Patents
Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723)
05/1988
05/19/1988DE3727853A1 Axial piston pump
05/19/1988DE3638827A1 Hydrodynamic pump
05/18/1988CN87212157U 径向柱塞泵 Radial piston pump
05/18/1988CN87101496A 环状阀泵 Ring valve pump
05/17/1988US4744288 Axial piston pumps and motors
05/17/1988CA1236757A1 Thin valve plate for a hydraulic unit
05/11/1988EP0266806A2 Hydraulic motor comprising radially arranged, tubular propulsion elements
05/11/1988EP0266744A2 Ring valve pump
05/11/1988DE3734926A1 Piston motor, especially radial-piston motor
05/05/1988WO1988003228A1 A hydraulic machine, especially a high-pressure hydraulic multi-cylinder pump
05/05/1988WO1988003227A1 A multi-cylinder displacement pump with wobble-plate drive
05/05/1988DE3637174A1 Piston engine with changeable displacement
05/03/1988US4741251 Swashplate assembly for a swashplate type hydraulic pressure device
04/1988
04/27/1988CN87105809A Static pressure thrust bearing device for axial piston machines
04/27/1988CN86106601A Cylinder piston type rotary mechanism with a centre-fixed ball shaft
04/19/1988US4738185 Swash plate-type pump-motor
04/13/1988EP0263218A1 Hydraulic mechanism with fluid distribution disk and counter disk
04/12/1988CA1235022A1 Slanted plate mechanism, especially for functional control of a pump
04/05/1988US4735050 Static hydraulic pressure type continuously variable transmission
03/1988
03/31/1988DE3725979A1 Hydrostatic axial-piston machine
03/24/1988WO1988002070A1 A fluid-displacement machine
03/16/1988CN87201548U Self-control vertical reciprocating pump
03/15/1988US4731181 Apparatus for membrane separation
03/15/1988US4730546 Rotor bush assembly in fluid machines
03/15/1988US4730366 Apparatus for delivering portions of a pasty substance
03/10/1988DE3628769A1 Radial piston pump
03/09/1988CN87207320U Axial plunger fuel pump with a sloping cam plate
03/08/1988US4729720 Apparatus for continuously generating hydraulic pressure
03/08/1988US4729717 Power transmission
03/02/1988EP0257621A2 Thrust hydrostatic bearing device for use in axial piston machine
03/01/1988CA1233343A1 Motion converting mechanism
02/1988
02/25/1988WO1988001349A1 Hydraulic pump control unit
02/24/1988EP0256389A2 Radial plunger pump driven by motor
02/18/1988DE3627375A1 Adjusting device for an axial-piston slant-axle hydraulic control unit
02/18/1988DE3626619A1 Hydraulic pump or hydraulic motor of adjustable volume of displacement
02/16/1988US4724743 Radial piston machine having piston shoes sealingly contained on the bed of the piston by holding pins
02/16/1988US4724742 Motor or pump mechanism having at least two distinct active cylinder capacities
02/09/1988US4723892 Constant power variable volume pump
02/09/1988US4723477 Control body arrangement for pumps, motors or engines
02/03/1988EP0255034A1 Axial piston machine with a flush-circuit-device
02/03/1988CN87104630A Hydraulic energy exchanger
02/02/1988US4722671 Cylinder block for a refrigeration compressor
01/1988
01/28/1988WO1988000640A1 Rotary piston engine
01/28/1988WO1988000639A1 A hydrocyclic motor
01/28/1988DE3623393A1 Hydraulic axial piston pump
01/27/1988CN87201540U Double action piston type reciprocating pump
01/21/1988DE3623489A1 Rotating piston machine
01/19/1988US4719843 Hydraulic mechanism, engine or pump, provided with rollers mounted on the pistons and with members for holding said rollers in position
01/13/1988EP0252715A2 Radial piston fluid pressure pump or motor
01/07/1988EP0251948A2 Piston pump with a rolling diaphragm
12/1987
12/29/1987US4715788 Servo control variable displacement pressure compensated pump
12/29/1987US4715266 Rotary fluid energy converter
12/23/1987DE3620913A1 Pump
12/16/1987EP0249175A2 Pump means
12/01/1987US4710107 Swashblock lubrication in axial piston fluid displacement devices
11/1987
11/25/1987EP0246440A2 Conveying device for pasty products
11/24/1987US4708605 Piston pump with rotating piston having a universal joint
11/10/1987US4704948 Radial piston machine
11/10/1987CA1229025A1 Pressure limiter
11/10/1987CA1229015A1 Variable pressure control
11/03/1987US4703906 Airborne craft with an inclinable upper structure
10/1987
10/29/1987DE3712412A1 Device for improving the adhesion of the non-return valves constructed as plug-in cartridges in the housing of a radial piston pump
10/29/1987DE3614257A1 Hydraulic swash-plate axial piston machine
10/29/1987DE3613965A1 Vane cell pump or radial piston pump
10/28/1987EP0242550A2 Motor pump unit for a high-pressure cleansing apparatus
10/21/1987EP0242281A1 Multipiston pump provided with blade valves
10/21/1987EP0241898A2 Swashblock lubrication in axial piston fluid displacement devices
10/20/1987US4701113 Pump arrangement which includes a working chamber which is bordered by a coned ring with a seal lip on the inner face of the coned ring
10/20/1987CA1228222A1 Method of manufacturing a die-cast wobble plate assembly
10/14/1987CN86102174A Cylinder head for refrigerating compressor
10/13/1987US4699571 Control valve for a variable displacement pump
09/1987
09/23/1987EP0237750A2 Tilting bearing for the regulating device of an axial piston machine
09/22/1987US4695230 Power transmission
09/22/1987CA1227084A1 Pump with ring retained floating wrist pins and connecting rods
09/17/1987DE3619821A1 Dosage piston pump with restoring spring for pumping liquid media
09/11/1987WO1987005366A1 Radial piston pump
09/09/1987EP0235468A1 Servomechanism
09/02/1987EP0234134A1 Rotary fluid switching device
09/02/1987EP0234133A1 Rotary fluid energy converter
09/02/1987EP0234006A2 Variable displacement high pressure pump
09/01/1987US4690623 Fluid pumps, fluid motors and devices, which include a coned ring
09/01/1987US4690036 Axial piston pump or motor with multi position swash plate
08/1987
08/20/1987DE3605213A1 Single-acting or double-acting radial piston pump or motor of pumpable substances as well as various explosives in use as an internal combustion engine
08/18/1987US4687426 Cam machine
08/18/1987US4686829 Rotary hydrostatic radial piston machines
08/13/1987WO1987004761A1 Piston pump with swash plate or eccentric
08/12/1987EP0231579A1 Rotary hydraulic pump
08/11/1987US4685381 Pivot portion of a piston shoe in fluid machines
08/11/1987CA1225281A1 Hydraulic wobble pumps
08/06/1987DE3700997A1 Kolbenpumpe mit einer taumelscheibe oder einem exzenter Piston pump with a swash plate or eccentric
08/04/1987US4683765 Variable displacement wobble plate compressor guide rod mounting arrangement
07/1987
07/29/1987EP0204837A4 Swashplate centring device.
07/29/1987EP0059709B1 Torque and high pressure limiting control for variable displacement pumps
07/29/1987EP0059708B1 Horsepower consumption control for variable displacement pumps
07/23/1987EP0204835A4 Hydraulic swashplate unit with unitary bearing retainer.
07/22/1987EP0229118A1 rotary piston pump
07/21/1987US4681514 Radial piston pump having sealing disc
07/21/1987US4681513 Two-stage pump assembly
07/21/1987US4681023 Slide bearing portions on outer faces of piston shoes
07/16/1987DE3600884A1 Heavy-duty rotary leadthrough