• 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 engine housing for an agricultural machine such as a chaff cutter includes a separate cooling unit. Air passing through the radiator is blown above the cooling unit fitted with a free blower. From a part of the fan output several part air flows (14) are formed through folding connecting plates (12), these flows being of predetermined extents, and are blown into the engine housing (1) with guide plates (13) guiding them in an inclined downward direction.
    公开号:SU1017802A1
    申请号:SU797770622
    申请日:1979-06-06
    公开日:1983-05-15
    发明作者:Хейнц Леманн；Хейнц Роцник
    申请人:Феб Тракторенверк Шенебек,Бетриб Дес Феб Комбинат Фортшритт Ландмашинен (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to a device for ventilation of an engine chamber of a self-propelled agricultural i-machine, in particular a self-propelled field grinder equipped with a closed engine chamber and a separate refrigeration unit with upward flow of air leaving the radiator, and the refrigeration unit is equipped with a free-cooling device for the radiator.
    The known free-flow devices comprise a rotary blade radiator fan or a reverse-transfer radiator fan for changing the direction of rotation, or a device consisting only of valves that turn the air flow for the purpose of blowing. A free-flow device according to patent WP 128200 can be used. In order to obtain a ground material of better quality and higher productivity, self-propelled field choppers are scattered with larger grinding devices and more motor driven engines.
    In all known field grinders of this size, the management of the thermal load of the engine while simultaneously complying with the requirements of the environmental protection law regarding compliance with the level of occupational safety and fire risk prevention is not sufficiently solved. The difficulty lies in the fact that all three factors affect each other negatively. Known designs of field shredders blow all exhaust air from the radiator horizontally through the engine chamber, and this air again goes out through various openings, mostly from the side or front. For field shredders, mostly with higher power, this leads to increased noise loading and more severe pollution in the driver's cabin area, as well as to warm air intake by an air croptaHHH unit and cooling In the case of a solution to WP 128200. warm air suction although it is warned, an additional fan for ventilation of the engine chamber is constantly sucked into the engine area of the particles of the material being harvested, which leads to the extreme danger of a fire. Reducing the passage of air through the auxiliary fan leads to insufficient ventilation of the engine chamber and thus thermally overload of the engine and its units. Negative in such an air intake is also an increase in the noise level from the constant operation of the second, additional fan.
    The invention aims to create for a high-performance field grinder with a closed engine chamber a device for ventilating the engine chamber, which
    optimally ventilates this engine chamber with a minimum amount of air.
    Another object of the invention is the applicability of the device with each of these free-blowing devices.
    The object of the invention is to take into account the state of development of technology according to patent WP 128200 to create a device for ventilating the engine chamber of a high-performance field grinder, which prevents thermal overload of the engine and its units, maintains the permissible level of schum and provides labor protection, preventing the risk of fire . At the same time, the amount of air for ventilation of the engine chamber must be optimized so that warm air does not stick and the turbulence of dust under the field grinder does not form from the flowing air. The device is designed so that the above devices can be used to freely blow cooling and filtering surfaces.
    According to the invention, it is proposed to divert to the engine chamber through a specially designed device a partial stream of air from an upwardly blown out stream from an air radiator.
    The device consists of several fixedly arranged guide plates to which the same number of folding plates adjoins to change direction. Flaps divide the partial air flow into a series of smaller air streams of a specific order of magnitude and change their direction. Through the fixed guide plates, air flows injected directionally into the zones of the engine chamber with a high thermal load. Before entering the device, the exhaust air from the fan passes a guide device, with which a partial air flow with low losses is blown through reversing flaps of directional change and fixed guiding flaps in the form of several small air flows at an angle down through the closed but lower open chamber engine Due to this arrangement and interaction of the units: the fan, the guiding device, the guards for changing the direction, the guiding plates, the engine chamber is closed and the directional partial air flows of a certain order of magnitude are provided, the engine chamber is optimally ventilated with a minimum amount of air. Downwardly flowing air from a closed engine chamber downwardly ensures that the field shredders of increased productivity do not show an increase in the degree of contamination.
    The ability of the engine to be closed with the use of this device provides a low noise level that meets the requirements of the law. Flaps to change the direction of air flow allow the device to interact with all the devices for free blowing.
    When using a free blowing device consisting of a fan with movable blades or a fan with reversing gear, reversing flaps close the opening to the engine chamber for the time of free blowing and prevent air from being sucked into the engine chamber, and thus the material to be removed.
    When using a free air blasting device in the form of a louver, flaps for changing direction are also an integral part of the louver and thus perform an additional function in it.
    It is also technically possible to use a device for ventilation of the engine chamber instead of the additional fan according to patent WP 128200. In this case, the additional fan is used only for a short free-flow. Flaps for changing direction are mounted in the louvers at the air blowing channel and in this device also perform an additional function for free blowing.
    The invention is explained in more detail in an exemplary embodiment.
    FIG. Figure 1 shows a side view of a field shredder with a closed engine chamber and a separate refrigeration unit with an integrated radiator fan with movable blades or reversing gear when ventilating the engine chamber with the device during the cooling function; in fig.
    2 is a side view of the refrigeration unit of FIG. 1 during the execution of the free blowing function; in fig. 3 is a side view of the refrigeration unit with an integrated radiator fan and a louver assembly for free-flowing when the engine chamber is ventilated with the device during the cooling function; in fig. 4 shows the projection of the refrigeration unit of FIG. 3 during the execution of the free blowing function.
    On the fit. 1 shows a self-propelled field grinder, which has a closed engine chamber 1 and a separate refrigeration unit 2. From the drive engine
    In a known manner, through the actuator 4, the fan 5 is operated, for example, with movable blades 23, which sucks the cooling air into the radiator chamber 8 through the filtering surface 6 and the water radiator 7. While through the guide device 9 and the purge channel 10 s the protective grille 11, the exhaust air from the fan is partially blown up, through the hinged flaps of the change of direction 12 and the fixed, guiding flaps 13, a part of the air drawn from the ventilator is diverted into the engine chamber I closed by the casing 19 its air is marked by arrows.
    Certain shields related to the directional device 9 to change direction 12 are smaller
    0 air streams 14 through guiding flaps 13 are directed down to selected areas of engine chamber 1 exposed to high thermal stress or hazards, for example, to the turbocharger zone, conducted by the exhaust gases 15, and to the collector zone for combustion air 16, to the zone injection fuel pump 17 or exhaust gas installation 18. Thus purged through the engine chamber 1 fractional air flow
    0 14 re-emerge from the lower hole 20 at a slower speed. The restriction of the lower opening of the chamber of the engine 1 occurs mainly by the casing 19, the frame 21, the fuel tank 22 and the cooling unit 2. For completeness, we should also mention the working part
    5 24 field grinder with the cab driver 25, the feeding device 26, the grinding unit 27 and the ejection device 28.
    FIG. 2 shows a cooling unit 2 and a device for ventilating the engine chamber during the performance of the function of free blowing of the water radiator 7 and the filtering surface 6 from the attached cleaning material. For this purpose, the guards for changing direction 12 are positioned so that the opening to the chamber of the engine 1 is closed. The fan 5 with movable blades or fan 5 with reversing gear in driver 4 used in the exemplary embodiment rotates the air flow, so that through the protective grid 11,
    0, the purge channel 10 and the air guide 9 are sucked in through the radiator chamber 8, the water radiator 7 and the filter surface 6 are ejected.
    FIG. 3, a cooling unit 2 with flaps for changing the direction 12 and guiding flaps 13 in connection with a free air blasting device for ventilation of the camera of bodies tel is shown as an example of the following example. The device of the refrigeration unit corresponds mainly to FIG. 1 and 2. A fan 5 with fixed blades sucks air through the filtering surface 6, the water radiator 7 and through the open wall 29, consisting of rotating blinds, into
    5 radiator chamber 8. While through the guide device 9, the purge channel 10 and the open wall 29 installed from the pivotal blinds, as well as
    权利要求:
    Claims (1)
    [1]
    DEVICE FOR VENTILATION OF A MOTOR CAMERA OF A SELF-PROPELLED AGRICULTURAL MACHINE, in particular a self-propelled field grinder equipped with a closed chamber for the engine and a separate refrigeration unit, in which the air flow from the radiator is directed upward, and the refrigeration unit is equipped with a free radiator blower, which in the exhaust air flow above the fan 5 or the guide device 9 are installed hinged flaps 12 direction changes and fixed guides shields 13 directed into the engine chamber, and when connected, the hinged shields 12 and the guiding shields 13 form surfaces for directing the flow of exhaust air into the engine chamber 1, and when the radiator 7 and the filter surface 6 are freely blown, hinged shields 12 as part of the wall of the rotary shutters 30 form a partition between the engine chamber 1 and the refrigerator chamber 8.
    FI.1 i017802
    类似技术:
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    FI83584B|1991-04-30|GRAESKLIPPARE.
    同族专利:
    公开号 | 公开日
    FR2434268B1|1983-07-29|
    DD137460A1|1979-09-05|
    DD137460B1|1980-12-10|
    BG32502A1|1982-08-16|
    CS224456B1|1984-01-16|
    HU180756B|1983-04-29|
    FR2434268A1|1980-03-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2718366C2|2015-08-26|2020-04-02|Ман Трак Унд Бас Аг|Bypass device to reduce recirculation of heated air into cooling device|FR549144A|1922-03-20|1923-02-02|Air cooling system for internal combustion engines|
    GB1135440A|1966-04-28|1968-12-04|Tractor Res Ltd|Improvements in or relating to vehicle cooling systems|
    FR2019437A1|1968-09-14|1970-07-03|Honda Motor Co Ltd|DE3007346C2|1980-02-27|1988-04-21|Kloeckner-Humboldt-Deutz Ag, 5000 Koeln, De|
    JPH08268088A|1995-03-31|1996-10-15|Hitachi Constr Mach Co Ltd|Cooling structure of construction equipment|
    DE102007004940B4|2007-01-26|2008-12-04|Maschinenfabrik Bernard Krone Gmbh|Self-propelled agricultural machine|
    RU2718596C1|2019-07-18|2020-04-08|Акционерное общество "Управляющая компания "Брянский машиностроительный завод" |Locomotive|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD20636578A|DD137460B1|1978-06-29|1978-06-29|DEVICE FOR MOTOR VENTILATION FOR SELF-OPERATING AGRICULTURAL MACHINES|
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