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)
01/2013
01/02/2013CN1900526B Capacity modulated scroll machine
01/02/2013CN102121473B Scroll machine with continuous capacity modulation
01/02/2013CN102052316B Outer rotor vortex permanent magnet frequency conversion screw compressor system
12/2012
12/27/2012DE102011084811B3 Gaseinlassventil für einen Kompressor, Kompressor mit einem derartigen Gaseinlassventil sowie Verfahren zum Betreiben eines Kompressors mit einem derartigen Gaseinlassventil Gas inlet valve for a compressor, the compressor having such a gas inlet valve and method of operating a compressor with such a gas inlet valve
12/26/2012CN202628529U Slide valve, slide valve adjusting mechanism and screw rod compressor with slide valve adjusting mechanism
12/26/2012CN202628525U Slide valve for screw compressor and screw compressor comprising slide valve
12/26/2012CN202628524U Frequency conversion control sliding-vane air compressor with clutch
12/26/2012CN202628523U Energy-saving device of screw air compressor
12/26/2012CN202628522U Alarm automobile vacuum pump
12/26/2012CN202628521U Sliding vane air compressor
12/26/2012CN202628520U Rotary vane type vacuum pump unit for electric vehicle
12/26/2012CN102840137A Steam drive type compression device
12/26/2012CN102840136A Steam drive type compression device
12/20/2012DE102011078816B3 Electrically driven vacuum pump, particularly vane cell vacuum pump for motor vehicle, has control and monitoring unit, where opening is formed downstream of check valve, and opening is enclosed by refractory material
12/19/2012EP2535587A1 Inverter-integrated electric compressor
12/13/2012WO2012169181A1 Rotary compressor
12/12/2012CN202597105U Oil-saving step-less adjusting system for mobile screw air compressor
12/12/2012CN102817847A Controller software system of screw air compressor
12/12/2012CN102817844A Screw compressor
12/06/2012WO2012164466A1 Rotary vacuum pump, in particular for motor vehicles, and related control method
12/05/2012EP2530412A1 Compressor diagnostic and protection system
12/05/2012CN202579190U Compressor and air-conditioner
12/05/2012CN102812249A Improved Fluid Compressor And/or Pump Arrangement
12/05/2012CN102812248A Fluid Compressor Or Pump Apparatus
12/05/2012CN102808769A Novel air compressor
11/2012
11/29/2012WO2012161525A2 Intelligent air compressor system
11/29/2012WO2012160832A1 Refrigeration cycle device
11/29/2012WO2012159985A1 Pump
11/29/2012CA2836502A1 Pump
11/28/2012EP2527656A2 Method for calculating the probability of moisture build-up in a compressor
11/28/2012CN202560565U Coal mine air compressor control system
11/28/2012CN102803732A 单螺杆压缩机 Single screw compressor
11/28/2012CN102797668A Apparatus for controlling compressor
11/21/2012CN202545254U Volume changing device for adjusting variable volume
11/15/2012WO2012153521A1 Refrigeration cycle device
11/15/2012WO2011151553A3 Valve arrangement for a scroll refrigeration compressor
11/15/2012DE102012200423A1 Ansteuermodul für eine elektrische Vakuumpumpe Control module for an electric vacuum pump
11/14/2012CN1632317B Compressor with control and protection system
11/14/2012CN101815872B Refrigeration compressor with variable speed spirals
11/14/2012CN101682265B A control system for a compressor actuated by an electric motor
11/07/2012CN202520555U Rotary machine
11/07/2012CN102767521A Oil amount adjusting method and system of oil jet screw compressor, and oil jet screw compressor
11/07/2012CN102032181B Scroll compressor with axial displacement regulation
10/2012
10/31/2012EP2518322A1 Single-screw compressor
10/31/2012EP2518321A1 Vane compressor
10/31/2012CN202510372U Twin-screw air compressor
10/31/2012CN202510371U Starting and stopping control system
10/24/2012CN102748293A Variable-stage or variable-cylinder variable displacement compressor and control method thereof
10/24/2012CN102748292A Constant-pressure variable intelligent air compressor
10/24/2012CN102748291A Energy saver system for air compressor
10/17/2012CN102734982A Direct sewage source heat pump
10/17/2012CN102734165A Capacity-controlled rotary compressor
10/17/2012CN102734164A Intelligent control system of air-cooled screw air compressor
10/11/2012WO2012138522A2 System and method for monitoring pump lining wear
10/11/2012US20120258000 System and Method for Monitoring Pump Lining Wear
10/11/2012CA2831883A1 System and method for monitoring pump lining wear
10/10/2012CN202485297U Internal pressure monitoring type variable frequency compression refrigeration power saving system
10/10/2012CN102725600A Crankcase heater systems and methods for variable speed compressors
10/10/2012CN102720672A Pressure sensor for hermetic machine
10/09/2012US8282369 Variable displacement vane pump with defined cam profile
10/04/2012WO2012129769A1 Centralized monitoring device of air compressor
10/04/2012DE102012006777A1 Regler, insbesondere Ansaugregler für Kompressoren Regulators, particularly suction regulator for compressors
10/04/2012DE102012006363A1 Luftregler für Kompressoren, insbesondere Schraubenkompressoren Air regulator for compressors, screw compressors in particular
10/03/2012EP2505885A2 Relief valve for compressor
10/03/2012EP2505841A2 Screw compressor and chiller unit using same
10/03/2012CN102705237A Structure for adjusting volumes of pressure cavities in double-stage compressor and method of structure
10/02/2012CA2684716C Portable air compressor/generator control method and system
09/2012
09/27/2012WO2012127862A1 Scroll compressor
09/26/2012EP2501936A2 Method and device for pumping with reduced power use
09/26/2012CN101160467B Rotary fluid machine
09/20/2012WO2012124277A1 Vacuum pump, vacuum exhaust device, and method for operating vacuum pump
09/19/2012EP2500571A1 Rotary vane compressor
09/19/2012EP2499373A1 Improved fluid compressor and/or pump arrangement
09/19/2012EP2499372A1 Fluid compressor or pump apparatus
09/19/2012CN202441605U Minimum-pressure valve of high-pressure screw compressor
09/19/2012CN202441604U Frequency conversion type screw air compressor system
09/19/2012CN202441601U Variable capacity compressor and air conditioner as well as heat pump water heater with the same
09/19/2012CN1987107B Oil-cooling screw compressor
09/19/2012CN102678562A Double sliding valve internal volumetric ratio stepless adjusting device for single-screw refrigeration compressor
09/13/2012WO2012120808A1 Rotary compressor
09/13/2012DE102012203497A1 Elektrischer Kompressor The electric compressor
09/13/2012DE102012203494A1 Elektrischer Kompressor The electric compressor
09/12/2012EP2497955A1 Heat pump device, two-stage compressor, and method of operating heat pump device
09/12/2012CN202431524U Slip sheet eccentric automatic control mechanism
09/12/2012CN101782070B Scroll compressor
09/05/2012CN202417944U Single-stage medium-pressure single screw compressor with safety device
09/05/2012CN102656367A Single-screw compressor
09/04/2012US8257057 Variable displacement vane pump
08/2012
08/30/2012WO2012113047A2 A system and method of remotely connecting and disconnecting the auxiliary power supply of a frequency inverter for variable capacity compressor employed in cooling systems
08/23/2012DE102011012126A1 Control mechanism arrangement e.g. rotary valve, for internal control of liquid flow in rolling piston compressor, has annular surface sliders moved on shafts or axles for controlling flow of compressed medium
08/22/2012CN202391739U Variable-capacity compressor
08/22/2012CN102644594A Double-cylinder type rotary compressor and control method for same
08/22/2012CN102644593A Double-cylinder rotary compressor and control method thereof
08/15/2012CN202381337U Control system for scroll compressor based on torque flow intelligent soft measurement
08/15/2012CN202381336U Slide valve position feedback device of helical-lobe compressor
08/08/2012EP2484910A1 Screw compressor
08/08/2012CN202370846U Cylinder for rotary compressor, rotary compressor and air conditioner
08/07/2012CA2637313C Improved compressor device
08/02/2012DE102011088975A1 Verfahren sowie Anordnung zur Regelung einer Vakuum-Pumpe Method and arrangement for controlling a vacuum pump
08/01/2012EP2480840A2 Crankcase heater systems and methods for variable speed compressors
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