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)
11/2007
11/08/2007	DE10003869C5 Verfahren zum Komprimieren von fluiden Fördermedien A method for compressing fluid fluids
11/07/2007	EP1851438A1 System and method for controlling a variable speed compressor during stopping
11/07/2007	EP1763620A4 Compressor unloading valve
11/07/2007	CN101067416A Compressor capacity control valve and control method and application thereof
11/07/2007	CN100347451C Volume-variable rotary compressor
11/06/2007	US7290994 Rotary hermetic compressor and refrigeration cycle system
11/06/2007	US7290990 Short reverse rotation of compressor at startup
11/06/2007	US7290989 Compressor protection and diagnostic system
10/2007
10/31/2007	EP1850008A1 Vane pump
10/31/2007	EP1850007A1 Vane pump
10/31/2007	CN101063450A Compressor with oil bypass
10/31/2007	CN100346074C Variable capacity rotary compressor
10/24/2007	CN200964950Y Checking valve set structure of turbine compressor
10/24/2007	CN200964946Y Integral electric compressor
10/24/2007	CN100344923C An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
10/18/2007	WO2007115787A1 Screw compressor comprising a relief valve
10/17/2007	CN101054977A Variable capacity rotary compressor and method of varying capacity thereof
10/17/2007	CN100343522C Variable capacity scroll compressor
10/17/2007	CN100343521C Variable capacity scroll compressor
10/17/2007	CN100343520C Variable capacity scroll compressor
10/17/2007	CN100343519C Variable capacity scroll compressor
10/11/2007	DE102006016318A1 Schraubenverdichter mit Entlastungsventil Screw compressor relief valve
10/11/2007	DE102006016317A1 Verdichteranordnung mit einer Ventileinheit im Ansaugbereich Compressor assembly with a valve in the suction unit
10/10/2007	CN200958473Y Assembled PTC starter with composite wiring terminal
10/10/2007	CN101052847A Compressor diagnostic and protection system
10/10/2007	CN101052808A Capacity varying type rotary compressor
10/10/2007	CN100342139C 可变容量旋转压缩机 The variable capacity rotary compressor
10/10/2007	CN100342138C 可变容量旋转压缩机 The variable capacity rotary compressor
10/03/2007	CN200955502Y Displacement-variable control device for vortex compressor
10/03/2007	CN200955501Y High-energy-efficiency rate frequency variable screw type refirgeration compressor
10/03/2007	CN100340826C System utilizing waste heat of internal combustion engine
10/03/2007	CN100340770C Control method for exhaust temp of oil spraying rotary compressor
09/2007
09/26/2007	CN200952474Y Helical-lobe compressor intelligent controller
09/26/2007	CN101042140A Three-way electromagnetical valve
09/20/2007	WO2007060642B1 Rotary motor with intermittent movements of the rotors
09/20/2007	DE112005002644T5 Flügelzellenpumpe mit variabler Fördermenge und Kraftreduktionskammer an Verdrängungsring Vane pump with variable displacement and force reduction chamber of displacement ring
09/19/2007	CN101037996A Bypass device for scroll compressor
09/19/2007	CN100338364C 变容旋转压缩机 Variable capacity rotary compressor
09/18/2007	US7270521 Variable capacity rotary compressor with pressure adjustment device
09/13/2007	WO2007102496A1 Freezing device
09/12/2007	CN100337038C 可变容量旋转式压缩机 The variable capacity rotary compressor
09/12/2007	CN100337036C 可变容量的旋转压缩机 Variable capacity rotary compressor
09/07/2007	WO2007098595A1 Reduced rotor assembly diameter vane pump
09/06/2007	US20070207045 Compressor
09/05/2007	EP1828606A2 Prevention of unpowered reverse rotation in compressors
09/05/2007	EP1700067A4 Compressor protection and diagnostic system
09/05/2007	CN100335790C 空气压缩机 Air compressor
08/2007
08/29/2007	CN200940571Y Volume automatic regulator of screw compressor
08/29/2007	CN100334409C A closed cooling system and its method of operation
08/29/2007	CN100334353C Centrifugal force control type variable displacement vortex type compressor
08/29/2007	CN100334352C Diagnostic system of compressor
08/29/2007	CN100334349C Air compressor and its controlling method
08/28/2007	US7260951 Pressure equalization system
08/28/2007	US7260948 Compressor diagnostic system
08/23/2007	WO2006094781A8 Oil-injected compressor with a temperature switch
08/23/2007	DE102005000896B4 Spiralverdichter mit einer Leistungsregelung Scroll compressor with capacity control
08/23/2007	DE10200378B4 Gerät und Verfahren zum Steuern eines elektrischen Verdichters Apparatus and method for controlling an electric compressor
08/22/2007	EP1287296A4 System for controlling starting of air conditioner and control method thereof
08/22/2007	EP1287295A4 Control system for starting of air conditioner and control method thereof
08/22/2007	CN1333173C Variable capacity rotary compressor
08/15/2007	CN1332162C Detecting vibration by current sensing for use in transporting refrigerating system
08/14/2007	US7255541 Fluid pump
08/09/2007	WO2007088989A1 Vacuum pump unit
08/09/2007	WO2007087693A1 Improved compressor device
08/09/2007	US20070180841 System for controlling compressor of cooling system and method for controlling the same
08/09/2007	DE19902107B4 Verdrängungssteuervorrichtung für eine verstellbare Hydraulikeinheit A displacement control device for a variable displacement hydraulic unit
08/08/2007	CN2931854Y Automatic unloading one-way valve of air compressor
08/08/2007	CN101014771A Volumetric screw compressor provided with delivery adjustment device
08/08/2007	CN101012833A Control method of rotary compressor
08/01/2007	EP1813818A2 Evacuating apparatus
08/01/2007	CN2929253Y Combined PTC starter with heat isolation lid
08/01/2007	CN101010515A System and method to reduce acoustic noise in screw compressors
08/01/2007	CN101008391A Capacity control device and capacity control method for screw compressor
07/2007
07/26/2007	US20070172361 Cleaning method of a rotary piston vacuum pump
07/25/2007	EP1811181A1 Electric pump for hydrogen circulation
07/25/2007	CN101004174A Electric pump for hydrogen circulation
07/18/2007	EP1552156B1 Speed control for compressors
07/18/2007	CN2924083Y Roots fan safety protection device
07/18/2007	CN2924071Y Pressure smart control device of air compressor
07/18/2007	CN101000054A Rotating type compressor sliding vane controlling apparatus and its controlling method and application
07/12/2007	US20070160486 Rotary compressor
07/11/2007	EP1806475A1 Rotary compressor
07/11/2007	CN1995756A Scroll mechanism
07/05/2007	WO2007074795A1 Single stage roots vacuum pump and vacuum fluid transport system employing that single stage roots vacuum pump
07/05/2007	US20070154329 Refrigeration cycle system
07/05/2007	US20070154328 Rotary compressor
07/04/2007	CN1993555A Capacity variable device for rotary compressor and driving method of air conditioner having the same
07/04/2007	CN1993554A Capacity variable type rotary compressor and driving method thereof and driving method for air conditioner having the same
07/04/2007	CN1993553A Capacity variable type rotary compressor and driving method thereof
07/04/2007	CN1993552A Capacity variable type rotary compressor and driving method thereof
07/04/2007	CN1324241C Variable capacity rotary compressor
07/03/2007	US7237432 Vane pump, method for adjusting pump flow rate of vane pump and fuel vapor leakage check module having vane pump
06/2007
06/27/2007	CN1987107A Oil-cooling screw compressor
06/21/2007	WO2007068969A1 Apparatus for detecting a flammable atmosphere within a compressor, in particular avacum pump
06/21/2007	WO2007068335A1 Air-conditioning compressor
06/21/2007	WO2007068246A1 A screw compressor
06/20/2007	EP1798416A1 Rotary compressor with improved working efficiency and relative method
06/19/2007	US7232295 Tempering method for a screw-type vacuum pump
06/14/2007	WO2007066486A1 Roots pump and fuel cell system
06/14/2007	WO2007066463A1 Scroll compressor

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