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)
08/2010
08/18/2010CN101806298A Oil return monitoring system of compressor and method thereof
08/18/2010CN101424267B Rotary compressor
08/18/2010CN101418800B Control system for intelligent frequency conversion screw air compressor
08/18/2010CN101180467B A control system and method for protection against breakage of lubricant film in compressor bearings.
08/11/2010CN201546958U Screw refrigerating compressor operation status alarm
08/11/2010CN201546957U Screw type natural gas compressor
08/11/2010CN101440811B Lubrication apparatus of horizontal rotary compressor and control method thereof
08/04/2010EP2213879A1 Scroll compressor with three-step capacity control
08/04/2010CN201539406U Double-pump oil supply non-stop switching circuit of compressor
08/04/2010CN201539404U Consumption-reducing variable-displacement rotary compressor
08/04/2010CN101796299A Capacity modulated compressor
08/04/2010CN101166902B Pumping system and method of operation
07/2010
07/29/2010WO2010085593A2 Scroll compressors with different volume indexes and systems and methods for same
07/29/2010WO2010052060A3 Method for operating an oil-tight vacuum pump and oil-tight vacuum pump
07/28/2010CN201535248U 一种变容量压缩机 A variable displacement compressor
07/28/2010CN201535247U 旋片式真空泵自动充气装置 Rotary vane vacuum pump automatic inflatable devices
07/28/2010CN101787977A Scroll compressor with three-step capacity control
07/28/2010CN101463810B Security self-control apparatus for synthesis gas compressor
07/21/2010CN101782070A Scroll compressor
07/21/2010CN101368569B Independent exhaustion component used for Carroll compressor
07/14/2010EP2206926A2 Scroll compressor
07/14/2010CN101776079A Automatic torque compensation system and automatic torque compensation method
07/13/2010CA2689820A1 Reciprocating pump
07/08/2010WO2010077812A1 Truck trailer refrigeration system
07/08/2010US20100170294 Integrated electric compressor
07/08/2010DE102008063132A1 Vacuum pump type identifying method, involves accelerating rotor element of vacuum pump over preset time interval, determining rotor speed at end of time interval, and determining pump type based on rotor speed and mass-inertia moment
07/07/2010CN1955481B Variable capacity vortex compressor
07/07/2010CN101769255A Long-lifetime compressor
07/07/2010CN101469709B Computer control method for compressor operation remote monitoring
07/01/2010WO2010072808A2 Method for controlling a compressor installation
07/01/2010WO2010072803A1 Simulation-supported method for controlling and regulating compressed air stations
07/01/2010US20100166571 Device for regulating the operating pressure of an oil-injected compressor installation
07/01/2010CA2747066A1 A method for controlling a compressor system
07/01/2010CA2746110A1 Simulation-supported method for controlling and/or regulating compressed air stations
06/2010
06/30/2010EP2202384A1 Fluid machine and refrigeration cycle device
06/30/2010CN201517504U Controllable structure of back pressure gas quality exchange
06/30/2010CN101761478A Scroll compressor
06/24/2010WO2010071379A2 Method and apparatus for controlling screw compressor
06/24/2010WO2010070913A1 Scroll type fluid machine
06/24/2010US20100158710 Scroll compressor
06/23/2010CN201513348U Screw compressor air quantity proportion regulating and controlling system
06/23/2010CN101749222A Multifunctional motor control device
06/16/2010EP2196676A2 Temperature control through pulse width modulation
06/16/2010EP2195540A1 Compressor protection system and method
06/16/2010EP2195539A2 System and method for monitoring overheat of a compressor
06/16/2010CN201507452U Inlet control valve of combined oil-free screw compressor
06/16/2010CN101251110B Automatic control device and control method for multiple overlapping type compressor unit
06/16/2010CN101063450B Compressor with oil bypass
06/10/2010DE102008060539A1 Zweiwellige Vakuumpumpe Double wall vacuum pump
06/09/2010EP2194276A2 Two-shaft vacuum pump
06/09/2010EP2194275A2 Lobe type vacuum pump
06/09/2010CN101725533A Method for starting compressor of air conditioner at low temperature
06/09/2010CN101725527A Scroll compressor
06/09/2010CN101725520A Safe pressure relief device
06/09/2010CN101201050B Rotary compressor, and car air conditioner and heat pump type water heater using the compressor
05/2010
05/27/2010WO2010058182A2 Screw compressor
05/27/2010CA2742729A1 Screw compressor
05/26/2010CN201486862U Internal pressure ratio adjusting device of screw type compressor
05/26/2010CN1526954B 可变容量的旋转压缩机 The variable capacity rotary compressor
05/26/2010CN101713403A Overheat protection device for compressor
05/26/2010CN101713397A Compressor protection and diagnostic system
05/25/2010US7722334 Compressor and overload protecting apparatus
05/20/2010WO2010056002A1 Frequency- variable compressor and control method thereof
05/19/2010CN201474975U Broken-pole protection device of screw pump
05/19/2010CN201474970U Integrated electric scroll compressor assembly for automobile air conditioner
05/19/2010CN101334031B Compressor displacement regulating structure
05/19/2010CN101270749B Oil-free helical lobe compressor rotor anti-seizing protection method and device
05/14/2010WO2010052060A2 Method for operating an oil-tight vacuum pump and oil-tight vacuum pump
05/13/2010US20100119378 Rotary compressor
05/12/2010DE102008057548A1 Verfahren zum Betreiben einer ölgedichteten Vakuumpumpe sowie ölgedichtete Vakuumpumpe A method of operating an oil-sealed vacuum pump and oil-sealed vacuum pump
05/12/2010CN201461412U Air volume and air pressure regulating device of Roots blower
05/12/2010CN201461411U Dual-pressure output control system of screw compressor
05/12/2010CN201461410U programmable controller of screw compressor
05/12/2010CN201461408U DC electric vacuum pump for automobile
05/12/2010CN201461404U Screw compressor for locomotive
05/12/2010CN1952813B An adaptive tuning controller for refrigerant pressure action member and control method thereof
05/12/2010CN1930396B Gas vane pump, and method of operating the pump
05/06/2010US20100111736 Roots-type blower rotor alignment method and apparatus
05/06/2010US20100111709 Compressor protection and diagnostic system
05/06/2010US20100111705 Refrigerant compressor
05/06/2010US20100107669 Three-way solenoid valve, rotary compressor, and refrigeration cycle equipment
05/05/2010CN1761817B Rotary closed type compressor and refrigerating cycle apparatus
05/05/2010CN1607478B An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
05/05/2010CN101052847B Compressor diagnostic and protection system
04/2010
04/29/2010US20100101250 Compressor diagnostic system
04/29/2010DE102008025186B4 Drehkolbenmaschine Rotary engine
04/28/2010CN201443500U Microcomputer automatic inflation control device
04/28/2010CN101699071A Device for monitoring and protecting speed of screw pump
04/14/2010CN201437776U Diesel-saving device for screw compressor driven by diesel engine
04/14/2010CN1878993B Compressor with unloader valve between economizer line and evaporator inlet
04/07/2010CN101691863A Consumption-reducing variable displacement rotary compressor
04/01/2010WO2010035592A1 Screw compressor
04/01/2010US20100080724 Two stage pressure regulation system for variable displacement hydraulic pumps
03/2010
03/31/2010EP2169231A2 Inverter-device built-in type electric compressor and vehicle equipped with the same compressor
03/31/2010CN201433895Y Oil injection flow control valve in screw air compressor
03/31/2010CN201433894Y Variable-frequency screw compressor
03/31/2010CN101684807A Protection device of enclosed type compressor
03/31/2010CN101684800A Rotating type compressor
03/24/2010CN101682265A A control system for a compressor actuated by an electric motor
03/24/2010CN101680567A Electromagnetic three-way valve, rotary compressor, and refrigeration cycle device
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ... 50