| Patents for F01B 9 - Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to groups (2,571) |
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| 12/15/2004 | CN1555465A Crankshaft with continuous main journal and corresponding connecting structure |
| 12/14/2004 | US6829978 Piston engine balancing |
| 12/09/2004 | DE10320894A1 Air or fluid pumping system for driving hydraulic vehicles, has propulsion pumps, cock, container, pressure pumps, and mechanically or electrically driven piston pumps combined in piston pump engine to store energy for several applications |
| 12/07/2004 | US6827058 Internal combustion engine having co-axial pistons on a central yoke |
| 12/02/2004 | WO2004104376A1 An engine with drive ring |
| 12/02/2004 | DE10320207A1 Arrangement for forced stabilization of piston axis has translation motion guide, preferably yoke with attachment to piston, ability to accept primary shaft journal; guide ends are attached to piston |
| 12/01/2004 | EP1390610A4 Scotch yoke engine |
| 11/30/2004 | US6823824 Engine having a variable compression ratio |
| 11/30/2004 | CA2143408C Electronically controlled fluid powered motor |
| 11/25/2004 | US20040231620 Engine with drive ring |
| 11/25/2004 | US20040231456 Crankshaft with continuous main journal and corresponding connecting structure |
| 11/24/2004 | CN1548733A Hermetic reciprocating compressor |
| 11/24/2004 | CN1177132C Sector engine |
| 11/23/2004 | US6820586 Engine |
| 11/18/2004 | US20040226523 Internal combustion engines having double cylinder units |
| 11/18/2004 | DE10164813B4 Drehkolbenpumpe Rotary pump |
| 11/17/2004 | EP0990089B1 Engine |
| 11/11/2004 | US20040221716 Hermetic reciprocating compressor |
| 11/10/2004 | EP1272735B1 Radial piston engine |
| 11/09/2004 | CA2263332C Improvements in axial piston rotary engines |
| 10/21/2004 | WO2004090300A2 A power transmission device for a combustion engine |
| 10/21/2004 | US20040206234 Scotch yoke engine |
| 10/21/2004 | DE10315833A1 Piston engine to operate for thermal engines and pumps has working areas and partial pistons per working area run at an angle to each other |
| 10/13/2004 | EP0917617B1 Improvements in axial piston rotary engines |
| 10/07/2004 | WO2004085890A2 Embraced moving cylinder and methods of using same |
| 10/07/2004 | WO2004085813A1 Internal combustion engine with hydraulic transmission and valveless distribution, which is supplied by an oxygen generator |
| 10/05/2004 | US6799542 Engine having piston-cam assembly powertrain |
| 09/30/2004 | DE10311358A1 Piston driven combustion engine having piston chambers formed such that they are connected together at least during part of the cyclic movement of the pistons |
| 09/29/2004 | EP1157210B1 Rotary power unit |
| 09/28/2004 | US6796284 Single revolution cam engine |
| 09/28/2004 | US6796127 One cycle internal combustion engine |
| 09/23/2004 | US20040182333 Embraced moving cylinder and methods of using same |
| 09/23/2004 | DE202004008457U1 Flow-machine e.g. a blower, compressor or liquid pump, includes tube flowed though by gaseous or fluid medium |
| 09/21/2004 | CA2228092C Reciprocating machine |
| 09/15/2004 | EP1456537A1 Motor compressor-motor alternator unit with supplementary compressed air injection operating in mono-and multi-energy |
| 09/15/2004 | EP1169549B1 Mechanical transmission device for engine with variable volume displacement |
| 09/15/2004 | CN1166870C Cross head of crank rod type piston compressor |
| 09/12/2004 | CA2421097A1 Combinational guides for poly inductive machines and synthesis of guide levels |
| 09/08/2004 | EP1455117A1 Stirling engine and biomass combustion plant |
| 09/02/2004 | US20040168669 Variable cylinder capacity engine |
| 09/02/2004 | US20040168569 Dual capacity compressor |
| 09/01/2004 | CN1164860C High-efficient engine |
| 08/26/2004 | US20040163532 Engine |
| 08/26/2004 | DE10300007A1 Four-stroke piston engine operates without piston rods and/or crankshaft and has a motor block with a complete cylinder head assembly each side |
| 08/25/2004 | EP1448895A1 Rotary piston pump |
| 08/12/2004 | WO2004067930A1 Two-cycle internal combustion engine |
| 08/12/2004 | US20040154561 Engine having a variable compression ratio |
| 08/11/2004 | CN1161539C Reciprocating fluid machines |
| 08/10/2004 | US6772717 Reciprocating piston internal combustion engine |
| 07/30/2004 | CA2417138A1 Complementary solutions relating to rectilinear engines |
| 07/28/2004 | EP1425522A4 Crankshaft with continuous main journal and corresponding connecting structure |
| 07/22/2004 | WO2004061270A1 Mechanism for internal combustion piston engines |
| 07/15/2004 | US20040134346 Rotary actuator |
| 07/13/2004 | US6761137 Reciprocating piston internal combustion engine |
| 07/01/2004 | US20040123733 Oscillating actuator |
| 06/30/2004 | EP1105635A4 Dual-cylinder expander engine and combustion method with two expansion strokes per cycle |
| 06/23/2004 | EP1430205A1 Internal combustion engine with compound piston assembly |
| 06/16/2004 | EP1056928A4 Multiple shaft engine |
| 06/16/2004 | EP1045963A4 Orbital internal combustion engine |
| 06/09/2004 | EP1425522A2 Crankshaft with continuous main journal and corresponding connecting structure |
| 06/09/2004 | CN1153004C Rotary cylinder device |
| 06/05/2004 | CA2410848A1 Additional support methods for poly-induction machines |
| 06/01/2004 | US6742482 Two-cycle internal combustion engine |
| 05/26/2004 | EP1421256A1 An improved reciprocating internal combustion engine |
| 05/26/2004 | CA2410789A1 Geometric considerations related to poly inductive set-up of post and retrorotary machines |
| 05/26/2004 | CA2410787A1 Final synthesis of poly inductive machine ii |
| 05/25/2004 | US6739237 Connecting rod apparatus of hermetic compressor |
| 05/21/2004 | WO2004042212A1 Movement transformer for internal combustion engine |
| 05/19/2004 | EP1307642B1 Internal combustion piston engine comprising various compression influences |
| 05/06/2004 | US20040084007 Engine having piston-cam assembly powertrain |
| 05/05/2004 | CA2407284A1 Energy machines with equidistant support |
| 05/04/2004 | US6729273 Piston actuation system of V-type engine with variable compression ratio mechanism |
| 04/28/2004 | EP1412627A1 Internal combustion engine |
| 04/21/2004 | EP1409843A2 Engine |
| 04/15/2004 | WO2004031538A1 Reciprocating piston engine |
| 04/14/2004 | EP1407125A1 Variable cylinder capacity engine |
| 04/06/2004 | US6715464 Fuel injection device for internal combustion engines |
| 04/01/2004 | US20040060429 Pneumatic motor |
| 03/25/2004 | WO2004025082A1 Piston-type internal combustion engine crank mechanism and differential motion |
| 03/25/2004 | US20040055458 Reciprocating compressor with a linear motor |
| 03/19/2004 | CA2401687A1 Final synthesis of poly-induction machines |
| 03/19/2004 | CA2401678A1 Accelerative gear system |
| 03/18/2004 | US20040050347 Piston motion modifiable internal combustion engine |
| 03/16/2004 | US6705202 Rotary engine |
| 03/11/2004 | US20040045522 Internal combustion engine |
| 03/11/2004 | DE20317520U1 IC engine with adjustable stroke has a jointed connecting rod with the joint connected to an adjustable linkage |
| 03/04/2004 | US20040040305 One cycle internal combustion engine |
| 03/03/2004 | EP1015744A4 Variable compression piston assembly |
| 03/02/2004 | CA2115756C Interconnecting rotary and reciprocating motion |
| 02/25/2004 | EP1390610A1 Scotch yoke engine |
| 02/24/2004 | CA2121142C Internal combustion rotary piston engine |
| 02/19/2004 | WO2003008783A8 Variable cylinder capacity engine |
| 02/19/2004 | DE10237043A1 Drive mechanism for the valves of an IC motor has a housing with a rotating crank around the center, acting on inner bodies to move an outer body with a cam contour to act on the valves |
| 02/17/2004 | US6692237 Rotary piston cylinder device with radially extending cylinder chambers intersecting at a rotary axis |
| 02/17/2004 | US6691648 Radial cam driven internal combustion engine |
| 02/12/2004 | DE10235523A1 Piston engine has a crankshaft which is positioned off-center from the centreline of the cylinder/piston axis of movement |
| 02/10/2004 | CA2157991C Crank mechanism system for the transformation of reciprocating linear motion into rotary motion, particularly suitable for reciprocating endothermic engines |
| 02/05/2004 | DE10232237A1 Piston motor without a crankshaft, as a compressor, has opposing pistons given linear movements by racks meshing with cogwheels on a drive shaft and each with a freewheel coupling in a given direction |
| 01/28/2004 | EP1384853A1 Internal combustion engine with low consumption |
| 01/21/2004 | CN1135293C Fluid valve system |