Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 11 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
Patents for F04B 11 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation (1,551)
10/2003
10/21/2003US6634871 Suction-discharge device for fluids comprising a piston within a rotating inner tube and a plurality of suction and discharge holes
10/09/2003US20030190237 A pump as a pressure source for supercritical fluid chromatography involving pressure regulators and a precision orifice
10/08/2003EP1350956A2 Pump as a pressure source for supercritical fluid chromatography
10/08/2003EP1350019A2 Fluid and fuel delivery systems reducing pressure fluctuations and engines including such systems
09/2003
09/30/2003US6626148 Fuel pump
09/25/2003WO2003079000A1 Gradient liquid feed pump system, and liquid chromatograph
09/24/2003CN1444697A Discharge apparatus for reciprocating compressor
09/23/2003US6623256 Pump with inertance value of the entrance passage being smaller than an inertance value of the exit passage
09/23/2003US6623248 System for conveying liquids without pulsing
09/16/2003CA2123695C Peristaltic pump having means for reducing flow pulsation
09/10/2003EP1342911A2 Fuel feed system
09/04/2003US20030164161 Fuel feed system
09/03/2003EP1339986A1 Device for pumping thick or turbulence-sensitive products
08/2003
08/21/2003US20030156952 Method and system intended for fine proportioning of fluids injected into a pumping installation
08/14/2003WO2003067089A1 Fluid pump
08/12/2003US6604919 Fluid apparatus such as a pump or an accumulator
08/06/2003EP1332288A1 Method for controlling a pump arrangement consisting of two hydraulically driven plunger piston pumps
07/2003
07/31/2003US20030143091 Single piston dual chamber fuel pump
07/31/2003US20030143088 Fluid-pumping system employing air-driven pump and employing at least one pulsation dampener
07/31/2003US20030140900 Bypass/leakage cooling of electric pump
07/17/2003US20030133816 Discharge apparatus for reciprocating compressor
07/16/2003EP1327074A1 Arrangement at a piston engine and method of controlling the pistons
07/02/2003EP1322936A2 Microfluidic devices and methods of use
06/2003
06/05/2003WO2003045130A1 Electronic proportioner using continuous metering and correction
05/2003
05/08/2003US20030086789 Multiple-compressor system having base and trim compressors
05/06/2003US6558134 Fluid intensifier pump system
04/2003
04/01/2003US6540487 Cavitation control and anti-cavitation elements, especially in rotary pressure exchangers; reverse osmosis of sea water
03/2003
03/27/2003WO2003024613A1 Device for conveying powder and method for operation thereof
03/27/2003WO2003024612A1 Device for conveying powder and method for operating the same
03/27/2003US20030059314 Multi-piston engine, such as a pump or compressor, with improved vibrational behaviour
03/25/2003US6536457 Fluid and fuel delivery systems reducing pressure fluctuations and engines including such systems
03/13/2003US20030047993 Hydraulic pump unit for vehicle brake control system
03/11/2003US6530761 Double-acting, two-stage pump
02/2003
02/27/2003WO2002079650A3 Elecronic motor torque control for positive displacement pumps
02/27/2003US20030039565 Suction-discharge device for fluids
02/18/2003US6520756 Piston pump
02/13/2003WO2003012296A1 Pumping arrangement
01/2003
01/30/2003US20030021709 Plunger pump device
01/30/2003US20030021700 Fluid intensifier pump system
01/28/2003US6510780 Ball screw driven pump
01/22/2003EP1276991A2 Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of the displacement principle
01/16/2003WO2003004872A1 Piston pump
01/14/2003US6506030 Reciprocating pumps with linear motor driver
01/08/2003EP1273800A1 Peristaltic pump for dosing a fluid
12/2002
12/26/2002US20020197166 Precision hydraulic energy delivery system
12/25/2002CN1097164C Refrigerating agent compressor with improved pressure chamber
12/24/2002US6497561 Downstroke sucker rod pump and method of use
12/19/2002WO2002101241A1 Double-acting reciprocating downhole pump
12/19/2002US20020189805 Double-acting reciprocating downhole pump
12/18/2002EP1068122B1 Anti-lock-up vehicle braking system
12/17/2002US6494685 Pump and motor assembly with constant pressure output
12/12/2002WO2002090771A3 A liquid pumping system
12/10/2002US6491065 Surge suppression apparatus
12/05/2002US20020182113 Displacement syringe pumps; process control; analysis devices
12/05/2002DE10126445A1 Piston pump esp. for lubricant, for transmissions, IC engines, etc. with lubricant volume larger than consumer demand pressed into reservoir during pressure stroke
12/03/2002US6488487 Pulsation damping device
11/2002
11/28/2002WO2002095231A1 Discharge apparatus for reciprocating compressor
11/14/2002WO2002090771A2 A liquid pumping system
10/2002
10/17/2002WO2002081918A1 Oscillating displacement pump
10/17/2002WO2002081917A1 Displacement pump and ancillary equipment
10/17/2002DE10117418A1 Oszillierende Verdrängerpumpe Reciprocating positive displacement pump
10/10/2002WO2002079650A2 Elecronic motor torque control for positive displacement pumps
10/10/2002CA2441361A1 Elecronic motor torque control for positive displacement pumps
10/09/2002EP1247980A2 Double-acting, two-stage pump
10/03/2002US20020141875 Pump and motor assembly with constant pressure output
10/02/2002CN1372078A 泵 Pump
09/2002
09/26/2002US20020136644 Radial piston pump
09/26/2002DE10113649A1 Radial flow piston pump has pump housing with several cylinder bores and a ventilation non-return valve at highest point in pressure collecting chamber
09/19/2002WO2002072398A1 Piston pump
09/19/2002WO2000001947A3 Pump mechanism
09/19/2002DE10112951A1 Radial piston pump has damping piston fitted with play in each pumping piston
09/19/2002DE10112618A1 Kolbenpumpe Piston pump
09/18/2002EP1240429A1 Multi-piston engine, such as a pump or compressor, with improved vibrational behaviour
09/12/2002WO2002070896A1 Continuous-flow fluid dosing device
09/12/2002WO2002053900A3 Fluid and fuel delivery system reducing pressure fluctuations
09/12/2002US20020127736 Microfluidic devices and methods of use
09/10/2002US6446435 Hydraulic braking system for automobiles
09/04/2002EP1236900A1 Pump
09/04/2002EP1236893A1 Dosing device with continuous fluid flow
08/2002
08/22/2002WO2002064977A1 A damper device for a piston pump
08/22/2002US20020114716 Pump
08/08/2002WO2001077529A3 Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of the displacement principle
07/2002
07/25/2002DE10103014A1 Radial piston pump e.g. gear oil pump for motor vehicles has feed pistons containing regulating arrangement for gear oil flow into/out of cylinder bores
07/11/2002WO2002053900A2 Fluid and fuel delivery system reducing pressure fluctuations
07/11/2002WO2002029106A3 Microfluidic devices and methods of use
07/04/2002US20020083987 Fluid and fuel delivery systems reducing pressure fluctuations and engines including such systems
07/02/2002CA2208116C Airless paint sprayer intake dampener and inlet valve spring
06/2002
06/18/2002US6406273 Pressure fluctuation dampening system
06/13/2002WO2002046612A1 Device for pumping thick or turbulence-sensitive products
06/11/2002US6401965 Refrigerating agent compressor with improved pressure chamber
06/06/2002DE10055986A1 Verfahren zur Steuerung einer aus zwei hydraulisch angetriebenen Plungerkolbenpumpen gebildeten Pumpenanordnung Method for controlling a pump arrangement formed from two hydraulically driven plunger piston pumps
05/2002
05/22/2002EP0883744B1 Pump
05/16/2002WO2002038958A1 Method for controlling a pump arrangement consisting of two hydraulically driven plunger piston pumps
05/07/2002CA2293516C Reciprocating pumps with linear motor driver
05/01/2002CN1083943C Electronic cam compensation of pressure change of servo controlled pumps
04/2002
04/24/2002CN1083531C High pressure fuel pump for jet engine in cylinder
04/16/2002US6371740 Jet engine fuel delivery system with non-pulsating diaphragm fuel metering pump
04/11/2002WO2002029106A2 Microfluidic devices and methods of use
04/10/2002EP1038108B1 Refrigerating agent compressor with improved pressure chamber
04/09/2002US6368084 Downstroke sucker rod well pump
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