| Patents for F01C 21 - Component parts, details, or accessories, not provided for in groups (5,689) |
|---|
| 08/29/1990 | EP0384335A1 Rotary hydraulic machine |
| 08/28/1990 | CA1273300A1 Distribution system for scroll machine |
| 08/23/1990 | DE3905081A1 Rotary piston engine |
| 08/22/1990 | EP0211826B1 Screw compressor |
| 08/14/1990 | US4948432 Method for manufacturing a rotor for use in a progressive cavity pump |
| 08/14/1990 | US4948346 Fuel pump mount for reduction of vibration transmission |
| 08/14/1990 | CA1272637A1 Gear pump |
| 08/09/1990 | WO1990008900A1 Split vane for vane pumps or motors |
| 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 |
| 08/07/1990 | US4946351 Compressor mounting system |
| 07/31/1990 | US4944663 Rotary compressor having oxidizing and nitriding surface treatment |
| 07/26/1990 | WO1990008261A1 Rotor pair for a high-pressure screw-type compressor |
| 07/10/1990 | US4940400 Lubrication system for a rotary-piston internal combustion engine |
| 07/10/1990 | US4940394 Adjustable wearplates rotary pump |
| 07/04/1990 | EP0376642A1 Rotary engine |
| 06/28/1990 | DE3843860A1 Compressor/supercharger |
| 06/26/1990 | US4936761 Vane backpressure providing apparatus for sliding vane type compressor |
| 06/24/1990 | CA2006457A1 Rotary engine |
| 06/19/1990 | USRE33236 Bearing device of sealed type scroll compressor |
| 06/19/1990 | US4934910 Scroll-type fluid apparatus with radially compliant driving means |
| 06/06/1990 | EP0371167A1 Rotary vane pump |
| 05/16/1990 | EP0368124A1 Multistage Roots pump and its assembly method |
| 05/10/1990 | DE3937197A1 Multicell compressor - with borided high carbon pearlitic steel blades |
| 05/03/1990 | DE3935293A1 Vane-type pump assembly - has tank containing hollow plastics insert held by pressure plate against housing |
| 04/26/1990 | DE3934280A1 Radial sliding vane pump - with specified lining for rotor and rotor drive shaft |
| 04/25/1990 | EP0365132A2 Scroll compressor |
| 04/24/1990 | US4919601 Waveform actuating air compressor |
| 04/18/1990 | EP0363565A2 Rotary piston internal-combustion engine |
| 04/17/1990 | US4917584 Vane pump with annular aetainer limiting outward radial vane movement |
| 04/17/1990 | US4917583 Bearing support for a twin-shaft pump |
| 04/17/1990 | US4917581 Mounting boot for a hermetic compressor |
| 04/11/1990 | EP0363112A2 Power transmission |
| 04/10/1990 | US4915514 Rotary machine equipped with a thrust balancing arrangement |
| 04/05/1990 | WO1990003495A1 Positive vane control - rotary fluid pump/motor |
| 04/03/1990 | US4913636 Rotary vane device with fluid pressure biased vanes |
| 04/03/1990 | US4913565 Screw rotor compressor |
| 03/28/1990 | EP0360756A2 Wobbling drive for an orbitally moving member |
| 03/27/1990 | US4911624 Reduced friction vane design for rotary compressors |
| 03/27/1990 | US4911623 Method and apparatus for lubricating a rotary engine |
| 03/07/1990 | EP0240491B1 Rotary engine |
| 02/28/1990 | EP0355889A1 Improvements in or relating to rotor blades |
| 02/27/1990 | US4904302 Roller in rotary compressor and method for producing the same |
| 02/14/1990 | CN2052829U Automatically spreading impeller ultra low speed oil pump |
| 02/13/1990 | US4900238 Scroll type compressor with releasably secured hermetic housing |
| 02/06/1990 | US4898526 Vane pump with axial inlet and peripheral tangential outlet |
| 02/06/1990 | US4898524 Fluid driven rotary motor |
| 02/06/1990 | US4898522 System for cooling the rotary engine rotor |
| 02/06/1990 | CA1265489A1 Scroll type fluid machine |
| 01/25/1990 | WO1990000669A1 Improvements in or relating to rotor blades |
| 01/23/1990 | US4895501 Rotary compressor with vane positioned to reduce noise |
| 01/11/1990 | DE3823027A1 Engine with a thin-walled roller piston |
| 01/11/1990 | DE3822935A1 Internal combustion engine |
| 01/03/1990 | EP0348417A1 A rotary machine equipped with a thrust balancing arrangement. |
| 01/02/1990 | US4890990 Rotary internal combustion engine with mutually interengaging rotatable elements |
| 12/20/1989 | CN2049698U Ultralow speed oil pump capable of ejecting vane automatically |
| 12/20/1989 | CN1006176B Gear pump or motor |
| 11/30/1989 | DE3821168C1 Bearing arrangement |
| 11/02/1989 | EP0339332A2 Vane pump for the transport of food products |
| 11/02/1989 | EP0339327A1 Conveying device for pasty products |
| 11/02/1989 | DE3813647A1 Rotary pump |
| 10/25/1989 | CN1036620A Waveform actuating air compressor |
| 10/17/1989 | US4874302 Scroll compressor with oil feeding passages in thrust bearing |
| 10/03/1989 | US4870827 Fiber reinforced resin matrix housing; air conditioner |
| 09/20/1989 | CN1035703A Rotary internal combustion engine |
| 09/19/1989 | US4867658 Rotary vane compressor having pressure-biased vanes |
| 08/31/1989 | DE3805264A1 Multi part sliding vane for the rotor of rotary machines |
| 08/29/1989 | US4861372 Roller in rotary compressor and method for producing the same |
| 08/24/1989 | DE3821162C1 Rotary engine |
| 08/23/1989 | EP0328825A2 Method for forming a torus and a piston made therefrom for use in a rotary actuator |
| 08/22/1989 | US4859164 Ferrous sintered alloy vane and rotary compressor |
| 08/22/1989 | US4859163 Rotary pump having vanes guided by bearing blocks |
| 08/22/1989 | US4859162 Rotary vane compressor |
| 08/17/1989 | DE3821889C1 Rotary engine |
| 08/16/1989 | CN1034790A 涡旋式压缩机 Scroll compressor |
| 07/25/1989 | US4850827 Cooling system of an eccentric shaft of a rotary piston internal combustion engine |
| 07/20/1989 | DE3800573A1 Vane pump |
| 07/19/1989 | EP0323979A1 Rotary machine |
| 07/11/1989 | US4846642 Rotary piston blower with foamed synthetic material surfaces running along roughened metal surfaces |
| 07/06/1989 | DE3831860A1 Arrangement for torque-dependent control of the compressed air supply in compressed air machine tools |
| 06/27/1989 | US4842725 Assembly for making up untreated water according to the principle of reverse osmosis |
| 06/27/1989 | US4842500 Vane pump with positioning pins for cam ring |
| 06/20/1989 | US4840549 Scroll compressor with control of distance between driving and driven scroll axes |
| 06/15/1989 | DE3740696A1 Vane pump for gases, vapours or similar pressure media |
| 06/08/1989 | DE3740333A1 Vane for the rotor of rotary machines |
| 06/07/1989 | EP0318509A1 Axial bearing device. |
| 06/06/1989 | US4836758 Scroll compressor with canted drive busing surface |
| 06/01/1989 | WO1989004912A1 Rotary piston compressed air motor |
| 05/30/1989 | US4834623 Electric fuel pump |
| 05/24/1989 | EP0317270A2 Scroll compressor |
| 05/18/1989 | DE3737358A1 Bearing housing for an inside-mounted screw pump, and method for its manufacture |
| 05/16/1989 | US4830593 Pump with vane actuating system |
| 05/16/1989 | US4830591 Lubrication system for a rotary-piston internal combustion engine |
| 05/09/1989 | US4827800 Multi-groove and spline connection between gear shaft of a rotary piston machine with internal axis and method of making such a multigroove spline connection |
| 05/03/1989 | EP0314014A1 Hybrid electro-pneumatic robot joint actuator |
| 05/02/1989 | US4826411 Air pump vane assembly |
| 04/27/1989 | DE3734135A1 Rotary piston with output device for planetary rotation engines |
| 04/25/1989 | US4824346 Scroll type fluid displacement apparatus with balanced drive means |
| 04/20/1989 | WO1989002533A3 Rotary hydraulic machines |