Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 18 - Rotary-piston pumps specially adapted for elastic fluids
Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
09/2005
09/07/2005CN1664473A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664471A Fluid machine
09/07/2005CN1664373A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664372A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664371A Method for designing a profile enveloped by multi straight lines of engagement pair for single screw compressor
09/07/2005CN1218126C Positive displacement fluid machinery
09/06/2005US6939116 Scroll compressor
09/06/2005US6939114 Dynamotor driven compressor and method for controlling the same
09/01/2005WO2005080797A1 Hermetic type compressor with wave-suppressing member in the oil reservoir
09/01/2005WO2005080796A1 Expander
09/01/2005WO2005080756A1 Brayton cycle device and exhaust heat energy recovery device for internal combustion engine
09/01/2005US20050191198 Two-stage rotary compressor
09/01/2005US20050188708 System and method for variable speed operation of a screw compressor
09/01/2005DE102005001462A1 Spiralkompressor Scroll compressor
09/01/2005DE102005001160A1 Spiralkompressor Scroll compressor
09/01/2005DE102004002151B3 Rotary piston blower for compressing and releasing gases comprises blades pivoting on a rotor, and heat exchangers arranged on the rotor between the blades
08/2005
08/31/2005EP1568887A2 Two-stage rotary compressor
08/31/2005EP1567770A1 Screw compressor
08/31/2005CN2721915Y Axial servo mechanism of scroll compressor
08/31/2005CN1662746A Apparatus for controlling the pressure in a process chamber and method of operating same
08/31/2005CN1661250A Lubricating-fluid infusion apparatus
08/31/2005CN1661249A Fluid dispensation method
08/31/2005CN1661248A Method of charging dynamic-pressure bearing device with lubricating fluid, and method of inspecting dynamic-pressure bearing device
08/31/2005CN1661238A Two-stage rotary compressor
08/31/2005CN1217102C Sealed electrical compressor
08/30/2005US6935854 Gas compressor
08/30/2005US6935853 Variable capacity rotary compressor
08/30/2005US6935852 Scroll compressor having a back pressure chamber comprising high and middle pressure chambers
08/25/2005WO2005078281A1 Vacuum device
08/25/2005US20050186101 Method of Charging Dynamic-Pressure Bearing Device with Lubricating Fluid, and Method of Inspecting Dynamic-Pressure Bearing Device
08/25/2005US20050186095 Lubrication system for compressor
08/25/2005US20050184085 Fluid Dispensation Method
08/25/2005US20050183906 Lubricating-Fluid Infusion Apparatus
08/25/2005US20050183447 Refrigerant cycling device
08/25/2005DE102004005468A1 Fluid control for rotary piston machines and rotary piston compressors allows rotary piston machines to be used as flow-optimized compressors and as rotary piston pumps for conveying fluid
08/24/2005EP1566546A1 Scroll compressor and refrigerating system using ammonia
08/24/2005EP1362188B1 Rotary piston machine for compressible media
08/24/2005CN1659381A Compressor protective method and structure
08/24/2005CN1659379A Four-in pump
08/24/2005CN1657784A 变容量型压缩机 Variable capacity compressor
08/24/2005CN1657783A High-pressure compressor
08/24/2005CN1657781A Scroll compressor
08/23/2005US6932588 Variable capacity rotary compressor
08/23/2005US6932586 Scroll-type compressor
08/23/2005US6931866 Multistage compression type rotary compressor and cooling device
08/18/2005US20050180871 Fluid compressor
08/18/2005US20050180865 Vacuum pump
08/18/2005US20050180859 Four-in pump
08/17/2005EP1563190A2 Vacuum pump
08/17/2005EP1563189A1 Helical compressor for refrigerating medium
08/17/2005CN2718270Y Dry type high-speed helical-lobe air compressor
08/17/2005CN2718269Y Continuous and free type contact line single-helical-lobe compressor engagement pair
08/17/2005CN2718268Y Rotary air compressor
08/17/2005CN1656319A Methods and apparatus for unloading a screw compressor
08/17/2005CN1656318A Dual-shaft vacuum pump
08/17/2005CN1656316A Vacuum pump
08/17/2005CN1215262C Compound compressor
08/17/2005CN1215261C Vortex compressor
08/17/2005CN1215260C Natural gas scroll compressor
08/16/2005US6929457 Gas compressor
08/16/2005US6929455 Horizontal two stage rotary compressor
08/11/2005US20050177142 Device for applying electromagnetic radiation for treatment
08/11/2005US20050175492 Hermetic compressor
08/11/2005US20050172662 Refrigerant cycling device
08/11/2005US20050172661 Compressor
08/11/2005US20050172646 Refrigerant compressor, and refrigerating machine using the same
08/11/2005US20050172622 Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander
08/11/2005DE20221223U1 Rotary piston fan for cooker has 2- or 3-vane rotary piston(s) that works in conjunction with drive, is at least partly helical along drive axes and is hollow at least in some regions of interior
08/11/2005DE10027009B4 Spiralkompressor Scroll compressor
08/10/2005EP1562011A2 Digital controller for scroll compressor condensing unit
08/10/2005CN2716547Y Positive displacement compression pump
08/10/2005CN1651768A Scroll compressor
08/10/2005CN1651767A Rotary plate type vacuum pump
08/10/2005CN1651765A Small volum, large flow pump
08/10/2005CN1214187C Swirl compressor
08/09/2005US6925832 High-low pressure dome type compressor
08/09/2005US6925824 Apparatus for driving a compressor and a refrigerating air conditioner
08/04/2005WO2005071269A1 Swing compressor
08/04/2005WO2005071268A1 Screw vacuum pump
08/04/2005WO2005071259A1 Scroll wrap tip with abradable selectively applied coating and load-bearing surface
08/04/2005US20050169789 Screw compressor
08/04/2005US20050169788 Scroll type fluid machinery
08/04/2005US20050169787 Compressor
08/04/2005DE10306547B4 Drehkolbenmaschine Rotary engine
08/04/2005DE102004057255A1 Motorgetriebener Roots-Verdichter Motor-driven Roots pump
08/04/2005DE102004056744A1 Fluidkompressor Fluid compressor
08/03/2005EP1357292B1 Single-screw compressor
08/03/2005EP1242743B1 Screw vacuum pump with a coolant circuit
08/03/2005EP1228292B1 Screw rotor machine having means for axially biasing at least one of the rotors
08/03/2005CN2714848Y 涡旋式压缩机 Scroll compressor
08/03/2005CN2714847Y Back pressure mechanism of scroll compressor
08/03/2005CN1213471C Transfer device for semiconductor device in processor
08/03/2005CN1213232C Swirl compressor
08/02/2005US6923628 Vacuum pump
07/2005
07/28/2005WO2005068841A1 Scroll fluid machine
07/28/2005WO2005068840A1 Fluid machine
07/28/2005WO2005067618A2 Scroll compressor with enlarged vapor injection port area
07/28/2005WO2005067519A2 Scroll compressor with wrap walls provided with an abradable coating and a load-bearing surface at radially outer locations
07/28/2005US20050163632 Eccentric pump and method for operation of said pump
07/28/2005US20050163630 Compressor
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