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1. 发明专利

GB2324339A Hydraulic damper 未知
公开(公告)号：GB2324339A
公开(公告)日：1998-10-21
申请号：GB9800751
申请日：1998-01-14
申请人： VICKERS INCORPORATED
发明人： OGILVIE KENNETH MEAD
IPC分类号： F16L55/04 , F15B11/028 , F16L55/055
摘要： A hydraulic damper (10) is disclosed for reducing undesirable pressure differentials in a hydraulic system. The damper comprises a body assembly (12), including first and second inlet ports (14) for connecting the damper to a hydraulic system. A pair of lap assemblies (20) are provided for equalizing pressure differentials between the inlet ports. Each lap assembly is in fluid communication with each of said inlet ports. A metered passageway (34) is provided for fluidly connecting each of said inlet ports. A slide (28) is movably received within the lap assembly to permit reciprocal motion. The slide alternately blocks and unblocks the metered passageway in response to a predetermined pressure across one of the respective inlet ports, in order to equalize the pressure differential between the ports.

2. 发明专利

AU5513190A POWER TRANSMISSION 未知
公开(公告)号：AU5513190A
公开(公告)日：1991-03-28
申请号：AU5513190
申请日：1990-05-18
申请人： VICKERS INCORPORATED
发明人： NAME NOT GIVEN
IPC分类号： F04B49/00 , F04B1/26 , F04B49/06 , G05D16/20 , F16K31/02
摘要： A rotary hydraulic machine such as a variable displacement in-line or axial piston pump including a housing (60), a shaft (66), a cylinder block (70), pistons (74) disposed therein and a valve block (62). A microprocessor-based controller (42) is externally mounted on the pump valve block (62) and includes internal memory having various remotely-selectable control programs prestored therein. Sensors (50, 52, 54) responsive to pump operating conditions are connected to the pump control electronics, and include a first sensor (50) responsive to yoke position, a pressure sensor (52) responsive to pump output pressure and a speed sensor (54) responsive to angular velocity of shaft rotation. All of the electronic components are mounted on the valve block (62).

3. 发明专利

AU4574196A Particle detection and destruction in fluid systems 未知
公开(公告)号：AU4574196A
公开(公告)日：1996-09-05
申请号：AU4574196
申请日：1996-02-27
申请人： VICKERS INCORPORATED
发明人： OWEN ALLAN B
IPC分类号： G01V3/02 , G01N15/10 , G01N27/00 , G01N27/06 , G01R27/22 , G01N15/06
摘要： Apparatus for monitoring particles in fluid systems in which a detector has electrical contacts that are bridged by particles captured from suspension in the fluid. Upon detection of a particle, a control microprocessor stores a predetermined quantity of electrical energy on a capacitor, which is then discharged through an inductor to burn off the particle at the detector. The burn-off charge and return lines from the charge storage capacitor are un-grounded, and are connected by respective electronic switches through relay contacts to the conductors connected to the chip detector. The relay contacts are also connected to the inputs of a differential amplifier for detecting presence of a chip bridging the detector contacts and monitoring continuity of the conductors to and from the detector. The relay is powered by system voltage, and in the event of system power failure connects the chip detectors directly to warning lamps on an operator panel.

6. 发明专利

AU3225984A SLIDING-VANE ROTARY-PISTON MACHINE 未知
公开(公告)号：AU3225984A
公开(公告)日：1985-03-07
申请号：AU3225984
申请日：1984-08-22
申请人： VICKERS INCORPORATED
发明人： DEAN LAURENCE C JR , CARDINALE LOUIS J
IPC分类号： F04C2/344 , F01C21/00 , F01C21/08 , F03C2/30 , F01C1/344 , F01C19/00 , F04C15/00 , F04C27/00

7. 发明专利

AU1928283A POWER TRANSMISSION 未知
公开(公告)号：AU1928283A
公开(公告)日：1984-05-31
申请号：AU1928283
申请日：1983-09-20
申请人： VICKERS INCORPORATED
发明人： NAME NOT GIVEN
IPC分类号： E02F9/22 , F15B11/00 , F15B11/16 , F15B11/17 , F16H61/46 , F16H61/465 , F15B13/042 , F16H39/46

8. 发明专利

AU1348283A POWER TRANSMISSION 未知
公开(公告)号：AU1348283A
公开(公告)日：1983-11-10
申请号：AU1348283
申请日：1983-04-13
申请人： VICKERS INCORPORATED
发明人： NAME NOT GIVEN
IPC分类号： F15B9/03 , F15B13/043 , F15B20/00 , F15C3/02
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).

10. 发明专利

AU1093183A POWER TRANSMISSION 未知
公开(公告)号：AU1093183A
公开(公告)日：1983-08-18
申请号：AU1093183
申请日：1983-02-02
申请人： VICKERS INCORPORATED
发明人： NAME NOT GIVEN
IPC分类号： E02F9/22 , B66C13/12 , B66C23/86 , B66C23/94 , F15B11/00 , F15B11/04 , F15B13/02 , F15B1/00

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