Patents
Patents for F04C 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups (16,981)
09/1979
09/18/1979CA1062483A1 Cooling system for hermetic compressor
08/1979
08/22/1979EP0003572A1 Sliding vane pump
08/14/1979US4164384 Rotary vane vacuum pump with filter means for inlet
06/1979
06/28/1979WO1979000364A1 Valve
06/12/1979CA1056355A1 Method and device for driving liquid from a liquid separator
06/05/1979US4157234 Scroll-type two stage positive fluid displacement apparatus
05/1979
05/08/1979US4153395 Compressors
05/08/1979CA1054114A1 Rotary compressor
05/01/1979US4152100 Rotary piston compressor having pistons rotating in the same direction
04/1979
04/24/1979US4150926 Rotary piston compressor with transfer flow pockets in housing
04/17/1979US4149834 Delivery valve, especially for rotary piston compressors
04/17/1979CA1052588A1 Method and means for cooling the oil in a system including a compressor with oil supply, as well as such systems
04/10/1979CA1052112A1 Combination motor cooler and storage coil for heat pump
04/10/1979CA1052111A1 Combination motor cooler and storage coil for heat pump
03/1979
03/13/1979US4144002 Rotary compressor
03/06/1979US4142765 Rotor bearing assembly for rotary gas machine
02/1979
02/27/1979US4141677 Scroll-type two stage positive fluid-displacement apparatus with intercooler
02/06/1979CA1047933A1 System for liquid cooling of a rotor of a rotary mechanism
01/1979
01/23/1979US4135865 Rotary vane compressor with outlet check valve for start-up pressure on lubricant system
01/10/1979EP0000131A1 Process and apparatus for the lubrication of compressors
11/1978
11/28/1978US4127369 Pressure valve for a rotary piston compressor
10/1978
10/31/1978US4123203 Multistage helical screw compressor with liquid injection
10/24/1978CA1041024A1 Oil separator
10/03/1978US4118157 Rotary compressor
09/1978
09/12/1978US4112701 Method and means for cooling the oil in a system including a compressor with oil supply, as well as such systems
08/1978
08/15/1978US4106304 Thermodynamic compressor
08/08/1978US4105375 Rotary piston compressor
07/1978
07/11/1978US4099896 Rotary compressor
07/04/1978US4098487 Device for controlling oil injection to a screw compressor
05/1978
05/30/1978US4091638 Cooling system for hermetic compressor
05/09/1978US4088428 Discharge valve assembly for a compressor
05/09/1978US4088426 Sliding vane type of compressor-expander having differential eccentricity feature
04/1978
04/25/1978US4086041 Rotary compressor comprising improved rotor lubrication system
04/25/1978US4086040 Rotary compressor comprising improved rotor lubrication system
04/11/1978US4083658 Liquid ring compressor including a calibrated gas input opening
03/1978
03/21/1978US4080119 Method and device for draining oil from the gear case of a compressor
03/07/1978US4077751 End housing clamps for rotary mechanisms
02/1978
02/28/1978US4076461 Feedback control system for helical screw rotary compressors
02/14/1978US4073607 Gas compressor system
02/07/1978US4072451 Power transmission
01/1978
01/31/1978US4071306 Rotary vane compressor with relief means for vane slots
01/24/1978US4070166 Method and device for driving liquid from a liquid separator
01/17/1978US4068987 Pneumatic motor with muffled exhaust
01/17/1978US4068981 Blade-type rotary compressor with full unloading and oil sealed interfaces
12/1977
12/20/1977US4063855 Compressor capacity and lubrication control system
12/13/1977US4062199 Refrigerating apparatus
11/1977
11/15/1977US4058361 Refrigerant compressor having indirect outlet connection
10/1977
10/18/1977US4054401 Vacuum pump with lubricant control system to interrupt lubricant flow upon loss of pump pressure
09/1977
09/27/1977US4050855 Dry air rotary pump or compressor
09/20/1977US4049410 Gas compressors
09/20/1977US4049401 Apparatus for separating suspensions of liquids in gas
09/06/1977US4045975 Combination motor cooler and storage coil for heat pump
09/06/1977US4045974 Combination motor cooler and storage coil for heat pump
08/1977
08/30/1977USRE29378 Leakage prevention
07/1977
07/12/1977US4035114 Method for reducing power consumption in a liquid-cooled rotary compressor by treating the liquid
05/1977
05/24/1977US4025244 Rotary compressor of liquid-cooled type provided with means for adjusting amount of liquid and volume of gas
05/24/1977US4025242 Vacuum pump oiling
05/03/1977US4020642 Compression systems and compressors
03/1977
03/08/1977US4011032 System for liquid cooling of a rotor or a rotary mechanism
02/1977
02/08/1977US4006602 Refrigeration apparatus and method
01/1977
01/25/1977US4004864 Method for modifying a compressing apparatus unit
12/1976
12/21/1976US3998243 Flapper valve for a rotary compressor
11/1976
11/02/1976US3989490 Oil separator, especially for a cooling medium compressor
10/1976
10/26/1976US3988080 Rotary vane compressor with outlet pressure biased lubricant
10/19/1976US3986799 Fluid-cooled, scroll-type, positive fluid displacement apparatus
08/1976
08/31/1976US3977816 Mechanically driven compressor for air conditioning devices, particularly in vehicles
08/17/1976US3975123 Shaft seals for a screw compressor
08/10/1976US3973881 Vane-type pump or motor with undervane fluid bias
07/1976
07/06/1976US3967466 Air conditioning system having super-saturation for reduced driving requirement
05/1976
05/11/1976US3955905 Sliding-vane pump
03/1976
03/30/1976US3947078 Rotary screw machine with rotor thrust load balancing
03/23/1976US3945464 Oil-injection-type rotary compressor having a centrifugal water separator
03/23/1976US3945220 Injection cooling arrangement for rotary compressor
03/23/1976US3945219 Method of and apparatus for preventing overheating of electrical motors for compressors
03/23/1976US3945216 Refrigeration systems
03/02/1976US3941522 Modified rotary compressor yielding sinusoidal pressure wave outputs
03/02/1976US3941520 Method and device for injection of liquid
02/1976
02/03/1976US3936249 Rotary compressor of oil cooling type with appropriate oil discharge circuit
02/03/1976US3936238 Rotary compressors
01/1976
01/13/1976US3931718 Refrigerant screw compression with liquid refrigerant injection
01/06/1976US3930902 Nitrified sintered alloy