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Matches 151 - 200 out of 1,191

Document Document Title
WO2000065255A8
A mechanism (1) for selectively securing a cover (14) to a flange (12) of a pressure vessel. A plurality of such devices can be employed, using a plurality of studs (10) that extend through matching openings in the flange (12) and cover ...  
WO/2000/068578A1
The invention relates to a device for converting pneumatic energy into hydraulic energy, comprising at least one pneumatic cylinder (1) for relaxation of a pressurized gas and at least one hydraulic cylinder (7) mounted in a hydraulic ci...  
WO/2000/065255A1
A mechanism (1) for selectively securing a cover (14) to a flange (12) of a pressure vessel. A plurality of such devices can be employed, using a plurality of studs (10) that extend through matching openings in the flange (12) and cover ...  
WO/2000/055508A1
A control system (10) for a hydraulic transformer (12) comprises a hydraulic transformer (12) for providing hydraulic pressure to a fluid actuator (22), a hydraulic system (14) for providing hydraulic pressure to the hydraulic transforme...  
WO/2000/050777A1
A hydraulic locking device, wherein a booster (7) having a discharge part (6) communicating with an outer peripheral side hydraulic chamber (5) is installed in a case member (2), an input port (16) feeding an input hydraulic pressure fro...  
WO/2000/037800A1
The invention relates to a device for converting energy being stored in compressed air into mechanical work. Said device comprises the following structural parts: at least one compressed-air reservoir (1) for storing compressed air; seve...  
WO/2000/034664A1
The invention relates to a releasable check valve for use at very high system pressures. The aim of the invention is to provide a check valve in which the poppet piston (70) runs relatively smoothly and in which the seals (74, 86, 87) ar...  
WO/2000/023716A1
The invention relates to a fluid-actuated working device comprising a housing (2) and a piston rod (6) which can be displaced with regard to the housing (2) by fluid force. At least one control valve (38, 38') which can be actuated accor...  
WO/1999/032806A1
The invention relates to an automatic transmission for a motor vehicle, especially a continuously variable transmission. The transmission has a variator, a primary disk set (12) and a secondary disk set (10) having a pushing linked band,...  
WO/1999/017028A1
A pressure exchanger for transferring pressure energy from one fluid flow to a second where two end covers (13, 14), a rotor (11) and a rotor liner (12) are mounted together via a centre bolt (10) in a pressure housing (1) in order to re...  
WO/1998/045109A1
The present invention relates to a hydraulic system for a press comprising a press ram (2), at least one main press cylinder (1) with a primary side (21) for producing press thrust and a device for returning the press ram. The hydraulic ...  
WO/1998/017492A1
The invention concerns a motor vehicle drive system comprising the following components: a compressed air chamber (100); a hydropneumatic converter (101) for converting pneumatic work into hydraulic work; a conformer (102) with an input ...  
WO/1997/021483A1
A process is disclosed for desalinating water, in particular sea water, by reverse osmosis. Salt water (10) is fed under pressure into a membrane module (5) to produce desalinated water which has passed through the membrane system of the...  
WO/1997/017546A1
In order to maintain high efficiency close to isothermy despite high frequencies in a pneumo-hydraulic converter with reciprocating pistons, pipe cluster-heat exchange pipes (38) are provided in the gas working chambers of the converter ...  
WO/1996/041692A1
A hydraulic pressure boosting unit (11) is used in particular in a press operating according to the high inner pressure extrusion process. The hydraulic pressure boosting unit has a docking cylinder (10) with a docking piston that slides...  
WO/1996/030619A1
Pressure converter for mounting above the drill bit at the lower end of a drill pipe for generating a higher fluid pressure in a portion of a drilling fluid flow, comprising a piston (6) being moveable in a cylinder (1, 2, 3). The piston...  
WO/1996/030618A1
Pressure converter for mounting above the drill bit on a drill pipe for generating a higher fluid pressure in a portion of a drilling fluid flow, comprising a piston (6) being moveable in a cylinder (1, 2, 3). The piston has a large pist...  
WO/1996/018825A1
A hydro-pneumatic pressure booster is proposed in which the reservoir chamber (24) is limited by an elastic partition wall (26, 126) instead of a sliding piston.  
WO/1996/018036A1
A device (10) for elevating a pressure acting on a liquid including a liquid pressure elevating mechanism (11) for receiving liquid under a first positive pressure and at a selected volume of liquid per unit of time flow rate from a liqu...  
WO/1996/001953A1
A hydraulic system which automatically connects a pressure pump to a hydraulic ram and disconnects it therefrom, and which at the same time keeps the pressure booster filled with oil.  
WO/1995/033928A1
A pressure intensifier for pressurization of a medium, comprising a low-pressure cylinder (1), in which a low-pressure piston (2) is axially displaceable, two high-pressure chamber (3, 4) which are each arranged coaxially with and on sep...  
WO/1995/013478A1
A two-stage pressure cylinder having a work cylinder (17, 100) with a work piston (18, 108), and piston rod (20, 110) for contact with a work piece, in which the work piston is movable, an oil cylinder (56, 116) to contain hydraulic flui...  
WO/1994/028303A1
An ultrahigh pressure generating device wherein plunger chambers (4a, 4b, 4c) are formed on the rod side of single rod type hydraulic cylinders (7a, 7b, 7c), wherein first, second and standby boosters (1, 2, 3) for pressurizing under an ...  
WO/1994/027794A1
A small and inexpensive ultrahigh pressure control device wherein first and second boosters (1, 2) for pressurizing under an ultrahigh pressure the water taken into plunger chambers (3a, 3b) by virtue of the reciprocating movements of hy...  
WO/1994/001309A1
The subject invention relates to a fluid pressure intensifier (32) for increasing the pressure of an incompressible fluid and comprises a fluid reservoir (112) supplying fluid to a cylinder housing (72). The housing (72) includes first i...  
WO/1993/021444A1
A fluid intensifier (P) comprises a two stage piston (1) within a sleeve (2). Piston (1) provides, by pressure multiplication, a pressure increase to buffer fluid within the intensifier (P). Sleeve (2) is located within an outer sleeve (...  
WO/1993/016288A1
A new kind of pressure transformer (9) has a flow channel (11) and closure means (12) for bringing a gaseous, flowing medium from an initial pressure up to a higher pressure level with only a small supply of external energy.  
WO/1993/005300A1
A modular digital actuator (10) is formed by interconnecting a plurality of modules (12, 14). Each of the modules (12, 14) includes a housing (16) having a pair of different sized axially extending cylinder sections (20, 22) in which is ...  
WO/1992/001155A1
Power booster comprising a hydraulic jack with thrust-reversing device, loacted between a driving force and a resistive element. The power booster consists of cylinders (1) mounted in pairs by means of a yoke (9) rotating on a shaft (10)...  
WO/1991/006781A1
An arrangement in pressure exchangers for transfer of pressure energy from one fluid flow to another, comprising a housing with an inlet and an outlet duct (9, 11, and 10, 12 resp.) for each fluid flow, a rotor (15) which is designed to ...  
WO/1991/004169A1
A control device for hydraulic working cylinders with a hydraulic medium pump (1) driven by a motor (2) which can be caused to communicate with a chamber of at least one lifting cylinder (11) and at least one lock cylinder (14) of the lo...  
WO/1989/003334A1
To prevent energy losses, in particular during cylic energy-consuming operating processes, a dual-lever roulette mechanism (12) is incorporated between the hydraulic accumulator (1) and the consumer to ensure continuous equilibrium betwe...  
WO/1988/005133A1
A pressure exchanger for transfer of pressure energy from a liquid flow of one liquid system to a liquid flow of another liquid system includes a housing (1) with inlet and outlet ducts forming pairs of ducts for each liquid flow. A cyli...  
WO/1987/005973A1
A method of and means for anti-contamination flow control in liquids in a system using a motor unit (1) adapted to be driven by a pressure liquid having its drive coupled to drive a pump unit (6) adapted to pump liquid under pressure to ...  
WO/1987/001161A1
A fluid-driven power plant (10) includes a motor (20) and a combustion energy input device combined in a closed, pressurized system. A balance cylinder (26) provides variable low pressure fluid storage within the system and also operates...  
WO/1983/004288A1
A hydropneumatic pressure converter has a first pneumatic part and a second hydraulic part. The essence of the invention lies in that the first pneumatic portion is formed by a flexible cylinder provided with a front plate having a cylin...  
WO/1983/000540A1
Pneumatically controlled pressure transducer intended to actuate hydraulic working members and provided with a double motor cylinder; on one side thereof there is a pneumatically actuated cylinder, and on the other side a hydraulically a...  
WO/1982/004290A1
An internal combustion driven fluid pumping apparatus for accumulating fluid pressure to be applied against a load includes a two-stroke combustion cylinder (15) having a piston (18) drivingly connected to a piston (21) of a linearly dis...  
WO/1982/001222A1
A device comprising reservoirs (1, 2) for a base and a hardener respectively, feeding (3, 4) and dosing pumps (5, 6), a mixing chamber (7) and an executing member (9). The stability of the pressure of feeding the components is ensured by...  
WO/1982/000501A1
A hydro-pneumatic pumping installation comprises two double action hydro-pneumatic boosters (2, 3). Each pneumatic cylinder (4, 14) of the boosters (2, 3) contains a piston (7, 17) dividing it into two pneumatic chambers (10, 11, 20, 21)...  
WO/1982/000502A1
A hydro-pneumatic pumping installation comprises two double action hydro-pneumatic boosters (2, 3) containing pistons (5, 13) which form in the pneumatic cylinders pneumatic chambers (6, 7, 14, 15) of variable volume connected to the out...  
WO/1981/000547A1
A hydraulic system for trimming a marine outboard drive (49), and wherein a single actuator (11) for moving the propulsion unit (49) is used for both trim and tilt. The actuator (11) is connected to a hydraulic pump (3). An amplifier (5)...  
JP2021085460A
To provide a hydraulic circuit device capable of executing high-speed valve control without increasing the capacity of an apparatus and capable of suppressing a decrease in plant efficiency. When executing a sudden opening operation of c...  
JP6875730B2
To provide a hydrostatic pressure actuator driving system that facilitates weight saving.A hydrostatic pressure actuator driving system 1 has a hydrostatic pressure actuator 10 driven by hydrostatic pressure, a gas generation device 20 t...  
JP6841012B2
To provide a booster for a high-lift work vehicle which shortens a time necessary for crimp work.A booster 12 for a high-lift work vehicle 1 comprises a pressure sensor 14 for detecting the pressure of a working fluid which is sent to a ...  
JP2021001656A
To provide a hydraulic booster device having a small, light and quiet structure.A hydraulic booster device 1 includes: a hydraulic cylinder 4 having a changeover valve part 2 and a pressure boost part 3; a direction control part 7 having...  
JP2021001655A
To provide a hydraulic booster device having a quiet, small and light structure.A hydraulic booster device 1 includes: a hydraulic cylinder 4 having a changeover valve part 2 and a pressure boost part 3; a direction control part 7 having...  
JP6799238B2
Provided is a multi-stage multipurpose hydraulic pressurizer with a variable pressurization rate, comprising a multi-stage pressurizing structure part, a hydraulic oil loop, a control part of the hydraulic oil loop, a pressurizing fluid ...  
JP2020186800A
To provide a booster that has no risk that a selector valve in use may stop in a neutral position.A booster 10 is provided with a pilot selector valve 78 capable of alternately abutting on a first piston 42 and a second piston 46. The pi...  
JP6787905B2
A pressure intensifier device for increasing pressure in a pressurized fluid chamber of a piston/cylinder unit and a casting unit provided therewith for a diecasting machine, and also an associated operating method are provided. The pres...  

Matches 151 - 200 out of 1,191