| Patents for F01C 3 - Rotary-piston machines or engines with non-parallel axes of movement of co-operating members (679) |
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| 09/13/2007 | US20070209632 Rotary-piston engine and vehicle comprising an engine of this type |
| 09/06/2007 | US20070207049 Twin-plate rotary compressor |
| 08/29/2007 | CN101025090A Oscillating piston engine |
| 08/29/2007 | CN101025089A Oscillating piston engine |
| 08/23/2007 | DE102006009198A1 Swiveling piston engine, e.g. for internal combustion engines, pumps or compressors, has a casing for pistons running jointly in the casing on a hinge pin fixed to the casing |
| 08/23/2007 | DE102006009197A1 Swing piston machine, for a motor or pump or compressor, has a support for piston rotation around an axis and a further support to reverse the swing movement in its reciprocating swing action |
| 08/15/2007 | EP1633956B1 Rotary-piston machine |
| 08/08/2007 | EP1409845B1 Spherical fluid machine with flow control mechanism |
| 08/02/2007 | US20070175435 Rotary compressor and expander, and rotary engine using the same |
| 08/02/2007 | DE10121036B4 Verdichtungsraum für einen Drehkolbenmotor Compression chamber for a rotary piston engine |
| 08/01/2007 | CN1329628C Swivelling piston engine |
| 08/01/2007 | CN1329627C Swivelling piston engine |
| 07/12/2007 | WO2007078206A1 Rotary machine and combustion engine |
| 06/21/2007 | DE102005062529A1 Rotary-piston engine for motor vehicle, has electric motor part that is attached at engine part in direction of rotary axis and comprises rotor that is arranged concentric to rotary axis and is arranged in housing part |
| 05/08/2007 | US7214045 Spherical fluid machine with flow control mechanism |
| 04/11/2007 | EP1366289B1 Minimal contact seal positive displacement device, method and apparatus |
| 04/03/2007 | US7198460 Hydraulic or pneumatic machine with tilting blades |
| 03/29/2007 | WO2007034960A1 Rotary machine |
| 02/07/2007 | EP1749147A2 Orbital engine |
| 02/07/2007 | EP1749145A1 Control of gap loss flow in a gear machine |
| 02/07/2007 | CN1908377A Oscillating piston engine |
| 02/06/2007 | US7171941 Positive displacement rotary device and method of use |
| 01/17/2007 | CN1898464A Improvements in intersecting vane machines |
| 01/16/2007 | US7162993 Intersecting vane machines |
| 01/09/2007 | CA2300812C Rotary piston machine |
| 12/19/2006 | US7150611 Equipment with mutually interacting spiral teeth |
| 12/07/2006 | DE102005026661A1 Rotationskolbenmaschine Rotary piston engine |
| 12/06/2006 | CN1873189A Rotary piston machine |
| 11/29/2006 | CN2841969Y 气缸结构 Cylinder structure |
| 11/23/2006 | US20060263228 Rotating piston machine |
| 11/22/2006 | CN1865664A Rotary-piston engine |
| 10/25/2006 | EP1472435B1 Swiveling piston engine |
| 10/19/2006 | US20060231062 Orbital engine |
| 10/12/2006 | WO2006105687A1 Spherical rotary engine |
| 10/11/2006 | EP1709310A1 Improvements in intersecting vane machines |
| 09/07/2006 | DE10361566B4 Schwenkkolbenmaschine Rotary-piston engine |
| 09/06/2006 | CN1829853A Rotary compressor, expander and rotary piston machine used thereof |
| 08/31/2006 | US20060191499 Oscillating-piston machine |
| 08/17/2006 | DE102005023721B3 Swiveling piston engine e.g. for combustion engines, has housing with two pistons arranged, which move around an axis of rotation and define working chamber, where first piston and or second piston are connected to driver |
| 08/10/2006 | WO2006046971B1 Orbital engine |
| 08/10/2006 | US20060174852 Oscillating-piston machine and oscillating-piston machine arrangement |
| 08/10/2006 | DE102005005768A1 Mechanical energy recovery process for swashplate engine with in it involves conducting pressure, combustion and expansion in separate cavities |
| 07/25/2006 | US7080976 Volumetric rotary machine |
| 06/15/2006 | WO2006046971A3 Orbital engine |
| 06/13/2006 | US7059294 Orbital engine |
| 06/07/2006 | EP1664541A1 Rotating piston machine |
| 05/04/2006 | WO2006046971A2 Orbital engine |
| 05/04/2006 | CA2566148A1 Orbital engine |
| 04/27/2006 | WO2006043024A1 Rotary device |
| 04/27/2006 | WO2006042423A1 Toroidal engine with variable displacement volume |
| 04/20/2006 | US20060083618 Hydraulic or pneumatic machine with tilting blades |
| 04/20/2006 | DE102005010775B3 Rotatable reciprocating engine for use as compressor, has two pistons revolving in housing, in which centrifugal forces arising due to revolution of pistons act in pivoting direction of pistons during revolution of pistons |
| 04/20/2006 | DE102004050716A1 Rotary combustion engine to provide power has at least two co-axially a rotating discs in housing, forming at least one combustion chamber |
| 03/15/2006 | EP1633956A1 Rotary-piston machine |
| 03/02/2006 | DE4405311B4 Brennkraftmaschine mit Massenausgleich Internal combustion engine with balancer |
| 02/28/2006 | US7004730 Integral shaft for use in mud pumps |
| 02/08/2006 | CN1240930C Equipment with mutually interacting spiral teeth |
| 01/25/2006 | CN1238629C Volumetric rotary machine |
| 12/29/2005 | DE102004026048A1 Spaltverluststromsteuerung Gap leakage current control |
| 12/15/2005 | WO2005119067A1 Twin-plate rotary compressor |
| 12/08/2005 | WO2005116403A1 Control of gap loss flow in a gear machine |
| 12/08/2005 | US20050271523 Swash-plate variable volume chamber-type fluid machine |
| 12/01/2005 | US20050263129 Orbital engine |
| 10/19/2005 | EP1585887A1 Hydraulic or pneumatic machine with tilting blades |
| 09/21/2005 | EP1366289A4 Minimal contact seal positive displacement device method and apparatus |
| 09/15/2005 | US20050199189 Val rotary engine |
| 09/13/2005 | US6941900 VAL rotary engine |
| 08/11/2005 | US20050175493 Rotary piston machines comprising a displaceable inner housing |
| 08/04/2005 | US20050166889 Positive displacement rotary device and method of use |
| 08/02/2005 | US6923055 Positive displacement flow meter method and apparatus |
| 07/30/2005 | CA2496051A1 Positive displacement rotary device and method of use |
| 07/14/2005 | WO2005064138A1 Improvements in intersecting vane machines |
| 06/23/2005 | US20050133000 Intersecting vane machines |
| 06/23/2005 | DE10354621A1 Rotary pump, compressor, heat engine or piston engine has housing forming a toroidal pump chamber |
| 06/22/2005 | EP1544466A1 Swash-plate variable volume chamber-type fluid machine |
| 05/18/2005 | CN1617975A Swivelling piston engine |
| 05/04/2005 | EP1527256A1 Rotary piston machines comprising a displaceable inner housing |
| 05/03/2005 | US6887057 Minimal contact seal positive displacement device method and apparatus |
| 05/03/2005 | CA2300420C Rotary engine and method for determining engagement surface contours therefor |
| 04/28/2005 | WO2005038198A1 A hydraulically operated power unit |
| 03/17/2005 | WO2005024237A1 Rotating piston machine |
| 03/17/2005 | CA2536279A1 Rotary piston machine |
| 03/03/2005 | US20050045841 Transverse disc motor |
| 02/24/2005 | WO2005017319A1 Annular rotating piston machine |
| 01/13/2005 | US20050008515 Oscillating piston machine |
| 12/30/2004 | US20040261757 Variable-volume rotary kinematic machine |
| 12/29/2004 | WO2004113683A1 Rotary-piston machine |
| 12/16/2004 | US20040250617 Positive displacement flow meter method and apparatus |
| 11/03/2004 | EP1472435A1 Swiveling piston engine |
| 10/14/2004 | DE10256729A9 Ringmotor Insert Engine |
| 08/05/2004 | DE19521528B4 Rotationskolben-Brennkraftmaschine A rotary piston internal combustion engine |
| 08/05/2004 | DE10303104A1 Combustion engine, has pistons that move in a circular path within a round cylinder barrel such that during a combustion operation in the cylinder, the torque generated by the pistons is increased |
| 07/27/2004 | CA2189212C Fluid compression/expansion machine with fluted main rotor having ruled surface root and method of manufacture |
| 07/14/2004 | EP1272738B1 Rotary piston engine |
| 06/24/2004 | WO2004053297A1 Hydraulic or pneumatic machine with tilting blades |
| 06/23/2004 | EP1250515A4 Balanced rotors positive displacement engine and pump method and apparatus |
| 06/17/2004 | WO2004051088A1 Swash-plate variable volume chamber-type fluid machine |
| 06/17/2004 | DE10257315A1 Vortex motor has hollow ring with a rotating piston segment turns about a hollow liquid-cooled crankshaft or axle |
| 06/09/2004 | DE10256729A1 Ring shaped combustion engine has two hollow rings and a connecting space with segment shaped pistons on a central shaft rotating in the same direction |
| 05/26/2004 | EP1222365A4 A variable volume device and system therefor |