Patents
Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723)
08/1997
08/06/1997EP0712464B1 Piston pump
08/05/1997US5653584 Motor/pump mounting arrangement for a vertically mounting high pressure water pump
07/1997
07/31/1997DE19702852A1 Wear-resistant roller bearing, especially for axial piston pump
07/31/1997DE19602770A1 Pressure medium machine, especially hydraulic motor or pump
07/30/1997CN1155923A 活塞泵 Piston pump
07/29/1997US5651302 Actuator pump
07/29/1997US5651301 Hydrostatic piston machines
07/23/1997EP0785359A1 Weight optimisation for a piston shoe
07/23/1997EP0784764A1 Automatic gearbox with a positive-displacement pump
07/22/1997US5649812 For a pump and an electric motor assembly
07/15/1997US5647729 Radial piston pump
07/15/1997US5647266 Hold-down mechanism for hydraulic pump
07/08/1997US5645406 Transmission assembly with positive-displacement pump with suction throttle driven by a hydrodynamic converter
07/01/1997US5642988 Radial piston pump
07/01/1997US5642654 Piston and method of manufacturing the same
06/1997
06/26/1997WO1997022805A1 Low noise hydraulic pump with check valve timing device
06/25/1997EP0780573A2 High pressure water pump system
06/17/1997US5639223 Compressor with cylindrical cam surface
06/11/1997EP0778416A2 Piston retaining mechanism for a hydraulic pump
06/11/1997CN1151481A Wobble plate pump
06/10/1997US5636561 Volumetric fluid machine equipped with pistons without connecting rods
06/04/1997EP0776986A1 Swash plate of swash-plate compressor and combination of swash plate with shoes
06/04/1997CN2255504Y High-power whole-oil-less lubricating compressor
06/03/1997US5634852 Uniform speed joint and axial piston pump using the joint
06/03/1997US5634777 Radial piston fluid machine and/or adjustable rotor
06/03/1997US5634776 Low noise hydraulic pump with check valve timing device
06/03/1997US5634526 Hydrostatic transmission center section
05/1997
05/28/1997DE19543780A1 Radial piston pump for oil
05/27/1997US5632191 Piston roller alignment configuration for a radial piston mechanism
05/21/1997EP0774073A1 Hydraulic axial piston machine with an inclined plate
05/21/1997EP0774072A1 Reciprocating pump
05/20/1997US5630708 Radial piston pump for low-viscosity fuel
05/20/1997US5630707 Variable displacement mechanism for swash plate type hydraulic pump and motor
05/20/1997US5630352 Variable displacement hydrualic piston machine saddle bearing
05/14/1997EP0772740A1 Piston pump
05/13/1997US5628625 High pressure fluid pump for use in vehicular braking system having anti-lock and traction assist feature
05/13/1997US5628229 Method and apparatus for indicating pump efficiency
05/13/1997US5628188 Torque control of hydrostatic machines via the pivot angle or the eccentricity of said machines
05/07/1997EP0771936A1 Hydrostatic pump and bearing-clocking mechanism therefor
05/06/1997US5626466 Piston pump
05/06/1997US5626465 Hydraulic piston machines
05/06/1997US5626464 Wobble plate pump
05/06/1997US5626204 Hydrostatic transaxle
05/06/1997US5626015 Delivery control device for hydraulic pumps and hydraulic systems with such devices
05/02/1997EP0770182A1 Control plate of a hydraulic machine
05/02/1997EP0770181A1 Hydraulic pumping device
05/02/1997EP0770180A1 Piston/slide shoe arrangement
05/02/1997EP0770179A1 A piston with a slide shoe for a hydraulic piston engine
05/02/1997EP0770178A1 A piston with a slide shoe and method of manufacturing same
04/1997
04/30/1997DE19618539A1 Swashplate-type plunger pump
04/30/1997DE19618524A1 High speed swash plate pump having axial pistons in rotating, sliding cylinder block with numerous sliding surfaces
04/30/1997DE19539442A1 Control plate for piston-type hydrostatic machine
04/24/1997WO1997014888A1 Axial piston machine with transverse and rotary adjustment of the pivoting cradle
04/24/1997DE19643134A1 Fuel injection pump for internal combustion engine
04/24/1997DE19539370A1 Hydrostatic reciprocating machine of staggered disc construction
04/22/1997US5622482 Pump using shape memory alloys
04/22/1997US5622097 Hydraulic piston machine
04/22/1997US5622052 Double-flow hydrostatic radial piston engine with axial flow, thrust compensation, and shaft bearing
04/17/1997DE19538447A1 Hydrostatic engine, especially axial piston engine working as hydro-pump or hydro motor
04/16/1997EP0767864A1 Axial piston engine with a cooling circuit for the cylinders and pistons
04/16/1997EP0679228B1 Pressure-applying arrangement in a hydraulic axial piston machine
04/16/1997EP0679227B1 Hydraulic piston machine
04/16/1997CN2252250Y Coating material hydraulic pump
04/15/1997US5620311 Piston pump having a pump casing to which a pump motor is attached
04/10/1997WO1997013065A1 Twin pump with a charging pump
04/09/1997EP0766788A1 Adjustable hydrostatic radial-piston motor
04/02/1997CN1146793A Variable displacement piston machine for reducing noise and vibration by reducing pulsation of discharge fluid
03/1997
03/27/1997DE19639198A1 Electrical connector board protected from hydraulic fluid by sealing element e.g. for motor vehicle ABS electrical system
03/26/1997EP0764059A1 High-pressure cleaning appliance with safety insulation
03/25/1997US5613838 Rotary piston fluid handler
03/20/1997WO1997010434A1 Valve, in particular a non-return valve for use as the outlet valve of a reciprocating pump
03/19/1997EP0763657A1 Axial piston machine having sliding shoes with reduced stress
03/19/1997CN1145658A Adjustable hydrostatic radial-piston motor
03/19/1997CN1145657A Reciprocating pump
03/13/1997WO1997009532A1 Hydraulic radial piston machine
03/13/1997DE19620167C1 Hollow piston for axial piston machine
03/13/1997DE19538835C1 Axial-piston machine with adjustable swashplate
03/13/1997DE19533741A1 Ventil, insbesondere Rückschlagventil als Auslaßventil einer Kolbenpumpe Valve, check valve, in particular as an outlet of a piston pump
03/12/1997EP0761967A1 Hydraulic housing block with piston pump
03/12/1997CN1034238C Unitary axial variable hydraulic housing
03/11/1997US5609182 Valve
03/06/1997WO1997008454A1 Fuel injection pump
03/06/1997DE19531811A1 Kraftstoffeinspritzpumpe Fuel injection pump
03/05/1997EP0679225B1 Hydraulic piston machine
03/05/1997EP0621836B1 Immersion-proof abs/drive slip control pumping assembly with check valve
03/05/1997CN1144304A Sloping cam-plate synchronously-rotating plunger pump
03/04/1997CA2036212C Wobble plate type refrigerant compressor having a ball-and-socket joint lubricating mechanism
02/1997
02/20/1997DE19536997C1 Doppelpumpe mit Ladepumpe Double pump with charge pump
02/19/1997CN2247728Y Double swashplate two-way flow axial plunger pump
02/18/1997US5603609 Variable delivery swash plate pump having a piston located spill port
02/13/1997WO1997005388A1 Pistom pump
02/13/1997WO1997005382A1 Fluid pumping apparatus
02/13/1997WO1997005381A1 Pump
02/11/1997US5601417 Hydraulic pump with ball bearing pistons
02/11/1997US5601009 Hydraulic machine and method for assembling a piston and slider shoe unit
02/06/1997WO1997004233A1 Axial piston micropump
02/06/1997DE19532713C1 Hydraulische Radialkolbenmaschine Hydraulic radial piston engine
02/04/1997US5598761 Hydraulic axial piston machine with control face located in rear flange and friction-reducing plastic insert in rear flange
01/1997
01/30/1997DE19527402A1 Pumpe Pump
01/30/1997DE19527401A1 Kolbenpumpe Piston pump
1 ... 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 ... 108