• 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:
    1493687 Antiskid braking systems KELSEYHAYES CO 25 July 1975 [25 Oct 1974] 31307/75 Heading F2F An antiskid braking system includes an operator control in the form of a treadle valve 12 for selectively applying actuating pressure from a source 14 to brake applying means, a regulator 62 for providing a controlled supply of pressure, means responsive to an incipient skid condition for relieving braking pressure to prevent skidding and means responsive to a predetermined wheel rotational condition for applying pressure from the regulator to the brake applying means to re-apply the brakes at a regulated pressure. Operation of the treadle valve 12 supplies pressure to a latch valve 26 normally held open by a spring 29 and thence to a piston 16 of a relay valve 13 so that high pressure air is supplied from a source 14 to brake 15. If a skid signal is received at a control device 43 a solenoid valve 41 is opened to allow air in the relay valve chamber 34 to be dumped to atmosphere. During normal brake application a memory chamber 71 is charged via a restricted orifice 74 and the pressure therein will be related to the control pressure existing during brake application. When the chamber 34 is exhausted to atmosphere the reduced pressure is transmitted to the part of valve 26 below a diaphragm 27 but full pressure is applied above the diaphragm so the valve closes to prevent further treadle valve control pressure being communicated to chamber 34. The pressure in the chamber 71 will gradually bleed off through restricted orifices 74, 76 and when the control device 43 determines that the wheel or wheels has spun up sufficiently for the brakes to be reapplied valve 41 is released and control pressure is delivered to chamber 34 via regulator 62 line 53 and open valve 51. The pressure in the regulator chamber 61 is dependent on the load of the spring 68 and the pressure of chamber 71, and since the pressure in chamber 71 decreases during antiskid operation, the longer the time before reapplication, the lower will be the reapplication pressure, though this will then increase as the pressure builds up again. To regain manual control of the brakes treadle valve 12 is released to allow valve 26 to re-open; the treadle valve 12 may then be operated once more.
    公开号:SU1186080A3
    申请号:SU752184059
    申请日:1975-10-24
    公开日:1985-10-15
    发明作者:Томас Трайб Леонард
    申请人:Келси-Хейес Компани (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the automobile structure, in particular to the design of anti-lock pneumatic brake systems that prevent the nose from braking. The purpose of the invention is to increase the reliability of the system. FIG. 1 schematically shows an anti-lock air brake system during normal braking | Fig 2 is the same with pressure relief; in fig. 3 - the same, with the repeated pressure increase; in fig. 4 shows an acceleration valve, section j in FIG. 5 - the same side view, the anti-lock air brake system includes in itself a brake valve 1 connected to two parallel branches of the control line to the accelerating valve 2 connecting the pressure source 3 to one or several wheel brake cylinders 4, accelerating valve . 2 contains a piston 5 in the bore of the cylinder 6, is pressed by a spring 7 The diameter of the protruding part 8 of the piston 5 is smaller than the seat 9, the bypass valve 10 has a part 11 in which the gasket is interconnected. with a saddle 9. The valve 10 is preloaded by a spring-NOY 12, a pipeline 13 is connected to one of the branches of the control main, a connecting edge 1 with a shut-off valve 14, consisting of a diaphragm 15, the valve element 16 is located in the central part .element 17 from from. A version 18J of which is connected to the pipeline 13p, which is connected to the chamber 19, the pipeline 20 moves away from the chamber 19 and goes to the control cavity 21 of the accelerating valve .2. . When valve 10 is open, pressure from source 3 through pipe 22 of chamber 23 and 24 of the accelerator valve to 2 and pipe 25 is transmitted to cylinder 4. To release pressure, there is an electromagnetic valve 26 with a coil 27 connected to the control device 28, which reacts to drift In the chamber 29 of the valve 26 mounted on the magnetic valve plate 30, Valve elements 31 and 32 are mounted on the plate 30 to block the openings 33 and 34 to which the pipes 35 and 36 are connected. In the bore 37, a compression spring 38 is installed at the opening 34. The chamber 29 by a conduit 39 intersecting the conduit 40 is in communication with the cavity 21, and the conduit 35c is connected to the atmosphere. The pipe 36 is connected to the chamber 41 of the adjusting valve 42, which is a pressure limiter, the chamber 41 is limited to the valve body 42 and the diaphragm 43, which has a piston 44, which has an upwardly protruding part 45 with the throttle bore 46, the piston 44 is preloaded, spring 47 installed in chamber 48 connected by pipe 49 to an air reservoir 50, pressure 50 is supplied to tank 50 through pipelines 39, 40 and through pipe 51 to throttle 52, pipe 53 to throttle 54 and to the non-return valve 55 tank 50 connected to pipe 25. O The brother valve 55 provides air passage from the tank 50 to the pipeline 25 .. The valve element 56 of the valve 42 has a head, the diameter of which is less than the diameter of the hole 57 in which it is installed. The melody with a rug 58 and a locking ring 59 incorporates a spring 60, Pipe 61 connects valve 1 to valve chamber 62 and valve 14 from camera 63 through pipe 64, which has a throttle 65.. . In the closed position, the valve element 56 closes the channel 66. As shown in FIGS. 4 and 5, the individual components of the system can be assembled into a single unit consisting of three main parts - 67, 68, 69, interconnected by bolts 70. During the normal braking process (Fig. 1), the brake valve 1 is open, pressure is supplied through conduit 13 through opening 18 to valve 14 and further along the conduit. 20 into the cavity 21 and presses on the piston 5, which, acting on the overflow valve 10, provides a source of pressure 3 to the brake cylinder 4. At this time, the valve 26 is held in the closed position and there is no communication of the pipeline 39 with the atmosphere through the pipeline 35. The tank 50 is charged with compressed air. supplied through conduit 51 through choke 52, compressed air entering the valve 42 through conduit 36, falling into chamber 41, pushes the diaphragm 43 down. At the same time, the tank 50 is charged with compressed air in a slightly larger volume through the opening 46 in the pores not 44. If the device 28 receives a signal about the beginning of a skid, the valve 26 releases pressure from the cavity 21. As a result, the pressure in the cylinder decreases. When the pressure in the cylinder 4 is released (Fig. 2), the pressure in the tank 50 also begins to gradually decrease (through the pipes 51 and 53). The level of pressure reduction in reservoir 50 is determined by throttles 52 and 54. Throttle size 54 is significantly larger than throttle size 52, therefore the pressure reduction level is determined by the main throttle 54. In this cycle, part 32 of the valve at 26 closes hole 34. When the threat the occurrence of the user interface and the system are re-braked | (FIG. 3).,. The valve coil 27 is turned off, the plate 30 is lowered, covering the opening 31 with member 31, and separates the cavity 21 with the atmosphere. At this moment, the valve 14 is closed, since the pressure in the chamber 63 is greater than the pressure acting on the diaphragm 15 from below. During repeated braking, the control pressure is supplied to the cavity 21 of the valve 42, and its value is determined by the force of the spring 47 and the residual pressure in the tank 50, Chamber 41, the pressure of which is determined by the pressure in the tank 50 and spring 47 when it is released. is connected to the cavity 21 through the open valve 26. Then the pressure from the brake valve through the pipe 61 is transferred to the chamber 62 and through the open valve element 56 to the pipe 36, the valve element 32 moves back and the pressure is transmitted, bypassing the plate 30, t uboprovodam 39 and 40 into the cavity 21, with the cylinder 4 the pressure increases rapidly to a predetermined value, and then decreases at a predetermined rate. IG g fpus.i
    IS
    权利要求:
    Claims (1)
    [1]
    ANTI-BLOCK PNEUMATIC BRAKE VEHICLE SYSTEM, comprising a pressure source connected to the wheel brake cylinders through an accelerator valve, the control cavity of which is connected to the control line with a brake valve, and an electromagnetic valve is integrated into the control line to communicate the control cavity with the atmosphere from the control device signals on the occurrence of vehicle skidding, pressure limiter and connected to the control line air reservoir, characterized in that, in order to increase the reliability of the system, the pressure limiter is made with a valve having pneumatic control from the air reservoir, which is connected to the control line via the first throttle and to the forest brake cylinders by means of the second throttle and the return valve, while the second throttle is made with a smaller cross section, and the control line with an additional parallel branch, into which a shut-off valve with pneumatic control from the main branch Raleigh management.
    ma
    1 1186080 2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1186080A3|1985-10-15|Vehicle antiskid pneumatic braking system
    US4436348A|1984-03-13|Anti-skid hydraulic braking systems for vehicles
    GB1460146A|1976-12-31|Control valve assemblies for air braking systems
    US4175795A|1979-11-27|Fluid-pressure operated anti-skid braking system for vehicles
    US4155603A|1979-05-22|Anti-skid vehicle braking systems
    US3844623A|1974-10-29|Anti-skid control means for air pressure braking systems
    US3774976A|1973-11-27|Anti-skid control means for liquid pressure braking systems
    US4210370A|1980-07-01|Anti-skid vehicle braking systems
    US3820856A|1974-06-28|Air brake pressure modulator
    GB2164111A|1986-03-12|Fluid-pressure operated anti-skid braking system for a vehicle
    GB938216A|1963-10-02|Fluid operated braking system
    GB877745A|1961-09-20|Fluid pressure braking system
    GB932269A|1963-07-24|Improvements in or relating to hydraulic vehicle braking systems
    GB1495917A|1977-12-21|Air brake systems
    US3126987A|1964-03-31|herzig
    GB1256023A|1971-12-08|A vehicle antiskid braking system
    GB1358117A|1974-06-26|Vehicle anti-skid braking system
    GB1240228A|1971-07-21|Improvements in or relating to vehicular brake systems
    GB1411981A|1975-10-29|Flow control valve for a braking system
    GB1325221A|1973-08-01|Anti-skid control means for liquid pressure braking systems
    GB1022942A|1966-03-16|Automatic shut-off device for electro-pneumatic braking equipment
    US3761142A|1973-09-25|Electro-magnetically controlled fluid-pressure systems
    US4203630A|1980-05-20|Brake control units
    GB2098292A|1982-11-17|Modulators in anti-skid hydraulic braking systems for vehicles
    SU1162644A1|1985-06-23|Electropneumatic modulator for vehicle antiskid brake system
    同族专利:
    公开号 | 公开日
    CS219866B2|1983-03-25|
    DE2538335B2|1980-05-22|
    HU172668B|1978-11-28|
    GB1493687A|1977-11-30|
    FR2288654B1|1980-10-03|
    DE2538335C3|1984-08-30|
    AU8345775A|1977-02-03|
    ES442053A1|1977-04-01|
    PL105057B1|1979-09-29|
    DE2538335A1|1976-04-29|
    JPS599381B2|1984-03-02|
    ZA754646B|1976-07-28|
    CA1051065A|1979-03-20|
    IT1040159B|1979-12-20|
    US3950035A|1976-04-13|
    FR2288654A1|1976-05-21|
    SE417493B|1981-03-23|
    SE7510381L|1976-04-26|
    JPS5166976A|1976-06-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1197114A|1967-06-01|1970-07-01|Kelsey Hayes Co|Improvements in or relating to Vehicle Skid Control Systems|
    DE1926544C3|1969-05-23|1974-04-25|Knorr-Bremse Gmbh, 8000 Muenchen|Anti-skid regulator for vehicles with compressed air brakes|
    DE1944610C3|1969-09-03|1975-03-13|Wabco Westinghouse Gmbh, 3000 Hannover|Anti-skid device with a measuring sensor for detecting a variable indicating the sliding threshold of the wheel|
    DE1946635C3|1969-09-15|1980-06-12|Wabco Fahrzeugbremsen Gmbh, 3000 Hannover|Anti-lock vehicle braking systems|
    DE2026731A1|1970-02-07|1971-12-16|Knorr Bremse GmbH, 8000 München|Anti-skid regulator for vehicles braked with compressed air|
    US3758167A|1972-01-17|1973-09-11|Wagner Electric Corp|Brake anti-lock mechanism|
    US3823987A|1973-06-18|1974-07-16|Midland Ross Corp|Air brake antilock control|
    JPS5438717A|1977-09-02|1979-03-23|Hitachi Ltd|Fm receiver|GB1559814A|1975-08-30|1980-01-30|Girling Ltd|Anti-skid vehicle braking system|
    GB1591166A|1976-12-15|1981-06-17|Girling Ltd|Anti-skid vehicle braking systems|
    GB2002471B|1977-07-09|1982-01-27|Girling Ltd|Fluid-pressure operated anti-skid braking systems for vehicles|
    AU3769678A|1977-07-13|1980-01-03|Girling Ltd|Anti-skid vehicle braking systems|
    DE2739513C2|1977-09-02|1990-12-06|Robert Bosch Gmbh, 7000 Stuttgart|Pressure control unit of an anti-lock device for compressed air braking systems in motor vehicles|
    AU518924B2|1977-11-12|1981-10-29|Girling Limited|Valving controlling brake re-application pressure|
    DE3205228C2|1982-02-13|1999-04-01|Bosch Gmbh Robert|Multi-circuit pressure medium brake system|
    US4580849A|1982-11-23|1986-04-08|Lucas Industries Public Limited Company|Fluid-pressure operated braking systems for vehicles|
    GB8719550D0|1987-08-19|1987-09-23|Lucas Ind Plc|Anti-skid braking systems|
    JPH0241960A|1988-08-02|1990-02-13|Akebono Brake Ind Co Ltd|Anti-lock control device for air over hydraulic brake device|
    DE3921078A1|1989-06-28|1991-01-03|Bosch Gmbh Robert|COMPRESSED AIR BRAKE SYSTEM WITH AN ANTI-BLOCKING DEVICE|
    DE4038575A1|1989-12-22|1991-06-27|Bosch Gmbh Robert|PRESSURE CONTROL VALVE FOR AIR PRESSURE VEHICLE BRAKE SYSTEMS|
    US10179580B2|2014-10-24|2019-01-15|New York Air Brake, LLC|Brake cylinder maintaining with improved pressure regulation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/517,865|US3950035A|1974-10-25|1974-10-25|Relay valve operated skid control system|
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