Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 27 - Multi-cylinder pumpsspecially adapted for elastic fluids and characterised by number or arrangement of cylinders
Patents for F04B 27 - Multi-cylinder pumpsspecially adapted for elastic fluids and characterised by number or arrangement of cylinders (7,781)
11/1999
11/02/1999US5974946 Swash plate type compressor using swash plate made of highly wear-resistant material
10/1999
10/27/1999EP0952412A2 Refrigerating system and method of operating the same
10/27/1999EP0952346A2 Swash plate compressor with fixed or variable capacity
10/27/1999EP0952345A2 Control valve for variable displacement compressors and method for varying displacement
10/27/1999EP0952344A2 Flow control valve for a variable displacement refrigerant compressor
10/27/1999EP0952343A2 Variable capacity compressor
10/27/1999EP0952342A2 Piston for compressors
10/27/1999EP0952341A2 Piston guide for a swash plate compressor
10/27/1999EP0952340A2 Piston for a swash plate refrigerant compressor
10/27/1999EP0952339A2 Piston for a swash plate compressor
10/26/1999US5971716 Variable displacement compressor having a muffler and a capacity control valve mounted thereto
10/14/1999DE19913154A1 Wobble plate Stirling cooler with reduced size and weight and increased cooling performance
10/14/1999DE19911635A1 Compressor with variable operating volume for e.g. car air conditioning
10/12/1999US5964578 Control valve in variable displacement compressor
10/07/1999WO1999050557A1 Swash plate with cobalt-tin alloy coating
10/07/1999WO1999050556A1 Swash plate of swash plate compressor
10/07/1999DE19809768A1 Oil supply device for coolant compressor without oil pump
10/07/1999CA2323806A1 Swash plate with cobalt-tin alloy coating
10/06/1999EP0947697A2 Refrigerant suction structures for compressors
10/06/1999EP0947696A1 Swash plate compressor in which pressure in a crank chamber can be readily and rapidly adjusted
10/06/1999EP0947695A2 Control valve for a variable displacement swash plate compressor
10/06/1999EP0947694A2 Control valve for a variable displacement swash plate compressor
10/06/1999CN1230634A Refrigerant suction structures for compressors
10/05/1999US5960542 Method of producing piston for swash plate compressor
09/1999
09/30/1999DE19912006A1 Compressor, particularly for motor vehicle air-conditioning plant
09/29/1999EP0945618A2 Displacement control valve for use in a variable displacement compressor
09/29/1999EP0945617A2 Displacement control valve for use in variable displacement compressor
09/29/1999EP0945616A2 Swash plate type compressor having an improved torque transmission mechanism between a shaft and a swash plate
09/29/1999EP0945615A2 Compressor piston with cast barrel
09/28/1999US5957666 Tandem-type pump having an auxiliary pump
09/22/1999EP0943802A2 Variable capacity swash-plate compressor with oil separator
09/22/1999EP0943801A1 Swash plate compressor
09/22/1999EP0943800A1 Swash plate compressor
09/21/1999US5953980 Piston type compressors
09/21/1999US5953979 Variable capacity wobble plate compressor
09/15/1999EP0942170A1 Gas compressor
09/15/1999EP0942169A2 Crankcase pressure control for a swash plate compressor
09/15/1999CN1228510A Pressure-pulsation-reducing compressor
09/14/1999US5950521 Swash-plate compressor capable of insuring sufficient lubrication between a piston and a shoe slidably interposed between the piston and a swash plate
09/14/1999US5950520 Swash plate compressor
09/14/1999US5950480 Method for manufacturing shoe for swash plate-type compressor
09/08/1999EP0940609A2 Shaft sealing structure
09/08/1999EP0940583A2 Variable displacement pump control system
09/08/1999EP0940581A2 Pressure pulsation muffler for the discharge valve of a compressor
09/08/1999EP0940579A2 Assembly of pistons in a swash-plate refrigerant compressor
09/08/1999CN1227898A Shaft sealing structure
09/07/1999US5947698 Piston type compressor
09/07/1999US5947002 Variable capacity wobble plate compressor
09/01/1999EP0939224A1 Shoe and method for manufacturing the same
08/1999
08/31/1999US5944491 Piston-type compressor with improved shock absorption during start up
08/31/1999US5944302 Linear compressor including reciprocating piston and machined double-helix piston spring
08/31/1999US5943943 Reciprocating compressor
08/31/1999US5943941 Reciprocating compressor
08/26/1999DE19907492A1 Carbon dioxide compressor for air conditioning systems in which narrow oil passages are avoided
08/26/1999DE19906550A1 Refrigerant compressor for refrigerators
08/25/1999CN1226667A Refrigerant compressor with improved discharge valve assembly
08/24/1999US5941693 Swash-plate compressor with grooves for lubricating oil
08/24/1999US5941161 Piston type compressor
08/24/1999US5941160 Pistons for compressors and method and apparatus for coating the pistons
08/24/1999US5941157 Variable capacity swash plate compressor
08/24/1999CA2012776C Reciprocating compressor
08/19/1999WO1999041501A1 Low noise high performance vacuum pump
08/18/1999CN1225980A Variable displacement compressor
08/17/1999US5937735 Swash-plate compressor having a thrust race with a radial flange insuring supply of a lubricating oil to a drive shaft bearing
08/17/1999US5937731 Variable capacity swash plate compressor
08/17/1999CA2176909C Refrigerant compressor with rotation detecting means
08/11/1999EP0935107A2 Method and apparatus for controlling variable displacement compressor
08/11/1999CN1225422A Refrigerant compressor with cooling means
08/11/1999CN1225420A Energy-saving, double-cylinder and electromagnetic air compressor
08/10/1999US5934360 Cooling and heating system for vehicle
08/10/1999US5934172 Swash plate type compressor having an improved piston rotation regulating-structure
08/10/1999US5934170 Piston mechanism of fluid displacement apparatus
08/04/1999CN1225155A Tidal current energy converter
08/04/1999CN1224805A Shape of suction hole and discharge hole of refrigerant compressor
08/03/1999US5931645 Multistage swash plate compressor having two different sets of cylinders in the same housing
08/03/1999US5931079 Variable capacity swash plate compressor
08/03/1999CA2138541C Rotary power device
07/1999
07/28/1999EP0931939A2 Vacuum pump
07/20/1999US5924296 Motor vehicle air-conditioning apparatus with engine speed control
07/14/1999EP0928898A2 Control valve for variable displacement compressors
07/14/1999EP0928897A2 Hinge for a swash plate
07/14/1999EP0928896A2 Compressor swash plate fixed by rivets
07/14/1999CN1222645A Compressor
07/13/1999US5921756 Swash plate compressor including double-headed pistons having piston sections with different cross-sectional areas
07/08/1999WO1999034115A1 Pump
06/1999
06/30/1999EP0926346A2 Compressor
06/30/1999EP0926342A2 Seal mechanism protector for compressors
06/30/1999EP0926341A2 Oil recovery device for compressors
06/30/1999EP0926340A2 Coating of a swash plate bearing
06/30/1999EP0926339A2 Coating of a swash plate pivot joint
06/30/1999CN1221073A Oil recovery device for compressors
06/29/1999US5915928 Compressor having a swash plate with a lubrication hole
06/24/1999DE19855192A1 Single-head piston swashplate compressor
06/23/1999CN1220344A Variable displacement type compressor
06/17/1999WO1999030036A1 Reciprocating compressor
06/17/1999WO1999030035A1 Variable displacement compressor
06/17/1999DE19840941A1 Compressor, particularly for motor vehicle air-conditioning plant
06/15/1999US5911809 Cobalt-tin alloy coating on aluminum by chemical conversion
06/10/1999WO1999028628A1 Reciprocating compressor
06/10/1999WO1999028627A1 Variable capacity swash plate type clutchless compressor
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