| Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928) |
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| 02/01/2012 | CN202132230U 带内置式温度传感器的涡旋压缩机 With built-in temperature sensor scroll compressor |
| 02/01/2012 | CN1865706B 开放式驱动涡旋机 Open the drive scroll machine |
| 02/01/2012 | CN101691863B 一种降耗变排量回转压缩机 One kind of saving variable displacement rotary compressor |
| 01/31/2012 | US8105054 Oil return tube aligned over motor protector in scroll compressor |
| 01/25/2012 | EP2409038A2 Rotary vacuum pump with a device for decoupling the driving motor |
| 01/25/2012 | CN102331124A Control method for preventing multi-unit air conditioner screw compressor from liquid impact |
| 01/25/2012 | CN102331123A Safety control method for lubricating oil of multi-unit air conditioner of screw compressor |
| 01/25/2012 | CN102330687A Method for controlling compressor load during normal operation of screw type compression multi-split air conditioner |
| 01/18/2012 | EP2407669A2 Compressor with suction and discharge pipes |
| 01/18/2012 | EP2407668A2 Scroll compressor |
| 01/18/2012 | CN102326000A Scroll compressors with different volume indexes and systems and methods for same |
| 01/12/2012 | WO2012005497A2 Device and method for controlling compressor, and refrigerator including same |
| 01/11/2012 | CN202108732U Automatic displacement load adjusting system for rotary-vane automobile air conditioner compressor |
| 01/04/2012 | CN202100466U Volume control type rotary compressor |
| 01/04/2012 | CN101826836B Electric signal-based household appliance single-rotor compressor variable frequency controller and implementation method thereof |
| 12/28/2011 | CN202091202U 高速冷镦机专用空压机节能系统 High-speed cold heading machine dedicated air compressor energy saving system |
| 12/28/2011 | CN101512160B 压缩机数据模块 Compressor Data Module |
| 12/21/2011 | CN102287373A 一种螺杆气体增压机 A screw gas turbocharger |
| 12/21/2011 | CN102287372A 螺旋式压缩机及其控制装置 Screw compressors and control devices |
| 12/14/2011 | CN202073784U 汽车空调用一体式直流变频电动涡旋压缩机总成 Automotive air conditioning integrated DC inverter scroll compressor motor assembly |
| 12/14/2011 | CN102278310A 智能调节真空系统 Smart regulation vacuum system |
| 12/08/2011 | WO2011151554A2 Scroll refrigeration compressor |
| 12/07/2011 | EP2392827A1 Scroll compressor |
| 12/07/2011 | EP1158166B1 Scroll type compressor |
| 12/07/2011 | CN202065182U 盾构隧道掘进机用空气压缩机 Shield tunneling machine with air compressor |
| 12/07/2011 | CN102272541A 卡车拖车制冷系统 Truck trailer refrigeration system |
| 12/07/2011 | CN102272456A 用于控制和调节压缩空气站的仿真法 Compressed air is used to control and adjust the station simulation method |
| 12/07/2011 | CN102269165A 一种气液态介质两用的高效无油涡旋压缩机 The gas - liquid medium dual-efficient oil-free scroll compressor |
| 11/30/2011 | EP2389516A2 Scroll compressors with different volume indexes and systems and methods for same |
| 11/30/2011 | CN202056057U 外转子永磁螺杆压缩机的油气分离装置 Oil and gas separation equipment outside the permanent magnet rotor screw compressor |
| 11/30/2011 | CN202056055U 螺杆压缩机的智能微电脑控制系统 Intelligent microcomputer control system screw compressors |
| 11/23/2011 | EP1730406B1 Volumetric screw compressor provided with delivery adjustment device |
| 11/23/2011 | CN102251965A Compressor capable of performing one-stage and double-stage switching, and control method thereof |
| 11/23/2011 | CN101517238B A rotary pump with vanes |
| 11/16/2011 | CN202040084U Energy and internal volume ratio regulating mechanism of built-in type screw compressor of oil cylinder |
| 11/16/2011 | CN202040083U Variable capacity rotary compressor |
| 11/16/2011 | CN101514701B Capacity varying device for a scroll compressor |
| 11/15/2011 | US8057929 Regenerative compressor motor control for a fuel cell power system |
| 11/09/2011 | CN102235361A Method and device for constant pressure control of screw air compressor |
| 11/03/2011 | WO2011134261A1 Screw compressor |
| 11/02/2011 | EP2382382A2 Rotary vane engines with movable rotors,and engine systems comprising same |
| 11/02/2011 | CN1854525B Scroll machine |
| 11/01/2011 | US8047817 Cleaning method of a rotary piston vacuum pump |
| 10/26/2011 | EP2379959A1 Truck trailer refrigeration system |
| 10/26/2011 | CN202017630U Outer rotor vortex permanent-magnetic variable frequency screw compressor |
| 10/20/2011 | WO2011128354A1 Control valve for an oil-injected screw-type compressor |
| 10/19/2011 | EP2378122A2 Dry vacuum pump apparatus and method of cooling the same |
| 10/19/2011 | EP2378063A2 Vacuum pump |
| 10/19/2011 | EP2376784A2 Method for controlling a compressor installation |
| 10/19/2011 | EP2376783A1 Simulation-supported method for controlling and regulating compressed air stations |
| 10/19/2011 | EP1774178B1 System and method to reduce acoustic noise in screw compressors |
| 10/19/2011 | CN102220982A Method and device for compensating torque of single-rotor compressor |
| 10/19/2011 | CN102220980A Dry vacuum pump apparatus and method of cooling the same |
| 10/19/2011 | CN102220961A Air compressor energy-saving and pressure-stabilizing controlling system and air compressor |
| 10/13/2011 | WO2011125652A1 Rotary compressor |
| 10/12/2011 | EP2375076A2 Rotational speed control for a scroll compressor |
| 10/12/2011 | CN102216619A Screw compressor |
| 10/10/2011 | DE202011051012U1 Luftverdichtungsvorrichtung Air compression device |
| 10/06/2011 | WO2011066629A3 Method for controlling a compossed device and compossed device wherein such method is applied |
| 10/06/2011 | WO2010119121A3 Roughing pump method for a positive displacement pump |
| 10/05/2011 | EP2372158A1 Frequency- variable compressor and control method thereof |
| 10/05/2011 | CN102207089A Cooling synergic gas mixing type scroll compressor for heat pump air conditioner of electric automobile |
| 09/29/2011 | WO2011117489A1 Vacuum dispensing unit with automatic detection and control of pressure increases |
| 09/28/2011 | CN201991776U 螺杆泵智能调参伺服控制器 Intelligent servo controller parameter adjustment screw |
| 09/28/2011 | CN102203425A Frequency- variable compressor and control method thereof |
| 09/22/2011 | WO2011114637A1 Single screw compressor |
| 09/22/2011 | WO2011114636A1 Single screw compressor |
| 09/22/2011 | DE10215207B4 Motorgetriebener Kompressor und Verfahren zum Zusammenbau eines motorgetriebenen Kompressors Motor-driven compressor and method for assembling a motor-driven compressor |
| 09/21/2011 | CN102192152A Pressure maintenance valve for semi-seal compressor with oil content |
| 09/09/2011 | WO2011072874A3 Measurement array for a liquid, in particular for use in a milk collection array, and method for operating a milk collection array |
| 09/07/2011 | CN201963549U 吸引器负压的调节装置 Suction negative pressure regulating device |
| 08/31/2011 | CN102168674A Compressor with oil level controlling means |
| 08/30/2011 | US8007248 Engine speed dependent oil pump pressure regulation |
| 08/25/2011 | WO2011102319A1 Rankine cycle apparatus |
| 08/24/2011 | EP2359006A2 Screw compressor |
| 08/24/2011 | CN201943956U 节能型反比例阀 Energy-efficient inverse proportion valve |
| 08/24/2011 | CN201943955U 一种具有柔性容积比滑阀的螺杆压缩机 With a flexible volume ratio of the screw compressor slide valve |
| 08/24/2011 | CN201943953U 带有启动卸载和输气量调节的滚动转子压缩机 Start unloading and gas transmission capacity with adjustable scroll compressor rotor |
| 08/24/2011 | CN102165197A 螺旋压缩机 Screw compressor |
| 08/18/2011 | DE102009050801A1 Safety device for protecting non-pressure resistant device, has relief part arranged at opening of terminal end of split relief branch pipe for relieving air inlet pipe when pressure inside air inlet pipe exceeds pre-set value |
| 08/17/2011 | CN102155410A Air compressor |
| 08/11/2011 | WO2010106505A3 Rotary vacuum pump with a device for decoupling the driving motor |
| 08/11/2011 | DE10046768B4 Schraubenvakuumpumpe mit Bypass-Ventil Screw vacuum pump with bypass valve |
| 08/10/2011 | CN201925169U 螺杆压缩机组一体化监控系统 Screw compressor integrated monitoring system |
| 08/10/2011 | CN201925168U 容量调节机构及封闭式螺杆压缩机 Capacity adjustment mechanism and hermetic screw compressors |
| 08/10/2011 | CN201925167U Control system for performance testing process of dry-type roots vacuum pump unit |
| 08/10/2011 | CN201925166U 基于多微控制器mpu的螺杆压缩机控制系统 Multi microcontroller mpu screw compressor control system |
| 08/10/2011 | CN201925164U 带安全保护阀的卧式滚动转子压缩机 Horizontal scrolling with safety protection valve compressor rotor |
| 08/10/2011 | CN201925139U 矿用空压机自动控制装置 Mine air compressor automatic control device |
| 08/10/2011 | CN1796785B Displacement type compressor |
| 08/03/2011 | CN201916199U 一种变频空压机 One kind of inverter compressor |
| 08/03/2011 | CN201916198U 螺杆机变频恒压控制装置 Screw constant pressure control device |
| 08/03/2011 | CN101680567B Electromagnetic three-way valve, rotary compressor, and refrigeration cycle device |
| 08/02/2011 | US7988432 Rotary compressor for changing compression capacity |
| 07/27/2011 | CN201908840U Slide valve regulation mechanism and screw compressor with same |
| 07/20/2011 | EP1158167B1 Air conditioner with scroll compressor |
| 07/20/2011 | CN201902328U Variable-frequency screw air compressor |
| 07/20/2011 | CN102132045A Rotary compressor |
| 07/20/2011 | CN102128166A Compressor and control method thereof |
| 07/20/2011 | CN101624986B Slip sheet control device of rotary compressor |