| Patents for F04B 39 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups (22,436) |
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| 11/05/1991 | US5062773 Swash plate type refrigerant compressor with a separator of refrigerant gas and lubricant oil |
| 10/30/1991 | CN1055801A Suspension system for reciprocating hermetic compressor |
| 10/24/1991 | DE4110912A1 Dry-running piston compressor - has ventilating system conducting cooling air through crankcase |
| 10/23/1991 | EP0453387A1 A decompression device for suction pumps |
| 10/22/1991 | US5059100 Discharge line restraint |
| 10/22/1991 | CA1291093C Casing for hermetically encapsulated small refrigerators |
| 10/16/1991 | EP0451410A1 Refrigeration Compressor |
| 10/16/1991 | EP0451230A1 Compressor for domestic refrigerators. |
| 10/16/1991 | CN1055412A Decompression device for suction pumps |
| 10/16/1991 | CN1014344B Foreign particles trap for compressor |
| 10/15/1991 | US5056991 Cryogas pump |
| 10/15/1991 | US5056601 Air compressor cooling system |
| 10/09/1991 | EP0450847A1 Refrigerant compressor |
| 10/09/1991 | EP0450153A2 Hermetic terminal with electrically insulating anti-tracking cap |
| 10/08/1991 | US5055010 Suction baffle for refrigeration compressor |
| 10/02/1991 | EP0448863A1 Motor cover assembly and method |
| 10/02/1991 | CN1055041A Wobble plate type refrigerant compressor having ball-and-socket joint lubricating mechanism |
| 10/01/1991 | US5052903 Compressor housing having a structure for preventing slippage of vibroisolating members |
| 10/01/1991 | US5052530 Vibration absorbing mechanism for an automobile air conditioning compressor |
| 10/01/1991 | US5052434 Valve, especially for compressors |
| 09/25/1991 | EP0448535A1 A seal device |
| 09/25/1991 | EP0447607A2 Hermetic terminal with terminal pin assemblies having fusible links and motor compressor unit including same |
| 09/24/1991 | US5052041 Silencer |
| 09/24/1991 | US5051076 Two-cylinder-type rotary compressor system having improved suction pipe coupling structure |
| 09/24/1991 | US5051073 Bicycle pump |
| 09/24/1991 | US5051072 Gas removable pump for liquid |
| 09/24/1991 | US5051069 Multi-cylinder refrigerant gas compressor with a muffling arrangement |
| 09/24/1991 | US5050892 Sealing arrangement for piston in compressor |
| 09/24/1991 | CA1289479C Vacuum pump equipped with filter for the lubricating oil |
| 09/23/1991 | CA2038766A1 Seal device |
| 09/18/1991 | EP0447027A1 An air conditioning compressor |
| 09/12/1991 | DE4029372A1 Compressor plant using very cold air - with provision of filter combination to remove ice crystals |
| 09/10/1991 | US5046935 Compressor with reduced vibrations |
| 09/10/1991 | US5046930 Connecting rod cooling and lubrication |
| 09/10/1991 | US5046929 Seal compressor |
| 09/10/1991 | US5046927 Wobble plate type variable capacity compressor with a capacity detector |
| 09/10/1991 | US5046921 Moisture-removal device for a compressed air system |
| 09/04/1991 | CN1013793B Protector for enclosed electric-motored compressor |
| 08/29/1991 | DE4006156A1 Piston compressor for compressed air in vehicle - incorporates oil entrapment chamber around piston |
| 08/28/1991 | CN1054116A Valve discharge mechanism of refrigerant compressor |
| 08/22/1991 | DE4004482A1 Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryer |
| 08/14/1991 | EP0441026A1 Compressor discharge gas sound attenuation |
| 08/14/1991 | DE4003888A1 Swashplate-driven piston compressor - has resilient connection between swashplate and piston |
| 08/13/1991 | US5039285 Lubrication system of connecting rod, piston, and wrist pin for a compressor |
| 08/13/1991 | US5038891 Refrigerant compressor |
| 08/08/1991 | DE3645083C2 Sound dampener for use in refrigeration compressor |
| 08/06/1991 | US5036880 High efficiency plate valve for reciprocating compressor |
| 07/31/1991 | EP0438922A1 Refrigerant compressor for HFC 134a |
| 07/31/1991 | EP0438835A2 Refrigeration station |
| 07/31/1991 | EP0318509B1 Axial bearing device |
| 07/31/1991 | CN1013396B Improvement in reciprocating piston compressor for small refrigerating machines and assembly method therefor |
| 07/30/1991 | US5035440 Pump |
| 07/30/1991 | US5035050 Method of installing a valve assembly in a compressor |
| 07/24/1991 | EP0438243A1 Seal for connecting a tube to a housing member and method for forming same |
| 07/24/1991 | EP0438055A1 A valve plate for a reciprocating piston type compressor |
| 07/24/1991 | EP0437677A1 Lubrication system of connecting rod, piston, and wrist pin for a compressor |
| 07/23/1991 | US5033944 Lubricant circuit for a compressor unit and process of circulating lubricant |
| 07/23/1991 | US5033941 Method for assembling rotors without fixtures |
| 07/23/1991 | US5033940 Reciprocating high-pressure compressor piston with annular clearance |
| 07/23/1991 | CA1286729C Thermal electric vapor trap arrangement and method |
| 07/19/1991 | CA2026996A1 Lubrication system of connecting rod, piston, and wrist pin for a compressor |
| 07/19/1991 | CA2024119A1 Connecting rod cooling and lubrication |
| 07/17/1991 | EP0437314A1 Valved discharge mechanism in a refrigerant compressor |
| 07/10/1991 | CN1013142B Controlling valve of compressor |
| 07/09/1991 | US5030065 Reciprocating compressor |
| 07/09/1991 | CA1285849C Valve component for a frictionless guided valve |
| 07/03/1991 | CN1013048B Compressor with radial bearing for supporting drive shaft |
| 07/02/1991 | US5027754 Non-return valve of the flap type for flow concentration |
| 06/26/1991 | EP0434607A1 Piston compressor of the horizontal type |
| 06/26/1991 | EP0434188A1 Crankcase oil separator |
| 06/26/1991 | EP0107728B2 Compressor unit with an oil slinger device |
| 06/25/1991 | US5025828 Valve assembly for a piston compressor |
| 06/12/1991 | EP0431259A2 Hermetic compressor |
| 06/11/1991 | US5022833 Single piece gasket valve plate assembly |
| 06/11/1991 | US5022832 Ring valve type air compressor |
| 06/11/1991 | US5022313 Composite piston assembly for automotive air conditioning compressor |
| 06/06/1991 | DE3940099A1 Lamellar valve structure - comprising two housing sections with intermediate flexible elastic seal fixed between them comprising plastic sheet |
| 06/05/1991 | EP0430790A1 Silent hermetic motor-compressor |
| 06/05/1991 | EP0430636A2 Gas removable pump for liquid |
| 06/05/1991 | CN1051963A Oil reclaim system |
| 06/04/1991 | US5020973 Air compressor shroud |
| 06/02/1991 | CA2031176A1 Low-noise hermetic compressor unit |
| 05/29/1991 | EP0429208A2 Fluid compressing apparatus |
| 05/28/1991 | CA2030493A1 Gas removable pump for liquid |
| 05/28/1991 | CA1284479C Fluid control valve |
| 05/22/1991 | EP0428473A1 Oil reclaim system |
| 05/21/1991 | US5016524 Sealing arrangement for a piston in a compressor |
| 05/15/1991 | CN2077044U Automatic drainage device of air compressor cooler |
| 05/14/1991 | US5015441 Anti-corrosion method of air compression device and anti-corrosion air compression device |
| 05/14/1991 | US5015155 Motor cover assembly and method |
| 05/08/1991 | EP0426223A1 Non-return valve of the flap type for flow concentration |
| 05/07/1991 | US5012896 Lubricating system for rotary horizontal crankshaft hermetic compressor |
| 05/07/1991 | US5012652 Crankcase heater control for hermetic refrigerant compressors |
| 05/07/1991 | CA1283774C Piston ring manufacturing method |
| 05/02/1991 | DE4033818A1 Plastics resin relief valve for gas compressor - incorporates hollow circular contg. attached to bolt |
| 05/01/1991 | CN1051080A Compressor system with demand cooling |
| 04/30/1991 | US5011519 In-line filter and trap structure device for compressed air |
| 04/30/1991 | US5011388 Oil-free screw compressor apparatus |
| 04/24/1991 | EP0424310A1 Piston compressor having pistonrod guide bearings |
| 04/24/1991 | EP0423976A1 Compressor refrigeration system with demand cooling |