Patents for F01C 1 - Rotary-piston machines or engines (9,235)
02/2008
02/21/2008US20080044305 Sealed-type rotary compressor and refrigerating cycle device
02/21/2008DE102007019958A1 Multiple teeth double rotary piston motor for use as drive in e.g. motor vehicle, has two rotary pistons rotating into one another in enclosed housing, and gearing with very small module attached at pitch circle of each rotary piston
02/21/2008CA2660724A1 A rotary machine having frusto-conical elements
02/20/2008EP1888933A2 Hydraulic hybrid powertrain system
02/20/2008CN201025074Y Hollow outside rotary hydraulic motor
02/20/2008CN201025073Y Leaf pneumatic engine
02/20/2008CN101128647A Unload valve of compressor
02/20/2008CN100370139C Compressor
02/20/2008CN100370112C Lever type internal heat steam engine of rotory piston
02/19/2008US7331775 Pumping device
02/14/2008WO2003102420A9 Gear pump
02/14/2008US20080038136 Long life telescoping gear pumps and motors
02/14/2008US20080038135 Corrosion resistant hydraulic motor
02/14/2008US20080038134 Scroll compressor
02/14/2008US20080038132 Rotary Dry Vacuum Pump
02/14/2008DE202006014930U1 Hydraulische Vorrichtung Hydraulic device
02/13/2008EP1887185A2 Screw machine
02/13/2008EP1887184A2 Rotary positive displacement control system and apparatus
02/12/2008US7329108 Scroll fluid machine
02/12/2008US7329107 Oil supply structure for slider of orbiting vane compressor
02/12/2008US7329106 Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
02/12/2008US7328579 Rotary piston heat engine system
02/12/2008CA2464113C Offset thread screw rotor device
02/07/2008WO2008015821A1 Carbon dioxide engine
02/07/2008WO2008015820A1 Internal pressure apparatus of circulation type and power generating system
02/07/2008WO2008015819A1 Carbon-dioxide engine
02/07/2008WO2008014586A1 Rotary internal combustion engine with a circular rotor
02/07/2008US20080031763 Variable capacity pump/motor
02/07/2008US20080031760 Gerotor pump
02/07/2008US20080031759 Hydraulic rotary motor
02/07/2008US20080031756 Capacity Variable Type Twin Rotary Compressor And Driving Method Thereof And Airconditioner With This and Driving Method Thereof
02/07/2008DE202006014416U1 Rotationskolben-Kraft- oder Arbeitsmaschine A rotary piston motor or machine
02/06/2008CN100366909C Variable capacity rotary compressor
02/06/2008CN100366906C Scroll type fluid machine
01/2008
01/31/2008US20080025862 External toothed wheel pump comprising a relieving pocket
01/31/2008US20080025860 Two-stage rotary compressor
01/31/2008US20080025859 Controlled thickness resilient material lined stator and method of forming
01/31/2008US20080025836 Overspeed Safety Device for a Rotation Motor
01/30/2008CN101115909A A motor driven by pressure medium supplied from an external pressure source
01/30/2008CN101115908A Compressor uninstalling valve
01/30/2008CN101115907A Compressor valve spool lubrication
01/30/2008CN100365300C Method of charging dynamic-pressure bearing device with lubricating fluid, and method of inspecting dynamic-pressure bearing device
01/30/2008CN100365255C Changeable slide sheet circular centre type internal combustion engine
01/29/2008US7322808 Balancing plate—shuttle ball
01/29/2008US7322807 Scroll machine with axially compliant mounting
01/29/2008US7322806 Scroll compressor with externally installed thermostat
01/29/2008US7322271 Rotary radial piston machine
01/24/2008US20080017140 Rotary Radial Piston Machine
01/24/2008DE102005056182B4 Verfahren und Anordnung zum Erzeugen von Energie an einer Antriebswelle (Tornadoturbine) Method and apparatus for generating power to a drive shaft (Tornado turbine)
01/23/2008CN100363633C Rotary piston type double-shaft pneumatic motor
01/17/2008WO2008008163A2 Mechanical ventilation system utilizing bias valve
01/17/2008WO2007120503A9 Variable displacement gerotor pump
01/17/2008US20080014108 Vane cell pump
01/17/2008US20080014107 Pump
01/17/2008CA2656763A1 Mechanical ventilation system utilizing bias valve
01/16/2008EP1878870A2 Screw machine
01/16/2008EP1877655A1 Free swinging piston heat machine
01/16/2008CN101105142A Rhombohedral rotor engine
01/16/2008CN100362210C Fluid machine
01/10/2008US20080008613 Oil supply structure of scroll compressor
01/10/2008US20080008612 Muffler of scroll compressor
01/10/2008US20080008611 Stator Clamping Device For Eccentric Screw Pump
01/09/2008CN201003414Y Pneumatic motor
01/09/2008CN101103177A Surgical pneumatic motor for use with MRI
01/09/2008CN100360774C Internal combustion engine of disrotatory rotor
01/08/2008US7316548 Stator for an eccentric screw pump or an eccentric worm motor operating on the Moineau principle
01/08/2008US7316546 Screw compressor
01/03/2008DE102006038957B3 Rotary piston engine for a range of uses has combustion chamber extending thru compression and expansion stages within main rotor
01/02/2008EP1873398A2 Screw machine
01/02/2008EP1873352A1 Charging device for combustion engines
01/02/2008EP1873351A2 Screw machine
01/02/2008EP1873350A1 Scroll expander
01/02/2008EP1295012B1 Poly-induction energy turbine without back draught
01/01/2008US7314356 Fluid machine
01/01/2008US7314355 Compressor including deviated separation chamber
01/01/2008US7314035 Rotary vane engine and thermodynamic cycle
12/2007
12/27/2007US20070297929 Scroll compressor with back pressure chamber cavity for assisting in start-up
12/27/2007US20070297928 Rotary vane machiine
12/27/2007US20070296296 Motor using working fluid distributed into chambers, which are provided for rotating rotors in opposite relative rotation directions
12/26/2007EP1870560A2 Rotary piston engine
12/26/2007CN200996353Y High-pressure cycloidal hydraulic motor with large torsional moment
12/26/2007CN200996300Y Hydraulic motor of planar valve cycloid
12/26/2007CN101092881A Rotary engine
12/25/2007US7311501 Scroll compressor with bifurcated flow pattern
12/25/2007US7311077 Rotary positive displacement machine with orbiting piston
12/21/2007WO2007146999A2 Rotor with cut-outs
12/21/2007WO2007145475A1 Power generating device for rotary piston engine of vehicle engine
12/21/2007WO2007144748A2 Bi-directional disc-valve motor and improved valve-seating mechanism therefor
12/21/2007WO2007120074A3 Turbo-piston engine and a turbo-piston supercharger
12/20/2007US20070292296 Bi-directional disc-valve motor and improved valve-seating mechanism therefor
12/20/2007US20070292295 Rotor with cut-outs
12/20/2007US20070292294 Scroll compressor
12/20/2007US20070292293 Fluid machine and scroll compressor
12/20/2007DE102005014129B4 Abwärme eines Verbrennungsmotors nutzendes System Waste heat from an internal combustion engine using system
12/19/2007CN100356064C 涡旋式压缩机 Scroll compressor
12/18/2007US7309220 Back pressure apparatus for orbiting vane compressors
12/18/2007US7309219 Scroll type fluid machinery
12/18/2007US7309218 Gear pump
12/18/2007US7309217 Variable capacity rotary compressor
12/18/2007US7308884 Rotary engine
1 ... 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ... 93