| Patents for F01C 11 - Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type (1,299) |
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| 12/08/2004 | CN1553046A Composite rotor engine |
| 12/01/2004 | CN1178001C Rotary fluid machinery, vane fluid machinery, and waste heat recovery device of internal combustion engine |
| 11/25/2004 | DE102004018860A1 Fluidmaschine Fluid machine |
| 11/04/2004 | US20040219047 Scroll type fluid machinery |
| 11/04/2004 | DE102004015901A1 Lader mit mehreren Rückströmungskanälen zur Geräuschkontrolle Loader with multiple back-flow channels for noise control |
| 11/03/2004 | EP1472434A2 Gerotor apparatus for a quasi-isothermal brayton cycle engine |
| 10/28/2004 | US20040211180 Fluid machine |
| 10/26/2004 | US6808836 Air supply system for fuel cell |
| 10/21/2004 | WO2004090289A1 Rotary engine for motor vehicles with very low consumption and pollution rate |
| 10/21/2004 | DE102004023370A1 Rotationskolbenmotor Rotary piston engine |
| 10/14/2004 | US20040200217 Bladed heat transfer stator elements for a stirling rotary engine |
| 10/14/2004 | DE10256729A9 Ringmotor Insert Engine |
| 10/13/2004 | EP1466078A2 Rotary positive displacement machine |
| 10/07/2004 | WO2004042197A9 Multiple scroll machines linked by a plurality of anti-rotation units |
| 10/07/2004 | US20040194766 Supercharger with multiple backflow ports for noise control |
| 10/06/2004 | EP1339952B1 Rotary piston internal combustion engine |
| 09/30/2004 | US20040187506 Waste heat utilizing system |
| 09/29/2004 | EP1461518A1 Two-process rotary internal combustion engine |
| 09/29/2004 | CN1532082A Waste heat utilizing system |
| 09/23/2004 | US20040182357 Rotary machine |
| 09/23/2004 | US20040182356 Rotary internal combustion engine |
| 09/23/2004 | DE202004008457U1 Flow-machine e.g. a blower, compressor or liquid pump, includes tube flowed though by gaseous or fluid medium |
| 09/16/2004 | US20040179957 Novel gas booster system |
| 09/07/2004 | US6786128 Fluid motor |
| 09/02/2004 | DE102004012962A1 Doppelwirkender Kreiskolbenmotor Double-acting rotary engine |
| 09/02/2004 | CA2516717A1 Integral cooling system for rotary engine |
| 08/25/2004 | EP1448873A1 Rotary volumetric machine |
| 08/19/2004 | US20040159089 Combined input and output system for a combustion engine and turbine power plant |
| 08/12/2004 | WO2004068001A1 Fluid drive mechanism with prejudicial leaves without centrifugal force |
| 07/29/2004 | WO2004063532A1 External combustion rotary piston engine |
| 07/29/2004 | CA2552819A1 External combustion rotary piston engine |
| 07/27/2004 | US6766783 Rotary internal combustion engine |
| 07/10/2004 | CA2417418A1 Electric-ignition engine with rotors. |
| 07/08/2004 | WO2004031528A3 Drilling rig having a compact compressor/pump assembly |
| 07/07/2004 | CN1510252A Rotary fluid machinery, blade fluid machinery and waste heat recovering device of IC engine |
| 07/07/2004 | CN1510250A Rotary fluid machinery, blade fluid machinery and waste heat recovering device of IC engine |
| 06/24/2004 | WO2004053298A1 Volume expander and fluid machine |
| 06/16/2004 | EP1428980A1 Rotary fluid machine |
| 06/16/2004 | EP1428977A1 Rotary fluid machine |
| 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 |
| 05/27/2004 | DE10252684A1 2-stroke rotary cylinder IC engine to convert pressure into rotary movement has two working chambers, with all engine functions occurring completely and separate from each other within a 360o rotation of the drive shaft |
| 05/26/2004 | EP1422378A1 Gerotor compressor and gerotor expander |
| 05/26/2004 | EP1421282A1 Fluid displacement pump with backpressure stop |
| 05/21/2004 | WO2004042197A1 Multiple scroll machines linked by a plurality of anti-rotation units |
| 05/06/2004 | US20040086407 Scroll type of fluid machinery |
| 05/06/2004 | EP1416121A1 Anti cavitation system for a gerotor-type two-speed motor |
| 04/27/2004 | US6725644 Combined input and output system for an internal combustion engine and turbine power plant |
| 04/22/2004 | US20040074256 Expander |
| 04/21/2004 | EP1411309A2 Expander |
| 04/21/2004 | EP1409860A2 Improved rotary machine |
| 04/20/2004 | CA2129756C Rotary fluid displacement apparatus |
| 04/15/2004 | WO2004031528A2 Drilling rig having a compact compressor/pump assembly |
| 04/08/2004 | WO2004029414A1 Generator arrangement and use of a generator arrangement |
| 04/08/2004 | CA2497331A1 Generator arrangement and use of a generator arrangement |
| 04/01/2004 | US20040060717 Drilling rig having a compact compressor/pump assembly |
| 03/24/2004 | EP1399658A1 A rotary engine |
| 03/24/2004 | EP1399646A1 Combustion engine |
| 03/18/2004 | WO2004022919A1 Rotary vane engine and thermodynamic cycle |
| 03/18/2004 | US20040050246 Rotary fluid machine |
| 03/18/2004 | DE10241807A1 Electrical current generation unit e.g. for laptop computer, musical instrument or toy, uses rotary piston machine for driving current generator |
| 03/02/2004 | US6698395 Hybrid rotary engine |
| 02/19/2004 | US20040031384 Rotary fluid machinery |
| 02/12/2004 | DE10340670A1 Rotary piston engine for automotive, agricultural, marine industries has a housing with a supplementary piston |
| 02/11/2004 | EP1075595B1 Improvements relating to rotary piston machines |
| 02/10/2004 | US6688865 Vane type fluid machinery having a deformable seal portion on the vane |
| 02/10/2004 | US6688857 Compressor and dehydrator system |
| 02/05/2004 | US20040020206 Heat energy utilization system |
| 01/27/2004 | US6681738 Rotary type fluid machine, vane type fluid machine, and waste heat recovering device for internal combustion engine |
| 01/21/2004 | CN1469092A Oil-free screw type expansion-compressor |
| 01/13/2004 | US6676385 Compressor assembly |
| 01/13/2004 | US6675765 Rotary type fluid machine, vane type fluid machine, and waste heat recovering device for internal combustion engine |
| 01/06/2004 | US6672274 Rotary piston internal combustion engine |
| 01/06/2004 | US6672065 Multiple stage compressor with rotors using rollers |
| 01/02/2004 | EP1376030A1 Refrigeration cycle with a main compressor and a screw expander-compressor |
| 12/31/2003 | WO2003067030A3 Gerotor apparatus for a quasi-isothermal brayton cycle engine |
| 12/30/2003 | US6668786 Rotary type fluid machine, vane type fluid machine, and waste heat recovering device for internal combustion engine |
| 12/24/2003 | WO2002063151A8 Two-dimensional positive rotary displacement engine |
| 12/16/2003 | US6662774 Rotary internal combustion engine |
| 12/11/2003 | WO2003102377A1 Rotary piston internal combustion engine |
| 12/11/2003 | US20030228237 Gerotor apparatus for a quasi-isothermal Brayton Cycle engine |
| 12/11/2003 | US20030226360 Heat energy conversion apparatus |
| 11/27/2003 | WO2003098004A1 Rotary combustion engine |
| 11/27/2003 | WO2003062604A3 Rotary positive displacement machine |
| 11/20/2003 | WO2003095800A1 Rotary piston internal combustion engine with an improved combustion process |
| 11/20/2003 | WO2003095799A1 Non-eccentric devices |
| 11/20/2003 | US20030215346 Non-eccentric devices |
| 11/20/2003 | US20030215345 Gerotor apparatus for a quasi-isothermal brayton cycle engine |
| 11/13/2003 | WO2003093650A1 Oscillating-rotor engine |
| 11/13/2003 | WO2003093649A1 Screw compressor-expander machine |
| 11/13/2003 | US20030209221 Rotary positive displacement device |
| 11/11/2003 | US6644045 Oil free screw expander-compressor |
| 11/06/2003 | WO2003091544A1 Rotary internal combustion engine |
| 10/29/2003 | CN1452696A Rotary fluid machinery |
| 10/29/2003 | CN1452694A Rotary fluid machinery |
| 10/28/2003 | US6637383 Pivoting piston rotary power device |
| 10/22/2003 | EP1101024B1 Gerotor compressor and gerotor expander |
| 10/14/2003 | US6632145 Fluid displacement pump with backpressure stop |
| 09/18/2003 | WO2003076779A1 Gas turbine engine system |
| 09/18/2003 | CA2479235A1 Gas turbine engine system |
| 09/16/2003 | US6619243 Pivoting piston rotary power device |