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Class Information
Number: 418/98
Name: Rotary expansible chamber devices > Heat exchange or non-working fluid lubricating or sealing > Non-working and working fluids intermix in working chamber > Non-working fluid initially directed to shaft bearing
Description: Apparatus in which the nonworking fluid is initially directed to impinge on the shaft trunnions or bearings of the device from whence it passes to enter into a zone of lower pressure of the working chamber.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614862 |
Water-injected screw compressor element |
Nov. 10, 2009 |
| 7553142 |
Lubrication system for compressor |
Jun. 30, 2009 |
| 7510381 |
Lubricating system for a rotary compressor |
Mar. 31, 2009 |
| 7404706 |
Scroll fluid machine having oil-supply holes being formed through a reinforcement bearing plate on a rear surface of the orbiting scroll |
Jul. 29, 2008 |
| 7314359 |
Vane pump for continuously variable transmission |
Jan. 1, 2008 |
| 7104772 |
Screw compressor |
Sep. 12, 2006 |
| 7090476 |
Rotary fluid machine |
Aug. 15, 2006 |
| 7040882 |
Water-injected screw-type compressor |
May. 9, 2006 |
| 7021912 |
Scroll fluid machine |
Apr. 4, 2006 |
| 6688868 |
Screw compressor injected with water |
Feb. 10, 2004 |
| 6520758 |
Screw compressor assembly and method including a rotor having a thrust piston |
Feb. 18, 2003 |
| 6422844 |
Screw compressor |
Jul. 23, 2002 |
| 6302667 |
Oil-free screw rotor apparatus |
Oct. 16, 2001 |
| 6258293 |
Refrigeration cycle |
Jul. 10, 2001 |
| 6190149 |
Vacuum pump oil distribution system with integral oil pump |
Feb. 20, 2001 |
| 6149408 |
Coalescing device and method for removing particles from a rotary gas compressor |
Nov. 21, 2000 |
| 6079966 |
Compressor housing |
Jun. 27, 2000 |
| 6019585 |
Oil-sealed vane-type rotary vacuum pump with oil feed |
Feb. 1, 2000 |
| 5727936 |
Rotary displacement compressor with liquid circulation system |
Mar. 17, 1998 |
| 5685703 |
Hermetically sealed rotary compressor having an oil supply passage to the compression compartment |
Nov. 11, 1997 |
| 5685702 |
Swash-plate machine |
Nov. 11, 1997 |
| 5593297 |
Scroll type compressor |
Jan. 14, 1997 |
| 5569028 |
Scroll compressor having a compressor housing made up of a cup-like front casing and a cap-like rear casing |
Oct. 29, 1996 |
| 5551852 |
Scroll type compressor having a seal bearing unit |
Sep. 3, 1996 |
| 5536153 |
Non-contact vane-type fluid displacement machine with lubricant separator and sump arrangement |
Jul. 16, 1996 |
| 5531578 |
Scroll compressor |
Jul. 2, 1996 |
| 5462419 |
Pressure biased co-rotational scroll apparatus with enhanced lubrication |
Oct. 31, 1995 |
| 5449279 |
Pressure biased co-rotational scroll apparatus with enhanced lubrication |
Sep. 12, 1995 |
| 5411385 |
Rotary compressor having oil passage to the bearings |
May. 2, 1995 |
| 5405253 |
Rotary vane gas compressors |
Apr. 11, 1995 |
| 5253988 |
Gear pump |
Oct. 19, 1993 |
| 5252048 |
Fluid compressor having improved Oldham mechanism |
Oct. 12, 1993 |
| 5249931 |
Axial flow fluid compressor with oldram coupling |
Oct. 5, 1993 |
| 5222885 |
Horizontal rotary compressor oiling system |
Jun. 29, 1993 |
| 5199858 |
Oil injection type screw compressor |
Apr. 6, 1993 |
| 5190450 |
Gear pump for high viscosity materials |
Mar. 2, 1993 |
| 5178522 |
Method and apparatus for supplying oil to a vacuum pump |
Jan. 12, 1993 |
| 5037282 |
Rotary screw compressor with oil drainage |
Aug. 6, 1991 |
| 5033944 |
Lubricant circuit for a compressor unit and process of circulating lubricant |
Jul. 23, 1991 |
| 5024588 |
Rotary compressor and process of compressing compressible fluids with intake and discharge through piston shaft and piston |
Jun. 18, 1991 |
| 5012896 |
Lubricating system for rotary horizontal crankshaft hermetic compressor |
May. 7, 1991 |
| 4984974 |
Screw type vacuum pump with introduced inert gas |
Jan. 15, 1991 |
| RE33473 |
Oil feeding device for scroll fluid apparatus |
Dec. 4, 1990 |
| 4923377 |
Self-machining seal ring leakage prevention assembly for rotary vane device |
May. 8, 1990 |
| 4911623 |
Method and apparatus for lubricating a rotary engine |
Mar. 27, 1990 |
| 4892469 |
Compact scroll-type fluid compressor with swing-link driving means |
Jan. 9, 1990 |
| 4834634 |
Sliding-vane rotary compressor for bearing lubrication |
May. 30, 1989 |
| 4780061 |
Screw compressor with integral oil cooling |
Oct. 25, 1988 |
| 4773836 |
Rotary vane pump |
Sep. 27, 1988 |
| 4759698 |
Rotary compressor with oil conveying means to shaft bearings |
Jul. 26, 1988 |
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