Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 2 - Rotary-piston machines or pumps
Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
10/2005
10/05/2005CN1676934A Scroll type hydraulic machine
09/2005
09/29/2005US20050214155 Pump and ink jet printer mounting the pump
09/29/2005US20050214153 Rotary vane pump
09/29/2005US20050214152 Rotary vane pump
09/29/2005US20050214150 Pump and ink jet printer mounting the pump
09/29/2005US20050214149 Displacement pump with variable volume flow
09/29/2005US20050214148 Fluid machine
09/29/2005DE19549788B4 Hydraulic motor for excavator, etc. - has connector part with journal, screwed into shaft end
09/29/2005DE10360172B4 Hydraulischer Motor Hydraulic motor
09/29/2005DE102004012122A1 Förderaggregat Delivery unit
09/29/2005DE102004008892A1 Förderaggregat Delivery unit
09/28/2005EP1580432A2 Single vane pump and ink jet printer
09/28/2005EP1580431A1 Electric internal gear pump
09/28/2005EP1579117A1 Variable-delivery rotary vane pump
09/28/2005CN1675465A Cam ring bearing for fuel delivery system
09/28/2005CN1675457A 改进的燃料输送系统 Improved fuel delivery system
09/28/2005CN1673541A Pump and ink jet printer mounting the pump
09/28/2005CN1673540A Pump and ink jet printer mounting the pump
09/27/2005US6948915 Oil free screw compressor
09/22/2005US20050207925 Variable capacity rotary compressor
09/22/2005US20050207916 Sliding vane pump
09/22/2005US20050204738 Oil pump
09/22/2005DE202005005348U1 System for converting hydraulic pressure into rotational torque has a spiral groove duct in a stator and with a floating piston attached to a rotor
09/22/2005DE102005007082A1 Internal-gear pump for internal combustion engine has balance groove which induces discharge pressure, provided at internal peripheral surface of discharge opening side of cylinder
09/22/2005DE102004009840A1 Vane arrangement for vane cell pump has for after-vane passages defined by vanes in rotor side radial slots in slot base widened connecting cross sections to pressure channels in side walls
09/22/2005DE102004009838A1 Fluid vane pump has rotor mounted onto shaft by toothed joint with centre aligning head flank on tooth
09/21/2005EP1577556A2 Vane pump
09/21/2005EP1576290A1 Gear-type machine comprising lateral axial plates
09/21/2005CN1670378A Double end compound tooth type labyrinth screw pump
09/21/2005CN1670377A Variable capacity rotary compressor
09/21/2005CN1219977C Variable displacement pump
09/20/2005US6944935 Method of forming an optimized fiber reinforced liner on a rotor with a motor
09/17/2005CA2501103A1 Displacement pump with variable volume flow
09/15/2005WO2005085642A1 Modular volumetric compressor
09/15/2005DE102004009474A1 Electric motor driven oil pump for a hybrid motor vehicle gear has gap in sealing for cooling a winding in the motor
09/14/2005EP1573121A1 Method and device for treating fibrous material
09/14/2005CN2725577Y Elliptical compression fluid transfer machinery
09/14/2005CN2725576Y Special high shear intensified pump for water coal slurry
09/14/2005CN1668851A Rotary screw machine and method of transforming a motion in such a machine
09/14/2005CN1668850A Rotary screw machine and method of transforming a motion in such a machine
09/09/2005WO2005081913A2 Improvements in spherical fluid machines
09/09/2005WO2002082098A3 Speed sensor flange assemblies
09/09/2005CA2557051A1 Improvements in spherical fluid machines
09/08/2005US20050196301 Gear pump and liquid injection apparatus
09/08/2005DE102005006810A1 Duale Ölversorgungspumpe Dual oil supply pump
09/08/2005DE102005004373A1 Verbesserter Lade-/Nebenkreis zum Verringern von Leistungsverlusten in hydrostatischen Systemen Improved loading / secondary circuit to reduce power losses in hydrostatic systems
09/07/2005EP1570180A1 Screw pump
09/07/2005EP1570179A2 Pump
09/07/2005CN2723721Y Two-way large torque motor and pump
09/07/2005CN1666010A Internal gear machine with variable capacity
09/07/2005CN1218137C Regulated pump
09/01/2005WO2005080755A1 Improved gerotor pumps
09/01/2005WO2005079302A2 Low cost gear fuel pump
09/01/2005US20050191189 Oil seal arrangement
09/01/2005US20050191188 Stator tube removal and installation device
09/01/2005US20050191186 Aeronautical generator
09/01/2005DE102004007347A1 Pressure control valve for oil pump especially for IC engine has a spring loaded control piston with a central support section with sliding fit and with hollowed out ends
08/2005
08/31/2005EP1568886A1 Supply unit with overpressure relief valve
08/31/2005EP1365906B1 Screw pump and multi-screw extruder comprising a screw pump of this type
08/31/2005EP1303701B1 Pump
08/31/2005CN2721914Y Corrosion-proof rotor of Roots pump
08/31/2005CN2721376Y Plastic melt metering gear pump
08/31/2005CN1661250A Lubricating-fluid infusion apparatus
08/31/2005CN1661249A Fluid dispensation method
08/31/2005CN1661248A Method of charging dynamic-pressure bearing device with lubricating fluid, and method of inspecting dynamic-pressure bearing device
08/31/2005CN1661237A Electric pump
08/31/2005CN1217097C Fuel-injection pump with flow-control fuel path used for fuel lubrication
08/30/2005US6935854 Gas compressor
08/30/2005US6935853 Variable capacity rotary compressor
08/30/2005US6935851 External gear pump with pressure fluid pre-loading
08/30/2005CA2282231C Modular downhole multiphase pump
08/25/2005WO2005078285A1 Oil pump and automatic speed changer with the same
08/25/2005WO2005078279A1 Motor-driven pump unit
08/25/2005US20050186101 Method of Charging Dynamic-Pressure Bearing Device with Lubricating Fluid, and Method of Inspecting Dynamic-Pressure Bearing Device
08/25/2005US20050186100 Spherical fluid machines
08/25/2005US20050186089 Electric pump
08/25/2005US20050185042 Multi-head gear pump and wet-type image forming apparatus employing the same
08/25/2005US20050184085 Fluid Dispensation Method
08/25/2005US20050183906 Lubricating-Fluid Infusion Apparatus
08/25/2005DE102004038686B3 Spiral pump e.g. for integrated drive, has rotor which runs in it and driving motor connected to rotor such as fixed winding, and runners surrounding rotor and covered by housing
08/25/2005DE102004005468A1 Fluid control for rotary piston machines and rotary piston compressors allows rotary piston machines to be used as flow-optimized compressors and as rotary piston pumps for conveying fluid
08/25/2005DE102004005430A1 Ölpumpe für Kraftfahrzeug-Automatgetriebe Oil pump for motor vehicle automatic transmission
08/24/2005EP1566545A2 Electric internal gear pump
08/24/2005CN2720161Y Lobe pump plastic-steel composite pump body
08/24/2005CN2720156Y Hydraulic driven oil-production screw pump
08/24/2005CN1659379A Four-in pump
08/24/2005CN1658086A Multi-head gear pump and wet-type image forming apparatus employing the same
08/24/2005CN1657791A Charge/auxiliary circuit for reducing power losses in hydrostatic systems
08/23/2005US6932587 Gerotor motor with valve in rotor
08/18/2005WO2005075830A1 Vane pump with movable sleeve
08/18/2005US20050180873 Hydraulic machine
08/18/2005US20050180870 Dual oil supply pump
08/18/2005US20050180859 Four-in pump
08/18/2005US20050178117 Charge/auxiliary circuit for reducing power losses in hydrostatic systems
08/18/2005DE102004005403A1 Drive shaft connection for eccentric worm pump has disk on end of drive shaft with four small diameter pegs engaging in large diameter holes in disk on end of worm
08/17/2005CN2718271Y Bush combined screw pump
08/17/2005CN2718267Y Cement paste gear conveyor pump
08/17/2005CN2717584Y Screw pump multi-hole one-time boring forming apparatus
08/17/2005CN1656315A Rotor machine
08/17/2005CN1654823A Progressive cavity pump
1 ... 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 ... 143