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)
04/1983
04/12/1983CA1144423A1 Fluid pump
03/1983
03/23/1983EP0074514A1 Arrangement of a cooler and a motor having a ventilator arranged on its shaft, especially for a screw compressor installation
03/22/1983CA1143216A1 Rotary fluid pump
03/03/1983WO1983000668A1 Device for driving vacuum pump
03/01/1983US4375156 Closed loop compressed gas system with oil mist lubricated screw compressor
02/1983
02/15/1983US4373882 Discharge valve assembly for compressor
02/15/1983US4373881 Worm-type rotary fluid compressor
02/15/1983US4373880 Through-vane type rotary compressor with cylinder chamber of improved shape
02/15/1983US4373866 Process to control the delivery of a single screw compressor
02/01/1983US4371324 Helical gear machine with improved high pressure port
02/01/1983US4371323 Spiral rotation displacement machine with parallel motion devices ensuring relative torsional rigidity
01/1983
01/26/1983EP0070617A2 Scroll type fluid displacement apparatus
01/18/1983CA1139812A1 Thrust bearing/coupling component for scroll-type orbiting machinery and scroll- type machinery incorporating the same
01/12/1983EP0069604A1 Hydraulic pumps or motors with helicoidal gears (screw turbines)
01/12/1983EP0069531A2 A scroll type compressor having an improved fluid discharge mechanism
12/1982
12/28/1982US4365941 Scroll compressor provided with means for pressing an orbiting scroll member against a stationary scroll member and self-cooling means
12/22/1982EP0067307A2 Sliding-vane compressor
12/21/1982US4364714 Process to supercharge and control a single screw compressor
12/08/1982EP0066457A2 Driving support mechanism for an orbiting scroll of a scroll type fluid displacement apparatus
12/08/1982EP0066426A2 Scroll manufacturing tool
12/08/1982EP0066255A1 External-axis rotary-piston blower
12/07/1982US4362481 Rotary vane machine with rings radially constraining the vanes
12/07/1982US4362472 Rotary compressor with variable built-in volume ratio
11/1982
11/30/1982US4361417 Oil-cooled compressor
11/24/1982EP0065426A2 Scroll manufacturing tool
11/23/1982US4360327 Multipurpose, synchronous, three angle-cross compressor
11/10/1982EP0064356A1 A compressor
11/09/1982US4358247 Oil cooled compressor
11/09/1982CA1135119A1 Rotor housing of rotary fluid pump
11/02/1982US4357132 Hermetic scroll fluid discharge apparatus with pressurized fluid passage in wrap
10/1982
10/19/1982CA1133958A1 Axial compliance/sealing means for improved radial sealing for scroll apparatus and scroll apparatus incorporating the same
10/14/1982WO1982003429A1 Compact scroll-type fluid compressor
10/13/1982EP0062043A1 Method and machine for obtaining a quasi-isothermal transformation in gas compression or expansion processes.
10/06/1982EP0061698A1 Orbiting piston type fluid displacement apparatus with a rotation preventing device
09/1982
09/29/1982EP0061065A2 Scroll type fluid displacement apparatus
09/29/1982EP0061064A2 An orbiting piston type fluid displacement apparatus with rotation preventing mechanism
09/28/1982US4351160 Capacity control systems for screw compressor based water chillers
09/22/1982EP0060639A1 Improvements in screw compressors
09/22/1982EP0060496A2 Axial clearance adjustment mechanism for scroll type fluid displacement apparatus
09/22/1982EP0060495A2 An improved rotation preventing device for an orbiting piston type fluid apparatus
09/21/1982US4350480 Intermeshing screw rotor machine with specific thread profile
09/21/1982US4350479 Scrool-type fluid machine with liquid-filled force-balanced pockets
09/21/1982US4350135 Supercharging system for an internal combustion engine
09/15/1982EP0060140A1 Scroll type compressor with displacement adjusting mechanism
09/15/1982EP0059925A1 Drive mechanism for a scroll type fluid displacement apparatus
09/15/1982EP0059834A1 Compressor with refrigeration capacity control
09/14/1982US4348865 Helical gear machine with regulated outlet
09/08/1982EP0059612A2 A method, broaching tool and broaching machine, for forming scroll members for scroll-type apparatus
09/08/1982EP0059611A2 A method for forming scroll members for scroll-type apparatus
09/08/1982EP0059474A1 Method and tool for manufacturing a spiral element for a scroll member used in scroll type fluid displacement apparatus
09/08/1982EP0059467A1 Method of fabricating two-piece scroll members and resulting scroll members
09/01/1982EP0058770A1 Vane motor for clockwise and anticlockwise rotation
08/1982
08/24/1982US4345886 Rotary compressor with vanes in the housing and suction through the rotor
08/10/1982US4343599 Scroll-type positive fluid displacement apparatus having lubricating oil circulating system
08/03/1982US4342548 Screw having a V-shaped groove profile for cooperating with a pinion in a compression or expansion machine
08/03/1982US4342546 Air pump with centrifugal filter
07/1982
07/20/1982US4340339 Scroll type compressor with oil passageways through the housing
07/13/1982USRE30994 Vertical axis hermetic rotary helical screw compressor with improved rotary bearings and oil management
06/1982
06/30/1982EP0055084A1 Rotary compressors of sliding vane eccentric rotor type
06/29/1982CA1126708A1 Scroll-type fluid compressor units
06/22/1982US4336007 Worm type compressor with compressed fluid escape grooves
06/22/1982US4335582 Unloading control system for helical screw compressor refrigeration system
06/09/1982EP0053342A2 Screw rotor
06/01/1982US4332535 Scroll type compressor having an oil separator and oil sump in the suction chamber
05/1982
05/26/1982EP0052461A1 Scroll-type fluid displacement apparatus with means for counteracting centrifugal forces
05/26/1982EP0052234A1 Scroll type fluid displacement apparatus with oil separating mechanism
05/18/1982US4330240 Rotary compressor with communication between chambers to provide supercharging
05/11/1982US4329129 Vaned rotor for rotary mechanisms with bearings in vane slots
05/11/1982US4329126 Method for preventing a leakage loss of gases in a screw compressor
05/05/1982EP0050974A1 Scroll member and method of producing same
04/1982
04/21/1982EP0049881A1 Scroll type fluid displacement apparatus with compression modifying means
04/20/1982US4325683 Scroll-type compressor with rotation prevention and anti-deflection means
04/15/1982WO1982001220A1 Method and machine for obtaining a quasi-isothermal transformation in gas compression or expansion processes
04/14/1982EP0049495A1 Scroll type fluid displacement apparatus
04/14/1982EP0049480A1 Scroll type fluid compressor unit
04/13/1982CA1121776A1 Compressors
04/07/1982EP0049030A1 Sliding vane type rotary compressor
03/1982
03/24/1982EP0048095A1 Pump for heavy gases
03/23/1982US4321022 Inter-engaging threaded rotor and pinion machine with multi-edged pinion tooth flanks
03/23/1982CA1120447A1 Rotating piston variable displacement machine
03/09/1982CA1119488A1 Vacuum motor
03/02/1982CA1119139A1 Rotary positive displacement machines
02/1982
02/23/1982US4316439 Rotary engine with internal or external pressure cycle
02/16/1982US4315719 Non-lubricated rotary pump with discharge through end heads
02/09/1982US4314796 Scroll-type compressor with thrust bearing lubricating and bypass means
02/02/1982CA1117501A1 Rotary piston compressor
01/1982
01/19/1982US4311440 Pump
01/13/1982EP0043702A2 Scroll-type fluid displacement apparatus with chamber-pressure equalizing means
01/13/1982EP0043701A2 Capacity control for a scroll-type fluid displacement apparatus
12/1981
12/23/1981EP0042027A1 Soren-rotor expansion engine
12/08/1981US4304535 Scroll-type compressor units with minimum housing and scroll plate radii
12/01/1981US4303379 Scroll-type compressor with reduced housing radius
11/1981
11/17/1981US4300875 Positive displacement machine with elastic suspension
11/11/1981EP0039623A1 Improvements in or relating to scroll-type fluid displacement apparatus
11/10/1981US4299097 Vane type compressor employing elliptical-circular profile
11/10/1981CA1112224A1 Rotary positive displacement machines
10/1981
10/27/1981US4296936 Seal mechanism for the rotor periphery of a rotary piston engine
10/21/1981EP0038152A1 Improvements in scroll-type fluid displacement apparatus
10/14/1981EP0037728A1 Improvements in scroll-type fluid compressors
10/14/1981EP0037658A1 Balancing means for a scroll-type fluid displacement apparatus
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