U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Rotary screw compressor with inlet chamber

Patent 5120207 Issued on June 9, 1992. Estimated Expiration Date: Icon_subject June 24, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2963884

Method and device for intermediate cooling in an oil-injected multi-stage screw compressor
Patent #: 4452575
Issued on: 06/05/1984
Inventor: Schibbye ,   et al.

Lubrication arrangement, in an air compressor
Patent #: 4761123
Issued on: 08/02/1988
Inventor: Sowards ,   et al.

Rotor anti-reverse rotation arrangement in a screw compressor Patent #: 4762469
Issued on: 08/09/1988
Inventor: Tischer

Inventor

Assignee

Application

No. 720539 filed on 06/24/1991

US Classes:

418/181, COMBINED418/201.1Helical or herringbone

Examiners

Primary: Bertsch, Richard A.
Assistant: Cavanaugh, David L.

Attorney, Agent or Firm

International Classes

F04C 018/16
F04C 029/02

Foreign Application Priority Data

1989-02-01 SE

Abstract

The invention relates to a rotary screw compressor with liquid-injection means. The axes of the rotors (18, 20) are in a horizontal plane and the inlet channel (26) reaches the compressor from below. According to the invention there are provided means for preventing that liquid leaking out from the working space of the compressor through the inlet port (46) reaches the inlet channel (26). These means include partition walls (34, 36) mounted in an inlet chamber (28) connecting the inlet channel (26) to the inlet port (46).

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