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61. 发明公开

EP0128002A2 Pilot valves for two-stage hydraulic devices 有权转让
标题翻译：伺服阀用于两级液压装置。
公开(公告)号：EP0128002A2
公开(公告)日：1984-12-12
申请号：EP84303629.4
申请日：1984-05-30
申请人： Vickers Incorporated
发明人： Hammond, John Anthony Gordon , Morley, Andrew Colin
IPC分类号： F16K11/07 , F16K31/42 , F15B13/044 , F15B13/043
CPC分类号： F16K31/0613 , F15B13/0402 , F15B13/0435 , F15B20/002 , F15B2013/0412 , Y10T137/86606 , Y10T137/86614 , Y10T137/86622 , Y10T137/86702 , Y10T137/87217
摘要： A solenoid-operated pilot valve for a two stage hydraulic device comprises a spool (4) slidably mounted in a housing for movement in opposite directions from a normal null position in order to deliver fluid under pressure to the second stage (2) of the device to actuate the latter in one direction or an opposite direction from a normal null position, the spool (4) being formed with two passageways (27, 28) each extending internally of the spool (4) between one end face (15) of the latter and the periphery of the spool, and the pilot valve further comprising two spool control devices (13), at least one of which is a solenoid, associated with respective ends of the spool and in normal operation seating against the end faces (15) of the spool so as to close the passageways against fluid flow therethrough, but becoming unseated in the event of an interruption in the electrical input to the solenoid, whereby both ends of the second stage are at a common pressure so as quickly to relieve the pressure in the second stage of the device, thereby permitting fast return of the latter to the null position.

62. 发明公开

EP0111208A1 Power transmission 失效
标题翻译： GETRIEBE。
公开(公告)号：EP0111208A1
公开(公告)日：1984-06-20
申请号：EP83111681.9
申请日：1983-11-23
申请人： Vickers Incorporated
发明人： Lonnemo, Kurt Roland
IPC分类号： F15B11/05 , F16H39/50
CPC分类号： F16H61/46 , E02F9/2232 , E02F9/2246 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/163 , F15B2211/20553 , F15B2211/20576 , F15B2211/255 , F15B2211/3111 , F15B2211/329 , F15B2211/40515 , F15B2211/428 , F15B2211/46 , F15B2211/575 , F15B2211/6054 , F15B2211/6355 , F15B2211/67 , F15B2211/7142 , F15B2211/781 , F16H61/465
摘要： A hydraulic control system comprising a hydraulic actuator (15) having opposed openings (A,B) adapted to alternately function as inlets and outlets for moving the element (16) of the actuator (15) in opposite directions, a variable displacement pump (12) with load sensing control for supplying fluid to the actuator (15), a pilot operated meter-in directional (21) valve to which the fluid from the pump (12) is supplied for controlling the direction of movement of the actuator (15), pilot operated meter-out valves (26,27) associated with each opening of the actuator for controlling the flow out of said actuator, a pilot controller (18) and an engine anti-stall control (51) for sensing the flow from the pilot pressure supply pump (50) when the speed of the prime mover is decreased below a predetermined value due to a larger load demand upon the prime mover and operable to decrease the pressure of pilot pressure fluid supplied to the pilot controller (18) thereby causing the directional valve (21) to be moved toward a closed position in proportion to the decrease in supply pressure of pilot pressure fluid so that the flow demand from the variable displacement pump (12) is in turn reduced causing the variable displacement pump (12) to lessen its output and permitting the speed of the prime mover to be maintained at the original predetermined value.
摘要翻译：一种液压控制系统，包括具有相对的开口（A，B）的液压致动器（15），其适于交替地用作入口和出口，用于沿相反方向移动致动器（15）的元件（16）;变排量泵）具有用于向致动器（15）供应流体的负载感测控制，用于来自泵（12）的流体被供应到的控制操作的计量式定向（21）阀，用于控制致动器（15）的运动方向，与所述致动器的每个开口相关联的先导操作的排出阀（26,27），用于控制所述致动器的流出;导向控制器（18）和用于感测来自所述致动器的流的发动机防失速控制器（51）当原动机的负载要求较大时，由于原动机的转速降低到预定值以下，并且可以降低供给到先导控制器（18）的先导压力流体的压力，从而导致先导压力供给泵（50）方向va lve（21）与先导压力流体的供给压力的降低成比例地移动到关闭位置，使得来自可变排量泵（12）的流量需求又减少，使得可变排量泵（12）减小其输出并允许原动机的速度保持在原始预定值。

63. 发明公开

EP0104613A2 Power transmission 失效
标题翻译：电力传输。
公开(公告)号：EP0104613A2
公开(公告)日：1984-04-04
申请号：EP83109438.8
申请日：1983-09-22
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli , McCarty, Michael Rhu , Rode, Melvin Arthur
IPC分类号： F15B11/16 , B60R16/08 , B62D5/06
CPC分类号： E02F9/2217 , E02F9/2242 , E02F9/2292 , E02F9/2296 , F15B21/087
摘要： An electrohydraulic control system which includes first and second electrically controlled fully variable hydraulic pumps (18, 20) adapted to be driven by the vehicle engine (16). In the specific embodiment of the invention herein disclosed, the first pump (18) is coupled to the steering and braking control valves (38, 42), and the second pump (20) is coupled to the bucket and hoist control valves (48, 50). An electrically controlled poppet valve (60, 62) selectively interconnects the respective pump outputs. Operator-responsive controllers, namely a bucket/hoist joystick controller (10), a vehicle propulsion controller (12) and a steering controller (14), provide associated electrical signals as respective functions of operator demand. Electrically operated valves (48, 50) control application of hydraulic fluid to the bucket and hoist drive mechanism (52, 54), and pressure (76, 78, 80, 82) and position (56, 58) sensors are connected to such valves and actuating mechanisms. An electronic controller (90, 92, 94) receives inputs indicative of operator demands, pump outputs, and operation at the hoist and bucket, and selectively controls or modulates the vehicle valves (38, 42), the pumps (18, 20), and the hoist and bucket valves (48, 50) for operation at optimum efficiency.

64. 发明公开

EP0095686A2 Fluid pressure energy translating device 失效
标题翻译： Anlage zur Energieumwandlung eines流体。
公开(公告)号：EP0095686A2
公开(公告)日：1983-12-07
申请号：EP83105051.3
申请日：1983-05-21
申请人： Vickers Incorporated
发明人： Niemiec, Albin Joseph
IPC分类号： F01C21/10
CPC分类号： F04C15/0023 , F01C21/104
摘要： © A fluid pressure energy translating device comprising a housing, a rotating group rotatably mounted for rotation within the housing. The housing includes a valving face (16a) engaged by the rotating group. The housing has portions (22) spaced from the valving face (16a) which are undercut to define grooves (20) so that portions of said valving face can move axially with respect to the rotary group to compensate for mechanical, fluid dynamic and thermal effects imposed by the fluid displacement and pressure.
摘要翻译：一种流体压力能量平移装置，包括壳体，旋转组件可旋转地安装以在壳体内旋转。壳体包括由旋转组接合的阀面（16a）。壳体具有与阀面（16a）间隔开的部分（22），其被底切以限定凹槽（20），使得所述阀面的部分可相对于旋转组轴向移动以补偿机械，流体动力学和热效应受流体位移和压力的影响。

65. 发明公开

EP0093348A2 Electro-hydraulic servo valve system 有权
标题翻译：电动液压伺服阀系统。
公开(公告)号：EP0093348A2
公开(公告)日：1983-11-09
申请号：EP83103954.0
申请日：1983-04-22
申请人： Vickers Incorporated
发明人： Taplin, Lael Brent
IPC分类号： F15B9/03 , F15B13/043 , F15B13/16
CPC分类号： F15B9/03 , F15B13/0438 , Y10T137/86598 , Y10T137/86614
摘要： An electro-hydraulic servo valve system comprising a two-stage spool type servo valve including a first stage (20) comprising an electrical force motor (12) and a second stage (21) including a spool (28) for controlling flow to an actuator (14). The force motor (12) is operable upon receipt of a command electrical signal to cause to move the spool (28). A first feed-back (16) is operable to cause the force motor (12) to stop the movement of the spool (28). A second feedback (19) is also operable to stop the movement of the spool (28) at a predetermined position. The second feedback (19) has a greater gain than said first feedback (16) so that it normally dominates in the system. The second feedback (19) comprises a pair of identical electrical sensors (35, 36) connected in parallel, and operable by movement of the spool (28). A comparator circuit (18) compares the electrical signals from the sensors (35, 36) and is operable when the signals deviate from one another by a predetermined amount to disable the second feedback (19) so that the first feedback (16) will function permitting the electro-hydraulic servo valve system to operate without the second feedback (19).

66. 发明公开

EP0090971A1 Stabilizing system for wheeled vehicles 有权
标题翻译：稳定系统的轮式车辆。
公开(公告)号：EP0090971A1
公开(公告)日：1983-10-12
申请号：EP83102590.3
申请日：1983-03-16
申请人： Vickers Incorporated
发明人： Taplin, Lael B.
IPC分类号： B62D37/04
CPC分类号： B62D37/04
摘要： A stabilizing system for a wheeled vehicle (10) having a movable mass (M) on the vehicle (10), an actuator (15) mounted on the vehicle (10) connected to the mass (M) for moving the mass, a sensor (S) mounted on the vehicle (10) for sensing movement of the vehicle (10) about an axis to be stabilized, and a controller (AMP) responsive to the sensor (S) for controlling the actuator (15) to cause movement of the movable mass (M) in the same direction about the axis to be stabilized as the direction which the sensor (S) is sensing movement of the vehicle (10) and, in turn, the mass (M).

67. 发明公开

EP0068355A1 Rotor and method of making same 有权转让
标题翻译：转子和方法及其生产。
公开(公告)号：EP0068355A1
公开(公告)日：1983-01-05
申请号：EP82105356.8
申请日：1982-06-18
申请人： Vickers Incorporated
发明人： Stephan, Robert William
IPC分类号： B21K1/36
CPC分类号： B23P15/00 , F01C21/08 , Y10T29/49229 , Y10T29/49234 , Y10T29/49995
摘要： A method of making a rotor (25) of a fluid energy translating device wherein the rotor (25) has an annular passage (47) entirely within the rotor (25), a plurality of radially extending vane slots (35) intersecting the passage and axial openings (49) intersecting the annular passage (47). The method comprises forming an annular groove (52, 61, 72) in the periphery of a solid body (50, 60, 70), closing the open side of the groove to provide the annular passage (47), forming radial vane slots (35) in the body (50, 60, 70) intersecting the annular passage (47), and forming axial openings (49) in the body intersecting the annular passage.

68. 发明公开

EP0066151A2 Hydraulic control system comprising a pilot operated check valve 有权转让
标题翻译：带先导水润Uliches控制系统可操作的止回阀。
公开(公告)号：EP0066151A2
公开(公告)日：1982-12-08
申请号：EP82104214.0
申请日：1982-05-14
申请人： Vickers Incorporated
发明人： Nanda, Vinod Kumar
IPC分类号： F15B13/02
CPC分类号： F15B13/015
摘要： A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlet and outlets for moving the element of the actuator in opposite directions, a pump for supplying fluid to the actuator, pilot operated meter-in valve means to which the fluid from the pump is supplied for controlling the direction of movement of the actuator, meter-out valve means associated with each opening of the actuator for controlling the flow out of said actuator, and a pilot operated check valve (100) operable for controlling flow from the meter-in valve means to one end of the actuator and for preventing flow out the end of said actuator, the pilot operated check valve (100) being operable at a lower pilot pressure than the meter-out valve means and including time delay means (112, 115a, 119) such that the valve (100) functions to prevent flow out of the actuator after a predetermined time delay from the time when pilot pressure to said meter-out valve means is interrupted, ensuring relief valve protection.

69. 发明公开

EP0055794A2 Hydraulic power transmission 有权转让
标题翻译：液压传动。
公开(公告)号：EP0055794A2
公开(公告)日：1982-07-14
申请号：EP81106803.0
申请日：1981-09-01
申请人： Vickers Incorporated
发明人： Edwards, Thomas L. , Lambeck, Raymond P.
IPC分类号： F16H39/46
CPC分类号： F16H61/46 , F04B49/08 , F16H61/465
摘要： A hydraulic system comprising a full flow supercharged variable displacement pump (10) and a fixed displacement charge pump (11) adapted to be driven by the same prime mover. An orifice (16) is provided in the supply line (13) to the variable displacement pump (10), a circuit (21) is provided from a point downstream of the orifice (16) to tank pressure, and a feedback valve (17) is provided in series with the circuit (21). The feedback valve (17) comprises a pair of mutually and oppositely adjustable flow restrictors (18, 19) in series with said circuit (21). The restrictors (18, 19) are connected to the displacement varying means (14, 15) to vary them equally and oppositely in proportion to the movements of the displacement varying means (14, 15). A speed sensing control valve (23) is responsive to the pressure level between the two restrictors (18, 19) and the pressure level upstream of the orifice (16) and is connected to the outlet (26) of the variable displacement pump (10) and operable to operate the displacement varying means (14, 15) to reduce the displacement of the pump (10) when the pressure differential between the pressure at the outlet (22) of the feedback means (17) and the pressure upstream of the orifice (16) falls below a predetermined value.

70. 发明公开

EP0023416A2 Hydraulic valve 有权转让
标题翻译：液压阀。
公开(公告)号：EP0023416A2
公开(公告)日：1981-02-04
申请号：EP80302523.8
申请日：1980-07-24
申请人： Vickers Incorporated
发明人： Walters, Ronald Bernard , Hammond, John Anthony Gordon
IPC分类号： F15B13/043 , F15B13/16
CPC分类号： F15B13/16 , F15B13/043 , Y10T137/2589 , Y10T137/7759 , Y10T137/7761
摘要： A pilot actuated hydraulic control valve (1) has a flow setting member in the form of a valve piston (9) an end (61) of which co-operates with radial outlet ports (11) of the valve (1) to form a variable metering orifice. A flow sensor (10) provides a feedback differential pressure proportional to the flow through the valve and that feedback differential pressure is used to control a pilot stage (14) which actuates the flow setting member (9).
Various alternative embodiments are disclosed. In one form of the valve the flow setting member is a stepped valve piston (9) exposed at its smaller end (61) to the pressure at the inlet to the metering orifice, the proportion of the pressure at the inlet which is applied to the large diameter end of the stepped valve piston (9) being controlled by the pilot valve. In another form of the invention the flow control member is a collared valve piston (814) having equal area radial control surfaces.
Feedback from the inlet to the pilot stage may instead be accomplished by converting the feedback pressure differential across the flow sensor into an equivalent electric feed- back signal by means of a pressure transducer (291).

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