Patents
Patents for F04C 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups (16,981)
07/1999
07/22/1999DE19902243A1 Improving the security of inlet and outlet openings sealing plugs for compressors in store or transit
07/20/1999US5924855 Screw compressor with cooling
07/15/1999WO1999035402A1 Cooling device
07/15/1999CA2316822A1 Cooling device
07/14/1999CN1222652A Closed-type scroll compressor
07/14/1999CN1222645A Compressor
07/13/1999US5921761 Scroll machine with discharge duct
07/13/1999US5921273 Delivery valve assembly for compressor
07/13/1999CA2171643C Engaged rotor
07/07/1999CN2327811Y Pump for sealed holes in mines
07/06/1999US5919034 Scroll compressor and method for manufacturing an oldham ring therefor
06/1999
06/30/1999EP0926344A1 Seal structure for casing
06/30/1999EP0823025B1 Screw-type compressor with water hammer protection
06/30/1999CN2326768Y Silencing device for air pump
06/30/1999CN1221477A Scroll type fluid machine
06/30/1999CN1221076A Scroll compressor with integral outer housing and fixed scroll member
06/24/1999WO1999031355A1 Improved scroll compressor assembly
06/24/1999DE19857560A1 Pump unit without own bearing
06/23/1999EP0924433A1 Scroll-type compressor
06/23/1999EP0924432A1 Swing-link mechanism of a scroll-type compressor
06/23/1999EP0924431A1 Scroll compressor
06/23/1999EP0924430A1 Closed-type scroll compressor
06/23/1999CN1220347A Scroll-type compressor and operation method therefor
06/22/1999US5913664 Safety relief valve assembly for a fluid displacement apparatus
06/17/1999WO1999017023A3 Fluid compressor
06/17/1999WO1999015764A8 Scroll-type fluid displacement device having flow diverter, multiple tip seal and semi-radial compliant mechanism
06/16/1999EP0922860A1 Optimized location for scroll compressor economizer injection ports
06/16/1999CN1219650A Motor bearing lubrication in rotary compressors
06/16/1999CN1219649A Enhanced flow compressor discharge port entrance
06/16/1999CN1219648A Optimized location for scroll compressor economizer injection ports
06/16/1999CN1219646A Vortex-type compressor
06/09/1999EP0921317A1 Motor bearing lubrication in rotary compressors
06/09/1999EP0921316A1 Scroll compressor with radial guiding pin in eccentric bush
06/09/1999EP0921315A2 Compressor discharge port with valve
06/09/1999EP0920590A1 Dry vacuum machine with shaft passage
06/09/1999EP0920587A1 Refrigerant compressor
06/09/1999EP0839283B1 Oil-sealed vane-type rotary vacuum pump with oil feed
06/09/1999EP0839282B1 Oil-sealed vane-type rotary vacuum pump with an oil pump
06/09/1999CN1218877A Rotary compressor cylinder assembly
06/08/1999US5910161 A liquid injection type scroll compressor is used to a refrigerator using hydrocarbon fluoride which does not contain chlorine as an operating fluid
06/02/1999EP0919725A1 Compressor
06/02/1999EP0919718A2 Refrigerant compressor with cooling fan
06/02/1999EP0918936A1 Drive apparatus, such as a liquid ring machine and a method for driving a drive apparatus, such as transferring fluid
06/02/1999CN1218145A Compressor having capacity-controlling mechanism with abrasion-free cylinder
06/02/1999CN1218144A Compressor
06/02/1999CN1218143A Hermetic compressor
05/1999
05/26/1999EP0918160A1 Compressor
05/20/1999WO1999024718A1 Hermetic scroll compressor
05/19/1999EP0916848A1 Compressor having capacity-controlling mechanism with abrasion-free cylinder
05/19/1999EP0916847A1 Compressor housing
05/19/1999CN2319607Y Lubricating oil scatter
05/19/1999CN1216803A Scroll compressor with pressure equalization groove
05/18/1999US5905233 Noise suppressor for displacement compressors
05/18/1999US5904473 Vacuum pump
05/18/1999CA2252157A1 Compressor housing
05/14/1999WO1999023528A2 Electrochromic system
05/14/1999WO1999022794A1 Noise damping mounting body for cpap compressor
05/14/1999CA2308308A1 Electrochromic system
05/12/1999DE19749572A1 Vacuum pump or dry running screw compactor
05/12/1999CN2318429Y Anti-tripping device for screw pump
05/11/1999US5901559 Method of operating an oil lever regulator system
05/06/1999EP0913581A1 Scroll compressor with pressure equalization groove
05/06/1999EP0913580A1 Scroll-type fluid machine
05/06/1999EP0630441B1 Screw compressor providing thrust bearing force compensation
05/06/1999DE19748385A1 Vacuum pump or compressor
05/06/1999DE19748358A1 Elektrochromes System Electrochromic system
05/05/1999CN1215806A Improved lubrication systems for scroll compressors
05/05/1999CN1215805A Propeller structure for hermetically sealed compressor
05/05/1999CN1215804A Scroll-type fluid machine including float-protecting pin having partially-cut head
05/05/1999CN1215801A Helical impeller compressor
05/04/1999US5899677 Vane compressor having a high-pressure space formed in the cam ring
05/04/1999US5899667 Fluid compressor with seal scavenge and method
05/04/1999US5899574 Supporting structure of bearings
04/1999
04/28/1999EP0911526A1 Lubrication systems for scroll compressors
04/28/1999CN1215133A Fluid machinery
04/28/1999CA2219684A1 Vented cap
04/22/1999WO1999019631A1 Screw vacuum pump provided with rotors
04/22/1999WO1999019630A1 Cooled screw vacuum pump
04/22/1999DE19744466A1 Screw compressor for gases, with driven- and auxiliary rotors
04/21/1999CN1214410A 转子压缩机 Rotary Compressor
04/15/1999WO1999018355A1 Screw-type compressor
04/15/1999DE19846949A1 Air conditioning for electric vehicle
04/15/1999DE19745616A1 Cooling system for helical vacuum pump
04/15/1999DE19745615A1 Screw vacuum pump with rotors
04/15/1999DE19745362A1 Compressed air dewatering device
04/14/1999EP0724690B1 Device for connecting a screw rotor machine to a driving or driven pulley
04/14/1999CN1213745A 流体机械 Fluid Machinery
04/14/1999CN1213744A Scroll compressor with economizer fluid passage defined adjacent end face of fixed scroll
04/13/1999US5893355 Supercharger pulley isolator
04/13/1999CA2150632C Noise damper for hermetic compressors
04/08/1999WO1999017023A2 Fluid compressor
04/07/1999EP0907026A1 Scroll compressor with economizer fluid passage defined adjacent end face of fixed scroll
04/07/1999EP0746670B1 Meshing type rotors
04/07/1999CN2313082Y Protection device for connection screw of pump under hydrochloric-acid liquid
04/07/1999CN1042851C 旋转式压缩机 Rotary compressor
04/06/1999US5890884 Screw-type compressor with liquid lock protection
04/01/1999WO1999015764A1 Scroll-type fluid displacement device having flow diverter, multiple tip seal and semi-radial compliant mechanism
03/1999
03/31/1999EP0904492A1 Displacement machine on the spiral principle
03/31/1999CN1212333A Oil-cooled type screw compressor
03/31/1999CN1212331A Closed-type electrically-driven compressor