| 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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| 02/07/2007 | CN1908437A Capacity modulated scroll machine |
| 02/07/2007 | CN1299006C Internal intermediate pressure 2-stage compression type rotary compressor |
| 02/01/2007 | WO2007012178A1 Remote starter for a pump |
| 02/01/2007 | US20070022771 Cooling system with variable capacity control |
| 02/01/2007 | DE102004050924B4 Steuerung für einen regenerativ betreibbaren Kompressormotor für ein Brennstoffzellenantriebssystem Control for a renewable operated compressor motor for a fuel cell drive system |
| 02/01/2007 | CA2614077A1 Remote starter for a pump |
| 01/31/2007 | CN2864160Y Scroll compressor and starting torque control structure thereof |
| 01/31/2007 | CN1904370A Multisection rotating type compressor |
| 01/31/2007 | CN1904369A Multisection rotating type compressor and airconditioner therefor |
| 01/30/2007 | US7168257 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 01/24/2007 | EP1746706A2 Synchronous induction motor |
| 01/24/2007 | CN1900526A Capacity modulated scroll machine |
| 01/24/2007 | CN1900522A Method for controlling air compressor intelligent digital pressure display and its special device |
| 01/23/2007 | US7165947 Screw compressor capable of manually adjusting both internal volume ratio and capacity and combined screw compressor unit accommodating variation in suction or discharge pressure |
| 01/18/2007 | WO2007006666A1 Rotary vacuum pump |
| 01/17/2007 | CN1898472A Scroll fluid machinery |
| 01/17/2007 | CN1896650A 制冷控制 Refrigeration Control |
| 01/17/2007 | CN1896524A 旋转式压缩机 Rotary compressor |
| 01/17/2007 | CN1896523A Check valve device of vortex compressor with spiral pipe |
| 01/17/2007 | CN1896519A Compound compressors |
| 01/16/2007 | US7164218 Electric motor and electric type compressor |
| 01/16/2007 | US7162883 Compressor diagnostic method |
| 01/10/2007 | EP1741932A2 Compressor |
| 01/10/2007 | EP1740895A2 Compressor diagnostic and protection system |
| 01/10/2007 | CN1894507A Scroll compressor |
| 01/10/2007 | CN1892037A Helical-lobe compressor volume regulating slide valve |
| 01/10/2007 | CN1892036A Helical-lobe compressor volume regulating slide valve and its valve barrel |
| 01/10/2007 | CN1892034A Two stage type screw compressor |
| 01/03/2007 | CN1890468A Freezing cycle device |
| 01/03/2007 | CN1293307C Compressor diagnosing system |
| 12/28/2006 | US20060288715 Compressor with capacity control |
| 12/27/2006 | CN1292215C Refrigerating device |
| 12/26/2006 | US7153109 Variable capacity rotary compressor |
| 12/20/2006 | CN1880888A Refrigerating circulation device |
| 12/19/2006 | US7150608 Variable capacity rotary compressor |
| 12/19/2006 | US7150602 Variable capacity rotary compressor |
| 12/13/2006 | EP1730406A1 Volumetric screw compressor provided with delivery adjustment device |
| 12/13/2006 | CN2846800Y Pressure regulation controller for air compressor |
| 12/13/2006 | CN1878993A Compressor with unloader valve between economizer line and evaporator inlet |
| 12/13/2006 | CN1877132A Vacuum air-discharging system |
| 12/06/2006 | EP1727986A1 Gas vane pump, and method of operating the pump |
| 12/06/2006 | CN1873351A Air-conditioner, outdoor unit and refrigeration unit |
| 12/06/2006 | CN1288834C 逆变器装置 Inverter means |
| 12/06/2006 | CN1288346C Rotary compressor and its operation control method |
| 12/05/2006 | US7144224 Variable capacity rotary compressor |
| 11/30/2006 | WO2006126399A1 Hermetic compressor and refrigeration cycle device |
| 11/29/2006 | EP1488107B1 Eccentric pump and method for operation of said pump |
| 11/29/2006 | CN1287402C Electric machine protector special for hermetically-sealed electric compressor |
| 11/28/2006 | US7142930 Disturbance estimated type control system, gas compressor control system and method of designing a disturbance estimated type control system |
| 11/28/2006 | US7140844 Variable capacity rotary compressor |
| 11/22/2006 | EP1724468A2 Two speed scroll compressor |
| 11/22/2006 | EP1723310A1 Method and means for controlling a flow through an expander |
| 11/22/2006 | CN2839664Y Vacuum suction pump negative pressure flow return stop device |
| 11/22/2006 | CN1867775A 螺杆式压缩机 Screw compressors |
| 11/22/2006 | CN1865706A Open drive scroll machine |
| 11/22/2006 | CN1285861C Air conditioner and method of controlling the same |
| 11/21/2006 | US7137796 Scroll compressor |
| 11/16/2006 | US20060257265 Method for controlling a compressed air installation comprising several compressors, control box applied thereby and compressed air installation applying this method |
| 11/16/2006 | DE102005016180A1 Arrangement in refrigerating plant with more than one screw-type compressor has each compressor connected by economizer connection to intermediate pressure vessel |
| 11/15/2006 | EP1722105A2 Multi-rotor screw compressor |
| 11/15/2006 | EP1721384A1 System and method for increasing output horsepower and efficiency in a motor |
| 11/15/2006 | EP1721079A1 System and method for variable speed operation of a screw compressor |
| 11/15/2006 | EP1556614B1 Improvements in dry pumps |
| 11/15/2006 | EP1287298B1 Control system of degree of superheat of air conditioner and control method thereof |
| 11/14/2006 | US7134845 Variable capacity rotary compressor |
| 11/09/2006 | WO2006117940A1 Rotary fluid machine |
| 11/09/2006 | WO2006117503A1 Pumping system and method of operation |
| 11/09/2006 | WO2006116829A1 A control system and method for protection against breakage of lubricant film in compressor bearings. |
| 11/08/2006 | CN1283923C Double volume ratio whiral machinery |
| 11/01/2006 | CN1854525A 涡旋机 The scroll machine |
| 10/26/2006 | DE102005018602A1 Two-stage screw-type compressor comprises a non-return valve arranged between a booster and a high pressure compressor in the flow direction in front of an intermediate pressure connection |
| 10/26/2006 | DE102004060417B4 Kompakter Schraubenkompressor zum mobilen Einsatz in einem Fahrzeug Compact screw compressor for mobile use in a vehicle |
| 10/25/2006 | CN2830709Y Automatic relieving valve of automobile air compressor |
| 10/25/2006 | CN1851272A Vehicular constant-pressure fully-closed vortex compressor |
| 10/25/2006 | CN1281867C Mechanical pump |
| 10/19/2006 | WO2006110177A2 Microfluidic pumps and mixers driven by induced-charge electro-osmosis |
| 10/18/2006 | CN1847660A Rapidly pumping out an enclosure while limiting energy consumption |
| 10/18/2006 | CN1280544C Power modulating vortex machine |
| 10/11/2006 | EP1710440A2 Vacuum pumping with energy limitation |
| 10/11/2006 | EP1370813B1 Hydristor heat pump |
| 10/11/2006 | CN2826015Y Slide valve for adjusting capacity of screw type compressor |
| 10/11/2006 | CN2826014Y Slide valve for adjusting capacity of screw type compressor and valve barrel thereof |
| 10/10/2006 | US7118358 Scroll compressor having a back-pressure chamber control valve |
| 10/05/2006 | US20060222507 Compressor protection and diagnostic system |
| 10/04/2006 | CN1840911A 可变容量旋转压缩机 The variable capacity rotary compressor |
| 10/04/2006 | CN1840910A Apparatus for controlling quantity of feeding oil of inverter compressor |
| 10/04/2006 | CN1840909A Oil supply structure of scroll compressor |
| 10/04/2006 | CN1840908A Oil feeding propeller of scroll compressor |
| 10/04/2006 | CN1840906A Compressor |
| 09/27/2006 | CN2821229Y Over compression preventer of rotary compressor |
| 09/27/2006 | CN1837613A 压缩机诊断系统 Compressor diagnostic system |
| 09/26/2006 | US7111471 Refrigerant cycle apparatus |
| 09/21/2006 | WO2006097679A1 Vacuum pumping arrangement |
| 09/21/2006 | US20060210418 Rotary compressor |
| 09/20/2006 | CN1834463A Vorticity compression pump |
| 09/20/2006 | CN1834456A Compressor |
| 09/20/2006 | CN1276180C Vaccum preventing device for vortex complessor |
| 09/20/2006 | CN1276179C Sealed compressor with hot oil-operated protection switch |
| 09/14/2006 | WO2006095364A1 A system and a method for capacity control in a screw compressor |
| 09/14/2006 | WO2006094781A1 Oil-injected compressor with a temperature switch |