and rotationally driven, at least indirectly, by the control element 13 of the flow control device.
    [0046] These washers [0046] 15, 16 are preferably ceramic.
    [0047] As may be seen in FIG. 4, each washer is pierced with two holes, which essentially allow the outflow. [0047]
    [0048] It is not equipped with a hole for introducing water into the mixing chamber. [0048]
    [0049] Advantageously, the control knob and element are located on the same side of the body of the faucet that houses the control device, on the opposite side from the outlet [0049] 14 so that the means 17, 18 for transmitting the rotation of the control knob and element are coaxial.
    [0050] They can also be coaxial to the sensitive element [0050] 3.
    [0051] According to one characteristic of the invention, the temperature control device is housed in a rotationally guided jacket [0051] 19 inside the body of the faucet, and this jacket 19, which is rotationally coupled with the control element of the flow control device by a first coupling means 20 and rotationally coupled with the moving washer 16 by a second coupling means 21, at least partially constitutes the means 17 for transmitting the rotation of the moving washer.
    [0052] The flow control device is disposed immediately at the outlet of the temperature control device, without a connecting conduit, which allows for a reduction in the overall dimensions. [0052]
    [0053] This jacket [0053] 19 has two lateral slots 22 that allow the water issuing from the hot water and cold water inlets 9, 10 to enter the mixing chamber 6 via the hot water and cold water passages, whose cross-sections depend on the thermosensitive element.
    [0054] The slots extend along nearly the entire circumference. [0054]
    [0055] Advantageously, nonreturn valves [0055] 23, 24 in the form of rings with a substantially V-shaped cross-section prevent the return of the fluid to the hot and cold water inlets.
    [0056] Facing these slots are annular chambers [0056] 25, 26 delimited by the outer surface of the jacket, the inner surface of the housing of the faucet receiving the flow control device, and gaskets 100, 101, 102.
    [0057] Advantageously, the disk-shaped ceramic washers are mounted in a sleeve [0057] 27, which sleeve, at least indirectly, has means 28 for detachably connecting with the jacket 19 housing the temperature control device.
    [0058] The rotational driving and/or rotational locking of one piece relative to another piece is achieved, for example, by means of cooperating shapes. [0058]
    [0059] In the example shown, a pin [0059] 29 passes through the wall of the sleeve 27 housing the ceramic disks 15, 16 and one (29A) of the ends (29A, 29B) of this pin penetrates into a cavity 30 of the ceramic disk, while the other (29B) projects outward from the sleeve so as to cooperate with the body of the faucet, for example a notch in the body, thus rotationally locking the fixed disk inside the body of this faucet.
    [0060] Quite clearly, the rotational locking of the fixed disk to the sleeve, and that of the sleeve to the body of the faucet, can be obtained with two separate pins, but the preceding solution is advantageous. [0060]
    [0061] For the driving of the moving disk [0061] 16, which is located as close as possible to the mixing chamber 6, the disk has, for example in its side 16A that faces the mixing chamber, a recess 16B that receives a boss 31 presented at least indirectly by the jacket 19, which drives it in rotation.
    [0062] Advantageously, the link between the moving disk and the jacket is produced by an intermediate ring [0062] 32 that is coupled with both the jacket 19 and the sleeve 27.
    [0063] The temperature control device and the disks can therefore be replaced without requiring the replacement of the entire assembly. [0063]
    [0064] Furthermore, the presence of the jacket makes it possible to produce a cartridge, i.e. a pre-assembled piece comprising the temperature control device and the flow control device disposed one behind the other, which need only be slid into the body of the faucet and is therefore easily replaceable. [0064]
    [0065] The diameter of the intermediate ring and the sleeve are quite clearly no larger than the diameter of the jacket. [0065]
    [0066] Another advantage results from a possible enlargement of the mixing chamber, which allows a much better mixture of the hot and cold water because it prevents the formation of hot or cold streams, and hence a better control of the temperature. [0066]
    [0067] The hot water and cold water inlets are embodied by channels that pass radially through the housing of the faucet. [0067]
    [0068] In reality, many faucet manufacturers produce only the body of the faucet, in which they install flow control devices and/or temperature control devices that they purchase on the market. [0068]
    [0069] They must therefore allow for the specific technical and dimensional characteristics of the existing devices. [0069]
    [0070] Thus, they use a cartridge that may be equipped with the flow control device. [0070]
    [0071] In order limit production costs, one need only provide for the bodies of the faucets to have a bore that is long enough to house both devices, even if only one device is installed in it. [0071]
    [0072] FIG. 3 shows that the temperature control device [0072] 5 is placed at the end of a bore, resting against a supporting surface 110.
    [0073] The slide valve [0073] 5A controls the inflow of hot and cold water.
    [0074] Positioned in front of this temperature control device is the ring [0074] 32 that locks the temperature control device, to which the flow control device can be adapted.
    [0075] The jacket [0075] 19 is extended on the other side of the part housing the intermediate ring by a jacket 19A housing the stem for controlling the temperature setting.
    [0076] The flow control element is attached to this jacket. [0076]
    [0077] The system is easy to produce. [0077]
    权利要求:
    Claims (16)
    [1" id="US-20010007336-A1-CLM-00001] 1. Device for controlling the flow of a fluid, housed in a thermostatic faucet comprising:
    housed in the body (4) of the faucet:
    a device (5) for controlling the outlet temperature of the water, comprising a thermosensitive element (3) which, plunged into a so-called mixing chamber (3), adjusts the temperature of the mixed water by modifying the cross-sections (7, 8) of flow to the mixing chamber (6) of the hot water issuing from a hot water inlet (9) and the cold water issuing from a cold water inlet (10) and,
    a device (11) for controlling the flow of the faucet, disposed downstream from the mixing chamber, in order to adjust the flow cross section of the so-called outlet (14) located downstream from the mixing chamber,
    a control knob (12) for the temperature control device and a control element (13) for the flow control device, located on the same side of the body of the faucet that houses the control device, and on the opposite side from the outlet (14), this device being characterized in that the means (17) for transmitting the rotation of the control element is coaxial to the thermosensitive element and this means (17) is a rotationally guided jacket (19) housing the thermosensitive element (3), this jacket (19) being rotationally coupled with the control element of the flow control device by a first coupling means (20), and rotationally coupled with the flow control device (11) by a second coupling means.
    [2" id="US-20010007336-A1-CLM-00002] 2. Control device according to
    claim 1 , characterized in that:
    flow control is obtained by means of two washers (15, 16) disposed one on top of the other, each of which has at least one hole, and
    one (15) of the washers (15, 16), called the fixed washer, is rotationally immobilized, while the other washer (16), called the moving washer, is rotationally guided and rotationally driven, at least indirectly, by the control element (13) of the flow control device.
    [3" id="US-20010007336-A1-CLM-00003] 3. Control device according to
    claim 1 , characterized in that the jacket (19) has lateral slots (22) that allow the water issuing from the hot water and cold water inlets (9, 10) to enter the mixing chamber (6) via the hot water and cold water passages, whose cross-section depends on the thermosensitive element.
    [4" id="US-20010007336-A1-CLM-00004] 4. Control device according to
    claim 1 , characterized in that the flow control device and the temperature control device form a cartridge.
    [5" id="US-20010007336-A1-CLM-00005] 5. Control device according to
    claim 2 , characterized in that the disk-shaped ceramic washers are mounted in a sleeve (27), which sleeve, at least indirectly, has means (28) for detachably connecting with the jacket (19) housing the temperature control device.
    [6" id="US-20010007336-A1-CLM-00006] 6. Control device according to
    claim 5 , characterized in that a pin (29) passes through the wall of the sleeve (27) housing the ceramic disks (15, 16), and one (29A) of the ends (29A, 29B) of this pin penetrates into a cavity (30) of the ceramic disk, while the other (29B) projects outward from the sleeve in order to cooperate with the body of the faucet.
    [7" id="US-20010007336-A1-CLM-00007] 7. Control device according to
    claim 2 , characterized in that the link between the moving disk and the jacket is produced by an intermediate ring (32) that is coupled with the jacket (19) and with a sleeve (27).
    [8" id="US-20010007336-A1-CLM-00008] 8. Control device according to
    claim 1 , characterized in that, for the driving of the moving disk (16), which is located as close as possible to the mixing chamber (6), the disk has, in its side (16A) that faces the mixing chamber, a recess (16B) that receives a boss (31) presented at least indirectly by the jacket (19), which drives it in rotation.
    [9" id="US-20010007336-A1-CLM-00009] 9. A control device for controlling the flow of a fluid through a thermostatic faucet having a body (4) with a cold fluid inlet (10) and a hot fluid inlet (9) comprising:
    a temperature control device (5) within the body (4) for controlling outlet temperature of the fluid, said device (5) comprising a mixing chamber (3) and a thermosensitive element (3) adapted to be plunged into the mixing chamber (3) to adjust the temperature of mixed fluid by modifying the cross-sections (7, 8) of flow to the mixing chamber (6) of hot fluid issuing from the hot fluid inlet (9) and the cold fluid issuing from a cold fluid inlet (10) and,
    a flow control device (11) disposed downstream from the mixing chamber and adapted to adjust the flow cross section of an outlet (14) downstream from the mixing chamber for controlling the flow of the faucet,
    a control knob (12) connected to the temperature control device and a control element (13) connected to the flow control device and located on the same side of the body of the faucet that houses the control device, and on the opposite side from the outlet (14),
    a rotationally guided jacket (17) coaxial to the thermosensitive element for transmitting rotation of the control element (13), said rotationally guided jacket (19) housing the thermosensitive element (3), and
    first and second coupling means, said jacket (19) being rotationally coupled with the control element of the flow control device by a first coupling means (20), and rotationally coupled with the flow control device (11) by a second coupling means.
    [10" id="US-20010007336-A1-CLM-00010] 10. A control device according to
    claim 9 , further comprising:
    a fixed washer (15) and a moveable washer (16) disposed within the flow control device (11), one on top of the other, each of which has at least one hole, and
    the fixed washer being rotationally immobilized, while the moving washer (16), is rotationally guided and rotationally driven, at least indirectly, by the control element (13) of the flow control device so as to control flow.
    [11" id="US-20010007336-A1-CLM-00011] 11. A control device according to
    claim 9 , characterized in that the jacket (19) has lateral slots (22) that allow the fluid issuing from the hot fluid and cold fluid inlets (9, 10) to enter the mixing chamber (6) via hot fluid and cold fluid passages, whose flow cross-section depends on the thermosensitive element (3).
    [12" id="US-20010007336-A1-CLM-00012] 12. A control device according to
    claim 9 , characterized in that the flow control device and the temperature control device form a cartridge.
    [13" id="US-20010007336-A1-CLM-00013] 13. A control device according to
    claim 10 , characterized in that the washers are ceramic disks (15, 16) mounted in a sleeve (27), said sleeve including, at least indirectly, means (28) for detachably connecting the temperature control device with the jacket (19) housing.
    [14" id="US-20010007336-A1-CLM-00014] 14. A control device according to
    claim 13 , further comprising a pin (29) extending through the sleeve (27), said sleeve (27) housing the ceramic disks (15, 16), one first end (29A) of the pin (29) penetrating into a cavity (30) of a ceramic disk, and a second other end (29B) of the pin (29) projecting outward from the sleeve so as to cooperate with the body (4) of the faucet.
    [15" id="US-20010007336-A1-CLM-00015] 15. A control device according to
    claim 10 , characterized in that an intermediate ring (32) coupled with the jacket (19) and with a sleeve (27) provides a link between the moving washer and the jacket.
    [16" id="US-20010007336-A1-CLM-00016] 16. A control device according to
    claim 9 , characterized in that the moving washer (16) has in a side (16A) that faces the mixing chamber, a recess (16B) that receives a boss (31) presented at least indirectly by the jacket (19), which rotatably drives the washer of the moving washer (16) being located adjacent to the mixing chamber (6).
    类似技术:
    公开号 | 公开日 | 专利标题
    US6402041B2|2002-06-11|Fluid flow control device housed in a thermostatic faucet
    US6517006B1|2003-02-11|Thermostatic mixing faucet having improved stability
    US5725010A|1998-03-10|Pressure balanced mixing valve
    AU656558B2|1995-02-09|Thermostatically controlled mixing valve
    US6557770B2|2003-05-06|Thermostatic cartridge for mixer taps
    US5931181A|1999-08-03|Anti-scald faucet system
    US20060243813A1|2006-11-02|Thermostatic mixer with flow diverting means
    US5356074A|1994-10-18|Thermostatic mixing device
    KR900702442A|1990-12-07|Temperature Automatic Pressure Balance Valve Assembly
    US20080283620A1|2008-11-20|Thermostatic mixer device for sanitary use
    EP1190284B1|2007-02-07|Thermostatic mixing valve
    US4346735A|1982-08-31|Water faucet and attachment therefor
    US4299354A|1981-11-10|Mixing valves
    CA2216146C|2001-07-10|Flow control ports for a thermostatic mixing faucet
    KR19980087042A|1998-12-05|2/3 handle pressure balancer system
    EP1342143A1|2003-09-10|Flow mixer
    US9885483B2|2018-02-06|Thermostat
    KR100797519B1|2008-01-24|A cartridge of water suppling valve
    US7201181B1|2007-04-10|Mixing valve
    RU2042074C1|1995-08-20|Mixing cock
    NZ258910A|1998-06-26|Mixing valve with a venturi nozzle and a slidable control needle
    KR200260321Y1|2002-01-10|Water supply cock for economizing energy
    JP2686897B2|1997-12-08|Hot and cold water mixing device using functional module
    KR0165589B1|1998-12-01|Hot water temperature control valve
    EP1387115B1|2007-12-12|Faucet having a delivery barrel arranged at the top of the faucet body
    同族专利:
    公开号 | 公开日
    FR2801957A1|2001-06-08|
    EP1107085A1|2001-06-13|
    US6402041B2|2002-06-11|
    FR2801957B1|2002-09-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070012792A1|2005-07-14|2007-01-18|Shigeru Iwai|Temperature adjustment handle autorotation prevention device of automatic water mixing valve|
    US20070194137A1|2006-02-17|2007-08-23|Watts Water Technologies, Inc.|Thermostatic mixing valve|
    US20120145801A1|2009-02-26|2012-06-14|Watts Industries France|Thermostatic mixing valve|
    US20150331431A1|2014-05-15|2015-11-19|Acorn Engineering Company|Thermostatic shower valve|
    US20170344035A1|2016-05-27|2017-11-30|Zurn Industries, Llc|Hot Water Valve With Integral Thermostatic Mixing Cartridge|
    EP3480498A1|2017-11-06|2019-05-08|Grohe AG|Cartridge for a sanitary article and a sanitary article|
    DE102020102434A1|2020-01-31|2021-08-05|Grohe Ag|Mixed water fitting with compact thermostatic valve|FR2295327B1|1974-12-20|1977-05-20|Pont A Mousson||
    TR23689A|1988-05-20|1990-06-13|Allied Corp|BIPOLAR MEMBRANES AND PROCEDURES FOR MAKING THEM|
    SE507634C2|1991-03-14|1998-06-29|Masco Corp|Thermostatically controlled mixing valve, especially of the engraving type|
    FR2690217B1|1992-04-17|1994-07-08|Vernet Procedes|IMPROVEMENTS ON THERMOSTATIC CAPSULES AND MIXER VALVES PROVIDED WITH SUCH CAPSULES.|
    DE4300183A1|1993-01-07|1994-07-14|Grohe Armaturen Friedrich|Mixer tap|
    US5931374A|1995-06-27|1999-08-03|Masco Corporation|Flow control ports for a thermostatic mixing faucet|
    US6089462A|1998-02-04|2000-07-18|Officina Meccanica Ruga Osvaldo|Thermostatic mixing valve|
    IT1290272B1|1997-02-06|1998-10-22|Mec Ruga Osvaldo Off|PERFECTED THERMOSTATIC MIXING VALVE|
    DE19901851A1|1999-01-19|2000-07-20|Hansgrohe Ag|Cartridge for sanitary fittings|
    US6279831B1|2000-01-18|2001-08-28|Hansgrohe Ag|Mixing fitting with single lever operation|FR2822216B1|2001-03-15|2003-06-20|Vernet Sa|THERMOSTATIC QUARTER CARTRIDGE WITH CONCENTRIC CONTROLS, CERAMIC DISCS, AND MIXER TAP PROVIDED WITH SUCH A CARTRIDGE|
    DE10153988B4|2001-11-06|2011-07-21|Grohe AG, 58675|Setpoint adjuster on a thermostatically controlled mixing valve|
    US7744007B2|2004-11-01|2010-06-29|Honeywell International Inc.|Thermostatic mixing valves and systems|
    CZ2005354A3|2005-06-03|2006-06-14|Regulus Spol. S R. O.|Safety device arrangement of water heating system|
    CN101235910B|2006-11-06|2011-06-29|谢庆俊|Double handles three-function constant temperature controller|
    US8733666B2|2008-11-18|2014-05-27|Honeywell International Inc.|Thermostatic mixing valve with tamper resistant adjustment feature|
    US8074894B2|2008-11-18|2011-12-13|Honeywell International Inc.|Secondary mixing valve hot port|
    CN103711938B|2013-12-10|2016-04-13|浙江盾安阀门有限公司|The thermostatic valve of preset flow allocation proportion|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR9915247A|FR2801957B1|1999-12-03|1999-12-03|FLUID FLOW CONTROL DEVICE LOCATED IN A THERMOSTATIC VALVE|
    FR99.15247||1999-12-03||
    [返回顶部]