Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
02/1995
02/14/1995CA1334397C Scroll compressor
02/08/1995EP0637691A1 Rotary pump and rotor-shaft subassembly for the use therein
02/08/1995CN1098480A Rotary compressor with oil injection
02/07/1995US5387272 Highly ductile sintered aluminum alloy, method for production thereof and use thereof
02/02/1995WO1995003478A1 Synchronizer assembly for a scroll fluid device
01/1995
01/31/1995US5385458 Vane-type rotary compressor
01/26/1995WO1995002767A1 Rotary screw compressor
01/26/1995WO1995002765A1 Method of molding spiral body for scroll compressors
01/25/1995EP0635094A1 Scroll machine
01/24/1995US5383774 Rotary compressor having blade integrated in roller
01/24/1995US5383773 Orbiting rotary compressor having axial and radial compliance
01/24/1995US5383772 Scroll compressor stabilizer ring
01/18/1995EP0633980A1 Scroll machine with overheating protection.
01/18/1995CN2187688Y Two-direction mill type compressor for air conditioner
01/18/1995CN2187687Y Roots blower
01/17/1995US5382144 Oldham ring of scroll type compressor
01/17/1995US5382143 Scroll type compressor having a thrust plate in a frame recess
01/17/1995CA2018207C Axial sealing mechanism for a scroll type compressor
01/12/1995WO1995001509A1 A fixed vane rotary compressor
01/12/1995DE4421771A1 Rotary-slide compressor
01/12/1995DE4325082A1 Arrangement for controlling hydraulic drives for power-regulated screw compressors
01/11/1995CN1097242A Check valve of vortex compressor
01/10/1995US5380177 Positive displacement machine with planetary motion and hypertrochoidal geometry
01/10/1995US5380176 Valved discharge mechanism in a refrigerant compressor
01/10/1995US5379516 Scroll compressor pump cartridge assembly
01/04/1995EP0632201A1 Scroll compressor oil pumping system
01/03/1995US5378129 Elastic unloader for scroll machines
01/03/1995US5377649 Lubricating device for engine-driven supercharger
01/03/1995US5377407 Manufacturing a screw rotor for use in a hydraulic machine
01/03/1995CA1333789C Scroll type fluid apparatus
12/1994
12/28/1994EP0630445A1 Compressor slide valve control
12/28/1994EP0630441A1 Screw compressor providing thrust bearing force compensation
12/28/1994CN1096857A Vortex compressor
12/27/1994US5375986 Oil pump for a closed type compressor
12/22/1994WO1994029596A1 Positive displacement machine with electronic motor synchronisation
12/22/1994DE4422315A1 Spiral compressor
12/21/1994EP0629778A2 Regulating device for screw-type compressors
12/21/1994CN1096569A 压缩机 Compressor
12/21/1994CN1027095C Scroll type compressor
12/20/1994US5374173 Fluid rotating apparatus with sealing arrangement
12/20/1994US5374172 Rotary univane gas compressor
12/20/1994US5374171 Rotary compressor thrust washer
12/20/1994US5374170 Screw vacuum pump
12/20/1994US5374166 Motor driven fluid compressor within hermetic housing
12/20/1994US5373819 Rotary piston machine and method of manufacturing piston
12/17/1994CA2121763A1 Regulating device with starting and stopping device for screw-type compressors, and starting and stopping device used hereby
12/14/1994EP0513212B1 Rotary screw machine having thrust balancing means
12/13/1994US5372490 Scroll compressor oil pumping system
12/13/1994US5372489 Two stage vane type compressor
12/13/1994CA2080877C Pressure ratio responsive unloader
12/08/1994DE4318737A1 Rotary piston compressor
12/07/1994EP0627559A1 Inspection system for a defective rotation preventing device in an orbiting member of a fluid displacement apparatus
12/06/1994US5370513 Scroll compressor oil circulation system
12/06/1994US5370512 Scroll type compressor having a leak passage for the discharge chamber
12/06/1994US5370508 Positive-displacement machine having orbital motion
11/1994
11/29/1994US5368457 Fluid compressor having a molded helical blade
11/29/1994US5368456 Fluid compressor with bearing means disposed inside a rotary rod
11/29/1994US5368455 Gear-type machine with flattened cycloidal tooth shapes
11/29/1994US5368446 Scroll compressor having high temperature control
11/24/1994WO1994027051A1 Rotary compressor
11/24/1994WO1994027049A1 Pumping process for operating a multi-phase screw pump and pump
11/24/1994WO1994022064A3 Quieted air compressor
11/23/1994EP0625640A1 Refrigerant displacement apparatus with thermal protection device
11/23/1994EP0625244A1 Scroll compressor.
11/23/1994CN1095455A Rotative fluid equipment
11/23/1994CN1095454A Method and apparatus for assembling electric motors capable of employing casing body having low dimensional accuracy
11/22/1994US5366359 Scroll compressor orbital scroll drive and anti-rotation assembly
11/22/1994US5366358 Oil free scroll vacuum pump
11/22/1994US5366352 Thermostatic compressor suction inlet duct valve
11/17/1994DE4316195A1 Oil-sealed vacuum pump with pressure-oil lubrication
11/17/1994DE4315413A1 Rotary piston pump with adjustable casing shell
11/17/1994DE4092017C1 Spiral compressor
11/16/1994CN1026609C Motor compressor
11/15/1994US5364250 Oil-free screw compressor and method of manufacture
11/15/1994US5364247 Sealing structure for scroll type compressor
11/15/1994US5364235 Variable capacity vane compressor with axial pressure device
11/15/1994CA2063232C Scroll compressor including compliance mechanism for the orbiting scroll member
11/15/1994CA1333065C Scroll apparatus with modified scroll profile
11/10/1994DE4415875A1 Screw-type compressor
11/10/1994DE4410270A1 Filling, fluid-transport and pumping device
11/09/1994EP0623749A1 Rotary gas compressor
11/09/1994EP0623748A1 Scroll compressor
11/09/1994EP0623747A1 Scroll compressor pump cartridge assembly
11/09/1994EP0623733A1 Scroll machine sound attenuation
11/09/1994CN2182288Y Round plate shape air-filling pump for bicycle
11/08/1994US5362218 Scroll type compressor with counterweight
11/08/1994US5362211 Scroll type fluid displacement apparatus having a capacity control mechanism
11/08/1994US5362210 Scroll compressor unloader valve
11/02/1994EP0622547A1 Speed detector of scroll-type fluid machine
11/02/1994EP0622546A1 Rotary compressor with oil injection
11/01/1994US5360326 Twin helical blade fluid compressor
10/1994
10/26/1994CN1094135A Unit for discharging of compressed gas in rotative compressor
10/26/1994CN1094133A Fluid compressor
10/26/1994CN1093978A Sound abatement in rotary compressors
10/25/1994US5358393 Internal axis single-rotation machine
10/25/1994US5358392 Horizontal hermetic compressor having an oil reservoir
10/25/1994US5358391 Hermetic compressor with heat shield
10/25/1994US5358387 Oil-free scroll compressor
10/20/1994DE4412560A1 Spiral compressor
10/20/1994DE4412523A1 Screw compressor comprising a mechanism for absorbing a pressurised-gas compression reaction force