Patents for F15B 13 - Details of servomotor systems (18,792) |
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04/12/1990 | DE3833874A1 Hydraulic directional control valve |
04/12/1990 | DE3832780A1 Control motor for a servo valve |
04/11/1990 | EP0362409A1 Hydraulic driving unit |
04/11/1990 | EP0362401A1 Control valve unit |
04/11/1990 | CN1007545B 摆线等距线齿轮传动副及其装置 Cycloid equidistance line gear and equipment deputy |
04/11/1990 | CN1007544B Direction valve with flow controller |
04/10/1990 | CA1267644A1 Pneumatic energy accumulated activator, especially for valve |
04/04/1990 | EP0361643A1 Multi-stage selector valve |
04/04/1990 | EP0360873A1 Pilot operated control valve unit |
04/04/1990 | CN1007447B Hydraulic operated loop apparatus for operating reversal valve |
04/03/1990 | US4913191 Directional control valve |
04/03/1990 | US4913181 Priority valve and method for using same |
04/03/1990 | US4913032 Multiplexed hydraulic control systems |
03/29/1990 | DE3832647A1 Shuttle valve for fitting in directional control valves of the disc type of construction |
03/29/1990 | DE3832318A1 Electrohydraulic directional control valve |
03/28/1990 | EP0360718A1 Pilot-operated regulating connector for regulating the speed of pneumatic actuators |
03/28/1990 | EP0151174B1 Three-way proportional valve |
03/22/1990 | WO1990002884A1 Direct drive valve |
03/22/1990 | WO1990002883A1 Controlled connector-regulator for the speed regulation of pneumatic jacks |
03/22/1990 | WO1990002882A1 Hydraulic driving system with a priority function for hydraulic motors |
03/21/1990 | EP0359354A1 Fluid control valve with variable pressure gain |
03/21/1990 | EP0358852A1 Device for transporting a fluid |
03/21/1990 | EP0358778A1 Pilot operated control valve system |
03/15/1990 | DE3829686A1 Pressure regulating valve |
03/14/1990 | EP0357964A2 Proportional valve |
03/14/1990 | CN2054503U Hydraulic control valve |
03/14/1990 | CN2054502U 电磁气动阀 Pneumatic solenoid valve |
03/14/1990 | CN2054433U Manpower hydraulic power device of hydraulic beam transport vehicle |
03/13/1990 | US4907615 High frequency response servovalve with electrical position feedback element structure and method |
03/08/1990 | WO1990002283A1 Poppet valve device |
03/08/1990 | WO1990002267A1 Oil pressure feeder of work machine cylinder |
03/08/1990 | WO1990002266A1 Operation valve device |
03/07/1990 | CN2054106U Multiple-way change valve with single valve stem |
03/07/1990 | CN2054105U Thin-wall high-strength three-purpose valve |
03/06/1990 | US4905959 Pressure medium valve |
02/28/1990 | CN1007002B Distributor block for control system of support |
02/28/1990 | CN1007001B Rotary fluid transfer device |
02/27/1990 | US4903940 Device for positioning an adjusting member |
02/27/1990 | CA1266218A1 Fluid power control system |
02/21/1990 | EP0354972A1 Valve device |
02/21/1990 | EP0277946A4 Compensated fluid flow control valve. |
02/21/1990 | EP0276222A4 Compensated fluid flow control valve. |
02/20/1990 | EP0276221A4 Compensated fluid flow control valve. |
02/15/1990 | DE3907233A1 Valve block |
02/14/1990 | CN2052838U Electromagnetic reversal valve for vehicle turning round in situ |
02/14/1990 | CN2052837U Hydraulic valve |
02/14/1990 | CN2052836U Proportion electromagnet type single stage servo/proportion flow valve |
02/13/1990 | CA1265726A1 Compensated fluid flow control valve |
02/13/1990 | CA1265725A1 Compensated fluid flow control valve |
02/07/1990 | CN1006731B Hydraulic control apparatus |
02/06/1990 | US4898360 Valve block assembly |
02/06/1990 | US4898074 Servo-valve arrangement for power steering |
02/06/1990 | EP0351402A4 Load responsive control system adapted to use of negative load pressure in operation of system controls. |
01/31/1990 | EP0352263A1 Fail-fixed servovalve with controlled hard-over leakage. |
01/31/1990 | EP0352257A1 Control lever with load force feedback. |
01/31/1990 | CN2052083U Voltage-limit reverse valve |
01/31/1990 | CN1039288A Composite control valve of pressure and flow proportional to electric current |
01/30/1990 | US4896700 Valve array |
01/24/1990 | EP0351402A1 Load responsive control system adapted to use of negative load pressure in operation of system controls |
01/24/1990 | CN2051687U Manual one-way load releasing valve |
01/24/1990 | CN1038966A Power transmission |
01/23/1990 | CA1264642A1 Piloted valve for braking or speed reducing in hydraulic systems |
01/23/1990 | CA1264640A1 Rotary flow control apparatus |
01/18/1990 | DE3824205A1 Electrohydraulic directional control valve |
01/10/1990 | CN2050897U Three-way slave logical valve |
01/10/1990 | CN2050896U Leader type air pressure controlling valve |
01/08/1990 | EP0352257A4 Control lever with load force feedback. |
01/08/1990 | EP0337991A4 Load sensing circuit of load responsive direction control valve. |
01/08/1990 | EP0297106A4 Load sensing circuit and electrohydraulic control for load compensated directional control valve. |
01/08/1990 | EP0224478A4 Load sensing circuit of load responsive direction control valve. |
01/04/1990 | DE3821849A1 Control arrangement for a hydraulic servomotor |
01/03/1990 | CN1038504A Pressure-sensing autocontrol valve for fluid |
01/03/1990 | CN1038501A Directly pressure feed-back electric servo valve with self-flushing filter of bypassing main valve |
01/02/1990 | US4890647 Hydraulic control valve |
01/02/1990 | CA1264140A1 Metering slot configuration for a valve spool |
12/27/1989 | EP0348058A2 Fluid directing valve |
12/26/1989 | US4889164 Solenoid controlled valve |
12/26/1989 | US4889161 Compensated individual segment flow regulator |
12/21/1989 | DE3820529A1 Control unit for adjacent control in hydraulic support control systems |
12/12/1989 | US4886091 Anti-shock directional control fluid valve |
12/06/1989 | CN2048911U Three-way servo reversing valve |
12/06/1989 | CN2048910U 换向阀 Valve |
11/30/1989 | WO1989011597A1 Synthetisized flow-control servovalve |
11/29/1989 | EP0274481B1 Two-axis force motor |
11/28/1989 | US4883092 Multi-way control valve apparatus |
11/28/1989 | US4883091 Multi-port self-regulating proportional pressure control valve |
11/23/1989 | DE3915524A1 One-way valve |
11/21/1989 | CA1263134A1 High sensitivity magnetic actuator |
11/16/1989 | WO1989011041A1 Hydraulic drive unit for construction machinery |
11/15/1989 | EP0341650A2 Hydraulic drive system for crawler-mounted construction vehicle |
11/15/1989 | EP0341604A2 Piston valve |
11/15/1989 | EP0341530A1 Control device for pneumatic systems, in particular pneumatic cylinders for machines and production machines or production assemblies |
11/07/1989 | US4878418 Distributor for hydraulic cylinders |
11/02/1989 | DE3813020A1 Arrangement for the feed control of a hydraulic actuator |
11/01/1989 | CN1005643B Route valve with hydraulic actuation |
10/26/1989 | DE3812735A1 Component set for 2-way built-in valves |
10/26/1989 | DE3812285A1 Control slide with lever actuation |
10/25/1989 | EP0337991A1 Load sensing circuit of load responsive direction control valve |
10/24/1989 | US4875501 Electromagnetic proportional control valve apparatus |
10/24/1989 | US4875500 Diaphragm type of pilot operated directional control valve |