• 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:
    A control valve for a hydraulic booster steering system provides gradual control of inlet flow to the system pump to complete cut off of output, or by throttling of inlet flow to effect a pilot stream through the pressure pump. This occurs in the neutral position of the control valve during straight ahead steering. Where flow through the pump intake feed means is thus impeded, the pump simply cavitates in a known manner and to be of a type which is suction regulated, having a check valve means at the pressure outlet side. The advantage of cutting off inlet flow to the pump during straight ahead steering, or at least throttling of such inlet flow by a constantly open throttle passage, is to save energy otherwise wasted in heating the fluid.
    公开号:SU1322990A3
    申请号:SU802869454
    申请日:1980-01-23
    公开日:1987-07-07
    发明作者:Ланг Армин
    申请人:Цанрадфабрик Фридрихсхафен Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to hydraulics and can be used in the construction of cars of various types.
    The purpose of the invention is to increase the KDP,
    The drawing shows a diagram of the steering booster of the vehicle.
    Power contains the steering shaft. 1 with symmetrically located axles 2, 3, pump 4 with injection and suction hydraulic lines 5, 6, tank 7 connected to hydraulic line 6, cylindrical spools 8, 9 placed in parallel bores 10, 11 of sleeve 12, and executive hydraulic cylinder 13 .
    The spool 8 is made with the sleeves 14–15 and is placed in the bore 10, made with grooves 16, 17, interacting with the sleeves 14, 15. The spool 9 is made with the bits 18, 19 and is placed in the bore 11, made with grooves 20 , 21, interacting with the cores 18, 19. The sleeve 12 is installed in the housing 22 with the formation of an annular cavity 23 connected to the hydroline 5.
    At the same time, the grooves 16, 20 are made with two-sided negative overlap for 14, 18, and the grooves 17, 21 are with positive overlap for 15, 19, with the grooves 17, 21 interconnected and with hydroline 6, and the positive overlap 15, 19 is larger in magnitude than the negative overlap of 14, 18. The tank 7 is connected to the bores 10, P between the grooves 16, 17 and 20, 21 and connected to the hydraulic line 6 via an additionally installed choke 24.
    The grooves 16, 20 are connected by hydraulic lines 25, 26 to the cavities 27, 28 of the hydraulic cylinder 13. The hydraulic line 5 is connected via valve 29 to the tank 7.
    Power steering works as follows.
    When the shaft 1 is rotated, the ciphs 2, 3 turn and the spool 8 moves, for example, up, and the spool 9 moves down (according to the drawing). Juice 8 separates the groove 20 from the tank 7, and juice 19 opens the groove 21, providing a connection between the suction line 6 of the hydroline 6 and the tank 7. At the same time, the groove 17 remains open, and the hydroline 25 and


    the cavity 27 is connected to the tank 7 through the groove 16. As a result, the working fluid from the hydroline 5 through the cavity 23, the groove 20 and the hydroline 26 enters the cavity 28, and from the cavity 27 is displaced into the tank 7, and hydrO1№1- lindr 13 removes movement determined by turning the steering shaft 1. In the event of skidding (loss of control of the vehicle) through 15, 19 interfere with the supply of working fluid in the suction line 6. When controlling the spools 8. 9, the connection time of the suction line 6 with the tank 7, t is minimized. e. eliminating the discharge of working fluid under pressure. The throttle 24 provides a reduction in energy loss in transient control of the hydraulic booster.
    权利要求:
    Claims (1)
    [1]
    1. A hydraulic power steering device for a vehicle, comprising a housing, a steering shaft with symmetrically arranged trunnions, a pump with pressure and suction hydraulic lines, a tank connected to the suction line, two cylindrical spools located in parallel borings of the liner, and an executive hydraulic cylinder, the pins are kinematically connected with the spools with the possibility of simultaneous movement of the latter in opposite directions in the bores of the sleeve installed in the B case, and the spools are connected to the pump Su, bak, and a hydraulic cylinder cavity, characterized in that, in order to improve efficiency, the zolotnki are double-seated, each boring of the liner is made through with two grooves to interact with the spool cores, and the liner is installed in the housing to form an annular cavity, associated with injection hydroline and borings, in this case one of the grooves of each boring is connected to the cavity of the hydraulic cylinder and is made with two-sided negative overlapping of the first flow of the corresponding spool, and the other groove of each section point is formed with a positive overlap of its second of the rib, wherein the groove with a positive overlap and are interconnected with the suction hydraulic line, positive overlapping vy313229904
    full of larger than 2. The hydraulic booster of claim., Is negative, and the tank is connected by the fact that the tank is connected
    each of the bores between the ditch, with suction hydroline through the docks .. a fully installed choke.
    Compiled by S.Rozhdestvensky Editor S.Pekar Tehred M.MorgentalKorrektor A.T.
    Order 2884/59 Circulation 639Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d.4 / 5
    Production and printing company, Uzhgorod, Projecto st., 4
    类似技术:
    公开号 | 公开日 | 专利标题
    US4041983A|1977-08-16|Pressure controlled swing valve with safety feature
    US4096883A|1978-06-27|Closed-center controller and neutral bypass arrangement therefor
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    SU1322990A3|1987-07-07|Hydraulic booster of vehicle steering mechanism
    US4804016A|1989-02-14|Fluid controller with improved pressure balancing
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    US4557291A|1985-12-10|Multiple control valve system
    GB1222247A|1971-02-10|Hydraulic control valve with void prevention means
    US3635244A|1972-01-18|Valve for distributing fluid to a system of fluid-actuated machines
    US3492817A|1970-02-03|Spool valves and power steering and like controls
    SU1312267A1|1987-05-23|Hydraulic drive
    JPS5934006A|1984-02-24|Fluid control device
    SU1585559A1|1990-08-15|Hydraulic control valve unit
    US20220064903A1|2022-03-03|Hydraulic control circuit for a construction machine
    同族专利:
    公开号 | 公开日
    IT1126916B|1986-05-21|
    BR8000627A|1980-10-14|
    IT8047766D0|1980-01-31|
    ES488054A1|1980-09-16|
    DE2903988C2|1986-09-11|
    FR2449580B1|1983-10-21|
    FR2449580A1|1980-09-19|
    JPS55106869A|1980-08-16|
    GB2042443A|1980-09-24|
    GB2042443B|1982-11-24|
    DE2903988A1|1980-08-14|
    JPS6256816B2|1987-11-27|
    US4344284A|1982-08-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DK105744A|1961-06-20|
    DE2256072C3|1972-11-16|1979-11-29|Integral Hydraulik & Co, 4000 Duesseldorf|Arrangement for limiting the reaction force in hydraulic power steering devices|
    DE2301607A1|1973-01-13|1974-07-18|Bosch Gmbh Robert|HYDRAULIC CONTROL DEVICE|
    US3935917B1|1974-10-18|1987-06-09|
    DE2742621A1|1977-09-22|1979-04-05|Zahnradfabrik Friedrichshafen|HYDRAULIC POWER STEERING WITH POWER SUPPLY DEVICE|US4557342A|1983-05-20|1985-12-10|Trw Inc.|Hydraulic apparatus|
    US4815551A|1984-10-05|1989-03-28|Zahnradfabrik Friedrichshafen, Ag|Servosteering, especially for motor vehicles|
    JPS61102379A|1984-10-22|1986-05-21|Atsugi Motor Parts Co Ltd|Power steering|
    DE3644886C2|1985-08-09|1988-09-22|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen, De|
    US5147009A|1990-04-27|1992-09-15|Nippon Seiko Kabushiki Kaisha|Steering force control apparatus of power steering system|
    DE4418071C1|1994-05-24|1995-08-03|Daimler Benz Ag|Drive unit with electric motor for driving cooling fan of motor vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19792903988|DE2903988C2|1979-02-02|1979-02-02|Hydraulic power steering, in particular for motor vehicles|
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