| Patents for F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226) |
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| 02/27/2014 | WO2014029649A1 Cylinder head for a pump, particularly a high-pressure fuel pump, and a pump comprising a cylinder head |
| 02/20/2014 | WO2014026267A1 Electronically controlled linear pump drive actuator |
| 02/19/2014 | CN102124221B Fluid working machines and methods |
| 02/18/2014 | US8651840 Plunger pump for fabricating soft capsules |
| 02/13/2014 | US20140044577 High pressure pump with reduced seal wear |
| 02/13/2014 | DE102013214216A1 Pump device for use in motor car for pumping e.g. hydraulic oil, has pump piston whose movement is decoupled from movement of pump housing such that pump housing is movable relative to pump piston due to rotation non-uniformities |
| 02/12/2014 | EP2694819A1 Pressure exchanger |
| 02/12/2014 | CN103573574A Pump device for motor vehicle, and use of piston pump |
| 01/29/2014 | EP2689133A1 Piston-type transfer pump device, method for transferring particulate solid matter using such a device, application of the method to the feeding of a gasification reactor |
| 01/28/2014 | US8636481 Embedded built-in air pump |
| 01/23/2014 | WO2014012695A1 Valve assembly |
| 01/22/2014 | EP2687713A1 Valve assembly |
| 01/22/2014 | EP2687712A1 Valve assembly |
| 01/16/2014 | US20140017096 Shock Absorbers |
| 01/09/2014 | US20140010687 High-pressure pump |
| 01/03/2014 | WO2013097006A8 Semi-commanded valve system applied to compressor and method for modulating the capacity of a compressor provided with a semi-commanded valve system |
| 01/01/2014 | CN103492727A Hydraulic piston pump with reduced restriction barrel passage |
| 12/26/2013 | US20130343939 Two-Step Hydraulic Valve |
| 12/25/2013 | CN103470466A Continuous fluid delivery system and method |
| 12/19/2013 | US20130336823 Drawback check valve |
| 12/18/2013 | EP2674622A2 Hydraulic pump with axial pistons which can operate in both directions |
| 12/18/2013 | EP1979614B1 Operating method for a hydraulic machine |
| 12/17/2013 | US8608455 Fluid rotary machine |
| 12/05/2013 | WO2013178315A1 Cryogenic cooling pump and method |
| 12/04/2013 | EP2669517A2 Piston pump with reversible direction of flow |
| 11/28/2013 | WO2013174120A1 Pumping mechanism and control method thereof, and concrete pumping equipment |
| 11/28/2013 | US20130315764 Valve accelerating type dispensing pump |
| 11/27/2013 | EP2665934A1 Piston pump; device for feeding and metering a fluid for medical purposes by means of a piston pump |
| 11/20/2013 | EP2663771A1 Piston pump |
| 11/19/2013 | US8585380 Systems and methods for ex-vivo organ care |
| 11/14/2013 | US20130302195 Low residual inverted pumps, dispensers and refill units |
| 11/14/2013 | US20130302191 Pump and method for its manufacture |
| 10/31/2013 | US20130287611 Double acting refrigeration compressor |
| 10/31/2013 | US20130287609 Arrangement for throttling a fluid flow, and corresponding piston pump for delivering fluids |
| 10/31/2013 | US20130287598 Gas compression system |
| 10/30/2013 | EP2656917A1 Metering device and metering method |
| 10/24/2013 | WO2013156087A1 Diaphragm pump, in particular for use as a detergent dosage pump |
| 10/23/2013 | CN101939540B Continuous fluid delivery system and method |
| 10/10/2013 | US20130266465 High-pressure pump |
| 10/10/2013 | US20130263587 Relief Pressure Control Device for Hydraulic Work Machine |
| 10/03/2013 | US20130259715 Microsystems for compressing or for converting a pressure difference into a displacement |
| 10/03/2013 | US20130255617 Engine having oil pump |
| 10/01/2013 | US8545195 Hydrogen generator with pump |
| 09/26/2013 | WO2013139630A1 Piston pump; device for feeding and metering a fluid for medical purposes by means of a piston pump |
| 09/26/2013 | WO2013139629A1 Piston pump |
| 09/26/2013 | US20130251547 Liquid Lift Pumps for Gas Wells |
| 09/19/2013 | US20130243617 Swash plate type compressor |
| 09/19/2013 | DE102012102274A1 Kolbenpumpe Piston pump |
| 09/12/2013 | WO2013131886A1 Hydrostatic displacement machine |
| 09/12/2013 | WO2013131881A1 Hydrostatic displacement machine |
| 09/12/2013 | DE102013203700A1 Hydrostatic positive-displacement engine e.g. digital adjustable radial piston engine, for road vehicle, has valve slider controlling pressure connection between flow paths, where slider symmetrically flows at opposed sides over channels |
| 09/12/2013 | DE10191359B4 Medienpumpe Medium pump |
| 09/11/2013 | EP2635812A1 Method of controlling a hydraulic machine to reduce torque ripple and/or bearing side load |
| 09/11/2013 | CN101187362B Pump for a fluid, in particular manual pump for use in internal combustion engines operated with diesel fuel |
| 09/04/2013 | CN103282655A Rotary air connection member with central valve for tire inflation system |
| 09/04/2013 | CN101517230B Fluid working machine and method for controlling fluid working machine |
| 08/29/2013 | WO2013126113A1 Rotating compressor valve |
| 08/29/2013 | WO2012163892A3 Inlet valve for a fluid pump and assembly method for an inlet valve for a fluid pump |
| 08/29/2013 | US20130224046 Device for throttling a fluid flow, and corresponding piston pump for delivering fluids |
| 08/22/2013 | US20130216399 Elastomeric signal transmission and motion amplification |
| 08/20/2013 | US8512775 Method for preparing a dairy product |
| 08/15/2013 | US20130209296 Hydraulic Oil Cylinder, Correlative Device Thereof, Hydraulic Cushion System, Excavator And Concrete Pump Truck |
| 08/15/2013 | US20130209285 Mechanical pumping hydraulic unit |
| 08/15/2013 | US20130209283 Hydraulic Working Machine |
| 08/15/2013 | US20130209276 Hydraulic control system |
| 08/08/2013 | WO2013116727A2 Self-cleaning disc valve for piston pump |
| 08/08/2013 | WO2013114436A1 Method of controlling a hydraulic machine to reduce torque ripple and/or bearing side load |
| 08/08/2013 | US20130202458 Pump fluid cylinder including load transfer shoulder and valve seat for same |
| 08/08/2013 | US20130202457 Pump assembly including fluid cylinder and tapered valve seats |
| 08/08/2013 | US20130202455 Disposable pumping system and coupler |
| 08/07/2013 | EP2623779A2 Piston controller, wind turbine generator, and piston control method |
| 08/06/2013 | US8500420 Suction valve with unloader |
| 08/01/2013 | US20130195690 Liquid nitrogen pump equipment load testing and experimenting apparatus and testing and experimenting method thereof |
| 08/01/2013 | US20130195689 Front fork |
| 08/01/2013 | US20130195685 Self-cleaning disc valve for piston pump |
| 08/01/2013 | US20130195682 Compressed Air Supply Assembly and Control Method |
| 07/25/2013 | WO2013109326A1 Valveless reciprocating compressor |
| 07/25/2013 | WO2013109325A1 Valveless reciprocating compressor |
| 07/25/2013 | US20130189140 Valveless reciprocating compressor |
| 07/25/2013 | US20130189139 Valveless reciprocating compressor |
| 07/25/2013 | US20130189127 Adjustable hydraulic pump |
| 07/25/2013 | US20130189126 Hydraulic control circuit |
| 07/24/2013 | EP2617594A1 Digital displacement hydraulic unit |
| 07/18/2013 | WO2013106684A2 Pump system for food machine |
| 07/18/2013 | US20130183167 Operation control device for a positive displacement pump, pump system and method for operating such |
| 07/18/2013 | US20130180236 Power generator for extracting energy from a liquid flow |
| 07/11/2013 | WO2013103954A2 Electro-hydraulic system with float function |
| 07/11/2013 | WO2011104549A3 Fluid-working machine and method of operating a fluid-working machine |
| 07/11/2013 | US20130177449 Operating a piezoelectric actuator membrane of a pressure chamber |
| 07/04/2013 | WO2013098107A1 Translo-rotating actuated rotatory valves for reciprocating compressors related methods |
| 07/04/2013 | WO2013098104A1 Apparatuses and methods for actuating valves |
| 07/04/2013 | WO2013098097A1 Devices and methods for actuating valves |
| 07/04/2013 | WO2013098087A1 Rotary valves having sealing profiles between stator and rotor and related methods |
| 07/04/2013 | WO2013097006A1 Semi-commanded valve system applied to compressor and method for modulating the capacity of a compressor provided with a semi-commanded valve system |
| 06/27/2013 | WO2013092390A1 Reciprocating compressors having timing valves and related methods |
| 06/27/2013 | US20130164152 Differential pressure controlled motor and pump barrier fluids pressure regulation system |
| 06/26/2013 | EP2607698A2 Valves with valve closing member attached to the actuated counter-seat and related methods |
| 06/26/2013 | EP2607697A2 Methods and devices for constructively using the pressure pulsations in reciprocating compressors installations |
| 06/20/2013 | WO2013090698A1 Valve activation in compressed-gas energy storage and recovery systems |
| 06/20/2013 | US20130156622 Pneumatic tool having clockwise and counterclockwise rotation function |