| Patents for F01C 1 - Rotary-piston machines or engines (9,235) |
|---|
| 11/07/1990 | CN1046784A Internal combustion engine with contact-arc rotor |
| 11/06/1990 | US4968234 Rotary piston machine with sealing elements |
| 11/06/1990 | US4967707 Rotary engine |
| 10/30/1990 | CA1275641C Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an economizer inlet port |
| 10/17/1990 | CN1046208A Gate type hydraulic pump (motor) |
| 10/16/1990 | US4963079 Screw fluid machine with high efficiency bore shape |
| 10/10/1990 | CN1046018A Wind cooling rotor type internal combustion engine |
| 10/02/1990 | US4960370 Internal axis rotary piston machine |
| 09/27/1990 | DE3909299A1 Pocket disc engine as internal combustion engine |
| 09/27/1990 | DE3909259A1 Hydraulic motor with axial working connections |
| 09/26/1990 | EP0323979A4 Rotary machine |
| 09/25/1990 | CA1274476A1 Rotary internal combustion engine |
| 09/19/1990 | EP0316346B1 Rotating piston machine |
| 09/19/1990 | CN1045440A Full-engaged fluid machinery |
| 09/11/1990 | US4956058 Aluminum or aluminum alloy scrolls, milling, electrolysis or polishing, aluminite wear resistant surfaces |
| 09/06/1990 | DE3905882A1 Rotary piston engine |
| 09/05/1990 | CN1045151A Wobble-wheel fluid engine |
| 09/05/1990 | CN1045150A Engage-locked power machine |
| 09/05/1990 | CN1045149A Ball-type rotary pump or machine |
| 09/04/1990 | US4954057 Scroll compressor with lubricated flat driving surface |
| 09/04/1990 | US4954056 Scroll machine with pin coupling |
| 08/29/1990 | CN1044973A Combined piston with olive-shaped rotor |
| 08/28/1990 | US4952125 Nonlubricated screw fluid machine |
| 08/28/1990 | CA1273326A1 Ball retainer for rotation preventing devices in scroll-type fluid displacement machines |
| 08/28/1990 | CA1273300A1 Distribution system for scroll machine |
| 08/23/1990 | DE3905081A1 Rotary piston engine |
| 08/22/1990 | EP0211826B1 Screw compressor |
| 08/22/1990 | CN1009293B Rotational piston type internal-combustion engine with separating strokes |
| 08/21/1990 | US4950138 Spiral displacement machine with flexible eccentric guide arrangement |
| 08/21/1990 | US4949688 Rotary internal combustion engine |
| 08/16/1990 | EP0381790A1 Method and device for the compression of a gaseous medium |
| 08/14/1990 | US4948352 Rotor unit with peripheral projections and clearances for centrifugal deflection |
| 08/09/1990 | WO1990008879A1 Rotary piston internal combustion engine |
| 08/09/1990 | DE3903197A1 Rotationskolbenverbrennungskraftmaschine Rotary internal combustion piston engine |
| 08/09/1990 | DE3903067A1 Rotor for positive displacement machines |
| 08/08/1990 | CN1044516A Rotary engine with rolling pistons |
| 08/04/1990 | WO1990008902A1 Arrangement of pumps or similar machines |
| 08/04/1990 | CA2045558A1 Arrangement of pumps or similar machines |
| 08/01/1990 | EP0379832A1 Internal combustion engine |
| 07/26/1990 | WO1990008261A1 Rotor pair for a high-pressure screw-type compressor |
| 07/24/1990 | US4943214 Two-shaft type rotary machine having a tip circle diameter to shaft diameter within a certain range |
| 07/24/1990 | US4943213 Internal axis rotary piston machine with meshing engagement between outer and inner rotors |
| 07/18/1990 | EP0377617A1 Gearwheel motor. |
| 07/17/1990 | CA1271732A1 Scroll-type machine with rotation controlling means and specific wrap shape |
| 07/12/1990 | WO1990007631A1 Rotary suction and discharge apparatus |
| 07/04/1990 | CN1008645B Vane type pneumatic engine |
| 07/03/1990 | US4938672 Screw rotor lobe profile for simplified screw rotor machine capacity control |
| 07/03/1990 | US4938670 Rotary fluid machine |
| 07/03/1990 | US4938668 Rotating piston machine |
| 06/28/1990 | DE3843053A1 Internal combustion engine |
| 06/21/1990 | DE3841937A1 Rotary engine |
| 06/20/1990 | CN1008467B Vortex tube type fluid devices |
| 06/19/1990 | USRE33236 Bearing device of sealed type scroll compressor |
| 06/19/1990 | US4934911 Hydraulic rotary piston engine having inproved commutator valve |
| 06/19/1990 | US4934910 Scroll-type fluid apparatus with radially compliant driving means |
| 06/19/1990 | US4934325 Rotary internal combustion engine |
| 06/07/1990 | DE3923906A1 Brennkraftmaschine Internal combustion engine |
| 06/05/1990 | CA1269966A1 Rotary machine having screw rotor assembly |
| 05/31/1990 | DE3840206A1 Continuous rotational drive |
| 05/23/1990 | EP0187148B1 Rotary machine |
| 05/22/1990 | US4927341 Scroll machine with relieved flank surface |
| 05/22/1990 | US4927340 Synchronizing and unloading system for scroll fluid device |
| 05/17/1990 | DE3922574C1 Toroidal piston IC engine - incorporates separate chamber for preparation of fuel-air mixture |
| 05/16/1990 | CN2057218U Rotary-piston engine |
| 05/02/1990 | CN1041813A Multifunctional semi-rotor internal combustion engine |
| 05/02/1990 | CN1041812A Internal combustion engine with cavity rotary piston and making use of multiple kinds of fuel |
| 04/25/1990 | EP0365132A2 Scroll compressor |
| 04/18/1990 | EP0213154B1 Rotary motion fluid apparatus |
| 04/10/1990 | US4915600 Rotary apparatus with rotating mobile and stationary blocking members |
| 04/10/1990 | US4915071 Orbit internal combustion engine |
| 04/10/1990 | CA1267608A1 Rotary engine |
| 04/03/1990 | US4913565 Screw rotor compressor |
| 03/27/1990 | US4911622 Nutator bearing assembly |
| 03/27/1990 | US4911621 Scroll fluid device using flexible toothed ring synchronizer |
| 03/20/1990 | US4909715 Rotating type intake and discharge apparatus |
| 03/20/1990 | US4909337 Rotor of a screw hydraulic downhole motor, method for its production and a device for its production |
| 03/20/1990 | US4909208 Rotary internal combustion motor |
| 03/13/1990 | CA1266584A1 Internal gear device with improved rotary valve |
| 03/08/1990 | WO1990002248A1 Synchronizing and unloading system for scroll fluid device |
| 03/07/1990 | EP0240491B1 Rotary engine |
| 03/07/1990 | CN2054079U Rotor cylinder of engine |
| 02/28/1990 | CN1006995B Rotating piston machinery meshed with one side |
| 02/27/1990 | US4904170 Scroll-type fluid machine with different terminal end wrap angles |
| 02/22/1990 | WO1990001676A1 Planetary piston internal combustion engine |
| 02/20/1990 | US4902209 Sliding segment rotary fluid power translation device |
| 02/20/1990 | US4901694 Rotary engine |
| 02/14/1990 | EP0354342A1 Scroll-type fluid displacement machine |
| 02/08/1990 | DE3824539A1 Engine, especially internal combustion engine |
| 02/07/1990 | CN2052433U Rotary engines |
| 02/06/1990 | US4898525 Motor, pump and flow meter with a planetary system |
| 02/06/1990 | CA1265489A1 Scroll type fluid machine |
| 02/01/1990 | DE3825481A1 Rotationskolbenmaschine Rotary piston engine |
| 02/01/1990 | DE3825372A1 Rotary engine |
| 01/31/1990 | CN2052044U High efficiency and multi-energy power machine |
| 01/31/1990 | CN2052043U Double rotary-piston engine with four ratchets |
| 01/17/1990 | CN2051281U Rotary double-piston rotor machine |
| 01/11/1990 | DE3823027A1 Engine with a thin-walled roller piston |
| 01/11/1990 | DE3822935A1 Internal combustion engine |
| 01/10/1990 | CN2050881U Rotating board engine |
| 01/03/1990 | CN1006319B Rotary piston engine with ring cylinder |