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Patent Searching and Data


Matches 101 - 150 out of 1,187

Document Document Title
WO/2010/003606A1
The invention provides a system and a method for hydraulic pressure transformation. According to the invention a hydraulic motor (4) is driven on the input side by a first hydraulic connection (1), and connected on the output side to a s...  
WO/2009/156018A1
The invention relates to a pressure conversion device, particularly for use in engine mounts, having a piston device (22, 24) that can travel in a housing (10), said piston device converting a high fluid pressure at low volume flow on th...  
WO/2009/152786A1
In order to increase the pressure of the pressure fluid in cylinders, particularly the hydraulic longwall working in underground mining and tunneling, a control device (21) is used, which is provided with appropriately controllable, unlo...  
WO/2009/112517A1
The pressure supply unit has a pressure generating assembly (10), which generates a supply pressure (PL) for the intermittent operation of a power screwdriver (11). So as to allow a tensioning cylinder unit (33) to be operated alternativ...  
WO/2009/107059A1
Unit constituted by a thrusting element 1 able to deliver a predetermined force and at least a receiving element 2. The receiving element 2 is placed on a path 3 on which it is constrained to slide, for example through rollers. A rod 4 i...  
WO/2009/068703A1
The invention relates to a pneumatic instant transducer containing a quick-action pneumatic valve designed to convert the potential energy of different pressurised gaseous working fluids into kinetic energy and different energy forms. Ac...  
WO/2009/034421A1
A multistage hydro -pneumatic system and methods for converting the potential energy of a pressurized gas, particularly air, into mechanical work when rotating a shaft (1) in one direction, and for producing compressed gas from the mecha...  
WO/2009/030793A1
The invention relates to a pressure-intensifying mechanism consisting of two chambers mounted one inside the other and including two cylinders and two pistons which are interconnected in a particular manner between the two chambers and w...  
WO2007097661A8
The electrohydraulic servo drive comprises a hydraulic motor, a pump, a reduction valve, a two-cascade hydraulic amplifier with a controllable throttle in the first cascade and a distributor in the second cascade, a power limiter, a pres...  
WO/2008/107220A1
The invention relates to a fuel injection system (1) for an internal combustion engine, comprising at least one high-pressure fuel pump (5) supplying fuel to at least one high-pressure fuel accumulator (7), having a plurality of injector...  
WO/2008/056014A1
The invention relates to a liquid pressure converter for use in pumping systems without any external energy input. The system is based on pressure accumulators consisting of devices having an inlet tube and an outlet tube, in which a pre...  
WO2008019889A8
The invention relates to a pressure booster (1) for fluids, in particular hydraulic fluids, having a booster piston (2) which is embodied as a differential piston and having a control piston unit (5), wherein the pressure booster (1) is ...  
WO/2008/019889A1
The invention relates to a pressure booster (1) for fluids, in particular hydraulic fluids, having a booster piston (2) which is embodied as a differential piston and having a control piston unit (5), wherein the pressure booster (1) is ...  
WO/2007/097661A1
The electrohydraulic servo drive comprises a hydraulic motor, a pump, a reduction valve, a two-cascade hydraulic amplifier with a controllable throttle in the first cascade and a distributor in the second cascade, a power limiter, a pres...  
WO/2005/118252A1
An actuator is disclosed, in particular, for a locking unit on an injection compression machine, comprising a hydraulic force translator (2), with two piston units (20, 38) moving relative to each other with different effective areas. Th...  
WO/2005/119068A1
The invention relates to general-purpose systems with transfer of fluids, in particular, gases, by changing their pressure and subsequent transforming it into the kinetic energy of the body (actuator, projectile, etc.). The proposed devi...  
WO/2005/035980A1
The invention relates to a hydrostatic piston engine comprising a cylinder barrel (43) inside of which a first group of cylinder bores (53.1) and a second group of cylinder bores (53.2) are made. The cylinder bores of the first group (53...  
WO/2004/072486A1
A method and corresponding cylinder (1) for pressure amplification in cylinders are disclosed, characterised in that a second pressurising piston (16) with a small piston rod (17) is arranged within the cylinder (1), in other words, with...  
WO/2004/048786A1
The invention concern a pressure amplifier that includes a low pressure inlet for supplying a medium at low pressure, a low pressure piston with a first operational area and at lesat one high pressure piston with a second operational are...  
WO/2004/038220A1
A fluid supply unit (1), in particular a hydraulic supply unit is disclosed, comprising a pressure generator (2) for the fluid, in particular a pump for hydraulic fluids and a pressure outlet (7). The aim of the invention is to broaden t...  
WO2002053920A3
The invention relates to a pressure transformer (1). A movement of at least one piston (2) in at least one cylinder (3), as a result of a pressurisation, is transmitted to a transformer piston (4) in a pressure cylinder (5), by means of ...  
WO/2004/016942A1
The invention relates to a device for transmitting a displacement of an actuator to a setting element. Said device comprises two pistons (6, 7) that delimit two transmission chambers (10, 11) and a compensation chamber (22) with a housin...  
WO/2003/100385A1
Apparatus, and an accompanying method for use therein, that utilizes first (working) and second (stopping) servo-controlled hydraulic pistons (310, 313; 401, 413) wherein the stopping piston acts as a controlled mechanical stop for the w...  
WO2003027506B1
The invention concerns a pressure amplifying device for hydraulic circuit comprising means (1) (2) (3) for filling the circuit up to a predetermined pressure with a large flow rate, and beyond said pressure, for amplifying said pressure ...  
WO2003027506A3
The invention concerns a pressure amplifying device for hydraulic circuit comprising means (1) (2) (3) for filling the circuit up to a predetermined pressure with a large flow rate, and beyond said pressure, for amplifying said pressure ...  
WO2002052158A3
A hydraulic pressure transformer (10) for the conversion of an input hydraulic power (12) to an output hydraulic power (14), and particularly suitable for use in a work machine (17) having a hydraulic work unit (15) requiring a hydraulic...  
WO/2003/027506A2
The invention concerns a pressure amplifying device for hydraulic circuit comprising means (1) (2) (3) for filling the circuit up to a predetermined pressure with a large flow rate, and beyond said pressure, for amplifying said pressure ...  
WO/2003/008076A1
Improvements in product water throughput from a reverse osmosis (RO) membrane achieved by thinner feed spacers in the RO element (22), enhanced recovery (ratio of permeate to feed), pressure recovery of the retentate fluid pressure oppos...  
WO/2003/002876A1
A booster allowing a pump to be reduced in size, eliminating the need of a selector valve, and emitting less noise, comprising two booster units (5, 5') and pressure pumps (11, 11') for feeding low pressure side fluid (A) to the booster ...  
WO2002029254A3
The invention relates to a valve for controlling fluids provided with a valve element (3), which can be axially displaced inside a valve body (5), with a hydraulic chamber (12), which functions as a hydraulic transmission, with a filling...  
WO/2002/086326A1
The present invention relates to a hydraulic pressurization system, in particular for application to pressurization devices operating in accordance with the high hydrostatic pressure principle. In particular, the present invention relate...  
WO/2002/084128A1
A pneumatic-hydraulic pressure amplifier (100) comprising a pneumatic cylinder-piston assembly (1, 2) operated by compressed air fed to said cylinder through a first inlet (10), a co-operated hydraulic cylinder-piston assembly (3, 4) the...  
WO/2002/053920A2
The invention relates to a pressure transformer (1). A movement of at least one piston (2) in at least one cylinder (3), as a result of a pressurisation, is transmitted to a transformer piston (4) in a pressure cylinder (5), by means of ...  
WO/2002/052158A2
A hydraulic pressure transformer (10) for the conversion of an input hydraulic power (12) to an output hydraulic power (14), and particularly suitable for use in a work machine (17) having a hydraulic work unit (15) requiring a hydraulic...  
WO/2002/040872A1
The present invention refers to power enlarging method in which power is enlarged when a fluid flows through a pipe or a passage, which has a larger area at inlet than at outlet. The pipe has a conical shape which has a cross section com...  
WO/2002/029254A2
The invention relates to a valve for controlling fluids provided with a valve element (3), which can be axially displaced inside a valve body (5), with a hydraulic chamber (12), which functions as a hydraulic transmission, with a filling...  
WO/2002/024441A1
The invention relates to a controller for a hydraulic press, comprising a pressing cylinder (1), a reservoir (2), a valve group (3), a pressure medium reservoir (7) and a hydraulic pump (6), connected together by means of a cylinder line...  
WO/2002/011970A1
The invention relates to a drive mechanism, comprising an electromotive drive unit (50) provided with an output element which can move in a straight line (54), a first piston cylinder unit (12) comprising a first active surface (18,19) a...  
WO/2001/094821A1
The invention relates to a valve for controlling liquids, comprising a piezoelectric actuator (2) disposed in an actuator bore (3). The valve is further provided with a hydraulic pressure intensifier (11) and a bellows (5). Said bellows ...  
WO/2001/071199A1
A hydraulic lock device capable of increasing the assured controllability and reliability thereof, reducing the size and increasing the output thereof, and reducing the size and pressure of a hydraulic pressure feeding source, comprising...  
WO/2001/050033A1
A pressure booster comprising a housing (11) with a low-pressure fluid inlet (14), a high-pressure fluid outlet (15), and an inlet (16) and an outlet (17) for compressed air. In the housing (11) there is provided a main piston (22) with ...  
WO/2001/046594A1
A fluid powered linkage (12) has at least three side plates (18) of substantially equal width joined by connectors (17) to form a polygon of variable cross sectional area. An upper plate and a lower plate enclose a variable volume within...  
WO/2001/042662A1
The present invention relates to a method of operating an apparatus (1) for generating high hydraulic pressure and having a low pressure piston (12) being displaceable in a low pressure cylinder (2). Said low pressure piston carries a hi...  
WO/2001/042690A1
The present invention relates to a seal assembly (1) for sealing the gap between two relatively moveable parts (26, 27) to prevent fluid leakage from a high pressure side to a low pressure side. Such a seal assembly generally comprises a...  
WO2000065255A9
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/2001/014774A1
The invention relates to a valve for controlling liquids. The inventive valve is provided with a valve member (8) that can be actuated by means of a hydraulic transmission device (4) and is impinged upon by a pressure spring (10) in the ...  
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...  

Matches 101 - 150 out of 1,187