Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 7 - Piston machines or pumps characterised by having positively-driven valving
Patents for F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226)
06/2013
06/20/2013US20130156620 Fuel injection pump including a variable pressure compartment
06/20/2013US20130156610 Pump power consumption enhancement
06/19/2013CN101910562B Method of operating fluid working machine
05/2013
05/16/2013US20130121848 Vibratory Cavitation Pump Lishanski
05/01/2013CN103080547A Method of measuring a property of entrained gas in a hydraulic liquid and fluid-working machine
04/2013
04/25/2013WO2011104548A3 Fluid-working machine and method of operating a fluid-working machine
04/25/2013US20130101442 Air suction pump and method for vacuum sealing vinyl bag using same
04/25/2013US20130098023 Energy recovery control circuit and work machine
04/24/2013EP2582977A2 Rotary air connection with central valve for tire inflation system
04/18/2013US20130094984 Variable displacement compressor shaft oil separator
04/18/2013DE102004019373B4 Drehkolbenmaschine Rotary engine
04/17/2013CN103052799A Fluid-working machine and method of operating a fluid-working machine
04/10/2013CN103038509A Fluid working machine and method of operating fluid working machine
04/10/2013CN103038508A Fluid-working machine and method of operating a fluid-working machine
04/10/2013CN103038507A Fluid-working machine valve timing
04/10/2013CN103038506A Fluid working machine and method of operating fluid working machine
04/04/2013WO2013046156A1 Fluid dispensing system
04/04/2013WO2013045121A1 Fluid discharging system
03/2013
03/05/2013US8388324 Device for metering out a flowable mass using a coaxial rotary piston and plunger
03/05/2013US8387514 Hydrostatic piston machine with output volume flow in the circumferential direction
02/2013
02/27/2013CN102947588A Over-center linkage
02/26/2013CA2602052C Volumetric pump with reciprocated and rotated piston
02/21/2013US20130045123 Internal bellows pump fluid path
02/07/2013WO2013017196A1 Ceramic plunger with at least one control element
02/07/2013US20130034458 Pump device for lubricant
02/07/2013US20130034457 Distributing valve for concrete pump and the concrete pump
02/07/2013CA2843428A1 Ceramic plunger with at least one control element
02/06/2013CN101351642B Micropump
01/2013
01/30/2013EP2551520A1 Ceramic plunger with at least one control element
01/24/2013US20130022484 High-pressure pump
01/24/2013US20130019955 Differential pressure valve with reduced spring-surge and method for reducing spring surge
01/23/2013EP2547908A2 Micropump
01/23/2013EP2547907A1 Over-center linkage
01/23/2013CN102892507A Metering device and metering method
01/22/2013CA2555493C Method for preparing a dairy product
01/17/2013US20130017099 Micropump
01/17/2013DE102011107761A1 Dosierpumpe Metering pump
01/15/2013US8353690 Quad chamber mixing pump
01/15/2013US8353689 Vibratory cavitation pump lishanski
01/10/2013WO2013005159A1 Liquid dispensing system
01/10/2013WO2012148961A3 Hydraulic piston pump with reduced restriction barrel passage
01/02/2013EP2539588A2 Fluid working machine and method of operating fluid working machine
12/2012
12/20/2012US20120321496 Fuel injection pump
12/18/2012US8333567 Viscous fluid pump and related methods
12/13/2012WO2012168157A1 Device for metering lubricants into the machining of metal
12/06/2012US20120308420 Air motor having ceramic valves
12/06/2012US20120308419 Mechanism to Raise the Efficiency of a Reciprocating Refrigeration Compressor
12/06/2012DE102011076751A1 Method for controlling fluid flow in guide portion of e.g. piston-cylinder system to minimize leakage in compressor, involves changing stroke movement into stroke-rotating movement when component is driven in stroke movement
11/2012
11/29/2012US20120301340 Electromagnetic flow rate control valve and high-pressure fuel supply pump using the same
11/28/2012CN102803725A Micropump
11/28/2012CN102794123A Dual chamber mixing pump
11/22/2012US20120294745 Air motor having a modular add on regulator
11/22/2012US20120294744 Air motor having drop tube with knuckle ends
11/22/2012US20120294741 Pump tappet
11/14/2012EP2521620A1 Metering device and metering method
11/13/2012US8308444 Fluid pressure exchange mechanism and method of operating same
11/08/2012US20120282127 Material moving apparatus
11/01/2012WO2012148961A2 Hydraulic piston pump with reduced restriction barrel passage
11/01/2012US20120275933 Hydraulic apparatus return to neutral mechanism
10/2012
10/30/2012US8297239 Gyroscopic rotary engine
10/17/2012EP2511526A1 Reciprocating piston compressor with transport volume control
10/17/2012EP2510234A2 Continuously conveying infusion pump
10/16/2012US8287256 Valve assembly
10/11/2012WO2012138367A1 Pressure exchanger
10/10/2012CN101718265B Sealing component of pumping equipment, distribution valve assembly, pumping equipment and control method
10/04/2012US20120251367 Pump pressure control valve with shock reduction features
10/03/2012CN102713283A Fuel pump
09/2012
09/27/2012WO2012126939A1 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
09/27/2012CA2830130A1 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
09/26/2012CN102691637A Micropump
09/04/2012US8257067 High pressure pump
08/2012
08/30/2012US20120216671 Piston pump
08/29/2012EP2492507A1 Pumping assembly
08/29/2012EP2491248A1 Fuel pump
08/21/2012US8246573 Detecting empty medical pump reservoir
08/14/2012US8241019 Pump element and pump having such a pump element
08/09/2012US20120201706 Plunger Type Water Pump
08/07/2012US8235689 Piston pump with rotating pump actuator
08/07/2012US8235688 Fan
07/2012
07/19/2012US20120180649 High pressure pump
07/04/2012CN101191428B Fluid pressure operated piston engine apparatus and method
06/2012
06/27/2012EP2467602A2 Rotary piston pump for metering a coating agent
06/26/2012US8206125 Operating method for fluid working machine
06/21/2012US20120156075 Collapsible Bilge Pump
06/13/2012CN102498293A Rotary piston pump for metering a coating agent
06/13/2012CN102498292A Fluid delivery system comprising a fluid pumping device and a drive system
06/13/2012CN101514695B Pump
06/12/2012US8197238 Pump apparatus
06/12/2012US8197237 Metering pump and drive device thereof
06/12/2012US8197224 Method of operating a fluid working machine
06/12/2012US8197223 Method of operating a fluid working machine
06/07/2012US20120141309 Pump with side inlet valve for improved functioning in an inverted container
05/2012
05/30/2012EP2456975A2 Fluid delivery system comprising a fluid pumping device and a drive system
05/30/2012CN102483047A 具有转子位置测量系统的泵 A rotor position measurement system of the pump
05/29/2012US8187758 Fuel cell apparatus with a split pump
05/23/2012EP2454481A2 Pump with rotor position measurement system
05/17/2012US20120118138 Fluid delivery system comprising a fluid pumping device and a drive system
05/03/2012US20120103179 Pump unit
05/03/2012DE102010043314A1 Dosing pump for conveying petrol to burner area of heating device of vehicle, has pump chamber volume area provided in cylinder for accommodating fluid by inlet opening during intake stroke of piston
05/01/2012US8167587 Pump assembly with reversible one-way valves
1 2 3 4 5 6 7 8 9 10 11 12 13 ... 23