| 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) |
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| 06/28/2000 | EP1013934A1 Multi-stage rotary vacuum pump used for high temperature gas |
| 06/27/2000 | US6079967 Fluid compressor |
| 06/27/2000 | US6079966 Compressor housing |
| 06/27/2000 | US6079963 Displacement type compressor and method of forming coating film |
| 06/22/2000 | WO2000036303A1 Vane type vacuum pump for automobiles |
| 06/21/2000 | EP1010893A2 Compressor with lubricating oil control |
| 06/21/2000 | EP1009934A1 Oil flow protection scheme |
| 06/21/2000 | CN1257564A Sub-sea pumping system and associated method |
| 06/21/2000 | CN1257164A Silencer for rotary compressor |
| 06/21/2000 | CN1257163A Vortex compressor |
| 06/21/2000 | CN1257162A Close type compressor |
| 06/20/2000 | US6077060 Scroll-type fluid machine including float-protecting pin having partially-cut head |
| 06/20/2000 | US6077058 Rotary compressor |
| 06/20/2000 | US6077052 Fluid compressor aftercooler temperature control system and method |
| 06/20/2000 | US6077045 Scroll-type compressor and operation method therefor |
| 06/15/2000 | DE19959422A1 Encapsulated electric compressor with refrigerant or coolant channel has electric motor driving compressor, motor chamber in housing, unequal fluid channels parallel to rotor shaft |
| 06/15/2000 | DE19847681C1 Flüssigkeitsringpumpe Liquid ring pump |
| 06/14/2000 | EP1007854A1 Pulsation damper |
| 06/14/2000 | EP1007853A1 Oil-free screw rotor apparatus |
| 06/14/2000 | EP1007852A1 Compressor having a water circulation system |
| 06/14/2000 | CN1256364A Vortex fluid machinery |
| 06/13/2000 | US6074187 Compressor |
| 06/13/2000 | US6074186 Lubrication systems for scroll compressors |
| 06/13/2000 | US6073517 Connection piece for connecting a housing of a drive unit to a housing of a compressor element |
| 06/08/2000 | DE19955262A1 Multi-axle gas compression pump arrangement has parallel shafts with drive rotor and with driven rotor, connected via drive belt to transmit rotary movement |
| 06/08/2000 | DE19953690A1 Fuel cell system has movable spirals of compressor and regenerator symmetrically coupled to opposite ends of motor shaft |
| 06/07/2000 | EP1006281A1 Multi-stage roots pump |
| 06/07/2000 | CN1053266C Rotative vacuum pump |
| 06/06/2000 | US6071104 Closed compressor having means for satisfactorily lubricating compression mechanism |
| 06/06/2000 | US6071103 Member having sliding contact surface, compressor and rotary compressor |
| 06/06/2000 | US6071101 Scroll-type fluid displacement device having flow diverter, multiple tip seal and semi-radial compliant mechanism |
| 06/06/2000 | US6071100 Scroll compressor having lubrication of the rotation preventing member |
| 06/06/2000 | US6071099 Scroll compressor having a discharge muffler |
| 06/06/2000 | US6070420 Variable refrigerant, intrastage compression heat pump |
| 06/02/2000 | WO2000031419A1 Vacuum pump |
| 05/31/2000 | EP1004774A2 Tank mounted rotary compressor |
| 05/31/2000 | EP1004773A1 Multi-stage capacity control scroll compressor |
| 05/31/2000 | EP1003974A4 Cascaded progressing cavity pump system |
| 05/31/2000 | EP1003974A2 Cascaded progressing cavity pump system |
| 05/31/2000 | DE19949730A1 Water-cooled gas supply device includes water supply system supplying coolant water to each of several work chambers to discharge heat produced therein and drain off condensation |
| 05/31/2000 | DE19854243A1 Vacuum pump has valve between pump drive coupling and load that opens a medium connection at first vacuum in load and closes it at second, lower vacuum level |
| 05/24/2000 | CN1254080A 空调器 Air Conditioner |
| 05/23/2000 | US6065948 Discharge check valve in a scroll compressor |
| 05/17/2000 | CN1253239A Oilless lubricating screw type compressor |
| 05/16/2000 | US6062834 Scroll compressor |
| 05/16/2000 | US6062832 Scroll compressor and method for manufacturing an oldham ring therefor |
| 05/11/2000 | DE19953153A1 Spiral fluid compressor has fluid outlet aperture to which fluid is transmitted by spiral transmission mechanism and flap valve with support section fixed to compressor |
| 05/11/2000 | DE19952902A1 Electrically-operated fluid pump has common cooling circuit used for cooling pump unit, intermediate drive transmission, electric motor and current regulator |
| 05/11/2000 | DE19952296A1 Fluid roller machine has fixed component with housing and two fixed roller components mounted at both ends of housing and centered on an axis of housing |
| 05/11/2000 | DE19850752A1 Rotary piston compressor in hypotrochoidal format has outer runner meshing with inner running slidingly located on eccentric whose eccentric axis is eccentrically arranged by defined value to rotary axis of outer runner |
| 05/09/2000 | US6059551 Oil injected screw compressor with thrust force reducing means |
| 05/09/2000 | US6059549 High-low pressure chamber sealing arrangement of a volute compressor |
| 05/09/2000 | US6059540 Lubrication means for a scroll-type fluid displacement apparatus |
| 05/09/2000 | US6059539 Sub-sea pumping system and associated method including pressure compensating arrangement for cooling and lubricating |
| 05/04/2000 | DE19847885A1 Apparatus used in the building industry for compressing a gaseous medium has a post condenser arranged outside of the engine chamber |
| 05/03/2000 | EP0997645A1 Scroll type fluid machine |
| 05/02/2000 | US6056524 Scroll compressor assembly |
| 05/02/2000 | US6056523 Scroll-type compressor having securing blocks and multiple discharge ports |
| 05/02/2000 | US6055827 Comprising a compressing section sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a plain bearing slidably supporting a driving shaft |
| 04/27/2000 | WO2000023714A1 Liquid ring pump |
| 04/27/2000 | DE19848413A1 Combined electric motor-pump unit e.g. for automobile central locking device, has electric motor and air pump contained in separate housings releasably coupled together |
| 04/26/2000 | EP0995037A1 Compressor assembly |
| 04/26/2000 | CN1251639A Horizontal type scroll compressor |
| 04/25/2000 | US6053715 Scroll type compressor |
| 04/25/2000 | US6053714 Scroll compressor with slider block |
| 04/25/2000 | US6053350 Sealing plug device for a refrigerant compressor |
| 04/20/2000 | WO2000022302A1 Scroll-type fluid displacement device for vacuum pump application |
| 04/20/2000 | DE19845993A1 Schraubenverdichter Screw compressor |
| 04/19/2000 | EP0994258A1 Scroll fluid machine |
| 04/19/2000 | EP0993552A1 Liquid ring pump |
| 04/18/2000 | US6050797 Screw compressor with balanced thrust |
| 04/18/2000 | US6050794 Compressor having a pump with two adjacent rocking rotors |
| 04/18/2000 | US6050793 Scroll type fluid displacement machine |
| 04/18/2000 | US6050784 Compressor having capacity-controlling mechanism with abrasion-free cylinder |
| 04/13/2000 | WO2000020761A1 Screw-type compressor |
| 04/12/2000 | EP0992690A1 Scroll Compressor |
| 04/11/2000 | US6048185 Hydraulic pumps |
| 04/06/2000 | WO2000019104A1 Vacuum pump |
| 04/05/2000 | CN1249802A Liquid ring pump |
| 04/05/2000 | CN1249403A Bearing lubricating system for vortex type compressor |
| 04/05/2000 | CN1249402A Positive displacement pump |
| 04/05/2000 | CN1249401A Axial compliant cyclic medium pressure chamber with steps for vortex type compressor |
| 04/04/2000 | US6045344 Oil-cooled type screw compressor |
| 04/04/2000 | US6045343 Internally cooling rotary compression equipment |
| 03/29/2000 | EP0989286A1 Two stage rotary vane motor |
| 03/29/2000 | EP0988453A1 Screw spindle vacuum pump and operating method |
| 03/29/2000 | CN1248678A Spiral type compressor |
| 03/29/2000 | CN1050879C Scroll compressor and air conditioner using the same |
| 03/28/2000 | US6042351 Enhanced flow compressor discharge port entrance |
| 03/28/2000 | US6042346 Refrigerant compressor having an open type refrigerant pool and an oil reservoir |
| 03/22/2000 | EP0987501A2 Air conditioner |
| 03/22/2000 | EP0987440A1 Capacity control scroll compressor |
| 03/22/2000 | EP0986692A1 Sub-sea pumping system and associated method |
| 03/21/2000 | US6039551 Gear pump for use in an electrically-operated sealed compressor |
| 03/16/2000 | DE3745097C2 Hermetisch gekapselte Motor-Kompressor-Einheit Hermetically sealed motor-compressor unit |
| 03/16/2000 | DE3745096C2 Rotationskolbenmaschine nach dem Spiralprinzip Rotary piston machine according to the spiral principle |
| 03/16/2000 | DE19942686A1 Spiral/orbital compressor made with reduced number of components has no flange components or holes made solely for positioning |
| 03/16/2000 | DE19942685A1 Spiral compressor with compression mechanism compressing gaseous fluid together with motion along spiral path compressed to produce compressed gas with output flow path |
| 03/15/2000 | EP0721545B1 Scroll apparatus with enhanced lubrication |
| 03/15/2000 | CN1247279A Compressor for refrigerating circulation |