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1. 发明授权

US4275804A Controlling and operating device for friction clutches for motor vehicles 失效
标题翻译：机动车摩擦离合器控制及操作装置
公开(公告)号：US4275804A
公开(公告)日：1981-06-30
申请号：US974004
申请日：1978-12-28
申请人： Istvan Szarka , Janos Urbantsok
发明人： Istvan Szarka , Janos Urbantsok
IPC分类号： F16D48/06 , B60K41/22
CPC分类号： F16D48/068 , F16D2048/0209 , F16D2500/1026 , F16D2500/1028 , F16D2500/1045 , F16D2500/31413 , F16D2500/31466 , F16D2500/7041
摘要： Controlling and operating device for motor-vehicle friction clutches between the engine and a manual change-speed gear, comprising a manually operated electric switch actuated with the gear-shift lever of the vehicle; a limit switch allowing the device to be rendered inoperative; a release mechanism operated by the clutch pedal; a hydro-pneumatic release unit including two coupled working cylinders of which respective pressure spaces are connected via duct elements to a cylinder of the clutch and via an electro-pneumatic valve to a source of a pressure medium; in its rest position the valve prevents communication between the source and the space of one of the cylinders and provides a different communication from the space of that cylinder to a retarding blow-off unit that forms part of the inventive device and communicates with the free atmosphere, while when the valve is in its operative position it opens the first-named communication and prevents the other; and an electrical circuit that serially connects the electric switch and the limit switch between an electric power source and an operating electromagnet of the valve. Three exemplary embodiments of the blow-off unit are disclosed.
摘要翻译：发动机和手动变速齿轮之间的机动车辆摩擦离合器的控制和操作装置，包括由车辆的变速杆致动的手动操作的电动开关; 限制开关，允许设备不工作; 由离合器踏板操作的释放机构; 液压气动释放单元，包括两个联接的工作缸，其相应的压力空间经由管道元件连接到离合器的气缸，并且经由电动气动阀连接到压力介质的源; 在其静止位置，阀防止源极和气缸中的一个的空间之间的连通，并提供与该气缸的空间的不同的通信与形成本发明装置的一部分并与自由气氛相通的阻尼吹出单元当阀处于其操作位置时，它打开第一个命名的通信并防止另一个; 以及在电源和阀的操作电磁体之间串联连接电开关和限位开关的电路。公开了吹扫单元的三个示例性实施例。

2. 发明授权

US4388806A Hydro-pneumatic operating device actuated with a pneumatic pressure-medium or servo-operation, in particular for motor-vehicle clutches 失效
标题翻译：液压气动操作装置用气动压力介质或伺服操作，特别是用于机动车辆离合器
公开(公告)号：US4388806A
公开(公告)日：1983-06-21
申请号：US162676
申请日：1980-06-24
申请人： Istvan Szarka , Janos Urbantsok
发明人： Istvan Szarka , Janos Urbantsok
IPC分类号： F16D25/08 , F16D48/02 , F16D48/04 , F16D48/06 , B60T13/00
CPC分类号： F16D48/02 , F16D25/14 , F16D48/04 , F16D48/066 , F16D2048/0254 , F16D2500/1026 , F16D2500/1028 , F16D2500/10412 , F16D2500/1045 , F16D2500/31413 , F16D2500/31466 , F16D2500/7041
摘要： A hydro-pneumatic operating device for motor vehicle clutches permits shifting into second or higher gears without operation of the clutch pedal, by manipulation of an electric switch that actuates an electro-pneumatic valve. A cylinder block 31 is provided that houses a hydraulic working cylinder having a hydraulic piston of a hydro-pneumatic piston, and a pneumatic servo-valve unit whose path control is actuated by an external operating element which cooperates with a pneumatic servo-piston (14) of the hydro-pneumatic piston (20). On an end face of the pneumatic servo-piston (14) opposite a pneumatic servo-chamber (11) there is a supporting surface 19 whose countersurface 118 is formed on the pneumatic servo-piston (20a) of the hydro-pneumatic piston 20. The other side of pneumatic servo-piston 20a confines a blow-off chamber 22. A cylinder section 13 of a pneumatic working chamber 15 enclosed by the hydraulic pneumatic piston 20 and the pneumatic servo-piston 14 has a connection 66 for pressure medium. The hydro-pneumatic piston 20 has a duct 46 leading to blow-off chamber 22, which chamber 22 has a blow-off unit 47 discharging to the free atmosphere. An axial bore 51 leading to duct 46 has a shaft 50 with a longitudinal through channel 49 communicating with a blow-off chamber 119 of the path controlling servo-valve unit.
摘要翻译：用于机动车辆离合器的液压气动操作装置允许通过操纵致动电动气动阀的电开关来移动而不需要离合器踏板操作的第二或更高档位。提供一种气缸体31，其容纳具有液压气动活塞的液压活塞的液压工作缸和气动伺服阀单元，该气动伺服阀单元的路径控制由外部操作元件致动，该外部操作元件与气动伺服活塞（14 ）的液压气动活塞（20）。在与气动伺服室（11）相对的气动伺服活塞（14）的端面上有一个支撑表面19，其表面118形成在液压气动活塞20的气动伺服活塞（20a）上。气动伺服活塞20a的另一侧限定吹出室22.由液压气动活塞20和气动伺服活塞14封闭的气动工作室15的气缸部分13具有用于压力介质的连接件66。液压气动活塞20具有通向排气室22的管道46，该室22具有排放到自由气氛的排放单元47。通向管道46的轴向孔51具有轴50，轴50具有与路径控制伺服阀单元的吹出室119连通的纵向通道49。

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