公开(公告)号：US3255590A

公开(公告)日：1966-06-14

申请号：US36038564

申请日：1964-04-16

申请人： GEN MOTORS CORP

发明人： TIPPING RODERICK G ,  WEEK NILS P ,  TUCHOLSKI LEON A

IPC分类号： F16H41/04

CPC分类号： F16H41/04

公开(公告)号：US3367211A

公开(公告)日：1968-02-06

申请号：US49030865

申请日：1965-09-27

申请人： GEN MOTORS CORP

发明人： BORMAN AUGUST H ,  KOIVNNEN ERKKI A ,  TIPPING RODERICK G ,  WEEK NILS P

IPC分类号： F16H47/08

CPC分类号： F16H47/085

公开(公告)号：US3905274A

公开(公告)日：1975-09-16

申请号：US43747574

申请日：1974-01-28

申请人： GEN MOTORS CORP

发明人： WEEK NILS P ,  SHELLMAN CARL E ,  KOIVUNEN ERKKI A

IPC分类号： F01B3/10 ,  F16H61/42 ,  F16H61/423 ,  F16H61/433 ,  F01B13/04

CPC分类号： F01B3/104 ,  F16H61/42 ,  F16H61/423 ,  F16H61/433

摘要： A hydrostatic transmission having axial piston variable displacement pump and motor units having a timing valve cooperating with each main port to control the piston stroke pressure change to equalize the pressure in each cylinder and the pressure in each main port at the moment of interconnection. In the pump, as the cylinder port rotates from the high pressure port past top dead center to the low pressure port, one timing valve between top dead center and the leading edge of the low pressure port acts as a predecompression valve and as the cylinder port moves from the low pressure port past bottom dead center to the high pressure port the other timing valve between bottom dead center and the leading edge of the high pressure port acts as a precompression valve. Reversing the pump tilt box from a forward position to a reverse position with the same direction of rotation reverses the high and low pressure ports and the decompression and compression functions of the timing valves. In the motor with the cylinder rotating in the opposite direction relative to the valve plate and the tilt box in a forward position, the top dead center timing valve is a compression valve at the trailing edge of the low pressure port and the bottom dead center timing valve is a decompression valve at the trailing edge of the high pressure port. The timing valves in one construction are rotatable balanced valves and in another construction reciprocating valves balanced by a corresponding control force. The compression and decompression valves respectively control the amount of precompression and predecompression by piston stroke to equalize the cylinder pressure and the main port pressure as the connection is made in a pump and a motor for silent efficient operation. The compression valves are automatically controlled to increase precompression as a function of increasing system pressure and decreasing displacement and speed. The decompression valves are automatically controlled to increase predecompression as a function of increasing system pressure and speed and of decreasing displacement.

公开(公告)号：US3641879A

公开(公告)日：1972-02-15

申请号：US3641879D

申请日：1970-04-16

申请人： GEN MOTORS CORP

发明人： WEEK NILS P ,  STEVENSON PAUL D

IPC分类号： F16H59/58 ,  F16H61/00 ,  F15B11/16

CPC分类号： F16H61/0025 ,  F16H59/58

摘要： In a vehicle having an automatic transmission and power steering, there is provided a central hydraulic system wherein the power steering and transmission control systems are connected in series to receive the fluid from a single pump when pump flow is low and are connected in parallel to receive fluid from the pump when pump flow is high.

摘要翻译： 在具有自动变速器和动力转向的车辆中，提供了一种中央液压系统，其中动力转向和变速器控制系统串联连接以在泵流量低并且并联连接时接收来自单个泵的流体以接收 当泵流量高时，来自泵的流体。