Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
08/2001
08/28/2001CA2073056C Rotary fluid engine
08/23/2001WO2001061195A1 Rotary positive-displacement compressor with conical rotors
08/23/2001WO2001061194A1 Screw compressor
08/23/2001WO2001061151A1 Equipment with mutually interacting spiral teeth
08/23/2001US20010016172 Refrigerating cycle or compressor having foreign matter collector
08/23/2001DE10105502A1 Spiralfluidverdrängungsgerät Scroll type fluid displacement apparatus
08/22/2001CN1309279A Air conditioner, outdoor unit and refrigerating unit
08/21/2001US6276911 Screw compressor
08/21/2001US6276910 Scroll-type compressor having an oil groove intersecting the suction port
08/21/2001US6276149 Air conditioner
08/16/2001WO2001059260A1 Fluid displacement pump with backpressure stop
08/16/2001EP1123150A1 Liquid separator for a liquid injected compressor
08/16/2001EP0828940B1 Worm-drive compressor
08/14/2001US6273696 Screw spindle vacuum pump and operating method
08/14/2001US6273692 Scroll-type compressor
08/14/2001US6273691 Scroll gas compressor having asymmetric bypass holes
08/09/2001WO2001057401A1 Drive mechanism for a screw pump
08/09/2001US20010012489 Sealed-type electric compressor having refrigerant passage
08/09/2001DE10062258A1 Air charging system for fuel cells, has water supply mechanism which isolates water from exhaust gas discharged by the fuel cell, and supplies water to the air supply mechanism
08/09/2001DE10004373A1 Antrieb einer Schraubenspindelpumpe Drive a screw pump
08/09/2001CA2398263A1 Drive for a screw pump
08/08/2001EP1122440A1 Method of controlling a process for treating fluids
08/08/2001EP1122439A2 Hermetic compressor assembly
08/08/2001EP1122438A2 Oldham coupling for scroll machine
08/08/2001EP1122437A2 Scroll compressor
08/08/2001EP1122436A2 Horizontal scroll compressor
08/08/2001EP1009590A4 Ergonomically friendly random orbital sander construction
08/08/2001CN2442002Y 旋转式压缩机 Rotary compressor
08/07/2001US6270329 Rotary compressor
08/07/2001US6270328 Interlocking scroll compressor components
08/07/2001CA2063888C Orbiting rotary compressor
08/07/2001CA2063734C Scroll compressor
08/02/2001US20010010800 Displacement type fluid machine
07/2001
07/31/2001US6267572 Scroll fluid machine having scroll members at each end of a rotating hollow shaft
07/31/2001US6267565 Scroll temperature protection
07/31/2001US6266952 Process for controlling compressors
07/26/2001US20010009593 Thrust ball bearing
07/26/2001US20010009150 Fluid displacement pump with backpressure stop
07/26/2001DE10002557A1 Axialkugellager Thrust ball bearing
07/25/2001EP1118783A2 Thrust ball bearing
07/25/2001EP1117933A1 Vacuum pump
07/25/2001EP1117902A1 Rotary machine
07/24/2001US6264448 Open type compressor
07/24/2001US6264446 Horizontal scroll compressor
07/24/2001US6264445 Scroll compressor drive having a brake
07/24/2001US6264444 Scroll-type compressor having orbital rotating mechanism on the side of movable spiral wall
07/24/2001US6264443 Scroll compressor with integral outer housing and fixed scroll member
07/19/2001WO2001051813A1 A screw compressor injected with water
07/19/2001US20010008610 Displacement type fluid machine
07/18/2001EP0990198A4 Method and apparatus for accurately dispensing liquids and solids
07/18/2001CN1303997A Single-head hinged rolling rotor compressor
07/17/2001US6261073 Rotary compressor having bearing member with discharge valve element
07/17/2001US6261072 Scroll compressor
07/12/2001WO2001049515A1 Car air conditioner and car with its conditioner
07/12/2001WO2001014693B1 A variable volume device and system therefor
07/12/2001DE10064711A1 Asymmetrischer Schneckenverdichter Asymmetric screw compressor
07/12/2001DE10062593A1 Rollkompressor Roll compressor
07/11/2001EP0904494B1 Scroll-type vacuum pumping apparatus
07/11/2001CN2438850Y Full-closed rotary compressor
07/11/2001CN1302957A Compressor
07/11/2001CN1302956A Compressor with parallelly connected multiple cylinders, hinged blades and rolling rotor
07/11/2001CN1302955A Compressor
07/11/2001CN1302954A Conical hub bearing for scroll machine
07/10/2001US6257970 Ergonomically friendly random orbital construction
07/10/2001US6257855 Screw fluid machine
07/10/2001US6257854 Double screw rotor assembly having means to automatically adjust the clearance by pressure difference
07/10/2001US6257851 Generalized minimum diameter scroll component
07/10/2001US6257840 Scroll compressor for natural gas
07/10/2001US6257839 Double screw rotor assembly with electrically controlled clearance adjustment means
07/10/2001US6257195 Internal combustion engine with substantially continuous fuel feed and power output
07/05/2001WO2001048385A1 Screw vacuum pump with a coolant circuit
07/05/2001WO2001048384A1 Screw vacuum pump
07/05/2001WO2001048383A1 Cooled screw vacuum pump
07/05/2001WO2001048381A2 Vacuum pump
07/05/2001US20010006604 Asymmetric scroll compressor
07/05/2001US20010006603 Compressor
07/04/2001CN1301924A Rolling motor compressor with several serial cylinders and hinged blades
07/04/2001CN1301923A Asymmetric whirl compressor
07/03/2001US6254755 Electroplating process for oldham ring and scroll member type compressor comprising the same
06/2001
06/28/2001WO2001046592A1 Dry compressing vacuum pump having a gas ballast device
06/28/2001DE19963173A1 Screw-type vacuum pump has sleeve located between shafts and associated rotors and with sum of wall thicknesses larger than depth of screw threads, the two sleeves having same wall thickness
06/28/2001DE19963172A1 Screw-type vacuum pump has shaft-mounted rotors each with central hollow chamber in which are located built-in components rotating with rotor and forming relatively narrow annular gap through which flows cooling medium
06/28/2001DE19963171A1 Screw-type vacuum pump used in cooling circuits has guide components located in open bores in shafts serving for separate guiding of inflowing and outflowing cooling medium
06/28/2001DE19962445A1 Dry compressing vacuum pump has gas ballast device with valve that only opens when difference between atmospheric pressure and pressure on pump side of valve exceeds set value
06/28/2001DE10063603A1 Encapsulated electric compressor has refrigerant or coolant channel with first part parallel to rotor shaft and second part connected to first part and extending radially outwards
06/28/2001DE10059275A1 Vacuum pump especially for motor vehicle's servo brake system has rotor or vane consisting of aluminum or aluminum alloy, constructed in one piece, and with rotor manufactured through non-cutting forming
06/27/2001EP1111243A2 Screw vacuum pump
06/27/2001EP1111187A2 Screw machine
06/27/2001CN2436691Y Two-unit synchronous sealed eccentral type air compressor
06/27/2001CN2436690Y Direct joint-type air compressing pump
06/27/2001CN1300904A Screw rod mechanism
06/26/2001US6250899 Rotary compressor
06/26/2001US6250898 Refrigerating cycle or compressor having foreign matter collector
06/26/2001US6250278 Rotary machine
06/26/2001CA2226801C Vane for a rotary compressor
06/21/2001US20010004445 Scroll compressor
06/20/2001EP1108143A1 Dry-compressing screw pump
06/20/2001CN1299930A Toothed screw bolt
06/20/2001CN1299929A Toothed screw bolt
06/20/2001CN1299928A Screw bolt with new type of profile