| Patents for F01B 3 - Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis (2,319) |
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| 06/30/1998 | US5771694 Crosshead system for stirling engine |
| 06/25/1998 | DE19653164A1 Manufacture of piston for axial piston engine |
| 06/24/1998 | EP0849470A2 Swash-plate compressor capable of insuring sufficient lubrication between a piston and a shoe slidably interposed between the piston and a swash plate |
| 06/23/1998 | US5769172 Power tool |
| 06/17/1998 | CN1184893A Piston type compressors and pistons |
| 06/16/1998 | US5765512 Rotary-linear power device |
| 06/10/1998 | DE19650246A1 High-pressure fuel pump housed on engine wall |
| 06/03/1998 | EP0821760A4 Axial piston machines |
| 05/20/1998 | EP0843074A1 Disc-type rotary engine |
| 05/12/1998 | US5749337 Barrel type internal combustion engine |
| 04/28/1998 | US5743220 Internal combustion engine with central chamber |
| 04/16/1998 | WO1998015734A1 Swash plate type hydraulic rotating machine and method of manufacturing casing for same |
| 04/14/1998 | US5738000 Axial piston machine with guides for the pistons contained therein |
| 04/02/1998 | DE19639732A1 Axial piston engine with integrated differential gear |
| 03/24/1998 | US5730042 Retaining device for axial piston machines |
| 03/19/1998 | WO1998003309A3 Power tool |
| 03/17/1998 | US5728475 Thermal diffusion boride surface treatment of a piston shoe made of a cold workable cobalt based alloy provides wear and corrosion resistance; hardfacing/metals/ |
| 03/05/1998 | WO1998009074A1 Axial piston pump or motor |
| 03/05/1998 | WO1998009061A1 Internal combustion engine with pistons |
| 03/05/1998 | WO1998009057A1 Electric swashplate actuator for stirling engine |
| 03/05/1998 | CA2235809A1 Axial piston pump or motor |
| 02/26/1998 | WO1998007894A1 Method for making parts usable in a fuel environment |
| 02/19/1998 | WO1998006932A1 Improvements in axial piston rotary engines |
| 02/11/1998 | EP0680546B1 Internal combustion rotary piston engine |
| 02/11/1998 | CN1173215A Axial piston rotary engine |
| 02/05/1998 | WO1998004820A1 Internal combustion engine with central chamber |
| 02/05/1998 | WO1998004808A1 A mechanism for the conversion of reciprocating motion into rotary and vice versa |
| 02/04/1998 | EP0821760A1 Axial piston machines |
| 01/29/1998 | WO1998003309A2 Power tool |
| 01/28/1998 | EP0799371A4 Axial piston rotary engine |
| 01/28/1998 | EP0697076A4 Wobble yoke assembly |
| 01/21/1998 | EP0698176B1 A piston and combustion engine |
| 01/20/1998 | US5709176 Split wabbler design for axial-piston engines |
| 01/20/1998 | US5709141 Variable displacement hydraulic system |
| 01/06/1998 | US5704274 Axial piston machine |
| 01/06/1998 | US5704272 Axial piston energy converting device |
| 12/31/1997 | WO1997049898A1 Internal combustion engine with rotating cylinder block |
| 12/29/1997 | EP0814261A2 Compressor piston |
| 12/23/1997 | US5699715 Piston for a reciprocating piston machine |
| 12/16/1997 | US5697459 Directional self-propelled drill |
| 12/11/1997 | DE19721288A1 Valve control for four stroke IC engine |
| 11/26/1997 | EP0808988A1 Hollow piston with a radially welded cover |
| 10/30/1997 | WO1997040257A1 Swashplate pump incorporating a dual location cluster bearing |
| 10/29/1997 | CN1163650A Hydraulic machine with gear-mounted swash-plate |
| 10/29/1997 | CN1163351A Extended movable part for hydraulic pump and screw hydraulic cylinder of motor |
| 10/21/1997 | US5678471 Swashplate pump incorporating a dual location cluster bearing |
| 10/16/1997 | WO1997038225A1 Axial piston machine with internal flushing cycle |
| 10/09/1997 | DE19613609A1 Axialkolbenmaschine mit internem Spülkreislauf Axial piston machine with internal flushing circuit |
| 10/08/1997 | EP0799371A1 Axial piston rotary engine |
| 10/07/1997 | US5673606 Swash plate actuating device for axial piston pumps and motors |
| 08/26/1997 | US5660150 Piston and combustion engine |
| 08/12/1997 | US5655953 Manufacturing method of wave cam for a compressor |
| 08/12/1997 | US5655432 Aluminum-containing plate coated with heat-curable, crosslinkable, elastomeric fluoropolymer also containing lubricant and load-bearing additives, for joining to rotating shafts in automobile air conditioners |
| 08/06/1997 | EP0787243A1 Hydraulic machine with gear-mounted swash-plate |
| 07/31/1997 | WO1997027391A1 Crosshead system for stirling engine |
| 07/09/1997 | EP0649495B1 Rotary power device |
| 07/01/1997 | US5642654 Piston and method of manufacturing the same |
| 06/17/1997 | US5639223 Compressor with cylindrical cam surface |
| 06/17/1997 | US5638778 Opposed piston swash plate engine |
| 06/17/1997 | US5638776 Internal combustion engine |
| 06/12/1997 | WO1997021028A1 Opposed piston swash plate engine |
| 06/10/1997 | US5636561 Volumetric fluid machine equipped with pistons without connecting rods |
| 06/03/1997 | US5634775 Wave cam type compressor |
| 06/03/1997 | US5634526 Hydrostatic transmission center section |
| 06/03/1997 | CA2069612C Internal combustion engines |
| 05/29/1997 | WO1997019254A1 Wobble plate engine |
| 05/20/1997 | US5630353 For use in an air conditioning compressor |
| 05/20/1997 | US5630352 Variable displacement hydrualic piston machine saddle bearing |
| 05/20/1997 | US5630351 Wobble yoke assembly |
| 05/06/1997 | US5626204 Hydrostatic transaxle |
| 04/23/1997 | EP0712461A4 Rotary piston driving mechanism |
| 04/22/1997 | US5622142 Internal combustion engine |
| 04/17/1997 | DE19538197A1 Opposed piston engine with swash plate |
| 04/16/1997 | EP0767864A1 Axial piston engine with a cooling circuit for the cylinders and pistons |
| 03/20/1997 | WO1997010415A1 Piston driven axial cyinder engine |
| 03/18/1997 | US5611522 Hydraulically actuated portable hoist |
| 03/13/1997 | DE19620167C1 Hollow piston for axial piston machine |
| 03/04/1997 | US5606859 Integrated steam motor |
| 02/11/1997 | US5601416 Wave cam type compressor |
| 02/11/1997 | US5601055 Rotary vee engine with supply piston induction |
| 01/14/1997 | US5593000 Hydrostatic transaxle |
| 01/14/1997 | US5592866 For converting longitudinal reciprocating motion to longitudinal motion |
| 01/02/1997 | EP0624229B1 Measuring device for observing the displacement volume setting of axial piston engines |
| 01/02/1997 | DE19522168A1 Axial piston with swashplate, e.g. for motor |
| 01/02/1997 | DE19522012A1 Swashplate drive for axial piston pump |
| 12/12/1996 | DE19620212A1 IC engine of rotary type |
| 11/26/1996 | US5577572 Hydrostatic transmission center section |
| 11/07/1996 | WO1996035041A1 Reciprocating piston engine, especially internal combustion reciprocating piston engine |
| 10/24/1996 | DE19516031C1 Reciprocating piston engine |
| 10/22/1996 | US5566578 Power recieving torque translating output device |
| 10/15/1996 | US5564381 Lightweight engine frame featuring inexpensive energy saving construction |
| 10/15/1996 | US5564372 Split wabbler design for axial-piston engines |
| 09/26/1996 | WO1996029506A1 Axial piston machines |
| 09/18/1996 | EP0708874A4 Fluid motor/pump with scavenged case |
| 09/18/1996 | CN1131237A Variable paddle pump-motor |
| 09/18/1996 | CN1131234A Variable axial plunger pump-motor |
| 09/10/1996 | US5553582 Nutating disc engine |
| 09/10/1996 | US5553378 Method of manufacturing a piston |
| 09/03/1996 | US5551383 Internal combustion engine utilizing pistons |
| 08/06/1996 | US5542494 Hydrostatic transmission and axle assembly |