Title:
LUBRICANT CONTROL VALVE FOR A SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2012/109302
Kind Code:
A3
Abstract:
A compressor system includes a lubricant reservoir, a screw compressor, and a valve. The screw compressor includes a housing defining a compression chamber having a suction port, a discharge port, a first lubricant feed port located between the suction port and the discharge port, and a second lubricant feed port located between the discharge port and the first lubricant feed port. The valve is in fluid communication with the lubricant reservoir, the first lubricant feed port via a first lubricant feed passageway, and the second lubricant feed port via a second lubricant feed passageway. The valve is movable between a first position and a second position. In the first position, the valve fluidly connects the lubricant reservoir to the first lubricant feed passageway to direct lubricant to the first lubricant feed port. In the second position, the valve fluidly connects the lubricant reservoir to the second lubricant feed passageway to direct lubricant to the second lubricant feed port.
Inventors:
HEGER JOSEPH (US)
MAYFIELD ROBERT (US)
MAYFIELD ROBERT (US)
Application Number:
PCT/US2012/024241
Publication Date:
November 01, 2012
Filing Date:
February 08, 2012
Export Citation:
Assignee:
TRANE INT INC (US)
HEGER JOSEPH (US)
MAYFIELD ROBERT (US)
HEGER JOSEPH (US)
MAYFIELD ROBERT (US)
International Classes:
F04C29/02; F04C2/107; F04C18/16; F04C29/12
Foreign References:
| US5957676A | 1999-09-28 | |||
| JPS63176689A | 1988-07-20 | |||
| US20100205952A1 | 2010-08-19 |
Other References:
See also references of EP 2673509A4
Attorney, Agent or Firm:
WEITZER, Glen, A. (100 East Wisconsin AvenueSuite 330, Milwaukee WI, US)
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