The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2020
Filed:
Aug. 25, 2017
Applicant:
Trane International Inc., Davidson, NC (US);
Inventor:
Christopher Espelien, Holmen, WI (US);
Assignee:
TRANE INTERNATIONAL INC., Davidson, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/12 (2006.01); F16K 11/07 (2006.01); F16K 3/26 (2006.01); F01D 25/12 (2006.01); F25B 41/04 (2006.01); F25B 31/00 (2006.01); F16K 31/06 (2006.01); F16K 31/122 (2006.01); F16K 31/124 (2006.01); F16K 31/42 (2006.01); F16K 3/24 (2006.01);
U.S. Cl.
CPC ...
F16K 1/126 (2013.01); F01D 25/125 (2013.01); F16K 1/123 (2013.01); F16K 3/24 (2013.01); F16K 3/26 (2013.01); F16K 3/265 (2013.01); F16K 11/0712 (2013.01); F16K 31/0675 (2013.01); F16K 31/124 (2013.01); F16K 31/1221 (2013.01); F16K 31/42 (2013.01); F25B 31/006 (2013.01); F25B 41/04 (2013.01); F05D 2260/205 (2013.01); F05D 2260/211 (2013.01); Y10T 137/6579 (2015.04);
Abstract
A variable orifice flow device controls the flow of a fluid between a volute casing and a compressor motor casing in a compressor. The variable orifice flow device may be a shuttling valve, with positions controlled by, for example, valves controlling the flow of the fluid into a space opposite a side within the shuttling valve assembly. The variable orifice flow device may have one or more orifices through which a fluid can enter the compressor motor casing, and the surface area of the orifices may be controlled by the position of the shuttling valve.