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

Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
12/2007
12/21/2007	WO2007145465A1 A scroll compressor improved in function of oil circulation and back pressure control
12/20/2007	DE102005014129B4 Abwärme eines Verbrennungsmotors nutzendes System Waste heat from an internal combustion engine using system
12/20/2007	DE10004373B4 Trockenverdichtende Schraubenpumpe Dry-screw pump
12/19/2007	EP1867876A2 Scroll compressor
12/19/2007	EP1867834A2 Fluid machine and scroll compressor
12/19/2007	CN200993102Y Automobile engine vacuum pump
12/19/2007	CN200993101Y Roots dry vacuum pump rotor structure switahle for discharge directly into atmosphere
12/19/2007	CN200993100Y Non-return valve for scroll compressor
12/19/2007	CN101091063A Capacity varying type rotary compressor and refrigeration system having the same
12/19/2007	CN101091062A Capacity varying type rotary compressor and refrigeration system having the same
12/19/2007	CN101089396A Screw molded lines of symmetric figure screw air compressor
12/19/2007	CN101089395A Cubage type fluid machinery
12/19/2007	CN101089394A Fluid machine and scroll compressor
12/19/2007	CN101089393A 涡旋压缩机 Scroll Compressor
12/19/2007	CN101089392A Drive mechanism for vehicle tubocompressor
12/19/2007	CN100356121C 制冷机 Refrigerator
12/19/2007	CN100356065C 制冷压缩机 Refrigeration Compressors
12/19/2007	CN100356064C 涡旋式压缩机 Scroll compressor
12/18/2007	US7309219 Scroll type fluid machinery
12/18/2007	US7309217 Variable capacity rotary compressor
12/13/2007	WO2007140759A1 Vane cell pump
12/13/2007	WO2007140758A1 Vane pump
12/13/2007	WO2007140514A1 Vane pump for pumping hydraulic fluid
12/13/2007	US20070288113 Aligner evaluation system, aligner evaluation method, a computer program product, and a method for manufacturing a semiconductor device
12/12/2007	EP1865201A1 Scroll fluid machine
12/12/2007	EP1865200A1 Hybrid compressor
12/12/2007	EP1307657B1 Two-shaft vacuum pump
12/12/2007	CN200989304Y Low-dew-point screw air compressor integrated machine
12/12/2007	CN200989303Y Opening and closing Roots blower
12/12/2007	CN101086258A Frequency-variable screw type refrigerating compressor
12/12/2007	CN101086256A Symmetrical screw type air compressor screw profile
12/12/2007	CN101086255A Rotation-type compressor
12/12/2007	CN100354529C Inlet piece for a liquid-injected compressor element
12/12/2007	CN100354528C Noise reducing device for vortex type compressor
12/12/2007	CN100354527C Upper load supporting device for rotation crankshaft of vortex compressor
12/12/2007	CN100354526C Compressor with capacity control
12/12/2007	CN100354525C 变容旋转压缩机 Variable capacity rotary compressor
12/12/2007	CN100354524C 可变容量旋转式压缩机 The variable capacity rotary compressor
12/12/2007	CN100354523C 涡旋回转式压缩机 Rotary scroll compressor
12/06/2007	WO2007138809A1 Expander and compressor with integrated expander
12/06/2007	WO2007111903B1 Scroll machine using floating seal with backer
12/06/2007	US20070280843 Rotary Compressor
12/06/2007	US20070277522 Brayton Cycle Device And Exhaust Heat Energy Recovery Device For Internal Combustion Engine
12/06/2007	DE10240980B4 Spiralkompressor mit variabler Kapazität A scroll type compressor with variable capacity
12/05/2007	EP1301714B1 Screw machine
12/05/2007	CN200985884Y Fastening blade-type rotary compressor
12/05/2007	CN200985883Y Cyclone compressor oil return device
12/05/2007	CN101082339A Screw rod line of screw air compressor
12/05/2007	CN101082338A Screw rod line of high flow rate screw air compressor
12/05/2007	CN101082337A Screw rod line of symmetrical shaped high flow rate screw air compressor
12/05/2007	CN100353071C 电动压缩机 Electric compressor
12/05/2007	CN100353070C Variable capacity rotary compressors
12/05/2007	CN100353069C 可变容量旋转压缩机 The variable capacity rotary compressor
12/05/2007	CN100353068C Variable capacity rotary compressors
12/05/2007	CN100353067C 可变容量旋转压缩机 The variable capacity rotary compressor
12/05/2007	CN100353066C Vortex machine
12/04/2007	US7303379 Horizontal type compressor and automobile air conditioner equipped with the same
12/04/2007	US7302803 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigerant unit
12/04/2007	CA2240169C Twin feed screw
11/2007
11/29/2007	US20070274852 Volumetric Screw Compressor Provided with Delivery Adjustment Device
11/28/2007	EP1860156A1 Composition for slide member, slide member and fluid machinery
11/28/2007	EP1859163A2 Pressure sealed tapered screw pump/motor
11/28/2007	EP1251020B1 Car air conditioner and car with its conditioner
11/28/2007	CN101078400A Scroll compressor with vapor injection
11/28/2007	CN100351526C Multi-section compression type rotary compressor and set-up method of discharge volume ratio
11/28/2007	CN100351525C 气体压缩机 Gas compressor
11/28/2007	CN100351524C Method for designing a profile enveloped by multi straight lines of engagement pair for single screw compressor
11/28/2007	CN100351523C Rotor tooth profile for helical-lobe compressor
11/28/2007	CN100351522C Screw rotor
11/27/2007	US7300265 Flanged sleeve guide
11/27/2007	US7300259 Variable capacity rotary compressor
11/27/2007	CA2240168C Double worm system
11/22/2007	WO2007132259A1 Vacuum pump
11/22/2007	US20070269326 Dual volume-ratio scroll machine
11/22/2007	US20070269325 Modular Volumetric Compressor
11/21/2007	EP1857694A1 Lubricated metal bearing material
11/21/2007	EP1857681A2 Drive assembly for a vacuum pump
11/21/2007	EP1766241B1 Single-winged vacuum pump
11/21/2007	CN200978805Y Concentric ring drum-type compressor
11/21/2007	CN200978804Y All-dry type special rotary vane vacuum pump
11/21/2007	CN200978803Y Screw compressor rotor
11/21/2007	CN200978802Y Oil-free scroll vacuum pump
11/21/2007	CN101076667A 涡旋式流体机械 The scroll-type fluid machine
11/21/2007	CN101074672A Multi-stage rotary compressor and its method for setting elimination volume ratio
11/21/2007	CN101074671A Improved compressor cylinder
11/21/2007	CN101074670A Oilless roots vacuum pump with mechanical seal
11/21/2007	CN101074669A Roots vacuum pump with mechanical seal leakage-proof
11/21/2007	CN101074668A Tip seal for scroll fluid machine
11/21/2007	CN101074667A 涡旋流体机 Scroll fluid machine
11/21/2007	CN101074666A Device for manufacturing container assembly
11/20/2007	US7296983 Gas compression apparatus capable of preventing lubricant leakage
11/15/2007	WO2007129403A1 Rotary type fluid machine
11/15/2007	WO2007128309A1 Screw compressor with integral oil channels
11/15/2007	WO2007128308A1 Screw compressor with rotor endplates
11/15/2007	US20070264148 Gear pump arrangement
11/15/2007	DE102007017770A1 Fluidmaschine, Rankine-Kreislauf und Steuerungsverfahren Fluid machine Rankine cycle and control method
11/15/2007	DE102006021704A1 Schraubenverdichter für große Antriebsleistungen Screw compressors for large power ratings
11/15/2007	DE102006021703A1 Oil-flooded screw compressor has two rotors and measuring element of regulating chain, where regulating algorithm of regulating chain increases pressure on balance pistons, if measuring element indicates larger gap
11/14/2007	EP1855009A1 Rotary lobe machine
11/14/2007	EP1766240B1 Single-blade vacuum pump

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