• 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:

    公开号:SU708993A3
    申请号:SU762422952
    申请日:1976-11-25
    公开日:1980-01-05
    发明作者:Зеегерс Гюнтер
    申请人:Вабко Вестингхаус Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to protective devices for multi-circuit brake systems.
    The technical solution closest to the invention is a protective valve device for a multi-circuit brake system of a vehicle, comprising a pressure line, transfer lines connected to it via bypass valves, auxiliary lines connected to the transfer lines parallel to the bypass valves, and check valves for connecting the transfer lines to pressure, and in each auxiliary line throttle and check valve [1].
    However, this device does not provide sufficient reliability of the brake systems and has too complicated designs.
    The purpose of the invention is to increase reliability and simplify the design.
    The goal is achieved by the fact that the device is equipped with an annular line ^ for connecting the dispensing lines to the pressure line, and the bypass valves of the transfer lines closest to the pressure line are installed in the latter, and the bypass valves of the transfer lines remote from the pressure line are installed in the dispensing lines themselves, while remote transfer lines are separated from the nearest by non-return valves, and auxiliary lines are connected by their inputs to sections of the annular line between the pressure and near mi distribution lines.
    The drawing shows a schematic diagram of the proposed device.
    The annular line 2 connected to the pressure line 1 through the bypass valve 3 leads to the first transfer line 4, through the second bypass valve 5 to the second transfer line 6. The third transfer line 7 branches with the bypass valve 8 from the ring line 2.
    The fourth transfer line 9 is connected with the annular line 2 through the fourth bypass valve 10. A valve 11 is installed between the highways 4 and 7, and a valve 12 is installed between the highways 6 and 9.
    The bypass valves 3, 5, 8 and 10 are closed by means of auxiliary lines 3-16, in which the throttles 17-20 and the non-return valves 21-24 open to the transfer lines are connected in series.
    Auxiliary lines 13 and 14 branch off from the roundabout.
    The compressed air coming from the compressor through the pressure line opens the overflow valves 3 and g 5 through the annular line 2 upon reaching the set opening pressure, and the opening process is supported by the pressure appearing behind these valves. This pressure occurs due to the fact that, before opening the bypass valves, a part of the compressed air flows through the auxiliary lines 13 and 14. Through the open bypass valves 3 and 5, the compressed air flows further to the transfer lines 4 and 6.
    The compressed air flowing simultaneously into the dispensing lines 7 and 9 flows after opening the bypass valves 8 and 10, which remain open due to the pressure arising behind the valves.
    If, for example, due to leaks, one working brake circuit connected to the line 7 fails, then the compressed air supplied from the compressor enters the faulty circuit first. At the same time, the pressure in a working second working brake circuit connected to line 6 increases to the set opening pressure of the faulty line 4. If the pressure in the working brake circuit decreases due to air intake, it is again filled to the set opening pressure of the broken line 4. In lines 7 and 9 the pressure first retains its value thanks to valves 23 and 24, If, due to air intake, the pressure in one of the lines 7 or 9 drops below the set opening pressure If the circuit is faulty, it is again filled to a pressure corresponding to the set opening pressure of the faulty line 4.
    The provision of the adjusted pressure in the distribution lines 4, 7 and 9 in case of failure of the line 6 occurs in the same way.
    If, for example, the transfer line 7 fails, the pressure in the lines 4, 6, 9 drops to the set opening pressure of the faulty circuit and is maintained at this value. When air is taken from lines 4, 6 or 9, which results in a pressure drop, the lines are again filled with air to the set opening pressure of the faulty line. The preservation of the pressure of the lines 4, 6 and 7 in case of failure of the line 9 occurs in a similar way.
    Non-return valves 21 and 22 in case of failure of line 4 and, accordingly, line 6 protect, at a pressure below the opening pressure of the bypass valves 3 and 5, a serviceable line from a faulty one.
    Due to the presence of check valves 11 and 12, it is ensured that in the event of a malfunction of one of the lines 4 or 6, compressed air flows from a parallel serviceable circuit through a faulty line.
    权利要求:
    Claims (1)
    [1]
    This invention relates to safety devices for multi-circuit braking systems. The closest technical solution to the invention is a protective valve device for a multi-circuit brake system of a vehicle theme, containing a pressure line connected to it via transfer valves, transfer pipes, auxiliary lines connected to distribution pipes in parallel bypass valves, and non-return valves for connecting transfer valves lines with pressure, and in each auxiliary line installed throttle and check valve 1 .. However, this device on does not provide adequate braking systems and structures are too complex. The purpose of the invention is to increase reliability and simplify the design. The goal is achieved by the fact that the device is equipped with an annular line; o for connecting the dispensing lines to the pressure line, the bypass valves of the dispensing lines , at the same time the remote distribution lines are separated from the neighboring ones by non-return valves, and the auxiliary lines are connected by their inputs to the sections of the ring line between the pressure and the near them distributing highways. The drawing shows a schematic diagram of the proposed device. The annular line 2 connected to the pressure line 1 through the relief valve 3 leads to the first distribution line 4, through the second n & relief valve 5 to the second distribution line 6. From the ring 2 a third distributor line 7 branches off the bypass valve 8. St. A fourth dispensing line 9 with an annular line 2 is carried out through the fourth bypass valve 10. Valve II is installed between pipes 4 and 7, and valve 12 is installed between magnetics 6 and 9. Bypass valves 3, 5, 8 and 10 overlap use an auxiliary lines 13-16, which are successively included in inductors 17-20 and open to the dispensing highway m-return valves 21-24. Auxiliary highways 13 and 14 are responding from the roundabout. The compressed air coming from the compressor through the pressure line opens through the ring line 2 bypass valves 3 when the set opening pressure is reached, and the opening process is supported by the pressure that appears behind these valves. This pressure arises because before the opening of the relief valves the inflow of compressed air flows through the auxiliary lines 13 and 14. The compressed air flows further to the distributing lines m 4 and 6 through the open relief valves 3 and 5. the compressed air flows after the opening of the relief valves 8 and 10, which remain open in connection with pressure 1m behind the valves. If, for example, due to leaks, the operating brake circuit connected to line 7 fails, the compressed air supplied from the compressor enters the faulty circuit first. At the same time, the pressure in the second working brake circuit connected to the line 6 increases to the set opening pressure of the faulty line 4. If the pressure in the normal working circuit decreases as the result of air supply, it refills to the normal opening pressure of the faulty highway 4. line x 7 and 9, the pressure first retains its value due to valve 23 and 24, if, as a result of air being blown, the pressure in one of the lines 7 or 9 drops below the set pressure open and faulty circuit occurs again filled to a pressure corresponding to the pressure tuned otkrshani faulty line 4. Provision is configured in the pressure distributing highway x 4, 7 and 9, with tup vkode from line 6 occurs in the same manner. When the system fails, for example, the dispensing line 7, the pressure in the lines x 4, 6, 9 drops to the set opening pressure. a faulty loop and is maintained at this value. When air is drawn from lines 4, 6 or 9, which results in a pressure drop, the lines are again filled with air to the set opening pressure of the faulty line. Saving pressure lines 4, 6 and 7 when leaving the line 9 takes place in a similar way. The check valves 21 and 22, when they exit line 4 and, accordingly, line 6, at a pressure lower than the opening pressure of the bypass valves 3 and 5, prevent the defective line from operating pressure. Due to the presence of check valves 11 and 12, it is ensured that if one of the lines 4 or 6 fails, the compressed air flows out of the parallel serviceable circuit through the faulty line. Claims: Protective valve device for a multi-circuit brake system of a vehicle containing a pressure line, dispensing lines connected to it via transfer valves, auxiliary lines connected to distribution lines in parallel bypass valves, and check valves for connecting distribution lines to the pressure lines The auxiliary line has a throttle and non-return valve installed, characterized in that, in order to increase reliability and simplify It is equipped with a ring line for connecting the transfer lines to the pressure line, the bypass channels of the transfer lines closest to the pressure line are installed in the latter, and the bypass valves of the transfer lines remote from the pressure line are installed in the distribution lines themselves, while are separated from the nearest by non-return valves, and the auxiliary highways are connected by their inlets to the sections of the annular main between the pressure head and the nearest distributing m main roads. Sources of information taken into account during the examination 1. Published for Germany No. 2206975, cl. 63 C 53/03, 1972 (prototype).
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    同族专利:
    公开号 | 公开日
    JPS5267463A|1977-06-03|
    FR2332894A1|1977-06-24|
    AT361792B|1981-03-25|
    DE2553818A1|1977-06-02|
    GB1563144A|1980-03-19|
    PL108163B1|1980-03-31|
    IT1203001B|1989-02-15|
    SE7612939L|1977-05-30|
    ATA823076A|1980-08-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2143733B2|1971-09-01|1975-10-09|7000 Stuttgart|Multi-circuit protection valve|
    DE2206975C3|1972-02-14|1978-12-07|Knorr-Bremse Gmbh, 8000 Muenchen|Protective device for multi-circuit compressed air line systems, especially for multi-circuit brake systems !! of motor vehicles|DE2862046D1|1977-08-12|1982-11-11|Bendix Ltd|Fluid pressure circuit protection valves|
    DE2940060A1|1979-10-03|1981-04-16|Robert Bosch Gmbh, 7000 Stuttgart|MULTI-CIRCUIT PROTECTION VALVE|
    DD153478A3|1980-04-11|1982-01-13|Klaus Hofmann|TWO-WHEEL PROTECTION VALVE WITH THROTTLE DEVICE FOR VEHICLE BRAKING SYSTEMS|
    DE3434884C2|1984-09-22|2000-03-16|Wabco Gmbh|Protection system for a motor vehicle compressed air system|
    DE3806916C2|1988-03-03|1991-05-16|Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De|
    GB9319012D0|1993-09-14|1993-10-27|Wabco Automotive Uk|Valve for vehicle braking system|
    DE4445146A1|1994-12-17|1996-06-20|Wabco Gmbh|Protection system for a pressure medium system|
    JP4743834B2|2004-12-13|2011-08-10|ナブテスコオートモーティブ株式会社|Protection valve|
    EP2674338B2|2011-02-10|2021-10-27|Nabtesco Automotive Corporation|Protection valve|
    CN106404379A|2016-11-10|2017-02-15|安徽皖拓自动化有限公司|Safety valve performance online detection device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19752553818|DE2553818A1|1975-11-29|1975-11-29|MULTI-CIRCUIT PROTECTION VALVE FOR MULTI-CIRCUIT BRAKE SYSTEMS IN MOTOR VEHICLES|
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