F04C 18 - Rotary-piston pumps specially adapted for elastic fluids

Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
12/2004
12/22/2004	CN1181262C Screw-type compressor
12/21/2004	US6832488 Refrigerating machine
12/16/2004	WO2004109115A1 Rotary compressor
12/16/2004	WO2004109114A1 Rotary compressor
12/16/2004	WO2004109113A1 Rotary fluid machinery
12/16/2004	WO2004109112A1 Four-in pump
12/16/2004	WO2004109108A1 Compressor
12/16/2004	US20040253133 Scroll compressor
12/16/2004	US20040250546 Rotating fluid machine
12/15/2004	EP1486742A1 Refrigerant cycle apparatus
12/15/2004	EP1486677A1 Rotary compressor
12/15/2004	EP1486676A1 Scroll compressor
12/15/2004	EP1486672A1 Closed compressor
12/15/2004	EP0849471B1 High-pressure dome type compressor in which the discharge of oil by gas is prevented and in which oil is cooled by discharge gas
12/15/2004	CN2663691Y Gas compressor
12/09/2004	US20040247476 Scroll compressor
12/09/2004	US20040247475 Scroll fluid machine
12/09/2004	US20040247474 Rotary compressor
12/09/2004	US20040247465 Screw type vacuum pump
12/09/2004	US20040247456 Compressor bearing and compressor component
12/09/2004	DE10046686B4 Kompressor-Regenerator-Vorrichtung für eine Brennstoffzelle Compressor-regenerator device for a fuel cell
12/08/2004	EP1212573B1 Prevention of oil backflow from a screw compressor in a refrigeration chiller
12/08/2004	CN1179175C Scroll compressor with unloading valve between energy-saving device and suction device
12/08/2004	CN1179133C Compressure with foreign body collector
12/08/2004	CN1179132C Turbine-type vacuumizing pump
12/08/2004	CN1179131C Scroll compressor with reverse offset at wrap tips
12/08/2004	CN1179130C Swirl compressor with discharge port and discharge valve on fixed swirl end plate
12/07/2004	US6827564 Rotary compressor
12/07/2004	US6827563 Scroll compressor for carbon dioxide supplied with a lubricant
12/02/2004	WO2004104421A1 Scroll plate and manufacture method thereof
12/02/2004	US20040241030 Scroll fluid machine
12/02/2004	US20040241028 Scroll compressor with flow restriction and back pressure chamber tap
12/02/2004	US20040241027 Roots pump
12/02/2004	US20040241010 Variable capacity rotary compressor
12/01/2004	EP1482177A1 Scroll fluid machine
12/01/2004	CN2660175Y Multi-stage vacuum pump
12/01/2004	CN2660174Y Three-blade impeller of Roots blower
12/01/2004	CN1550676A 制冷剂泵 Refrigerant pump
12/01/2004	CN1550675A Apparatus for preventing overheat of scroll compressor
12/01/2004	CN1550674A Roots pump
12/01/2004	CN1550673A Screw compressor
12/01/2004	CN1178004C Asymmetric whirl compressor
12/01/2004	CN1178001C Rotary fluid machinery, vane fluid machinery, and waste heat recovery device of internal combustion engine
11/2004
11/30/2004	US6824370 Rotary vane gas compressor having unequal intervals between vane grooves and/or unequal distances between vane grooves and rotor center
11/30/2004	US6824367 Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same
11/25/2004	WO2004102006A1 System for controlling compressor of cooling system and method for controlling the same
11/25/2004	WO2004102004A1 Rotary compressor
11/25/2004	WO2004102001A1 Rotary compressor
11/25/2004	WO2004102000A1 Rotary compressor
11/25/2004	WO2004101999A1 Rotary compressor
11/25/2004	WO2004101998A1 Scroll pump
11/25/2004	WO2004101997A1 Rotary compressor
11/25/2004	WO2004101996A1 Rotary compressor
11/25/2004	US20040234405 Scroll fluid machine
11/25/2004	US20040231331 Fluid machine
11/24/2004	EP1479916A1 Scroll fluid machine
11/24/2004	EP1479915A1 Scroll pump
11/24/2004	EP1479914A1 Sliding vane compressor
11/24/2004	EP1479913A2 Roots pump
11/24/2004	EP1478853A2 Variable capacity compressor and heat exchanging system
11/24/2004	EP0941405B1 Fluid compressor
11/24/2004	CN1548766A Lubricating oil supply structure for compressor
11/24/2004	CN1548764A Closed rotary compressor bearing connection structure
11/24/2004	CN1548760A Vibration damping structure for closed rotary compressor
11/24/2004	CN1548755A Compressing part welding device for closed rotary compressor
11/24/2004	CN1548754A Welding device for compressing part of closed rotary compressor
11/24/2004	CN1548753A Closed rotary compressor
11/24/2004	CN1548752A Air leakage prevention apparatus for closed compressor
11/24/2004	CN1548751A Air cylinder fixing device for compressor
11/24/2004	CN1548750A Closed rotary compressor with antiwearing structure
11/24/2004	CN1548749A Baffle plate structure for compressor
11/24/2004	CN1548748A Gas leakaging proof apparatus for whole-closed compressor
11/24/2004	CN1548747A Rolling belt loading double-cavity sliding sheet compressor
11/24/2004	CN1548746A Loading automatic balancing double-helical-lobe refrigerating compressor
11/24/2004	CN1548745A Reversed operation preventing apparatus for vortex type compressor
11/24/2004	CN1548744A Vortex dynamic power generating machine
11/24/2004	CN1548703A Multi-arc cylinder body sliding sheet rotor positive displacement machinery
11/24/2004	CN1177143C Scroll-type compressor
11/23/2004	US6821098 Screw compressor having compression pockets closed for unequal durations
11/23/2004	US6821092 Capacity modulated scroll compressor
11/18/2004	WO2004099620A1 Improvements in seal assemblies
11/18/2004	US20040228751 Apparatus for preventing overheat of scroll compressor
11/18/2004	US20040228744 Refrigerant pump
11/17/2004	EP1477680A2 Scroll compressor
11/17/2004	EP1141552B1 Screw compressor
11/17/2004	CN2656674Y Improved Roots blower casing
11/17/2004	CN1546865A Approximate sealed dual head screw
11/17/2004	CN1546864A Dentiform screw with short seal line
11/17/2004	CN1546861A Rotary piston type fluid element
11/17/2004	CN1176302C Compressor possessing oil mist separator
11/11/2004	WO2004074687A3 Vacuum pump with a plastic blade
11/11/2004	US20040223862 Oil utilized as motor protector trip for scroll compressor
11/11/2004	DE10248926B4 Kompressor Compressor
11/10/2004	EP1475541A2 Scroll compressor
11/10/2004	EP1474591A1 Compressed air motor
11/10/2004	CN2654905Y Two-functional intelligent control helical-lobe air compressor
11/10/2004	CN1544815A Pin gear rotor and block fluid transportation apparatus
11/10/2004	CN1175188C Multi-cylinder rotary compressor
11/10/2004	CN1175187C Oldham coupling for a scroll compressor
11/09/2004	US6814554 Vortex compressor

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