Patents for F15B 13 - Details of servomotor systems (18,792)
10/1992
10/20/1992US5156065 Control lever apparatus and actuator operation apparatus
10/15/1992DE4111946A1 Hydraulic control for a simple hydraulic engine - has a spring controlling the pressure limiter housed in a separate cartridge
10/15/1992DE4111537A1 Electrohydraulic pilot controlled four way directional hydraulic valve - ensures closed centre operation by spring action combined with spool ends that locate with stop shoulders contacting bushes
10/14/1992EP0508271A1 Slow starting valve
10/07/1992CN2118193U Open and close procedure adjustable flow liminiting electrical liquid reveral valve
10/07/1992CN2118192U Fluid four-way ratio flow valve
10/07/1992CN1018565B Stepless frequency-adjusting and cone valve controlled hydraulic shocking device
10/06/1992US5152312 Automatic shuttle valve
10/06/1992US5152142 Negative load control and energy utilizing system
10/06/1992US5152140 Pressure compensating valve spool positioned by difference in pressure receiving areas for load and inlet pressures
10/01/1992WO1992016756A1 Proportional mechano-electronic actuator means
10/01/1992WO1992016754A1 Hydraulic circuit improved in operability in load sensing system
09/1992
09/30/1992EP0505866A1 Valve with predetermined constant closing force
09/30/1992CN2117489U Expansion change valve
09/30/1992CN2117488U Multifunctional liquid pressure valve
09/29/1992US5150876 Servo valve
09/29/1992US5150574 Hydraulic drive system for civil engineering and construction machine
09/23/1992EP0505349A2 Hydraulic actuator
09/23/1992CN1018379B Combined overflowing and speed-changing valve by hydroelectric proportion
09/23/1992CN1018378B Combined decompressing and speed-regulating valve by hydroelectric proportion
09/22/1992US5148833 High-speed flow control valve
09/22/1992US5148735 Electrohydraulic actuator
09/16/1992EP0503266A1 Hydraulic control device
09/15/1992US5146747 Valve apparatus and hydraulic circuit system
09/10/1992DE4107695A1 Electrohydraulic positioner for branching valve - has pre-control valve slider mechanically coupled to main valve control slider by at least two series connected compression springs
09/09/1992EP0502456A2 Fluid controller with load sensing priority flow control capability
09/09/1992CN2115422U Hydraulic superhigh pressure three-position four-way valve
09/09/1992CN2115421U Electro-hydraulic servo valve with back-oil and back-pressure
09/08/1992WO1992015799A1 Negative load control and energy utilizing system
09/08/1992US5144983 Position-controlled proportional directional valve
09/08/1992CA2077071A1 Negative load control and energy utilizing system
09/02/1992EP0500982A1 Test device for applying mechanical loading to a specimen
09/02/1992CN2114721U Fault detecting hydraulic controlling valve
09/02/1992CN1018082B Directly pressure feed-back anti-pollution electric servo valve
08/1992
08/26/1992EP0500419A1 Proportional valve and control system with a plurality of actuators having each such a valve
08/26/1992EP0500162A2 Poppet valve and valve assemblies utilizing same
08/25/1992US5140815 Valve apparatus
08/20/1992DE4105131A1 Directly controlled directional control valve - has set of control channels in valve sleeve
08/19/1992EP0276222B1 Compensated fluid flow control valve
08/18/1992US5140320 Electric remote control device including pairs of sliding pushers
08/18/1992US5138837 Load independent valve control for a plurality of hydraulic users
08/11/1992US5137254 Pressure compensated flow amplifying poppet valve
08/11/1992US5136930 Apparatus for supplying pressure oil to hydraulic cylinders employed in working machines
08/06/1992WO1992013198A1 Hydraulic circuit having pressure compensation valve
08/04/1992US5135030 Electrohydraulic control system
08/04/1992US5135027 Three-way solenoid valve and method of fabricating same
08/04/1992US5134853 Hydraulic drive system for construction machines
07/1992
07/31/1992CA2035290A1 Check-relief valve for a hydraulic circuit
07/28/1992US5133386 Balanced, pressure-flow-compensated, single-stage servovalve
07/28/1992CA1305644C Power transmission
07/22/1992EP0362409B1 Hydraulic driving unit
07/14/1992US5129618 Hydraulic valve
07/14/1992US5129425 Valve control system
07/14/1992US5129421 Two-position and three-way valve
07/08/1992EP0493972A2 Manifold valve
07/07/1992US5127313 Pressurized oil supply/discharge circuit and valve device for use in said circuit
07/01/1992CN1017276B Fluidic multiplexer
06/1992
06/30/1992US5125323 Pressurized oil supply/discharge circuit and valve device for use in such circuit
06/25/1992DE4040915A1 Control valve for hydraulic system of agricultural vehicle - has single working chamber between supply duct and venting duct and with control slider
06/25/1992DE4040833A1 Pneumatic supply appts. for vehicle central locking system - has single manifold with selective outputs controlled by processor and powered by electric motor or solenoid
06/24/1992EP0491294A1 A counterbalance valve
06/24/1992EP0491155A1 Directional valve for hydraulic motor control
06/24/1992EP0491050A1 Hydraulic drive system and valve device
06/22/1992WO1992011482A1 Optically controlled transducer
06/22/1992CA2098576A1 Optically controlled transducer
06/16/1992CA1303457C Pilot-operated valve with load pressure feedbacks
06/13/1992WO1992010700A1 Control valve
06/13/1992CA2097933A1 Control valve
06/11/1992WO1992009836A1 Screw-in valve
06/11/1992WO1992009809A1 Hydraulic driving system and direction change-over valves
06/10/1992CN2106932U Temp-controlling valve
06/10/1992CN1061837A Feedback-type inertia controller
06/09/1992US5121042 Electro-hydraulic servo mechanism
06/03/1992EP0352257B1 Control lever with load force feedback
06/03/1992CN2106255U Hydraulic programme control change valve
06/02/1992CA1302203C Compensated individual segment flow regulator
05/1992
05/29/1992WO1992007194A3 Control device for hydraulic piston/cylinder unit
05/27/1992EP0487341A1 Fluid control and conditioning units
05/27/1992EP0487173A1 Control device for fluids, especially for compressed air
05/26/1992US5115721 Change-over valve
05/26/1992US5115640 Fluid controller and logic control system for use therewith
05/20/1992EP0485519A1 Pilot control circuit for load sensing hydraulic systems
05/19/1992US5113894 Counterbalance valve
05/07/1992DE4034667A1 Connecting block system for hydraulic circuit assembly - has two common passages for flow of pressurised and return oil through stack of blocks
05/06/1992EP0483585A1 Adjustable proportional throttle valve with feedback
05/06/1992EP0483430A1 Solenoid Valve
05/06/1992EP0483374A1 Control valve provided with pressure compensated valve
05/06/1992EP0340235B1 Distributor for hydraulic cylinders
05/06/1992CN1060896A High-precision feedback branching valve
04/1992
04/30/1992WO1992007194A2 Control device for hydraulic piston/cylinder unit
04/30/1992WO1992007193A1 Modularly assemblable compressed air preparation system for a pneumatic mechanism
04/28/1992CA1299464C Valve base with integral flow controls
04/23/1992DE4033301A1 Hydraulic relief valve - has stepped plunger element for damping purposes
04/23/1992DE4032420A1 Hydraulic safety valve - incorporates servo slide valve with dynamic pressure compensation
04/22/1992EP0318505B1 Solenoid actuated pneumatic valve
04/22/1992CN2102401U Hydraulic lock
04/16/1992DE4032515A1 Modular zusammensetzbares druckluftaufbereitungssystem fuer eine pneumatik Modular assembleable compressed air treatment system for a pneumatic
04/16/1992DE4032078A1 Steuervorrichtung fuer einen hydraulischen arbeitszylinder Control device for a hydraulic cylinders
04/14/1992US5103866 Poppet valve and valve assemblies utilizing same
04/09/1992DE4031458A1 Displacement measurement and remote control device - contains servo valve actuator for hydraulic drive unit with belt driven valve spool