Oil free screw compressor

Details Oil free screw compressor Oil free screw compressor

2005-09-27

2005-09-27

Rodriguez, William H. (Department: 3746)

Pumps

With condition responsive pumped fluid control

Expansible chamber pump distributor operation modified

C418S201100, C417S410400, C417S372000

Reexamination Certificate

active

06948915

ABSTRACT:
A screw compressor includes a compressor main body, a male rotor having a screw-like male tooth shape and a female rotor having a screw-like female tooth shape meshing with the screw-like male tooth shape or the male rotor. The male and female motors are provided within the compressor main body. A motor casing is operably connected to the compressor main body, and a high speed electric motor provided within the motor casing. The motor includes a motor rotor, a motor stator and a motor shaft for driving at least one of the male and female rotors. A speed ratio of the motor shaft and the at least one of the male and female rotors driven by the motor shaft is in a range of 2:1 to 1:2.

REFERENCES:
patent: 4664601 (1987-05-01), Uchida et al.
patent: 4767284 (1988-08-01), Shiinoki
patent: 4770615 (1988-09-01), Fujiwara et al.
patent: 4984974 (1991-01-01), Naya et al.
patent: 5246349 (1993-09-01), Hartog
patent: 5263832 (1993-11-01), Yamaguchi
patent: 5295798 (1994-03-01), Maruyama
patent: 5401149 (1995-03-01), Tsuru et al.
patent: 5454700 (1995-10-01), Iguchi
patent: 5674063 (1997-10-01), Ozaki et al.
patent: 5836754 (1998-11-01), Ozaki
patent: 5910001 (1999-06-01), Takahashi et al.
patent: 5938420 (1999-08-01), Teraoka
patent: 6371744 (2002-04-01), Mito et al.
patent: 6422844 (2002-07-01), Hioki et al.
patent: 6461112 (2002-10-01), Ohta
patent: 6652250 (2003-11-01), Yoshimura
patent: 797311 (1958-07-01), None
patent: 2019493 (1979-10-01), None
patent: 5993989 (1984-05-01), None
patent: 61205388 (1986-09-01), None
patent: 3151592 (1991-06-01), None
patent: 03172587 (1991-07-01), None
patent: 4365985 (1992-12-01), None
patent: 569389 (1993-09-01), None
patent: 6346881 (1994-12-01), None
Shigley, Joseph E., Mechanical Engineering Design, McGrawHill, NY, NY 1977.

Affiliated with

Also associated with

Rating

Oil free screw 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 Oil free screw compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil free screw compressor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3371469