Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 151 - 200 out of 1,704

Document Document Title
WO/2012/038050A1
A hydraulic machine (DDU unit) having a number of piston/cylinder units (10) which can be controlled in each case by means of valves (14, 16) positioned upstream and downstream, which valves can in turn be activated by means of an electr...  
WO/2011/113469A3
The invention relates to a metering pump (1) comprising a base part (2), a drive shaft (11) that can be rotated relative to the base part (2), a pivoting part (9) that can be pivoted relative to the base part (2), a cylinder (3) with a c...  
WO/2012/022444A1
The invention relates to a device having a plurality of valve-controlled piston engines, each of which has a group of cylinder-piston units. Each cylinder-piston unit has a low-pressure valve that can be actively controlled via at least ...  
WO/2011/020552A3
The invention relates to a rotary piston pump (1) for metering a coating agent in a coating installation, comprising several pump units (6-8), each having one cylinder (32) and one rotary piston (31) which carries out a tumbling action i...  
WO/2011/145090A3
A sorption pump working according to the principle of mechanical activation of reactive getter materials at ambient temperature is presented. Pumps of the given type allow maintaining vacuum in different devices and apparatuses by sorpti...  
WO/2012/002141A1
A reciprocating pump can be manufactured without causing variations among products in the manufacturing process and can supply stable flow rate. A reciprocating pump is provided with: a cylinder having a suction opening and a discharge o...  
WO/2011/163274A2
A rotary air connection for an automatic tire inflation system having an air pressure source, the rotary air connection comprising a stationary portion and a rotatable portion rotatably mounted to the stationary portion, the rotary air c...  
WO/2011/114285A3
A pump comprising a housing comprising a rotor chamber, inlet and outlet channels opening into the rotor chamber, and inlet and outlet seals mounted on a surface of the chamber, and a rotor rotatably and axially slidably received in the ...  
WO/2011/010198A3
A fluid pumping device comprising a pump housing (1; 101; 201; 301; 701; 901) containing a piston chamber (11; 101 '; 201 '; 310a, 301b; 701 '; 901 ' ) and a piston (2; 102; 202; 302, 302 '; 702; 902, 902 " ) moving back and forth inside...  
WO/2011/145090A2
A sorption pump working according to the principle of mechanical activation of reactive getter materials at ambient temperature is presented. Pumps of the given type allow maintaining vacuum in different devices and apparatuses by sorpti...  
WO/2011/140089A2
The invention relates to a double-acting pump system for use in moving a fluid. The pump system includes a means for inputting power at a location remote from the double-acting pump. The system allows for manual power input, such as thro...  
WO/2011/114285A2
A pump comprising a housing comprising a rotor chamber, inlet and outlet channels opening into the rotor chamber, and inlet and outlet seals mounted on a surface of the chamber, and a rotor rotatably and axially slidably received in the ...  
WO/2011/116061A1
A novel changeover mechanism for a compressed air driven double diaphragm pump comprises a shaft (21) slidably mounted through aligned apertures (22) in opposing surfaces of the twin diaphragm chambers (23). At the centre of the shaft (2...  
WO/2011/113469A2
The invention relates to a metering pump (1) comprising a base part (2), a drive shaft (11) that can be rotated relative to the base part (2), a pivoting part (9) that can be pivoted relative to the base part (2), a cylinder (3) with a c...  
WO/2011/069494A3
The invention relates to an infusion pump (10) for continuously conveying a fluid, comprising an inlet (20), an outlet (30), a first piston (40) movably supported in a first chamber (50), and a second piston (60) movably supported in a s...  
WO/2011/104543A2
The present invention relates to a method of operating a fluid-working machine wherein the volume of working fluid displaced each cycle is selectable and wherein the volume of working fluid displaced by a first working chamber takes into...  
WO/2011/104546A2
The present invention relates to a fluid working machine (1) comprising a controller (12) and a working chamber (2), an electronically controllable low pressure valve (14) associated therewith and a fast high pressure valve (20) associat...  
WO/2011/104545A2
A method of measuring a property of entrained gas in a hydraulic liquid received by a working chamber of a fluid working motor, wherein the said property is determined from the period of time elapsing between the closure of a first valve...  
WO/2011/104547A2
A fluid-working machine has a working chamber of cyclically varying volume, high and low pressure manifolds, and high and low pressure valves for regulating the flow of fluid between the working chamber and the high and low pressure mani...  
WO/2011/104548A2
Disclosed is a method of detecting a fault in a fluid-working machine comprising a plurality of working chambers of cyclically varying volume, each said working chamber operable to displace a volume of working fluid which is selectable f...  
WO/2011/104549A2
A method of operating a fluid-working machine having a plurality of working chambers of cyclically varying volume in which each working chamber is operable to displace a volume of working fluid which is selectable for each cycle of worki...  
WO/2011/083125A1
The invention relates to a metering device (10; 10a; 10b) comprising a guide tube (20; 20a; 20b), a piston (24; 24a; 24b) inserted displaceably in the guide tube (20; 20a; 20b), an actuating assembly (40; 40a; 42) for exerting a force on...  
WO/2011/007306A3
A pump comprising an electrical motor drive (2) and a pump engine (3), the pump engine having a stator portion (32) and an axially and rotatably movable rotor portion (30) mounted in the stator portion. The electrical motor drive compris...  
WO/2011/069494A2
The invention relates to an infusion pump (10) for continuously conveying a fluid, comprising an inlet (20), an outlet (30), a first piston (40) movably supported in a first chamber (50), and a second piston (60) movably supported in a s...  
WO/2011/043787A3
The pulse pump (10) is driven by an electric motor (12) and gear reduction (14) driving an eccentric rotor (48), which, in turn, oscillates a mechanism (16) actuating a diaphragm (18) to transfer fluid through one-way check valves (22, 2...  
WO/2011/054533A1
In a high-viscosity material delivery device that has a seal element (6) on the basis of elastomer materials (3) for sealing off surfaces (1, 2) that can be moved relative to one another, the seal element has at least one hollow chamber ...  
WO/2011/048456A1
In a fuel pump that includes a pump housing (10) that has fuel passages (Ha, 11b), a plunger (17) that is movably housed in the pump housing (10), a fuel pressurizing chamber (15) that is formed in the pump housing (10) and draws in fuel...  
WO/2011/043787A2
The pulse pump (10) is driven by an electric motor (12) and gear reduction (14) driving an eccentric rotor (48), which, in turn, oscillates a mechanism (16) actuating a diaphragm (18) to transfer fluid through one-way check valves (22, 2...  
WO/2011/020552A2
The invention relates to a rotary piston pump (1) for metering a coating agent in a coating installation, comprising several pump units (6-8), each having one cylinder (32) and one rotary piston (31) which carries out a tumbling action i...  
WO/2011/010198A2
There is described a fluid pumping device comprising a pump housing (1; 101; 201; 301; 701; 901 ) containing at least one piston chamber (11; 101 '; 201 '; 310a, 301 b; 701 '; 901') and at least one piston (2; 102; 202; 302, 302'; 702; 9...  
WO/2011/007306A2
A pump comprising an electrical motor drive (2) and a pump engine (3), the pump engine having a stator portion (32) and an axially and rotatably movable rotor portion (30) mounted in the stator portion. The electrical motor drive compris...  
WO/2010/129098A3
An arrangement for a compressor (20) having a suction valve (36) and discharge valve (56) is provided. The compressor (20) includes a cylinder (24) having a diametral axis (33). A valve plate (28) is positioned to cover the cylinder (24)...  
WO/2010/116190A3
A fluid working machine comprises a working chamber of cyclically varying volume, a high pressure manifold, and an actuated high pressure valve (1) for regulating the flow of fluid between the working chamber and the high pressure manifo...  
WO/2010/129098A2
An arrangement for a compressor (20) having a suction valve (36) and discharge valve (56) is provided. The compressor (20) includes a cylinder (24) having a diametral axis (33). A valve plate (28) is positioned to cover the cylinder (24)...  
WO/2010/122268A1
The invention relates to a positive-displacement pump (10) including a pump body (12) defining a chamber (14) for pressurizing gum, and an element (16) for feeding the chamber (14) with the gum. The feeding element (16) includes an auger...  
WO/2010/116190A2
A fluid working machine comprises a working chamber of cyclically varying volume, a high pressure manifold, and an actuated high pressure valve for regulating the flow of fluid between the working chamber and the high pressure manifold. ...  
WO/2010/019582A8
A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake...  
WO/2010/088780A1
The invention relates to a metering valve (1) having an electric motor drive (2) and a piston/cylinder unit (5), wherein fluid can be delivered from an inlet to an outlet by the vertical motion of the piston (7). According to the inventi...  
WO/2010/081695A1
The invention relates to a method for feeding pasty masses using a pump device which has a piston pump with at least two cylinders with in each case one piston, in which pump device each cylinder is connected via an inlet opening, which ...  
WO/2010/082201A1
A dosing pump comprises an inlet for a solvent, an injection device for an additive, a reciprocating main piston for mixing the solvent with the additive during a suction stroke and for discharging the mixture from an outlet in an evacua...  
WO/2010/060169A1
The present invention refers to a system for actuation in an ad mission valve (5) of a gas compressor (1) comprising at least: one set formed by a cylinder (2) and a piston (3); one electric motor (4), operatively associated with said se...  
WO/2010/060121A1
An apparatus for pumping grease is located within a canister (reservoir) (1) and is mounted on the base (1b) thereof by means of mounting boss (3a & 3b) and to the side wall (1c) by means of bracket (12a &12b). Grease is drawn into the p...  
WO/2010/049765A1
There is described a volumetric pump comprises a housing (3) containing at least one hollow elongated part (2), at least one piston (4) arranged to move back and forth inside said elongated part (2), at least one inlet port (11 ) and at ...  
WO/2010/046953A1
A hydraulic pressure generation device (1) has hydraulic pressure generation means (2) for generating low hydraulic pressure, and also has hydraulic pressure generation means (30) for generating high hydraulic pressure. The hydraulic pre...  
WO/2010/046952A1
A hydraulic pressure generation device (30) has a body case (31), a pair of plunger pumps (50A, 50B) vertically mounted in the body case and respectively having discharge openings at the lower ends of the plunger pumps, a common drive sh...  
WO/2009/019013A3
The invention relates to a wear part (1) for a concrete pump, comprising a base body (2) having at least one opening (9), at least one coating (10, 20) made of wear-resistant material, applied to a circumferential surface (3, 4) of the b...  
WO/2010/019582A3
A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake...  
WO/2010/020241A1
The invention relates to a valve-controlled hydraulic engine and a valve arrangement comprising a closing body (50) for closing a through-opening (43) for a pressure medium, the closing body being adjustable by a first adjusting mechanis...  
WO/2010/019582A2
A reciprocating piston compressor for use in a refrigerant compression circuit comprises first and second intake manifolds, first and second reciprocating piston compression units, an outlet manifold and a first pulsing valve. The intake...  
WO/2009/153605A1
A fluid working machine comprises a controller (12) and a working chamber (2) of cyclically varying volume. The working, chamber has both an electronically controllable primary low pressure valve (14) and a secondary low pressure port (2...  

Matches 151 - 200 out of 1,704