Roots compressor

Details Roots compressor Roots compressor

2007-10-30

2007-10-30

Denion, Thomas (Department: 3748)

Rotary expansible chamber devices

With wear surface treatment or integrally plated wear layer

C418S140000, C418S206100

Reexamination Certificate

active

11259871

ABSTRACT:
A roots compressor has a housing, a rotary shaft, a rotor and a layer. The housing defines a pump chamber, a suction port and a discharge port. The suction port and the discharge port adjoin to the pump chamber. The rotary shaft is rotatably supported by the housing. The rotor is connected to the rotary shaft and contained in the pump chamber. Fluid introduced into the pump chamber through the suction port is discharged to the outside of the pump chamber through the discharge port by rotation of the rotor which is driven through the rotary shaft. The layer is formed on an inner peripheral surface of the housing, which defines the pump chamber. The layer is thinner from a side adjacent to the suction port toward a side adjacent to the discharge port in circumferential direction of the housing.

REFERENCES:
patent: 4744738 (1988-05-01), Miki et al.
patent: 5554020 (1996-09-01), Rao et al.
patent: 6206668 (2001-03-01), Teraoka et al.
patent: 2004/0265146 (2004-12-01), Kagami et al.
patent: 2005/0089414 (2005-04-01), Ohman
patent: 63-83479 (1988-04-01), None
patent: 5-231362 (1993-09-01), None
patent: 6-229248 (1994-08-01), None
patent: 10-220371 (1998-08-01), None
patent: 10-299676 (1998-11-01), None
patent: 2002-213381 (2002-07-01), None
Derwent Publication No. 2001-387195, Date: May 2001, Derwent publication is of Japanese Patent Publication No. JP 2001-123974 A, Assignee: Asahi Glass Co. Ltd.

Affiliated with

Also associated with

Rating

Roots compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roots compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roots compressor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3877880