Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928)
06/2003
06/11/2003CN1423055A Revolving compressor, its manufacturing method and defrosting device using said compressor
06/05/2003US20030101740 Hybrid compressor device
06/04/2003EP1316730A2 Rotary compressor
06/04/2003EP1316729A2 Gas compressor
06/04/2003CN1422364A Motor protector on non-orbiting scroll
06/04/2003CN1421611A Mixed compressor apparatus
06/04/2003CN1421610A 气体压缩机 Gas compressor
05/2003
05/28/2003EP1314890A2 Control system for vacuum pump
05/28/2003CN1420330A Defrosting device of refrigerant loop and rotary compressor for refrigerant loop
05/27/2003US6568197 Refrigerating unit
05/22/2003WO2003042542A1 Tempering method for a screw-type vacuum pump
05/22/2003US20030094004 Adaptive control for a cooling system
05/22/2003CA2463957A1 Cooling method for a screw-type vacuum pump
05/21/2003EP1312880A2 Rotary compressor and refrigeration circuit
05/21/2003CN1109198C Vortex type machine
05/20/2003US6565339 Abrasion resistance structure of scroll compressor
05/15/2003WO2003040568A1 Vacuum pump
05/15/2003US20030089121 Method and apparatus for variable frequency controlled compressor and fan
05/15/2003US20030089119 Diagnostic system and method for a cooling system
05/15/2003CA2466571A1 A vacuum pump
05/14/2003CN1108453C Screw gas compressor
05/13/2003US6561766 Oil free screw compressor operating at variable speeds and control method therefor
05/13/2003US6560984 Compressor for a system for air-conditioning the passenger compartment of a motor vehicle
05/08/2003US20030086795 Mechanical pumps
05/08/2003US20030084672 Refrigeration system and method for controlling defrost
05/06/2003US6558126 Compressor utilizing low volt power tapped from high volt power
05/01/2003WO2003036090A1 Compressor protection module and system and method incorporating same
04/2003
04/24/2003US20030077193 Reverse rotation brake for scroll compressor
04/24/2003US20030077179 Compressor protection module and system and method incorporating same
04/24/2003US20030074910 System for controlling starting of air conditioner and control method thereof
04/23/2003EP1304484A2 Vacuum pump
04/23/2003CN1412442A 机械泵 Mechanical pump
04/23/2003CN1106504C Scroll machine with reverse rotation sound attenuation
04/22/2003US6551084 Screw rotor machine having means for axially biasing at least one of the rotors
04/22/2003US6551069 Compressor with a capacity modulation system utilizing a re-expansion chamber
04/22/2003US6550260 Vibration detection in a transport refrigeration system through current sensing
04/22/2003US6550258 Pre-start bearing lubrication for refrigeration system compressor
04/17/2003WO2003031821A1 Screw type vacuum pump
04/17/2003US20030072651 Method and apparatus for controlling vacuum pump to stop
04/17/2003US20030070441 Control system of degree of superheat of air conditioner and control method thereof
04/16/2003CN1410746A Method of detecting vibration by current sensing for use in transporting refrigerating system
04/10/2003US20030068233 Device and method for reducing vacuum pump energy consumption
04/09/2003EP1300591A2 Mechanical pump with integrated flame arrester
04/09/2003CN1409015A Vortex compressor with variable volume
04/09/2003CN1105243C 涡旋式流体机械 The scroll-type fluid machine
04/09/2003CN1105043C Protecting device for car air conditioner
04/08/2003US6544017 Reverse rotation brake for scroll compressor
04/08/2003US6543243 Hybrid compressor
04/03/2003US20030063983 Variable-capacity scroll-type compressor
04/03/2003US20030063982 Diagnostic system for a compressor
04/03/2003US20030061825 Vibration detection in a transport refrigeration system through current sensing
04/02/2003EP1297399A1 Fluid control apparatus and method
04/02/2003CN1104606C Seal compressor and refrigeration air-condition device using said compressor
04/01/2003US6540484 Scroll compressor with thermostat mounted in non-orbiting scroll
03/2003
03/27/2003US20030056534 Refrigerating device
03/19/2003EP1293674A1 Scrawl compressor
03/19/2003CN1403713A Scroll compressor with antireversing device
03/18/2003US6533552 System and methods for controlling rotary screw compressors
03/12/2003EP0843098B1 Scroll compressor
03/12/2003CN1402814A Multistage compressor unit and method for regulating such multistage compressor unit
03/12/2003CN1401909A Swirl compressor
03/12/2003CN1401907A Variable displacement controlling device for reducing swirl compressor
03/12/2003CN1401906A Wear-resistant structure of swirl compressor
03/11/2003US6532433 Method and apparatus for continuous prediction, monitoring and control of compressor health via detection of precursors to rotating stall and surge
03/11/2003US6530753 Screw compressor with a fluid contracting bypass
03/11/2003US6530426 Motor drive-control device
03/11/2003US6530365 Fluid displacement pump with backpressure stop
03/11/2003US6530240 Control method for mixed refrigerant based natural gas liquefier
03/06/2003WO2003019011A1 Method for the protection of a volumetric liquid-injected compressor
03/06/2003WO2003019010A1 Method for the protection of a volumetric liquid-injected compressor
03/06/2003US20030044295 Device for regulating compressors or aspirators
03/05/2003EP1288500A2 A device for regulating compressor or aspirators
03/05/2003EP1287298A1 Control system of degree of superheat of air conditioner and control method thereof
03/05/2003EP1287296A1 System for controlling starting of air conditioner and control method thereof
03/05/2003EP1287295A1 Control system for starting of air conditioner and control method thereof
03/04/2003US6529590 Systems and methods for remotely controlling a machine
03/04/2003US6526772 Apparatus and method for controlling electric compressor
02/2003
02/27/2003WO2002066906A3 Hydristor heat pump
02/27/2003US20030039570 Variable quantity control apparatus for variable radius type scroll compressor
02/27/2003US20030039550 Method and control system for controlling multiple throttled inlet rotary screw compressors
02/26/2003EP1286052A2 Scroll compressor
02/26/2003EP1286051A2 Scroll compressor having reversion preventing device
02/26/2003EP0996824B1 Single-source gas actuation for screw compressor slide valve assembly
02/26/2003EP0975875B1 Vacuum pump system fitted with a liquid mechanical pump
02/26/2003CN1102205C Whirl type air compressor
02/25/2003US6525505 Device for driving an air-conditioning compressor
02/20/2003WO2002101242A3 Compressor with a capacity modulation system utilizing a re-expansion chamber
02/20/2003US20030035745 Scroll compressor having reversion preventing device
02/20/2003US20030035738 Roots vacuum pump
02/20/2003US20030035736 Scroll compressor
02/20/2003US20030033823 Digital scroll condensing unit controller
02/19/2003CN1397736A Electric compressor and its control method
02/18/2003US6520205 Compressor unloader system
02/18/2003US6519958 Control system for starting of air conditioner and control method thereof
02/11/2003US6517325 Air compressor and method of operating the same
02/11/2003US6516622 Method and apparatus for variable frequency controlled compressor and fan
02/11/2003CA2254057C Compressor having capacity-controlling mechanism with abrasion-free cylinder
02/06/2003US20030026720 Abrasion resistance structure of scroll compressor
01/2003
01/30/2003WO2003008808A1 Screw compressor
01/30/2003WO2002044533A3 Vane compressor or expander
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