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Patent Searching and Data


Matches 601 - 650 out of 7,943

Document Document Title
WO/2007/124882A1
The invention relates to a hydraulic fluid reservoir (30) with a high-pressure chamber (32) and a low-pressure chamber (33), wherein the high-pressure chamber (32) equipped with a compensation volume (36) is located in the low-pressure c...  
WO/2007/119328A1
A liquid tank (1) is provided with a tank main body (10) for storing liquid, and a bubble removing apparatus (40) arranged in the tank main body (10) for removing bubbles included in the liquid. The tank main body (10) is provided with a...  
WO/2007/118500A1
Described is a device (5) for storing hydraulic fluid of a hydraulic system (19) of a transmission device (3) having at least one storage space (9) which is delimited by a housing device (7) and a delimiting device (8) and can be operati...  
WO/2007/090825A3
Piston device for converting a flow of fluid into a movement, and vice versa, comprising a rigid hollow body (4) having walls (5, 6) which define an inner housing (9) and at least one rigid piston (1) engaged in said inner housing so as ...  
WO/2007/112775A1
A hydraulic accumulator with an accumulator housing (1), in the interior of which a metal bellows (3) is arranged, the metal bellows having a plurality of membrane discs (17, 19), the edges of which are alternately connected to one anoth...  
WO/2007/104592A1
An accumulator (100) for a hydraulic system, wherein the accumulator (100) comprises a liner (110), a piston (140) and a housing (200), that defines a pressure chamber (PC), for receiving hydraulic fluid at high pressure, wherein the pis...  
WO/2007/101467A1
The invention relates to a method of controlling a hydrostatic drive (1). The hydrostatic drive (1) comprises a hydraulic pump (3) and a hydraulic motor (7). Furthermore, the hydrostatic drive (1) comprises a first and a second hydraulic...  
WO/2007/098795A1
A pressure accumulator, in particular a pulsation damper, having an accumulator housing (1) which defines a longitudinal axis (3) and has an inflow opening (15) and an outflow opening (17) for a fluid, wherein two working spaces, in part...  
WO/2007/090825A2
Piston device for converting a flow of fluid into a movement, and vice versa, comprising a rigid hollow body (4) having walls (5, 6) which define an inner housing (9) and at least one rigid piston (1) engaged in said inner housing so as ...  
WO/2007/083471A1
A metal bellows accumulator having a metal bellows that is fixed at one end in a shell and joined at the other end to a bellows cap, thereby partitioning the inside of the shell into an outer gas chamber and an inner liquid chamber. Even...  
WO/2007/080673A1
A metallic bellows type accumulator that is structured so as to, at the time of zero-down of accumulator, realize valve body compression and sealing, thereby inhibiting the occurrence of burr/sagging and enhancing the closing capability ...  
WO/2007/079935A1
The invention relates to a hydrostatic drive. The hydrostatic drive (1) comprises a hydraulic pump (3) and a hydraulic motor (7). The hydraulic pump (3) can be connected by means of a first working line (5) to a first working line connec...  
WO/2007/071362A1
The invention relates to a vehicle having a drive engine/motor (2) for driving a locomotive drive (6) and for operating at least one hydraulic working circuit (4). The vehicle has a hydraulic accumulator (11) which is connected to a hydr...  
WO/2007/069887A1
The invention relates to a device for damping discharge pulsations in a medium being pumped through a system of pipes in a pulsating manner by a displacement pump that operates with a specific discharge characteristic, which device at le...  
WO2006048976A9
A hydraulic tank enabling stable deforming and reduced in size by reducing its capacity. The hydraulic tank comprises a tank body (1) formed of a box-like body and having return ports (17a, 17b) and suction ports (18a, 18b) formed therei...  
WO/2007/054282A1
According to the invention, an anti-cavitation fluid accumulator (14) for hydraulic circuits has a housing (16), which encloses an accumulator space, and a moveable blocking element which is arranged in the accumulator space and delimits...  
WO/2005/081780A3
The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and ...  
WO/2007/035997A1
A circuit (200) for a regenerative drive system including a motor/pump apparatus (10) coupled to an accumulator (12) via a primary valve device (203). The valve (203) includes parallel valves (204, 205) via which hydraulic fluid under pr...  
WO/2007/033491A1
A gas-biased hydraulic cylinder (1) for compensating for the tare weight of a material handling apparatus to be actuated by the cylinder. A tubular body (2) is capped by a cylinder head (8) and a blind end (6). A piston assembly comprisi...  
WO/2007/030017A1
A pressure accumulator (10) to establish the necessary power to drive and operate external equipment is described, such as hydraulic and/or mechanical systems comprising a main body (12) with an inner, longitudinal, main chamber (14) tha...  
WO/2007/021233A1
The invention relates to a method for arranging a separating piston (18) in a system cavity, where the piston (18) is intended to seal off and separate a liquid medium from a second medium. A first part of a piston (18c) comprised in the...  
WO/2007/020052A1
The invention relates to a hydraulic actuator (10), in particular for a chassis stabilising system, comprising a pressure chamber (16, 18) which is compressed by means of a hydraulic fluid and is coupled to an anti-cavitation pressure ac...  
WO/2007/015121A1
The invention essentially regards a hydraulic fluid arrangement for a hydraulic circuit of a vehicle, especially an industrial vehicle. This arrangement has a hydraulic fluid primary tank (2) located in a first place of the vehicle capab...  
WO/2007/000128A1
The invention relates to a hydraulic accumulator comprising at least one pressure chamber that is fluidically connected to a hydraulic circuit and that is defined between a mobile partition disposed in a housing and a stationary partitio...  
WO/2007/000190A1
A delivery apparatus for pressurised medical liquids comprising a reservoir (1) for medical liquid and a pressurising means (3,10,12) configured for pressurising medical liquid to a driving pressure; with a diffusion barrier (20) arrange...  
WO/2006/134324A2
A hydraulically driven elevator or lift is provided with counterbalance means to at least partly counterbalance the load imposed by the load carrier or lift car. Operation of the counterbalance means, which includes a source of hydraulic...  
WO/2006/130282A1
A hydraulic control system (24) for a work machine (10) is disclosed. The hydraulic control system has a source (26) of pressurized fluid and at least one actuator (20) having a first and a second chamber (58, 56). The hydraulic control ...  
WO2006060638A3
A hydraulic drive system for an actuator uses a pair of pressure compensated hydraulic machines to control flow to and from the drive chambers of the actuator by varying the controlled pressure of one of the machines. The machines are me...  
WO/2006/114074A1
The invention relates to a hydraulic power steering system which comprises a tank and a power steering pump which takes in a pressure medium from an intake area which is decoupled from the prevailing atmospheric pressure on the side (5) ...  
WO2005068849A8
A pressurized hydraulic fluid system includes a charge pump (16), a hydraulic motor (24) drivingly coupled to the charge pump, and a main hydraulic unit (12) adapted to function as a pump to drive the hydraulic motor. The charge pump (16...  
WO/2006/106011A1
A pressure medium accumulator (14), in particular for a slip-controlled vehicle brake system, an accumulator unit comprising a plurality of pressure medium accumulators (14) and a method for manufacturing a pressure medium accumulator (1...  
WO/2006/101334A1
This invention is about the Hydraulic Power Generating System. With more detailed explanation the part of the generated power keep used to produce the fluid pressure to minimize the damage of the power. This invention is composed of the ...  
WO/2006/099489A1
The present invention includes hydraulic systems designed to allow the selection of a source of pressurized hydraulic fluid to lift a load. In one embodiment, a hydraulic system in accordance with the present invention comprises a hydrau...  
WO/2006/092161A1
The invention relates to an expulsion device which is actuated by a pressure medium and which is used to expel objects or liquid materials from a reservoir by means of a drive piston which is impinged upon by a pressure medium, comprisin...  
WO/2006/084748A1
Disclosed is a tank for pressurized liquid, comprising a multitude of individual elements in a common receptacle. Said elements are surrounded by the liquid and reduce their volume when the liquid pressure rises while increasing their vo...  
WO/2006/081745A1
The present invention relates to a hydraulic auxiliary system with an accumulator increasing flow for a concrete pump. The system includes a connecting oil path with an inlet point P and an outlet point B. A check valve locates between t...  
WO/2006/081744A1
The present invention relates to a hydraulic auxiliary system with an accumulator increasing flow for a concrete pump. The system includes a connecting oil path with an inlet point P and an outlet point B. A check valve locates between t...  
WO/2006/070043A1
The invention relates to a system for controlling a mechanical arm, comprising an arm (1) which is articulated with only one degree of freedom. The assembly also includes two cylinders (2 and 3) which are solidly connected to one another...  
WO/2006/066760A1
The invention relates to a hydraulic drive, comprising a hydraulic cylinder (1), divided into a first operating pressure chamber (4) and a second operating pressure chamber (5), by an operating piston (3). The hydraulic drive further com...  
WO/2006/056256A3
The invention relates to a hydraulic unit (2) for providing a pressurized hydraulic fluid at an outlet (36, 36A, B), which comprises an electric motor (14) and a pump (16) operated by said motor for generating pressure. A reservoir (5) h...  
WO/2006/058756A1
The invention relates to a device for converting pressure into a rotary movement or torque, and vice versa, for converting torque into pressure. Said device comprises a stator (1) and a rotor (2). The stator (1) is provided with a circum...  
WO/2006/056256A2
The invention relates to a hydraulic unit (2) for providing a pressurized hydraulic fluid at an outlet (36, 36A, B), which comprises an electric motor (14) and a pump (16) operated by said motor for generating pressure. A reservoir (5) h...  
WO/2006/050905A1
The invention relates to a ventilation device (1) for tanks (2), especially in utility vehicles, that can be filled with a hydraulic liquid and comprise closed hydraulic systems. Said ventilation device contains at least one membrane (34...  
WO/2006/048976A1
A hydraulic tank enabling stable deforming and reduced in size by reducing its capacity. The hydraulic tank comprises a tank body (1) formed of a box-like body and having return ports (17a, 17b) and suction ports (18a, 18b) formed therei...  
WO/2006/040546A1
The pressure vessel (1) for liquid comprises a body (10) containing a substantially non-elastic membrane (22) which divides the body into a liquid chamber (16) for receiving liquid under pressure from a source and a gas chamber (20) for ...  
WO/2006/035298A1
A variable volume container (30) is provided that includes a flexible tube (32) having a wall (34) that defines a variable volume chamber (36). The tube wall (34) includes a pair of generally curved end wall portions (38) and a pair of g...  
WO/2006/027034A1
The invention relates to a hydraulic accumulator, especially a piston accumulator, comprising an accumulator housing (10) and a separating piston that can be longitudinally displaced in the accumulator housing (10) and divides two workin...  
WO/2006/022031A1
A hydraulic lift structure for enhancing hydraulic oil supply/discharge efficiency while preventing failure of a hydraulic cylinder or the like. In a hydraulic lift structure (100) wherein a hydraulic cylinder case (51) internally provid...  
WO/2006/005497A1
The invention relates to a hydraulic control arrangement for damping wagging vibrations. During operation, a hydraulic cylinder (2, 4) of a lifting item of equipment can be connected to a hydraulic accumulator via a damping valve arrange...  
WO/2005/124162A1
The invention relates to a modular unit, comprising at least one filter (10), pump (12) and cooling (14) unit which are fluidically connected to each other by means of a connection module (16) and which can be connected to a tank unit (1...  

Matches 601 - 650 out of 7,943