| Patents for F01C 1 - Rotary-piston machines or engines (9,235) |
|---|
| 02/13/1992 | DE4025406A1 Rotary compressor or IC engine - has housing containing working rotor and synchronous rotor with fixed rotation ratio |
| 02/13/1992 | DE4025394A1 Machine with variable-volume chambers - has wall hinge spindles coupled by rigid components on coaxial pitch circle |
| 02/12/1992 | CN2095942U Double rotor engine |
| 02/12/1992 | CN1058633A Internal combustion engine with fractional gear transmission and arc-cylindrical rotating piston |
| 02/12/1992 | CN1015483B Ball-type rotary pump and machine |
| 02/11/1992 | US5087180 Fluid motor having reduced lubrication requirement |
| 02/05/1992 | EP0469700A1 Scroll machine lubrication system |
| 02/05/1992 | EP0441913A4 Frictionless rotary pump-motor-meter |
| 02/05/1992 | CN1058456A Scroll type fluid machinery |
| 02/05/1992 | CN1058452A Three-potential engine and oil-spraying atomizer thereof |
| 02/05/1992 | CN1015394B Rotary piston machine |
| 01/29/1992 | EP0468605A1 Scroll type fluid machinery |
| 01/28/1992 | US5083540 Rotary engine |
| 01/28/1992 | US5083539 Concentric rotary vane machine with elliptical gears controlling vane movement |
| 01/28/1992 | CA1294891C Energy-efficient turbine apparatus |
| 01/23/1992 | DE4014279A1 Four-stroke, rotary vane IC engine - has vane rotating in one direction only in circular, radial, working chamber |
| 01/16/1992 | DE4021233A1 Rotary-piston fluid engine - comprises four or more machines together forming power units and working machines |
| 01/14/1992 | US5080566 Fluid scroll machine with projection on one side of Oldham ring |
| 01/09/1992 | DE4021148A1 Four-stroke rotary piston IC engine - has concentric movement of all mechanical parts giving optimum formation of piston displacement and combustion chamber |
| 01/08/1992 | CN1057701A Internal combustion engine with "taiji" type rotor |
| 01/02/1992 | DE4020087A1 Gas compressor, vacuum pump or gas expansion motor - has slide plates which form seal unaffected by centrifugal force |
| 01/01/1992 | CN2091951U Screw arbor expander for recovering pressure energy of natural gas |
| 12/30/1991 | WO1992000455A1 Radial piston fluid machine and/or adjustable rotor |
| 12/27/1991 | EP0462924A1 Scroll type fluid machine |
| 12/26/1991 | WO1991015661A3 Variable-volume rotating fluid-dynamic machine |
| 12/25/1991 | CN1057313A Noncircular planetary gear variable-volume hydraulic system, |
| 12/17/1991 | US5073097 Multi-chamber rotary lobe fluid machine with positive sliding seats |
| 12/17/1991 | US5072705 Rotary engine and method |
| 12/12/1991 | WO1991019077A1 Internal-combustion engine |
| 12/12/1991 | DE4018326A1 Positive displacement pump with rotating chambers - has adjustable suction or discharge volume per revolution with primary and secondary adjustment on control ports |
| 12/11/1991 | EP0460578A1 Screw fluid machine |
| 12/10/1991 | US5071330 Roller-vane hydraulic machine |
| 12/10/1991 | US5071329 Scroll type fluid transferring machine with thermoplastic Oldham ring |
| 12/06/1991 | CA2018354A1 Fluid pump, fluid motor, fluid transmission, air compressor and steam engine |
| 12/04/1991 | EP0302877B1 Rotary positive displacement machine for a compressible working fluid |
| 12/04/1991 | CN1056730A Low differential control rotary piston machinery |
| 12/03/1991 | US5069606 Rotary fluid displacement apparatus |
| 12/03/1991 | US5069604 Radial piston rotary device and drive mechanism |
| 11/28/1991 | WO1991018193A1 Rotary engine |
| 11/27/1991 | CN1014920B Wobble-wheel fluid engine |
| 11/26/1991 | US5067883 Rotary internal combustion engine |
| 11/21/1991 | EP0456713A1 Arrangement of pumps or similar machines. |
| 11/21/1991 | EP0456677A1 Rotary piston internal combustion engine |
| 11/19/1991 | US5066207 Rotary device |
| 11/19/1991 | US5066206 Fluid scroll machine with torque transmitting coupling between scrolls |
| 11/19/1991 | US5066205 Screw rotor lobe profile for simplified screw rotor machine capacity control |
| 11/19/1991 | US5065550 Lapping of involute spiral scroll element |
| 11/14/1991 | WO1991017012A1 Rotor for a rotary screw machine, a rotary screw machine and a process for manufacturing a rotor |
| 11/14/1991 | DE4014851A1 Screw gear pump with adjustable delivery inlet volume flow - has at least one back pressure valve allowing permanent or periodical escape of flow fraction |
| 11/13/1991 | EP0456352A1 Rotary, positive displacement machine |
| 11/13/1991 | CN1056149A Rolling rotor type power machine |
| 11/12/1991 | US5064363 Non-lubricated screw machine with a rotor having a taper and varied helical angle |
| 11/12/1991 | US5063750 Rotary positive displacement compressor and refrigeration plant |
| 11/06/1991 | CN1055980A Rotary-piston non-gas fluid turbine |
| 10/31/1991 | DE4014010A1 Compressed air motor - has refillable balloon which can readily topped up at ant filling station to pressure of 7-10 bar |
| 10/31/1991 | DE4012815A1 Drive for control of rotary piston engine - has cardan joint shaft attached to piston pairs which give phase-displacement motion |
| 10/30/1991 | CN1055795A Energy conversion mechanism for variable gear hydraulic system |
| 10/23/1991 | CN1055578A High-speed rotary engine |
| 10/23/1991 | CN1055517A Bicycle speed-increased with a miniature hydraulic drive |
| 10/22/1991 | US5059102 Fluid scroll machine with peripherally attached counter weights and reduced thickness scroll |
| 10/17/1991 | WO1991015662A1 Rotary apparatus with rotating mobile and stationary blocking members |
| 10/17/1991 | WO1991015661A2 Variable-volume rotating fluid-dynamic machine |
| 10/17/1991 | WO1991015660A1 Rotary internal combustion engine (ric-engine) |
| 10/17/1991 | WO1991015659A1 A rotary engine |
| 10/17/1991 | DE4010865A1 Reciprocating rotary IC engine - has wedge-shaped radially moving pistons activated by expanding gaseous fluid in wedge-shaped chamber in engine housing |
| 10/16/1991 | CN2086797U Eddy-type fluid machinery with automatic eccentric regulator |
| 10/15/1991 | US5056993 Liquid intake mechanism for rotary vane hydraulic motors |
| 10/02/1991 | DE4010206A1 Wankel type rotary engine - operates on Stirling cycle with heated and cooled casing portions |
| 10/01/1991 | US5052905 Gear motor with valve controlled pressure biased end-plate seal |
| 10/01/1991 | US5052901 Lift valve in a rotary screw machine |
| 09/25/1991 | CN2085419U Fluid internal screw compression mechanism |
| 09/24/1991 | US5051078 Rotary pump-flowmeter |
| 09/24/1991 | US5051075 Gearing system having interdigited teeth with convex and concave surface portions |
| 09/19/1991 | WO1991014081A1 Engine stabiliser mechanism |
| 09/18/1991 | EP0446635A2 Scroll-type fluid machinery |
| 09/18/1991 | EP0377617B1 Gearwheel motor |
| 09/11/1991 | EP0296218B1 Profiles of screw-type rotors for rotary machines conveying a gaseous fluid |
| 09/10/1991 | US5046465 Rotary internal combustion engine |
| 09/04/1991 | CN2084104U External arcuate sliding block rotary piston machine and sealing device |
| 09/03/1991 | US5044907 Rotor device having inner rotor and driven outer rotor |
| 09/03/1991 | US5044894 Capacity volume ratio control for twin screw compressors |
| 08/27/1991 | CA1288012C High efficiency rotary steam engine |
| 08/22/1991 | WO1991012432A1 Rotary screw machine having thrust balancing means |
| 08/21/1991 | WO1991013240A1 Gearing system |
| 08/21/1991 | EP0441913A1 Frictionless rotary pump-motor-meter. |
| 08/20/1991 | US5040957 Co-rotor engine with valve system |
| 08/20/1991 | US5040949 Two stage dry primary pump |
| 08/14/1991 | CN2082762U 热泵机 Heat pump |
| 08/13/1991 | US5039290 Rotary expander |
| 08/13/1991 | US5039289 Rotary piston blower having piston lobe portions shaped to avoid compression pockets |
| 08/08/1991 | DE4003454A1 Rotary piston IC engine - has annular combustion chamber recessed in two face end joined rotating piston valves |
| 08/06/1991 | US5037280 Scroll fluid machine with coupling between rotating scrolls |
| 07/31/1991 | EP0318509B1 Axial bearing device |
| 07/31/1991 | CN2081886U Pneumatic motor with two-way rotating blade and double main exhaust orifices |
| 07/31/1991 | CN2081885U Total-enclosed verticle eddy fluid machinery |
| 07/25/1991 | WO1991010812A1 Rotary valve machine |
| 07/25/1991 | WO1991010811A1 Rotary-piston internal-combustion engine |
| 07/25/1991 | DE4039368A1 Rotary IC engine - has ceramic sealing rings to reduce wear on rings and inner surface of housing |
| 07/17/1991 | CN2080990U Driver for rotary engine |
| 07/17/1991 | CN2080989U Eddy type fluid machinery with spin preventing machinery |