| Patents for F04B 27 - Multi-cylinder pumpsspecially adapted for elastic fluids and characterised by number or arrangement of cylinders (7,781) |
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| 04/03/1990 | US4913627 Wobble plate type compressor with variable displacement mechanism |
| 04/03/1990 | US4913626 Wobble plate type compressor with variable displacement mechanism |
| 03/14/1990 | EP0357782A1 Control apparatus for variable-capacity compressors |
| 03/13/1990 | US4907950 Variable positive fluid displacement system |
| 03/07/1990 | EP0356990A2 Variable positive fluid displacement system |
| 03/06/1990 | US4905477 Refrigerant circuit with passageway control mechanism |
| 02/21/1990 | CN1039880A Controlling valve of compressor |
| 02/21/1990 | CN1006926B Compressor with rotation detecting device |
| 02/07/1990 | CN1039468A Slant plate type compressor with variable displacement mechanism |
| 02/01/1990 | DE3924347A1 Swashplate compressor with variable flow - has angle of swashplate changed by pressure acting on central piston |
| 01/31/1990 | CN1039286A Slant plate type compressor with variable displacement mechanism |
| 01/25/1990 | DE3824752A1 Swash plate compressor |
| 01/23/1990 | US4894999 Automatic air conditioning system with variable displacement compressor, for automotive vehicles |
| 01/17/1990 | CN1006489B Hermetic motor-compressor unit for a refrigeration circuit |
| 01/17/1990 | CN1006488B Wobble plate type compressor with variable displacement mechanism |
| 01/16/1990 | US4893993 Lubrication system for a refrigerant compressor |
| 01/02/1990 | US4890458 Refrigerating circuit for car air conditioning |
| 12/13/1989 | EP0346268A1 Function control valve for a compressor |
| 12/12/1989 | US4886424 Multi-piston swash plate type compressor with damping arrangement for discharge reed valves |
| 12/12/1989 | US4886423 Variable displacement swash-plate type compressor |
| 12/05/1989 | US4884952 Variable displacement compressor |
| 11/29/1989 | EP0343581A1 Variable capacity type swash plate compressor |
| 11/28/1989 | US4882909 Refrigerating system having a compressor with an internally and externally controlled variable displacement mechanism |
| 11/14/1989 | US4880361 Multi-piston swash plate type compressor with arrangement for internal sealing and for uniform distribution of refrigerant to cylinder bores |
| 11/14/1989 | US4880360 Variable displacement compressor with biased inclined member |
| 11/14/1989 | US4880356 Method of controlling wobble plate type compressor |
| 11/07/1989 | US4878817 Wobble plate type compressor with variable displacement mechanism |
| 11/02/1989 | WO1989010468A1 Piston machine |
| 11/02/1989 | EP0340024A1 Slant plate type compressor with variable displacement mechanism |
| 11/02/1989 | EP0339897A1 Slant plate type compressor with variable displacement mechanism |
| 10/25/1989 | EP0338762A2 Starting displacement setting device in variable displacement compressor |
| 10/25/1989 | EP0338761A2 Control cylinder device in variable displacement compressor |
| 10/24/1989 | US4875834 Wobble plate type compressor with variable displacement mechanism |
| 10/24/1989 | US4875832 Pressure control valve for variable displacement swash plate type compressor |
| 10/17/1989 | US4874295 Slant plate type compressor with variable displacement mechanism |
| 10/10/1989 | US4872815 Slant plate type compressor with variable displacement mechanism |
| 10/10/1989 | US4872814 Variable displacement compressor passive destroker |
| 10/04/1989 | CN1005347B Valve plate assembly for refrigerant compressor |
| 10/03/1989 | US4870894 Wobble plate type compressor with a drive shaft attached to a cam rotor at an inclination angle |
| 10/03/1989 | US4870893 Wobble plate type compressor with a drive shaft attached to a cam rotor at an inclincation angle |
| 09/27/1989 | EP0334634A1 Slant plate type compressor |
| 09/26/1989 | US4869651 Wobble plate type compressor |
| 09/26/1989 | US4869154 Wobble plate type compressor with a drive shaft attached to a cam rotor at an inclination angle |
| 09/19/1989 | US4867650 Reciprocatory piston type compressor with noise free suction valve mechanism |
| 09/19/1989 | US4867649 Refrigerating system |
| 09/19/1989 | US4867648 Variable displacement wobble plate type compressor for automotive air conditioner refrigeration system or the like |
| 09/19/1989 | CA1259683A1 Compressor with rotation detection device |
| 09/12/1989 | US4865523 Wobble plate compressor with variable displacement mechanism |
| 09/12/1989 | US4864832 Air conditioner system for automobiles |
| 09/06/1989 | EP0330965A1 Variable-capacity swash-plate type compressor |
| 09/05/1989 | US4863356 Multi-cylinder refrigerant gas compressor with a muffling arrangement |
| 08/31/1989 | DE3904659A1 Adjustable pressure-needle bearing for a swash-plate compressor |
| 08/30/1989 | CN1035164A Refrigerant compressor |
| 08/29/1989 | US4860641 Variable stroke compressor socket plate |
| 08/29/1989 | US4860549 Variable displacement wobble plate type compressor |
| 08/29/1989 | CA1258838A1 Cylinder head with pressure regulator valve |
| 08/23/1989 | CN1034979A Refrigerant compressor |
| 08/23/1989 | CN1034978A Refrigerant compressor |
| 08/16/1989 | CN1034788A Axial sliding-vane type compressor |
| 08/02/1989 | EP0326043A1 Refrigerant compressor with axial vibration absorption mechanism |
| 08/02/1989 | CN2042117U Compressor with radiant rotor |
| 07/27/1989 | WO1989006752A1 Control apparatus for variable-capacity compressors |
| 07/26/1989 | EP0325168A1 Slant plate type compressor with variable displacement mechanism |
| 07/25/1989 | US4850811 Compressor with variable displacement mechanism |
| 07/25/1989 | US4850810 Slant plate type compressor with variable displacement mechanism |
| 07/18/1989 | US4848101 Method and system for controlling capacity of variable capacity wobble plate compressor |
| 07/11/1989 | US4846630 Variable displacement wobble plate type compressor with a solenoid operated wobble angle control unit |
| 07/11/1989 | US4846049 Wobble plate type compressor with variable displacement mechanism |
| 06/27/1989 | US4842488 Slant plate type compressor with variable displacement mechanism |
| 06/27/1989 | US4841737 Method for controlling a displacement changing mechanism of a variable displacement refrigerant compressor for a car air-conditioner |
| 06/27/1989 | US4841736 Method for controlling the operation of a variable displacement refrigerant compressor for a car air-conditioner |
| 06/14/1989 | CN1004509B Improved piston ring for a piston in a refrigerant compressor |
| 06/13/1989 | US4838770 Pumping device |
| 06/13/1989 | US4838766 Method for controlling displacement of a variable displacement wobble plate type compressor |
| 06/07/1989 | EP0318976A1 Slant plate type compressor with variable displacement mechanism |
| 06/06/1989 | US4836754 Turbulence generating device adjacent the inlet end of each discharge port of a multi-cylinder piston-type compressor for providing internal pulsation and noise suppression |
| 06/06/1989 | US4836090 Balanced variable stroke axial piston machine |
| 05/31/1989 | EP0318316A1 Slant plate type compressor with variable displacement mechanism |
| 05/23/1989 | CA1254523A1 Slant plate type hydraulic device |
| 05/16/1989 | US4830580 Two-stage air compressor unit |
| 04/18/1989 | US4822252 Variable capacity compressor |
| 04/11/1989 | US4820133 Axial piston compressor with discharge valving system in cast housing head |
| 04/11/1989 | US4820132 Variable displacement wobble plate type compressor |
| 04/06/1989 | WO1989002985A1 Rotary piston compressor |
| 03/29/1989 | EP0309242A2 Refrigerating system having a compressor with an internally and externally controlled variable displacement mechanism |
| 03/28/1989 | US4815943 Variable displacement wobble plate compressor with capacity control valve |
| 03/28/1989 | US4815358 Balanced variable stroke axial piston machine |
| 03/28/1989 | US4815300 Air conditioner system for automobiles |
| 03/21/1989 | US4813854 Variable capacity vane compressor |
| 03/21/1989 | US4813852 Discharge arrangement of a compressor having a plurality of compression chambers |
| 03/15/1989 | CN1031746A Wobble plate type compressor |
| 03/15/1989 | CN1031745A Compressor with rotation detecting device |
| 02/08/1989 | EP0302325A2 Wobble plate type compressor with variable displacement mechanism |
| 02/07/1989 | US4802826 Sealed, self-contained, liquid-cooled, gas compressor |
| 02/01/1989 | EP0301519A2 Compressor with variable displacement mechanism |
| 02/01/1989 | EP0301312A2 Variable capacity vane compressor |
| 01/31/1989 | US4801248 Variable capacity swash plate compressor |
| 01/25/1989 | EP0300831A1 Wobble plate compressor with variable displacement mechanism |
| 01/18/1989 | CN2031042U Energy saver for air compressor |
| 01/04/1989 | EP0297514A1 Refrigerant circuit with passagaway control mechanism |