Patents for F15B 13 - Details of servomotor systems (18,792)
04/1992
04/07/1992US5102102 Apparatus for controlling operating reaction of winch
04/02/1992DE4030952A1 Hydraulic jack controller with proportional magnet-operated valve - exerts fine control on fluid flow through port opened and closed by sleeve sliding along pin
04/01/1992EP0477602A1 Adjustable stator retainer assembly
04/01/1992EP0477547A1 Direct drive servovalve having bearing-located motor housing
04/01/1992EP0477546A1 Direct drive servovalve having bearing filter
04/01/1992EP0477370A1 Valve device and hydraulic driving device
03/1992
03/24/1992US5097747 Pilot adjuster-connector for adjusting the speed of pneumatic pressure cylinders
03/24/1992US5097746 Metering valve
03/19/1992DE4028887A1 Housing assembly for hydraulic valve - contains valve spool with two operating positions on either side of neutral position
03/18/1992EP0474872A1 Hydraulic control valve
03/18/1992EP0352263B1 Fail-fixed servovalve with controlled hard-over leakage
03/17/1992USRE33846 Electrohydraulic valve system
03/17/1992US5096643 Method of manufacturing microvalves
03/17/1992US5095806 Device in a hydraulic power system connected to a load driving hydraulic motor
03/17/1992US5095804 Drive for a steam servo valve
03/17/1992CA1297379C Valve manifold stacking base
03/12/1992DE4026849A1 Producing control pressure in hydraulic plant - involves primary control valve to which control pressure conduit is connected
03/11/1992EP0473827A1 Automatic shuttle valve
03/11/1992CN1059391A General-purpose integrated hydraulic controlling valve
03/10/1992US5094268 Regulator having an electrohydraulic connection plate
03/06/1992WO1992004568A1 Modular pneumatic control systems
03/04/1992EP0473030A1 Proportional 4-way seat valve
03/04/1992EP0472887A1 Valve
03/01/1992WO1992004544A1 Load check and pressure compensating valve
03/01/1992CA2088269A1 Load check and pressure compensating valve
03/01/1992CA2049792A1 Proportional seat-type 4-way valve
02/1992
02/27/1992DE4026848A1 Hydraulic priority control valve with pressure limitation - has additional outlet to pressure relief valve to avoid excessive pressure in-line to priority user
02/26/1992EP0471950A1 Combined valve modular control panel
02/26/1992EP0471884A1 Electrohydraulic servovalve
02/26/1992EP0471850A1 Pilot valve
02/26/1992EP0471785A1 Electromagnetic directional control valve.
02/26/1992CN2097310U Electromagnetic controlled reversal valve
02/26/1992CN2097309U Three-stage electric servo-valve for fluid
02/25/1992US5090194 Fluidic multiplexer for fluid servomotors in a gas turbine engine
02/19/1992EP0471311A2 Rotary servo actuator with internal valve
02/19/1992CN2096669U Adjustable valve of wire adjusted
02/19/1992CN1015569B Pressure-sensing autocontrol valve for fluid
02/18/1992US5088384 Hydraulic actuator controlled by meter-in valves and variable pressure relief valves
02/18/1992US5088383 Multiplexed hydraulic control system with multiplexing valve having planar port array
02/18/1992US5088382 Linear unit
02/13/1992DE3744937C2 Valve unit with direction control
02/12/1992CN2095958U Ac electromagnetic pneumatic reversing valve
02/12/1992CN2095957U Cleaning stop valve
02/11/1992US5086803 Solenoid valve and manifold assembly
02/05/1992EP0469641A2 Method of controlling a fluid-powered actuator
02/04/1992US5085125 Optically controlled transducer
01/1992
01/29/1992EP0468944A1 An arrangement for controlling hydraulic motors
01/29/1992EP0468606A1 Multifunctional multiple-way sliding valve
01/28/1992US5083494 Electro-hydraulic actuator with mechanical memory
01/28/1992US5083430 Hydraulic driving apparatus
01/23/1992WO1992001163A1 Hydraulic drive system and valve device
01/22/1992EP0467128A2 Electromagnetic solenoid valve with variable force motor
01/21/1992US5082021 Three way valve assembly with pressure compensating valve
01/21/1992US5081905 Hydraulic pilot operation circuit and valve for quickly discharging oil
01/21/1992US5081904 Locking valve and flow control valve assembly
01/21/1992US5081903 Multiplexed hydraulic control system with multi-bit binary selector signal control
01/20/1992CA2050747A1 Power operated pipe bending mandrel
01/15/1992EP0466582A1 Pressure oil supply/discharge circuit and valve device for use in said circuit
01/15/1992EP0466358A1 Servovalve
01/15/1992EP0465655A1 Hydraulic driving apparatus of civil engineering/construction equipment
01/14/1992US5079988 Hydraulic sensor and transducing apparatus
01/08/1992EP0464966A1 Connecting block with mounting modules and one magnetic valve each for fluids
01/08/1992EP0464305A1 Hydraulic control device
01/07/1992US5078179 Directional control valve
01/02/1992EP0463920A1 Pressure oil supply/discharge circuit and valve device for use in said circuit
01/02/1992EP0463394A1 Electromagnetically actuated directional valve
01/02/1992DE4020476A1 Load-pressure regulated hydraulic control system - monitors conditions to provide regulation of loads
01/01/1992CN2091983U Three-stage electrical fluid servo valve with jet-type force feedback
01/01/1992CN2091982U Combined valve of single-column hydraulic press
12/1991
12/31/1991US5076537 Electromechanical servovalve
12/31/1991US5076327 Electro-fluid converter for controlling a fluid-operated adjusting member
12/31/1991US5076144 Poppet valve device
12/24/1991US5074330 Anti-abnormal-pressure/vacuum valve
12/12/1991WO1991019108A1 Piston-cylinder control device
12/11/1991CN2090449U Multicylinder speed synchronizing valve
12/10/1991US5070898 Metering valve
12/04/1991CN1056664A Copper liquid energy recovering device for nitrogenous fertilizer producing
12/03/1991US5069251 Frictionless plate valve
11/1991
11/30/1991WO1991019106A1 Pilot control circuit for load sensing hydraulic systems
11/30/1991CA2062778A1 Pilot control circuit for load sensing hydraulic systems
11/28/1991WO1991018212A1 Hydraulic system
11/28/1991WO1991018211A1 Control valve provided with pressure compensated valve
11/28/1991DE4017004A1 Spool type hydraulic control valve - makes use of blocking system to save energy
11/26/1991US5067389 Load check and pressure compensating valve
11/21/1991EP0457207A1 Hydraulic control device
11/19/1991US5065793 Fluid controller with load sensing priority flow control capability
11/19/1991US5065666 Sequence valve
11/19/1991US5065664 Control circuit for a cylinder allowing flow between an upper and a lower chamber
11/13/1991EP0298083A4 Load compensated valve
11/13/1991CN2088613U Leading type low-power combined electromagnetic valve
11/12/1991US5063966 Direct drive servovalve having bearing filter
11/12/1991CA1291920C Chip tolerant flapper
11/06/1991EP0455523A1 Device permitting the holding and/or the automatic assembling of pieces, having tool bearing arms mounted on a support block
11/06/1991EP0321475A4 Load responsive system having synchronizing systems between positive and negative load compensation
10/1991
10/29/1991US5060475 Pilot control circuit for load sensing hydraulic systems
10/24/1991DE4013504A1 Hydraulic fluid-proportioning valve - has rotary plate with control groove curving round axis of rotation
10/23/1991CN2087257U Differential valve operated by hydraulic means
10/23/1991CN2087256U Multiple-way valve
10/22/1991US5058484 Electrohydraulic control arrangement for controlling a hydraulic drive
10/22/1991US5058451 Control lever apparatus and actuator operation apparatus