Patents
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)
01/2008
01/22/2008CA2506405C Hydraulic circuit and method for operating a gripping device
01/17/2008DE102007004494A1 Elektrohydraulisches Regelsystem zur Betätigung von einem Aktuator in einem Kraftfahrzeug An electro-hydraulic control system for the actuation of an actuator in a motor vehicle
01/16/2008CN100361853C Power steering device
01/15/2008US7318370 Tie rod for booster and booster comprising such a tie rod
01/03/2008DE10361668B4 Verfahren und Vorrichtung zum Steuern des Solenoidventils eines Automatikgetriebes eines Kraftfahrzeugs Method and apparatus for controlling the solenoid valve of an automatic transmission of a motor vehicle
12/2007
12/27/2007US20070295200 Tie rod-type booster comprising a reinforced sealing ring
12/21/2007WO2007092476A3 Safety override circuit for pneumatic positioner and method of use thereof
12/19/2007CN200993263Y Constant pressure difference tracking pressure pneumatic control valve
12/11/2007US7305914 Hydraulic actuator control valve
11/2007
11/29/2007WO2007134440A1 Unattended pneumatic device to activate a tool operated by the displacemet of an operator
11/22/2007US20070266850 Vacuum booster of brake device
11/21/2007EP1656274B1 Hydraulic drive system used for the covers of vehicle openings
11/19/2007CA2547312A1 Autonomous pneumatic device to activate a tool operated by the movement of an actuator
11/15/2007DE102006022149A1 Fluid-pressure actuated power amplifier device for manual shift of car gearing, has actuating shaft coupled with actuating stick and with gear which is divided in circuit-lateral part and in gear lateral part
11/14/2007EP1853826A2 Hydraulic valve
10/2007
10/23/2007CA2454938C Servo-valve control device and servo-valve control system with abnormality detection
10/11/2007WO2007114725A1 Transducer for an automatic control device
10/10/2007CN100342155C Method and apparatus for controlling a solenoid valve of an automatic transmission of a vehicle
09/2007
09/26/2007CN101042149A Hydraulic power system controlled by servo electric machine
09/20/2007DE102006012146A1 Low-pressure brake booster pressure calculating method for modern motor vehicle, involves determining brake booster pressure in brake booster, and evaluating hydraulic brake pressure in hydraulic brake system connected to booster
09/19/2007CN101038004A Burning machine inlet guide blade adjusting device
09/13/2007WO2007101754A1 Shifting device for a variable-speed vehicle transmission
09/11/2007US7267040 Booster with reduced dead travel and a braking system comprising such a booster
09/05/2007EP1828618A2 Hydraulic drive system
08/2007
08/30/2007WO2007097661A1 Electrohydraulic servo drive and hydraulic amplifier
08/30/2007US20070199436 Electrically actuated brake booster
08/21/2007US7260450 Apparatus and method for controlling elastic actuator
08/17/2007CA2573537A1 Deflector assembly, valve arrangement for a deflector assembly and method for calibrating same
08/16/2007WO2007092476A2 Safety override circuit for pneumatic positioner and method of use thereof
08/16/2007CA2640812A1 Safety override circuit for pneumatic positioner and method of use thereof
08/15/2007CN2934689Y Delayed automatic reset air spring capable of being locked
08/09/2007DE19902107B4 Verdrängungssteuervorrichtung für eine verstellbare Hydraulikeinheit A displacement control device for a variable displacement hydraulic unit
08/09/2007DE19814147B4 Schwenkzylinder-Steuerungsvorrichtung und elektromagnetisches Stromregelventil Swing cylinder control device and electromagnetic flow control valve
08/08/2007EP1814769A1 Steering valve and module therefor
08/01/2007CN1329725C Servo-controlled integral stop for use with a servo-controlled hydraulic piston
08/01/2007CN1329145C Device for hydraulically adjusting rollers of strand guiding segments of continuous casting installation
08/01/2007CN101008409A Push-rod type non-leakage open-loop hydraulic system integrated with diaphragm and sealing ring
07/2007
07/11/2007CN1325804C Circuit for controlling discharge amount of hydraulic pump
07/10/2007US7240602 Brake control device
07/04/2007CN1993557A Fluid pressure unit and control method for the same
07/03/2007CA2218674C A hydraulic arrangement for turning the actuator of a rock drilling machine
06/2007
06/28/2007US20070144339 Vacuum type booster device
06/27/2007CN1989302A Control system and control method for fluid pressure actuator and fluid pressure machine
06/26/2007US7234384 Pneumatic booster with shifted valve seats
06/21/2007US20070137473 Actuation unit for a hydraulic vehicle brake
06/21/2007DE112005001879T5 Steuerungssystem und Steuerungsverfahren für Fluiddruckstellantrieb und Fluiddruck-Maschine Control system and control method for fluid pressure actuator and the fluid pressure machine
06/20/2007EP1797337A1 Vacuum brake booster
06/16/2007CA2530727A1 Load sensing hydraulic system for plow/spreader vehicles
06/06/2007EP1793127A1 Fluid pressure unit and control method for the same
05/2007
05/31/2007US20070119297 Linear hydraulic amplifier
05/24/2007US20070118252 Apparatus and method for controlling elastic actuator
05/23/2007EP1787030A2 Reaction arrangement for brake booster
05/23/2007CN1969127A Feedback control methods and apparatus for electro-pneumatic control systems
05/16/2007CN1316166C Actuator cylinder
05/15/2007US7216577 Vacuum booster with low force loss
05/01/2007US7210394 Method and apparatus for controlling air cylinder
04/2007
04/26/2007DE102005049959A1 Servoantrieb für Servolenkung Servo drive for power steering
04/24/2007CA2340351C Device for hydraulically adjusting the rollers of strand guiding segments of a continuous casting installation
04/18/2007CN1311170C Servo valve controller with abnormal detection function and servo valve control system
04/05/2007DE20122687U1 Druckmittelbetriebener Schaltkreis zur Einstellung des oberen und unteren Totpunkts des Stanzzylinders einer Stanzmaschine A fluid operated circuit for setting the upper and lower dead point of the cylinder punching a punching machine
04/04/2007EP1769159A1 Feedback control methods and apparatus for electro-pneumatic control systems
03/2007
03/29/2007DE19632622B4 Servoventil Servo valve
03/27/2007US7194946 Pneumatic servomotor for power-assisted braking, the servomotor having a crimped diaphragm
03/22/2007WO2006092274A3 Hydraulic valve
03/22/2007US20070062365 Vacuum type booster device
03/15/2007WO2007029009A1 Electro-hydraulic actuator
03/15/2007US20070056438 Booster with reduced dead etc
03/08/2007DE10307993B4 Hebesteuerungs-bzw. Lifting or control. Regelungssystem für eine Lasthebeeinrichtung sowie Verfahren zum Betrieb einer Lasthebevorrichtung A control system for a load lifting device and method for operating a lifting device
03/06/2007US7185939 Hydraulic drive system for vehicle roofs
03/06/2007US7185576 Hydraulic servo-steering valve with steering moment superimposition
03/06/2007CA2288409C Traction lock/momentary override
03/01/2007US20070044648 Vacuum booster with low force loss
02/2007
02/28/2007CN1301845C Injection-moulding machine and device for controlling hydraulic actuator
02/27/2007US7184858 Apparatus and method for controlling elastic actuator
02/22/2007WO2007020126A1 Control method and control element for a mechanical-hydraulic system
02/22/2007CA2618143A1 Control method and controller for a mechanohydraulic system
02/21/2007CN1301372C Worm wheel motor of pneumatic tool
02/20/2007US7178448 Air servo cylinder apparatus and controlling method therefor
02/15/2007US20070034076 Hydraulic power steering system
02/15/2007DE10253340B4 Betätigungsventil für einen zweiseitig wirksamen Pneumatikzylinder sowie Verwendung eines solchen Betätigungsventils für mittels Pneumatikzylindern ansteuerbare Spulengatter Actuation valve for a two-sided effective pneumatic cylinder and use of such operating valve for controllable by means of pneumatic cylinders creel
02/13/2007US7174825 Hydraulic power steering apparatus
02/12/2007CA2556122A1 Electro-hydraulic manifold assembly with mounted pressure sensors
01/2007
01/31/2007CN1297753C Improved slide valve in hydraulic copying general pipe for controlling motion of punch hammer in punch
01/24/2007CN1296626C Hydraulic circuit for crane
01/21/2007CA2552060A1 Load sense boost device
01/18/2007US20070012172 Control Valve For a Hydraulic Power Steering System
01/11/2007US20070006725 Housing module for a brake booster
01/10/2007CN1294001C Control device of hydraulic actuator in injection-moulding machine
01/09/2007US7159953 Brake servo unit comprising a reaction disc device
01/09/2007CA2285617C Control system for an oscillation cylinder
01/04/2007WO2007000052A1 Self-actuated cylinder and oscillation spirometer
01/04/2007US20070000378 Negative pressure doubling device
01/04/2007CA2613547A1 Self-actuated cylinder and oscillation spirometer
01/03/2007EP1588058B1 Control unit for a pneumatic actuator operating a roof smoke extractor flap
12/2006
12/29/2006CA2511070A1 Self-actuated cylinder and oscillation spirometer
12/28/2006US20060288859 Vacuum type brake booster
12/28/2006US20060288858 Negative pressure type booster device
12/21/2006DE10248797B4 Hochgeschwindigkeitsantriebsverfahren und -vorrichtung High-speed driving method and apparatus
12/19/2006US7150330 Hydraulic circuit and method for operating a gripping device
12/14/2006DE19626192B4 Steuereinrichtung zur Steuerung eines hydrostatischen Servoantriebs Control means for controlling a hydrostatic drive Servo
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