Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
01/2005
01/19/2005CN1566694A Vortex type compressor
01/19/2005CN1566693A Wear prevention device for vortex type compressor
01/19/2005CN1566692A Rotating shaft speed-transformation device for compressor
01/19/2005CN1566691A Axial supporting arrangement for vortex type compressor
01/19/2005CN1566690A Upper load supporting device for rotation crankshaft of vortex compressor
01/19/2005CN1566689A Pipe expanding type exhaust pipe fixing apparatus for hermetic compressor
01/19/2005CN1566688A Rotation axis of hermetic rotary compressor
01/19/2005CN1566686A Casing for compressor and compressor using the casing
01/19/2005CN1566685A Eccentric piston device for sealed rotary compressor
01/19/2005CN1566684A Partition plate structure for compressor
01/19/2005CN1566683A Method for machining baffle slot of compressor
01/19/2005CN1566682A Multiple compression type compressor
01/19/2005CN1566681A Vane supporting structure for compressor
01/19/2005CN1566680A Hermetic compressor
01/19/2005CN1566679A Noise reducing/damping structure for hermetic compressor
01/19/2005CN1566678A Discharged gas guiding structure for hermetic compressor
01/19/2005CN1566677A Partition plate combination method for compressor
01/19/2005CN1566676A Damping device for hermetic compressor
01/19/2005CN1566675A Vane of compressor
01/19/2005CN1566674A Structure of compressor
01/19/2005CN1566673A Rotation axis fixing device for hermetic compressor
01/19/2005CN1566672A Device for decreasing thrust surface friction for hermetic compressor
01/19/2005CN1566671A Device for decreasing thrust surface friction for hermetic compressor
01/19/2005CN1566670A Disc air compressor
01/19/2005CN1566669A Vortex type compressor
01/19/2005CN1566668A High vacuum prevention device for vortex type compressor
01/19/2005CN1185416C Turbine machine
01/18/2005US6843836 Integrated compressor drier apparatus
01/13/2005WO2005003563A1 Scroll compressor and method of machining scroll lap
01/13/2005US20050008521 Check valve of scroll compressor
01/13/2005US20050008520 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit
01/13/2005US20050008519 Rotary compressor
01/13/2005US20050008518 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit
01/13/2005US20050008507 Bearing support and stator assembly for compressor
01/13/2005US20050008442 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit
01/12/2005EP1496262A1 Rotary compressor
01/12/2005EP1496261A2 Rotary vane vacuum pump or compressor
01/12/2005EP1496260A2 Hermetic compressors
01/12/2005EP1496259A2 Hermetic compressors
01/12/2005EP1496258A2 Hermetic compressors
01/12/2005EP1496254A2 Closed rotary compressor
01/12/2005CN1564906A In-turn rotary piston engine
01/12/2005CN1563722A Control method for exhaust temp of oil spraying rotary compressor
01/12/2005CN1563720A Synchronous rotary compressor
01/12/2005CN1184420C Co-cycloidal rotor machine
01/11/2005CA2325690C Oiless rotary scroll air compressor axial loading support for orbiting member
01/06/2005WO2005001292A1 Scroll compressor
01/06/2005US20050002817 Air pump
01/06/2005US20050002816 Power generating device
01/06/2005US20050002815 Variable capacity rotary compressor
01/06/2005US20050002814 Variable capacity rotary compressor
01/06/2005US20050002813 Variable capacity rotary compressors
01/06/2005US20050002804 Closed compressor
01/06/2005US20050002803 Hermetic compressor
01/06/2005US20050000436 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor
01/05/2005EP1493981A2 Compressor diagnostic system
01/05/2005EP1493980A2 Compressor diagnostic system
01/05/2005EP1492986A1 Injection of liquid and vapor refrigerant through economizer ports
01/05/2005EP1492940A1 Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander
01/05/2005DE10326466A1 A method for improving the performance of a speed controlled screw compressor has a regulating slide joining the pressure and suction sides at start up
01/05/2005CN1183330C Vortex type compressor
01/05/2005CN1183328C Vortex compressor
01/05/2005CN1183327C Vortex machine
01/05/2005CN1183326C Scroll machine and its scroll component
01/05/2005CN1183325C Helical compressor
12/2004
12/30/2004US20040265160 Cooled screw-type vacuum pump
12/30/2004US20040265159 Scroll-type compressor
12/30/2004US20040265146 Roots compressor module
12/30/2004US20040265143 Hybrid compressor
12/30/2004US20040265140 Two-step self-modulating scroll compressor
12/30/2004US20040261845 Float valve for pulsating flow
12/30/2004DE10326467A1 Refrigeration screw compressor with main rotor, auxiliary rotor and economizer connection, has additional openings between main inlet and outlet, at intermediate pressure
12/30/2004DE102004024402A1 Fluidmaschine Fluid machine
12/29/2004WO2004113731A1 Rotary-type enclosed compressor and refrigeration cycle apparatus
12/29/2004WO2004113730A1 Scroll compressor
12/29/2004EP1491768A1 Compressor
12/29/2004CN2667205Y Gas quantity regulation sliding valve position signal detector for helical-lobe compressor
12/29/2004CN2667203Y Multi-stage Roots oil-free vacuum pump
12/29/2004CN2667202Y Single-side vortex oil free vacuum pump
12/29/2004CN1558985A System for the construction of pumps, compressor, and motor engines, formed by a rotary chamber and pistons which are driven in the same direction at varying velocities alternatively opposite to each
12/29/2004CN1558116A Centrifugal force control type variable displacement vortex type compressor
12/28/2004US6835055 Rotary vane vacuum pump having a rotor axial seal and an axially bias rotor-drive shaft combination
12/23/2004WO2004111462A1 Scroll compressor
12/23/2004WO2004111461A1 Closed compressor
12/23/2004WO2004111460A1 Vane rotary pneumatic pump
12/23/2004WO2004111457A1 Scroll compressor
12/23/2004WO2004111456A1 Scroll compressor
12/23/2004WO2004111454A1 Compressor
12/23/2004WO2004111453A1 Compressor
12/23/2004WO2004111390A1 Compressor
12/23/2004US20040258551 Vacuum pump
12/23/2004US20040258542 Plural compressors
12/23/2004US20040258539 Fluid machine
12/23/2004CA2527859A1 Fluid pump and motor
12/22/2004EP1489368A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
12/22/2004EP1489308A2 Plural compressors
12/22/2004EP1489307A1 Scroll type fluid machine
12/22/2004EP1488107A1 Eccentric pump and method for operation of said pump
12/22/2004CN2665410Y Coaxial multi-stage screw type air compressor
12/22/2004CN1556899A Discharge porting design for screw compressor