Patents
Patents for F15B 3 - Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids (1,558)
02/2005
02/08/2005US6851261 Servoactuator having motor-driven actuator with hydraulic force amplification
02/02/2005CN2675463Y Pneumatic hydraulic controller
02/02/2005CN1187531C Hydraulic transformer
01/2005
01/19/2005EP1498204A2 Tool asseembly comprising a first and a second circuit for the actuating means
01/19/2005CN2672382Y Welding metal currugated pipe type piston booster tank
12/2004
12/21/2004US6832749 Valve for controlling fluids
12/15/2004EP1079117B1 Hydraulic locking device
12/10/2004CA2431620A1 Membrane and hydraulic intensifier purification system
12/09/2004US20040244834 Electro-pneumatic air pressure regulator
12/08/2004EP1484512A2 Electro-pneumatic air pressure regulator
12/08/2004CN2661987Y High power superchargeable oil hydraulic cylinder
11/2004
11/18/2004US20040226293 Multilevel speed regulation jack
11/17/2004EP1208321B1 Valve for controlling liquids
10/2004
10/20/2004EP1240435B1 Diamond-shaped fluid powered linkage, system and engine
09/2004
09/30/2004US20040187562 Method and system for the controlled application of fluid pressure to a load, especially for pressure testing pipe
09/22/2004CN2643300Y Small-aperture hydrofracturing ground stress test unit
09/22/2004CN2643049Y Hydraulic pressure transformer
09/15/2004EP1373737B1 Hydraulic pressurization system
09/08/2004EP1453592A1 Dual head pump driven membrane system
09/08/2004CN2639588Y Improved structure of pressure force multipler cylinder
09/02/2004US20040168436 Hydraulic pressurization system
08/2004
08/31/2004US6782800 Diamond-shaped fluid powered linkage, system and engine
08/26/2004WO2004072486A1 Method and device for pressure amplification in cylinders, in particular hydraulic rams
08/26/2004DE10306128A1 Method for increasing pressure in working cylinder has a smaller inner piston to further compress the fluid and achieve a working pressure greater than the pump pressure
08/26/2004DE10195707T5 Hydraulischer Drucktransformator Hydraulic pressure transformer
08/25/2004EP1242746B1 Method and apparatus for generating hydraulic pressure
08/18/2004CN2634166Y 气体自动压力平衡装置 Automatic gas pressure balancing device
08/17/2004US6776080 Hydraulic pressure intensifier
08/12/2004DE19748758B4 Motorischer Stellantrieb Motorised drive
08/11/2004CN2632055Y Multistage speed adjusting jack
08/05/2004US20040148747 Rivet tool with remote intensifier auto fill/recharge system
07/2004
07/22/2004DE10241490B4 Kraftfahrzeug-Luftfedersystem mit Dämpfer Motor vehicle air suspension system with shock absorbers
07/21/2004CN2627266Y 气压增压器 Pressure turbocharger
06/2004
06/30/2004CN2622450Y Hydraulic pressure-boosting speed-increasing amplifier
06/17/2004US20040115070 Pressure intensifier
06/15/2004US6748740 Multilevel speed regulation jack and method of operation
06/10/2004WO2004048786A1 Amplifier assembly
06/02/2004EP1423614A2 Pressure transformer
06/01/2004US6742440 Servo-controlled integral stop for use with a servo-controlled hydraulic piston
05/2004
05/19/2004DE10249524A1 Fluid-Versorgungseinheit, insbesondere hydraulische Versorgungseinheit Fluid supply unit, especially hydraulic power unit
05/19/2004DE10249523A1 Pressure intensifier esp. for hydraulic fluids has high pressure piston to separate drive fluid and pump fluid, with connection between control lines located within movement stroke of high pressure piston
05/11/2004US6732520 Hydraulic system for a press
05/06/2004WO2004038220A1 Fluid supply unit, in particular hydraulic supply unit
05/06/2004EP1415738A1 Rivet tool with remote intensifier auto fill/recharge system
04/2004
04/21/2004CN1146720C Device for monitoring number of bubble in oil, method for mfg. same
03/2004
03/31/2004CN1485546A Hydraulic reinforcement electric cylinder
03/25/2004DE10241490A1 Kraftfahrzeug-Luftfedersystem mit Dämpfer Motor vehicle air suspension system with shock absorbers
03/18/2004WO2002053920A3 Pressure transformer
03/18/2004DE10233358B3 Regelverfahren zum Druckaufbau mittels Druckübersetzern, insbesondere zum Prüfen der Druckfestigkeit von Rohren Control method for pressure build-up by means of pressure intensifiers, especially for testing the compressive strength of tubes
03/10/2004EP1396359A2 Vehicle air suspension system with damper
03/10/2004EP1307330B1 Drive mechanism, particularly for a closing unit, an injection unit or an ejector of a plastic injection moulding machine
02/2004
02/26/2004WO2004016942A1 Device for transmitting a displacement of an actuator with an elastomer ring
02/25/2004CN2604553Y Aligning pressure intensifier
02/17/2004US6691994 Hydraulic lock device
02/12/2004DE10233907A1 Device for transmission of excursion of solenoid, especially for injection valve, has compensating chamber bounded by elastomer ring connected to and sealed relative to housing and to one of the pistons
02/04/2004CN2602206Y Air-operated hydraulic pump
01/2004
01/29/2004US20040018265 Liquid molding pressure control apparatus
01/28/2004EP1384901A1 Control method for building up pressure by means of pressure intensifiers, especially for testing the compression strength of tubes
01/28/2004EP1384566A1 Liquid molding pressure control apparatus and method
01/20/2004US6679056 Pressure booster
01/02/2004EP1373737A1 Hydraulic pressurization system
12/2003
12/31/2003CN1133018C Pressure-reducing and flow rate-increasing swtich liquid pressure source with oil returning back pressure
12/24/2003CN1131944C 压力交换器 Pressure Switch
12/17/2003CN2592930Y Air-oil blower pump
12/10/2003CN1461255A Controller for hydroaulic press and method for operation thereof
12/09/2003US6659731 Pressure exchanger
12/04/2003WO2003100385A1 Servo-controlled integral stop for use with a servo-controlled hydraulic piston
12/03/2003CN2589763Y Improved arrangement for oil and gas separation pressurization cynlinder
12/03/2003CN2589711Y New structure of pressure booster cylinder
11/2003
11/27/2003WO2003027506B1 Pressure amplifying device for hydraulic circuit
11/27/2003US20030217639 Servo-controlled integral stop for use with a servo-controlled hydraulic piston
11/25/2003US6651749 Well tool actuators and method
11/12/2003CN1455119A Hydraulic transformer
10/2003
10/22/2003CN2581739Y Pressurizing device for hydraulic oil cylinder
10/09/2003WO2003027506A3 Pressure amplifying device for hydraulic circuit
09/2003
09/18/2003US20030175380 Drive mechanism, particularly for a closing unit, an injection unit or an ejector of a plastic injection moulding machine
09/11/2003US20030167936 Controller for a hydraulic press and method for the operation thereof
09/10/2003CN2572090Y High-low pressure output converter
08/2003
08/14/2003WO2002052158A3 Hydraulic pressure transformer
08/13/2003CN1117975C Static pressure gas phase pressure guiding device
08/06/2003CN2564786Y Normal pressure pressurizing converter
07/2003
07/29/2003US6598713 Hydraulic locking device
07/23/2003CN2561978Y Assembled gas-liquid power-increasing cylinder
07/17/2003DE10158178C1 Hydraulischer Druckverstärker Hydraulic intensifiers
07/16/2003CN1429995A Fluid pressure exchange technique and fluid pressure exchange device
07/03/2003US20030121261 Servoactuator having motor-driven actuator with hydraulic force amplification
07/02/2003EP1322866A2 Valve for controlling fluids
06/2003
06/25/2003CN2557735Y Diaphragm type pneuamtic amplifier
06/25/2003CN2557734Y Hydraulic station for six-surface press
06/24/2003US6581379 Pressure intensifying apparatus for hydraulic cylinder
06/18/2003EP1318906A1 Controller for a hydraulic press and method for the operation thereof
05/2003
05/29/2003US20030098539 Hydraulic lock device
05/29/2003US20030097924 Hydraulic pressure intensifier
05/28/2003EP1135614B1 Releasable check valve for very high system pressures
05/28/2003DE10158181C1 Hydraulic pressure intensifier comprises a supply connection, a return connection, a high pressure connection, a piston arrangement, a switching valve arrangement
05/28/2003CN2553155Y Pressure booster for hydraulic oil cylinder
05/07/2003EP1307330A1 Drive mechanism, particularly for a closing unit, an injection unit or an ejector of a plastic injection moulding machine
04/2003
04/09/2003CN1408635A Multiple-step speed regulating method for jack and multiple-step speed regulating jack
04/03/2003WO2003027506A2 Pressure amplifying device for hydraulic circuit
03/2003
03/27/2003US20030056509 Pressure booster
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