Patents
Patents for F04B 11 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation (1,551)
09/1996
09/26/1996WO1996029515A1 Multiple piston pump
09/19/1996DE19511677A1 Membrane piston pump, e.g. for abrasive or chemically aggressive media
09/04/1996EP0592411B1 Apparatus for repetitively dispensing a measured volume of liquid
08/1996
08/28/1996EP0602231B1 Hydrostatic machine with axial thrust compensation
08/15/1996WO1996024767A1 Process and device for feeding concrete or other thick materials
08/15/1996WO1996024766A1 Adjustable hydrostatic pump
08/14/1996EP0726392A1 Machine for pumping building materials
08/14/1996EP0592395B1 A pump assembly comprising two displacement pumps
08/14/1996DE19504220A1 Verstellbare hydrostatische Pumpe Adjustable hydrostatic pump
08/08/1996DE19503986A1 Verfahren und Vorrichtung zum Fördern von Beton oder anderen Dickstoffen Method and device for conveying concrete or other thick materials
07/1996
07/18/1996WO1996021519A2 Airless paint sprayer intake dampener and inlet valve spring
06/1996
06/27/1996DE19547308A1 Vibration damping for pumped hydraulic systems
06/26/1996EP0718957A1 Pump for a high pressure cleaning appliance
06/25/1996US5529466 Reciprocating valved piston hydraulic pump assembly for anti-lock braking system
06/13/1996WO1996018036A1 Pump pressure multiplier
06/12/1996CN1124318A Series double hydro-cylinder potential energy balance type full stroke uniform straight motion hydraulic oil pumping machine
05/1996
05/23/1996DE4441449A1 Hydrostatic machine with pistons in cylinders
05/14/1996US5516266 Fuel pump tubular pulse damper
05/08/1996EP0486556B1 Pulseless piston pump
05/01/1996EP0709572A1 Pumping system with pistons displacing fluids at a constant flow rate
04/1996
04/23/1996US5509787 Hydraulic actuator for pressure switch of fluidic system
04/18/1996WO1996011346A1 Automatic gearbox with a positive-displacement pump
04/11/1996DE4435593A1 Automatgetriebe mit einer Verdrängerpumpe Automatic transmission with a positive displacement pump
03/1996
03/28/1996DE19527545A1 Pressure pulse damper with cellular plastics component
03/21/1996WO1996008651A1 Engineered pumping segment
02/1996
02/29/1996DE19531064A1 Hydraulic pump
02/20/1996US5492451 Apparatus and method for attenuation of fluid-borne noise
02/15/1996WO1996004107A1 Hydraulic drive unit
01/1996
01/25/1996DE4425929A1 Radial piston pump for oil suction
01/24/1996EP0582625B1 Process and device for the controlled metering of at least one pourable component
12/1995
12/13/1995EP0686768A2 Positive displacement pump with cylinder end cap
12/13/1995EP0686767A2 Positive displacement pump with compliant ball support means
12/07/1995DE4445521C1 Pump for high=pressure cleaning device
11/1995
11/30/1995WO1995032387A1 Shock absorber for liquid conduits
11/29/1995CN1112663A Electromagnetic pump having an automatic exhaust-control valve
11/15/1995EP0681653A1 Cyclic hydraulic pump.
11/09/1995WO1995030100A1 Method and apparatus for reduction of fluid borne noise in hydraulic systems
11/07/1995US5464330 Cyclic hydraulic pump improvements
10/1995
10/17/1995US5458470 Pumping apparatus
10/05/1995WO1995026470A1 Variable displacement electro-hydraulic pump
10/05/1995WO1995026469A1 Pulsation-poor reciprocating piston pump
10/05/1995DE4410910A1 Pulsationsarme Hubkolbenpumpe Reciprocating pump pulsation
10/05/1995DE4410719A1 Elektrohydraulisch verstellbare Pumpe Electric adjustable pump
10/04/1995EP0587678B1 A pump system
09/1995
09/26/1995US5452646 Hydrostatic motor with axial thrust offset
09/21/1995WO1995025223A1 Low power electromagnetic pump
08/1995
08/30/1995EP0669462A1 Method to adjust the pulse amplitude and concrete pump
08/10/1995DE19503360A1 Pump with precise flow regulation
08/03/1995WO1995020723A1 Hydraulic actuator for pressure switch of fluidic system
07/1995
07/27/1995CA2140198A1 Hydraulic actuator for pressure switch of fluidic system
07/18/1995CA2094185C Pumping of liquified gas
05/1995
05/16/1995US5415528 Solution pumping for maximizing output while minimizing uneven pumping pressures
04/1995
04/27/1995DE4336087A1 Thick-matter accumulator
04/13/1995DE3249765C2 Refrigerating compressor (cooling compressor) encapsulated in an airtight fashion
03/1995
03/22/1995EP0643808A1 Reduced pulsation tapered ramp pump head
03/16/1995WO1995007411A1 Hydraulic pump output pressure compensation system
03/02/1995DE4328520A1 Pulsation dampener (pulsation damper, ripple damper) for liquids
01/1995
01/31/1995US5385452 Hydraulic fluid pressurizer with fluid cushioning means
01/11/1995EP0633400A2 Adaptiv hydropneumatic pulsation damper
01/10/1995US5379593 Liquid pressure source unit for liquid-operated booster
12/1994
12/20/1994US5374169 Fuel pump tubular pulse damper
12/20/1994US5374167 Feed pump for a hydraulic system
11/1994
11/24/1994WO1994020753A3 Cyclic hydraulic pump
11/24/1994DE4323574C1 Hydraulic tool
11/03/1994DE4313878A1 Method and embodiments for the prevention of cavitation processes in an injection pump with bevel edge control
10/1994
10/26/1994EP0621523A2 Method for providing high-precision volumetric flow at low flow rate and apparatus therefor
10/19/1994EP0619859A1 Peristaltic pump having means for reducing flow pulsation.
10/13/1994DE4311930A1 Mechanische Brennstoffpumpe Mechanical fuel pump
10/04/1994US5351716 Concrete distributor system
09/1994
09/15/1994WO1994020753A2 Cyclic hydraulic pump
09/15/1994CA2157906A1 Cyclic hydraulic pump
09/08/1994DE4306921A1 Booster pump for a hydraulic system
07/1994
07/19/1994US5330327 Transfer tube material flow management
07/14/1994DE4301287A1 Slip-controlled hydraulic braking system for vehicle
07/07/1994WO1994015099A1 Solution pumping system for maximizing output while minimizing pumping pressures
07/07/1994CA2145294A1 Solution pumping system for maximizing output while minimizing pumping pressures
06/1994
06/30/1994DE4243667A1 Piston pump for hydraulic system with non-return type inlet valve
06/29/1994CN1088664A Concrete pump with conveying cylinder, especially double-cylinders concrete pump
06/23/1994DE4243075A1 Control system for hydraulic pump
06/22/1994EP0602231A1 Hydrostatic machine with axial thrust compensation.
06/08/1994EP0600168A1 Positive displacement pump
06/01/1994EP0599599A1 Electrohydraulic pump load control system
05/1994
05/31/1994US5316453 Slurry pump with discharge cylinders, especially two-cylinder concrete pump
05/24/1994US5314315 Hydraulic pump output pressure compensation system
05/18/1994EP0597610A1 Liquid pressure source unit for liquid-operated booster
04/1994
04/20/1994EP0592411A1 Apparatus for repetitively dispensing a measured volume of liquid.
04/20/1994EP0592395A1 A displacement pump as well as a pump assembly comprising two displacement pumps.
04/19/1994US5304041 Method and device for dosing pumping
04/14/1994WO1994008138A1 Peristaltic pump having means for reducing flow pulsation
03/1994
03/31/1994DE4302977A1 Hydraulic plant with pump or motor - generates 180 deg. phase-displaced compensation wave against uneven surface of pressure medium flow
03/30/1994EP0589505A1 Pump control system
03/24/1994DE4231785A1 Radial piston pump with resonator - which is surrounded by housing, between which and resonator is intermediate space
03/23/1994EP0587678A1 A pump system.
02/1994
02/16/1994EP0582625A1 Process and device for the controlled metering of at least one pourable component.
02/16/1994EP0401320B1 Hydraulic pump
01/1994
01/26/1994EP0580018A1 Concrete-conveying arrangement
01/25/1994US5281101 Water supply system and method of operation thereof
01/20/1994WO1994001676A1 Hydrostatic machine with axial thrust compensation
01/12/1994EP0578390A1 An integrated electric motor-driven inline hydraulic apparatus
01/05/1994DE4221705A1 Hydrostatische Maschine mit axialem Schubausgleich Hydrostatic machine with axial thrust balancing
1 ... 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16