Patents for F01C 1 - Rotary-piston machines or engines (9,235)
01/1994
01/25/1994US5281115 Rotary screw machine having thrust balancing means
01/25/1994US5281114 Dynamically balanced co-orbiting scrolls
01/19/1994EP0578853A1 Rotary machine with conjugated profiles in continuous contact
01/12/1994EP0577715A1 Rotary device with a toric chamber
01/11/1994US5277562 Scroll fluid machine and producing method for the same
01/11/1994US5277158 Multiple vane rotary internal combustion engine
01/06/1994WO1994000692A1 Piston unloader arrangement for screw compressors
01/05/1994EP0577234A1 Scroll type fluid apparatus
12/1993
12/23/1993WO1993025801A1 Piston machine
12/21/1993US5271364 Rotary internal combustion engine
12/16/1993DE4218847A1 Kolbenmaschine Piston engine
12/15/1993EP0573516A1 Thermodynamic systems including gear type machines for compression or expansion of gases and vapors
12/15/1993EP0403599B1 Scroll fluid device provided with synchronizing and unloading means
12/14/1993US5269668 Folding-unfolding rotating flap meter-motor-pump
12/14/1993US5269667 Removabe discharge port plate for a compressor
12/14/1993US5269661 Scroll type fluid displacement apparatus having a capacity control mechanism
12/01/1993EP0571910A1 Rotary piston machine
11/1993
11/24/1993EP0570482A1 Pressurized vapor driven rotary engine
11/18/1993EP0569454A1 Device for conveying and/or compressing media and working or power machines.
11/18/1993DE4215820A1 Shaping of helical toothed rotors in rotary piston engine - ensures that only cylindrical portions of rotors can touch in event of mutual encroachment of axes during compression
11/18/1993DE4215618A1 Power plant working on closed cycle principle - operates by expansion of hot gas between two paraboloid pistons rotating in same direction
11/17/1993CN1022772C Combined impeller rotary engine
11/16/1993US5261802 Screw vacuum pump
11/16/1993US5261365 Rotary internal combustion engine
11/10/1993EP0404921B1 Rotor pair for a high-pressure screw-type compressor
11/09/1993US5259739 Non-reciprocating multi-piston engine
11/09/1993CA2068302A1 Revolving-rotating vane meter-motor-pump
11/03/1993EP0568493A2 Internal axis rotary piston machine
11/03/1993EP0542759A4 A multi-chamber rotary lobe fluid machine with positive sliding seals
11/02/1993US5258046 Scroll-type fluid machinery with seals for the discharge port and wraps
11/02/1993US5257921 Electronic slide valve position indicator
10/1993
10/28/1993WO1993021424A1 Variable displacement pump
10/28/1993WO1993021423A1 Remote combustion rotary engine
10/20/1993EP0456713B1 Arrangement of pumps or similar machines
10/20/1993CN1022502C Inner combustion engine with three-ring rolling rotator
10/19/1993USRE34413 Synchronizer and unloading system for scroll fluid device
10/19/1993US5253989 Scroll fluid apparatus having a revolving scroll of separate members
10/14/1993WO1993020342A1 Scroll expander driven compressor assembly
10/14/1993WO1993020332A1 Scroll machine
10/14/1993DE4212326A1 Orbital engine to drive machines - consists of housing with ring-shaped rotor and pistons, which rotate about point outside rotor axis
10/14/1993CA2133317A1 Scroll expander driven compressor assembly
10/13/1993CN2143678Y Wortex flow liquid machinery with self-turning-proof mechanism
10/13/1993CN1077254A Multi-function variable vane pump and motor
10/13/1993CN1077245A Shell-rotating double-action variable vane motor
10/13/1993CN1077244A Hydraulic motor for non-circular epicyclic train
10/12/1993CA2059598C Method and apparatus for enhanced scroll stability in a co-rotational scroll
09/1993
09/30/1993DE4209444A1 Rotary vane piston engine - has crankpins on each crankshaft displaced at 180 degrees on crank axis
09/30/1993DE4209443A1 Rotating piston IC-engine - has pistons tapered along radius and crank radius equal to or greater than radius of individual planet gear in gearbox
09/29/1993CN1022259C Flexible rotator engine
09/28/1993US5248246 Orbiting ball meter-motor-pump
09/28/1993US5248244 Scroll compressor with a thermally responsive bypass valve
09/28/1993US5247795 Scroll expander driven compressor assembly
09/23/1993DE4208747A1 Four stroke cycle rotary piston engine - uses two pairs of pistons movable counter to each other
09/22/1993EP0561212A2 Fluid displacement apparatus with a spiral element
09/17/1993CA2063110A1 Rotary machine with oval piston in triangular chamber
09/16/1993WO1993018280A1 Screw compressor providing thrust bearing force compensation
09/16/1993DE4207936A1 Rotary IC engine for gaseous or liquid fuel - has integrated starter and pump and uses set of four sealing and transposition rollers.
09/15/1993EP0560709A2 Method of generating the surfaces of a piston for a rotary piston machine
09/15/1993EP0560009A1 Positive displacement machine on the spiral principle
09/15/1993CN1076249A Rotary piston machine and use of said machine
09/08/1993CN1076010A Convolute-hydrodynamic mechanics
09/07/1993US5242288 Rotary engine or pump with a round toroidal cylinder and pistons
09/02/1993WO1993017239A1 Windage loss reduction arrangement for scroll fluid device
09/02/1993WO1993017224A1 Positive displacement machine with reciprocating and rotating pistons, particularly four-stroke engine
09/02/1993WO1993017223A1 Screw rotors type machine
09/02/1993WO1993017222A1 Compliance mounting mechanism for scroll fluid device
09/02/1993WO1993017221A1 Thermal isolation arrangement for scroll fluid device
09/02/1993WO1993017220A1 Tip seal supporting structure for a scroll fluid device
09/02/1993CA2130260A1 Positive displacement machine with reciprocating and rotating pistons, particularly four-stroke engine
09/01/1993EP0558167A1 Scroll-type fluid machine
08/1993
08/25/1993CN2140959Y Vane mtor
08/19/1993WO1993016270A1 Rotary fluid displacement apparatus
08/17/1993US5235945 Rotary engine system
08/05/1993DE4302141A1 Rotary piston engine assembly - has piston made of two steel plates on drum, which rotate within air-tight steel housing drum
08/04/1993EP0554227A1 Engine with rotary pistons having a cyclic spend variation and driving means
08/04/1993EP0553524A1 Rotary engine
08/04/1993CN1021747C Scroll type fluid machinery
07/1993
07/28/1993EP0552443A1 Gear machine
07/22/1993DE4201127A1 Piston engine with annular arcuated cylinders - has oppositely moving piston segments and scavenging ducts
07/21/1993CN1074513A Coupling mechanism of vortex machinery
07/20/1993US5228309 Portable self-contained power and cooling system
07/14/1993CN1074276A Scroll fluid machine, scroll element and processing method thereof
07/14/1993CN1021590C Scroll-type fluid machinery
07/08/1993WO1993013296A1 Rotary piston pump
07/08/1993WO1993013295A1 Rotary engine system
07/08/1993CA2126326A1 Rotary piston pump
07/08/1993CA2125654A1 Rotary engine system
07/07/1993EP0549952A1 Scroll fluid machine, scroll member and processing method thereof
07/06/1993US5224850 Rotary device with vanes composed of vane segments
07/06/1993US5224849 Compliance mounting mechanism for scroll fluid device
07/06/1993US5224847 Rotary engine
07/06/1993CA1319890C Synchronizing and unloading system for scroll fluid device
06/1993
06/30/1993EP0548416A1 Rotary machine
06/30/1993CN1073744A Two-stroke rotary polygonal piston engine
06/30/1993CN1021469C Multifunctional semi-rotor internal combustion engine
06/29/1993US5222882 Tip seal supporting structure for a scroll fluid device
06/29/1993US5222463 Oscillating piston engine
06/23/1993EP0548002A1 Coupling mechanism for scroll machines
06/23/1993EP0547491A1 Fluid displacement apparatus with a spiral element
06/22/1993US5221197 Working member of a helical downhole motor for drilling wells
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