| Patents for F15B 9 - Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member (1,862) |
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| 05/14/2009 | US20090120085 Power steering apparatus |
| 04/30/2009 | WO2009053145A1 Regulation structure for a hydraulic cylinder unit with cascade status regulator |
| 04/29/2009 | EP1787030A4 Reaction arrangement for brake booster |
| 04/23/2009 | DE102007051857B3 Regeleinrichtung zum Positionsregeln einer Hydraulikzylindereinheit mit Linearisierungseinheit Position control means for controlling a hydraulic cylinder unit with linearization unit |
| 04/23/2009 | DE10004605B4 Hydraulik-Logik-Kreuzkopplung zwischen getrennten redundanten Servoaktuatoren Hydraulic logic crosstalk between separate redundant servo actuators |
| 04/21/2009 | US7520208 Drive device comprising a position controller |
| 04/16/2009 | US20090094975 Hydraulic swivel motor and method for producing the same |
| 04/15/2009 | CN201221505Y Ground turnover air adding brick cutting machine hydraulic device |
| 04/09/2009 | DE19934740B4 Elektromagnetisches Ventil für eine Fahrzeugvorrichtung An electromagnetic valve for a vehicle device |
| 04/02/2009 | WO2009039856A1 Valve actuator system |
| 03/25/2009 | CN101392769A High precision hydraulic power source for directly driving oil pump by speed governing generator |
| 03/19/2009 | WO2009035509A1 Actuator control system implementing adaptive flow control |
| 03/19/2009 | US20090071323 Control system for reciprocating device |
| 03/18/2009 | EP2035667A1 Pneumatic actuating drive comprising an integrated electropneumatic position adjustment |
| 03/17/2009 | CA2639266A1 Control system for reciprocating device |
| 03/11/2009 | CN101384840A Shifting device for a variable-speed vehicle transmission |
| 03/05/2009 | US20090056530 Force amplifier |
| 03/04/2009 | CN101379301A Safety override circuit for pneumatic positioner and method of use thereof |
| 02/18/2009 | CN101368644A A control loop used for positioning throttle part of pneumatic operation control valve |
| 02/18/2009 | CN101368643A Method for detecting fault of pneumatic operation control valve in a control loop |
| 02/18/2009 | CN101368642A Positioner system of a pneumatic actuator |
| 02/04/2009 | CN101358663A Method for performing diagnostics in control loop of pneumatic operation control valve |
| 02/04/2009 | CN100458187C Air servo cylinder apparatus and controlling method therefor |
| 01/29/2009 | US20090025381 Servo drive for power assisted steering |
| 01/28/2009 | CN201186809Y Non-kinetic energy hydraulic automatic corrector for conveyer belt |
| 01/15/2009 | WO2009008384A1 Servo-valve and air actuator using same |
| 01/14/2009 | CN201180703Y Failure protecting equipment of electrohydraulic servo system |
| 01/08/2009 | US20090007559 Servo-control system for hydraulic unit feeding hydraulic fluid to a vibrator |
| 01/08/2009 | DE102007031356A1 Expanding material element for e.g. clutch coupling, has ring-shaped bag including ends axially supported on radial bar of spring-loaded piston rod and housing along moving direction of piston rod |
| 01/07/2009 | CN101338771A Propelling plant for accurately controlling sliding table height and movement |
| 01/01/2009 | US20090000288 System and method for converting kinetic energy from brownian motion of gases or liquids to useful energy, force and work |
| 12/31/2008 | CN201173221Y Electrohydraulic servo system power-off protection device |
| 12/24/2008 | EP2006547A2 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 12/24/2008 | CA2688291A1 Differential pressure control |
| 12/16/2008 | CA2463209C Proportional pressure regulator having positive and negative pressure delivery capability |
| 12/11/2008 | WO2008148662A1 Power boosting device |
| 12/11/2008 | WO2008084367A3 System and method for controlling actuator position |
| 11/30/2008 | CA2632815A1 Rotary and translating displacement device |
| 11/27/2008 | US20080289487 hydraulic distributor provided with a device for detecting seizing |
| 11/26/2008 | EP1366300B1 Method and apparatus for multiple-input-multiple-output of a valve/actuator plant |
| 11/26/2008 | CN201155495Y Water power automatic control shutter gate hydraulic system |
| 11/25/2008 | US7454909 Impedance shaping element for a control system |
| 11/11/2008 | US7448308 Vacuum type booster device |
| 10/30/2008 | WO2008128641A1 Torsional vibration damper for the drivetrain of a vehicle |
| 10/29/2008 | EP1984656A1 Shifting device for a variable-speed vehicle transmission |
| 10/29/2008 | EP1984630A2 Safety override circuit for pneumatic positioner and method of use thereof |
| 10/29/2008 | EP1814769B1 Steering valve and module therefor |
| 10/29/2008 | CN201140801Y Focke packaging machine group strip bag grease seal turning wheel push bar overload safeguard |
| 10/23/2008 | WO2008125132A1 Pneumatic actuator system and method |
| 10/23/2008 | US20080256939 Device for Managing the Displacement of a Hydraulic Motor or a Group of Hydraulic Motors |
| 10/23/2008 | DE102007018405A1 Electro-hydraulic controller for e.g. excavator, has working cylinder including adjustable path and stroke that are proportionally assigned to adjustable path and deflection angle at lever of reference value setting element |
| 10/09/2008 | US20080245221 Brake Booster for Motor Vehicles |
| 10/07/2008 | US7431051 Sewage system for vehicles |
| 10/02/2008 | US20080243274 Control Method and Controller for a Mechanohydraulic System |
| 10/02/2008 | US20080236156 Electro hydrostatic actuator with swash plate pump |
| 09/25/2008 | WO2007097661A8 Electrohydraulic servo drive and hydraulic amplifier |
| 09/25/2008 | DE102007015149A1 Switching force assistance device for use in manual gear box, has control valve provided outside servo housing, where valve components are coupled with drive member by coupling member that leads from servo housing |
| 09/18/2008 | WO2008110882A1 Fluid distributor apparatus and punching method |
| 09/17/2008 | CN101265926A Hydraulic wrench multifunctional pump station |
| 09/17/2008 | CN100419278C Method and apparatus for performing diagnostics in a control loop of a control valve |
| 09/12/2008 | WO2008042861A3 Low consumption pneumatic controller |
| 09/11/2008 | US20080216642 Pneumatic brake booster comprising a nonreturn valve for discharging an internal overpressure |
| 09/09/2008 | US7421938 Positioner for a fluid actuator |
| 09/04/2008 | DE102007009677A1 Pneumatic system for the operation of an actuator or valve assembly, has a communication link for wireless data communication to control the electric component |
| 09/03/2008 | CN201110284Y Hydraulic control valve set for bending machine |
| 08/28/2008 | US20080202327 Pneumatic Servobrake and Diaphragm Therefor |
| 08/21/2008 | DE102007008092A1 Elektrohydraulische Antriebseinrichtung Electro-hydraulic drive means |
| 08/20/2008 | EP1959146A2 Electrohydraulic actuator device |
| 08/14/2008 | US20080190281 Variable force rate vacuum booster |
| 08/14/2008 | DE102007007005A1 Elektrohydraulische Steueranordnung Electro-hydraulic control arrangement |
| 08/13/2008 | CN101243525A Self-actuated cylinder and oscillation spirometer |
| 08/13/2008 | CN101243362A Control method and control element for a mechanical-hydraulic system |
| 07/10/2008 | WO2008081803A1 Egr valve device |
| 07/03/2008 | DE10319484B4 Hydrauliksteuersystem The hydraulic control system |
| 07/02/2008 | EP1937982A1 Electro-hydraulic actuator |
| 07/02/2008 | EP1797337A4 Vacuum brake booster |
| 07/02/2008 | CN100398844C Controller of integrated electric hydraulic brake |
| 06/19/2008 | DE102007057023A1 Actuator control method e.g. for steering systems of motor vehicles or ships, involves generating desired movement of element and providing three channels for flow of liquid |
| 06/13/2008 | CA2613876A1 Bi-stable actuator and drilling system including same |
| 06/05/2008 | US20080127816 Energy dissipation valves for hydraulic cylinders |
| 05/20/2008 | US7374011 Power steering apparatus |
| 05/13/2008 | US7370571 Negative pressure type booster device |
| 05/07/2008 | CN101173690A Closed loop manual control system and method for an electrically operated hydraulic amplifier |
| 05/01/2008 | US20080098881 Closed loop manual control system and method for an electrically operated hydraulic amplifier |
| 04/30/2008 | EP1915650A1 Control method and control element for a mechanical-hydraulic system |
| 04/30/2008 | CN100385150C Eletropneumatical gear-shifting device |
| 04/17/2008 | US20080087163 Drift compensation control method for a machine |
| 04/10/2008 | CA2665171A1 Low consumption pneumatic controller |
| 04/09/2008 | CN101158365A Direct driving type volume servo control power installation |
| 04/08/2008 | US7353743 Multi-valve fluid operated cylinder positioning system |
| 03/27/2008 | US20080072588 Control System For Hydraulic Construction Machine |
| 02/27/2008 | CN201027714Y Hydraulic equipment controlled by servo motor |
| 02/26/2008 | US7337041 Feedback control methods and apparatus for electro-pneumatic control systems |
| 02/26/2008 | US7334512 Vacuum type booster device |
| 02/07/2008 | US20080028923 Hydraulic stroking device, planetary gear automatic transmission, and clutch apparatus |
| 02/07/2008 | DE19727358B4 Druckmittelanlage sowie ein Verfahren zu deren Verwendung Pressure medium system and a method for their use |
| 02/07/2008 | DE10105972B4 Bremskraftverstärker Brake booster |
| 01/30/2008 | EP1882859A1 Improved hydraulic actuator for gearbox of an automobile |
| 01/29/2008 | US7322269 Housing module for a brake booster |
| 01/23/2008 | CN101111684A Hydraulic drive system |