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)
11/2000
11/29/2000EP1055821A1 Scroll-type apparatus
11/29/2000CN2408268Y Sliding vane self suction pump
11/29/2000CN1059021C Screw serrated form for compressor
11/29/2000CN1059020C Scroll-type compressor and method of assembling the same
11/28/2000US6152718 Positive-displacement piston mechanism having a rotary piston structure
11/28/2000US6152713 Scroll type compressor
11/28/2000US6152700 Hermetic compressor with remote temperature sensing means
11/22/2000EP1054160A1 Positive displacement machine for compressible fluids
11/22/2000EP1054159A2 Roots compressor and method to reduce pulsations
11/22/2000CN1274410A Screw-type compressor
11/22/2000CN1058773C Composite gear tooth-type gas compressor
11/21/2000US6149511 Ergonomically friendly random orbital sander construction
11/21/2000US6149413 Scroll compressor with lubrication of seals in back pressure chamber
11/21/2000US6149412 Rotation preventing mechanism using thrust ball bearing and scroll type compressor using the same
11/21/2000US6149411 Variable flank relief for scroll wraps
11/21/2000US6149408 Coalescing device and method for removing particles from a rotary gas compressor
11/21/2000US6149405 Double wrap dry scroll vacuum pump having a compressed gas cooling passage disposed in the scroll shaft
11/21/2000US6149401 Variable discharge-amount compressor for refrigerant cycle
11/21/2000CA2032417C Scroll compressor with discharge valves
11/14/2000US6146119 Pressure actuated seal
11/14/2000US6146118 Oldham coupling for a scroll compressor
11/14/2000US6146117 Scroll hydraulic machine
11/08/2000CN1272906A Multi-stage capacity control scroll compressor
11/07/2000USRE36949 Fluid machine having screw rotors with a straight portion to be chucked
11/07/2000US6142759 Two-shift fluid machine
11/07/2000US6142756 A vane of a compressor is made of solid phase sintering material of which a sintering density is not less than 7.2g/cm3 and a hollow rate is not more than 10% and to which a chromium nitride is adhered by physical vapor deposition
11/07/2000US6142755 Scroll compressor and method of manufacturing same
11/07/2000US6142753 Scroll compressor with economizer fluid passage defined adjacent end face of fixed scroll
11/02/2000WO2000065236A1 Small-sized compressor
11/01/2000CN1272171A Adaptive control for refrigeration system using pulse width modulated duty cycle scroll compressor
10/2000
10/31/2000US6139299 Conjugate screw rotor profile
10/31/2000US6139298 Shaft structure in screw rotor of screw fluid assembly
10/31/2000US6139295 Bearing lubrication system for a scroll compressor
10/31/2000US6139294 Stepped annular intermediate pressure chamber for axial compliance in a scroll compressor
10/31/2000US6139293 Rotation inhibiting mechanism for movable scroll of scroll type fluid machine
10/31/2000US6139292 Scroll-type fluid displacement apparatus including oldham coupling mechanism and method for manufacturing such apparatus
10/31/2000US6139291 Scroll machine with discharge valve
10/31/2000US6139287 Scroll type fluid machine
10/31/2000US6138646 Rotary fluid mover
10/26/2000WO2000063533A1 Vacuum pump oil distribution system with integral oil pump
10/26/2000CA2367483A1 Vacuum pump oil distribution system with integral oil pump
10/25/2000EP1046818A2 Capacity controller of a compressor with variable capacity
10/25/2000CN2402838Y Brake boosting vacuum pump for motor vehicle
10/25/2000CN2402837Y Magnetic transmission leakless gas compressor
10/25/2000CN2402836Y Cantilever screw dry type vacuum pump
10/25/2000CN1271402A Generalized mininum diameter scroll component
10/24/2000US6135743 Rotary piston pump
10/24/2000US6135739 Scroll compressor
10/24/2000US6135738 Scroll compressor having a discharge port in the moveable scroll
10/24/2000US6135737 Scroll hydraulic machine
10/24/2000US6135720 Air compressors of sliding vane eccentric rotor type
10/24/2000CA2182834C Scroll type fluid machine
10/19/2000DE19916983A1 Screw compressor with variable RPM governing has slide with radially disposed outlet port, and by axial extent in all positions overlaps rotors with exception of radially disposed outlet port
10/18/2000CN1270661A Sliding member and refrigerating compressor using the same
10/17/2000US6132195 Rotary compressor
10/17/2000US6132192 Scroll compressor made of silicon containing aluminum alloy
10/17/2000US6132191 Check valve for scroll compressor
10/17/2000US6132179 Scroll type compressor enabling a soft start with a simple structure
10/17/2000US6132103 Rotor provided with shaft pivots
10/12/2000WO2000060428A1 System for regulating pressure in a vacuum chamber, vacuum pumping unit equipped with same
10/11/2000EP1043645A1 Pressure control system for a vacuum chamber, vacuum pumping unit provided with such a system
10/11/2000CN2400607Y Turbocompressor with improved axial mechanism
10/10/2000US6129535 Twin feed screw
10/10/2000US6129534 Vacuum pumps
10/10/2000US6129532 CO2 compressor
10/10/2000US6129531 Open drive scroll machine
10/04/2000EP1041286A2 Scroll compressor with reverse rotation prevention
10/04/2000CN1268651A Heat pump having noise proof function
10/03/2000US6126425 Positive displacement pump
10/03/2000US6126423 Preloaded spring mount for crank pin/rotor bearing assembly
10/03/2000US6126421 Scroll type compressor in which a sealing is improved between scroll members
10/03/2000US6126039 Method and apparatus for accurately dispensing liquids and solids
09/2000
09/28/2000WO2000057062A1 Pump for generating pressure or negative pressure
09/28/2000WO2000057061A1 A rotary piston compressor
09/28/2000WO2000057028A1 Spherical positive-displacement rotary machine
09/27/2000EP1039136A2 Scroll machine with discharge valve
09/27/2000CN2398449Y Multi-air-chamber rolling rotor type compressor
09/27/2000CN2398448Y Vane air compressor
09/27/2000CN2398447Y Rolling rotor type compressor
09/27/2000CN2398446Y Multistage double-jaw type rotor vacuum pump
09/27/2000CN1267794A Closed rotating compressor
09/27/2000CN1267793A Vortex machine with discharge valve
09/27/2000CN1267792A Rolling rotor type compressor
09/26/2000US6123530 Scroll-type compressor with a slider plate for smoothing the orbiting movement of a movable scroll
09/26/2000US6123529 Scroll compressor
09/26/2000US6123527 Scroll hydraulic machine
09/26/2000US6123517 Scroll machine with capacity modulation
09/21/2000DE10010864A1 Refrigeration circuit system has expansion energy recovery unit that converts expansion energy into mechanical energy and compresses coolant flowing into cooler
09/20/2000EP1036276A1 Screw-type compressor
09/20/2000EP1036253A1 Rotary positive-displacement machines
09/20/2000EP0682740B1 Sliding vane machine
09/20/2000CN2397284Y Screw rotor new tooth form for double screw compressor
09/20/2000CN2397283Y High efficient static vortex dish for vortex compressor
09/19/2000US6120269 Scroll type compressor
09/19/2000US6120268 Scroll compressor with reverse offset at wrap tips
09/19/2000US6120255 Scroll machine with capacity modulation
09/14/2000WO2000053932A1 Rotary helical screw-type compressor
09/14/2000WO2000053931A1 Rotary helical screw-type compressor
09/14/2000WO2000053930A1 Rotary helical screw-type compressor
09/14/2000WO2000053929A1 Dry compressing orbiting spindle pump for conveying gases
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