| Patents for F04B 25 - Multi-stage pumps specially adapted for elastic fluids (1,208) |
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| 10/06/1987 | US4697992 Piston ring for a piston in a refrigerant compressor |
| 10/03/1987 | CN86201436U Exhaust device for refrigeration compressor |
| 09/29/1987 | US4696866 Aluminum, silicon alloy type; wear, heat resistance; engines |
| 09/15/1987 | US4693674 Cylinder head for refrigerant compressor |
| 09/08/1987 | US4691526 Air conditioning unit for vehicle |
| 09/02/1987 | EP0112382B1 Sealed, self-contained, liquid-cooled, gas compressor unit |
| 09/01/1987 | US4690619 Compressor having pulsating reducing mechanism |
| 08/26/1987 | EP0233771A2 Rotary pressure intensifier |
| 08/18/1987 | US4687419 Variable angle wobble plate type compressor which maintains the crankcase pressure at a predetermined value |
| 08/05/1987 | CN86204230U Variable displacement compressor |
| 06/30/1987 | US4676143 Piston seal device for reciprocating compressor |
| 06/02/1987 | US4669272 Variable displacement refrigerant compressor of variable angle wobble plate type |
| 05/12/1987 | US4664604 Slant plate type compressor with capacity adjusting mechanism and rotating swash plate |
| 04/14/1987 | US4657488 Two stage stepped piston air compressor |
| 04/08/1987 | CN85107092A 流体机器 Fluid machine |
| 03/25/1987 | CN86104569A Piston compressor with long stroke and low reciprocating frequency |
| 03/24/1987 | US4652217 Double acting type compressor |
| 02/25/1987 | CN86105046A Semi-sealed refrigerating compressor |
| 02/10/1987 | US4641570 Swash plate type compressor having a center cavity in surface of piston shoe |
| 02/10/1987 | CA1217748A Motor compressor and method of assembling same |
| 01/07/1987 | EP0207613A1 Variable capacity wobble-plate type compressor |
| 12/30/1986 | US4632640 Wobble plate type compressor with a capacity adjusting mechanism |
| 12/09/1986 | US4627795 Piston assembly for a compressor or the like |
| 11/11/1986 | US4621983 Variable capacity wobble plate compressor with improved means for returning lubricating oil to crankcase |
| 10/29/1986 | EP0199512A2 Compressor with rotation detecting device |
| 10/07/1986 | US4615259 Reciprocating gas compressor |
| 09/17/1986 | CN86101797A Improved piston ring for a piston in a refrigerant compressor |
| 09/09/1986 | US4610604 Swash-plate-type compressor with a muffling arrangement |
| 09/03/1986 | CN86101923A Valve plate assembly for a refrigerant compressor |
| 09/03/1986 | CN86101891A Cylinder block for refrigerating compressor |
| 08/06/1986 | EP0190013A2 Variable capacity compressor |
| 07/30/1986 | EP0188704A2 Fiber reinforced metal composite material |
| 07/23/1986 | CN86101051A Capacity variable type compressor |
| 06/25/1986 | CN85203981U Mud pump for petroleum drilling |
| 05/06/1986 | US4586874 Refrigerant compressor with a capacity adjusting mechanism |
| 03/05/1986 | EP0172970A2 Refrigerant compressor |
| 03/04/1986 | US4573878 Variable-delivery compressor |
| 01/08/1986 | EP0166804A1 Two stage rotary compressor |
| 01/08/1986 | EP0166767A1 Multistage resonant compressor |
| 11/19/1985 | US4553905 Variable capacity wobble plate compressor with high stability of capacity control |
| 11/19/1985 | US4553903 Two-stage rotary compressor |
| 10/01/1985 | US4544332 Double acting type compressor |
| 09/03/1985 | US4538964 Multistage resonant compressor |
| 08/06/1985 | US4533299 Variable capacity wobble plate compressor with prompt capacity control |
| 07/18/1985 | WO1985003111A1 Multistage resonant compressor |
| 05/14/1985 | US4516913 Multistage drum compressor |
| 12/05/1984 | EP0127559A1 Variable capacity compressor and method of operating |
| 10/23/1984 | US4478556 Three or four stage gas compressor |
| 09/19/1984 | EP0118427A1 Multiple-stage pump |
| 09/11/1984 | US4470761 Swash plate type compressor |
| 07/17/1984 | US4460319 Two-stage rotary compressor |
| 04/24/1984 | US4444549 Refrigerant compressor |
| 03/15/1984 | WO1984001001A1 Multiple-stage pump |
| 02/14/1984 | US4431378 Swash plate type compressor |
| 01/19/1984 | WO1984000196A1 Sealed, self-contained, liquid-cooled, gas compressor |
| 01/17/1984 | US4425764 Micro-cryogenic system with pseudo two stage cold finger, stationary regenerative material, and pre-cooling of the working fluid |
| 11/29/1983 | CA1157832A1 Two stage stepped piston air compressor |
| 11/15/1983 | US4415315 Swash-plate type compressor having an improved lubricant oil feeding arrangement |
| 11/08/1983 | US4413954 Swash-plate type compressor having pumpless lubricating system |
| 11/01/1983 | US4412787 Swash-plate type compressor having an improved lubricant oil feeding arrangement |
| 10/11/1983 | US4408962 Swash plate type compressor |
| 09/29/1983 | WO1983003297A1 Micro-cryogenic system with pseudo two stage cold finger, stationary regenerative material and pre-cooling of the working fluid |
| 09/29/1983 | WO1983003296A1 Miniature cryogenic cooling system with split-phase dual compressor and phase-shifting device |
| 06/28/1983 | US4390322 Lubrication and sealing of a free floating piston of hydraulically driven gas compressor |
| 05/31/1983 | US4385499 Miniature cryogenic cooling system with split-phase dual compressor and phase-shifting device |
| 05/17/1983 | US4383804 Lubrication and sealing of a free floating piston of hydraulically driven gas compressor |
| 05/10/1983 | US4382750 High pressure fluid pump |
| 05/03/1983 | CA1145728A1 Three or four stage gas compressor |
| 05/03/1983 | CA1145727A1 Four stage gas compressor |
| 04/26/1983 | US4381178 Swash-plate type compressor |
| 02/17/1983 | WO1983000539A1 Reciprocatory piston and cylinder machine |
| 02/15/1983 | US4373865 Reciprocating controls of a hydraulically driven piston gas compressor |
| 01/25/1983 | US4369633 Multiple stage compressor with flash gas injection assembly |
| 01/11/1983 | US4368008 Reciprocating controls of a gas compressor using free floating hydraulically driven piston |
| 11/10/1982 | EP0064481A1 A reciprocating, hydraulically operated, positive displacement compressor |
| 11/10/1982 | EP0064177A1 A multi-stage gas compressor |
| 09/28/1982 | CA1132508A1 Compressor modulation delay valve for variable capacity compressor |
| 08/24/1982 | US4345880 Multi-stage, reciprocating, positive displacement compressor |
| 08/10/1982 | US4343479 Mechanical seals |
| 06/15/1982 | US4334833 Four-stage gas compressor |
| 12/01/1981 | CA1113436A1 Variable capacity wobble plate compressor |
| 11/10/1981 | US4299543 Swash plate compressor |
| 08/04/1981 | US4281972 Apparatus for controlling the performance of a motor compressor |
| 07/07/1981 | CA1104537A1 Variable capacity compressor |
| 05/19/1981 | US4268225 Structure of a shoe for a swash plate type compressor |
| 05/05/1981 | CA1100456A2 Variable displacement compressor with three-piece housing |
| 04/28/1981 | US4263814 Shoe for use in a swash-plate type compressor |
| 03/10/1981 | CA1097090A1 Apparatus for controlling the performance of a motor compressor |
| 02/10/1981 | CA1095357A1 Engine driven vacuum pump |
| 11/04/1980 | US4231713 Compressor modulation delay valve for variable capacity compressor |
| 07/22/1980 | CA1081979A1 Integrated multi-unit refrigeration motor-compressor assembly |
| 05/27/1980 | CA1078347A1 Compressed air filter assembly |
| 01/15/1980 | CA1069864A2 Variable displacement compressor |
| 12/11/1979 | US4178135 Variable capacity compressor |
| 11/06/1979 | US4173433 Two-stage gas compressor |
| 05/29/1979 | US4156416 Engine driven vacuum pump |
| 03/20/1979 | US4145163 Variable capacity wobble plate compressor |
| 02/07/1979 | EP0000611A1 A piston air or gas compressor, preferably for filling divers' breathing air cylinders |
| 01/30/1979 | US4137019 Rotary piston machine |
| 12/26/1978 | CA1045173A1 Non-friction pressure seal |