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:
Aug. 01, 2006
Filed:
Mar. 23, 2004
Bahram Nikpour, Huddersfield, GB;
Andrew Day, Golcar, GB;
Roy Saxton, Meltham, GB;
John Bywater, Crosland Moor, GB;
Bahram Nikpour, Huddersfield, GB;
Andrew Day, Golcar, GB;
Roy Saxton, Meltham, GB;
John Bywater, Crosland Moor, GB;
Abstract
A compressor for compressing a gas comprises an impeller wheel () including a plurality of vanes () rotatably mounted within a housing (). The housing () has an inner wall defining a surface () located in close proximity to radially outer edges () of impeller vanes (). The compressor inlet comprises an outer tubular wall () extending forming a gas intake and an inner tubular wall () extending within the outer tubular wall () and defining an inducer portion () of the inlet. An annular gas flow passage () is defined between the inner and outer tubular walls. There is at least one downstream aperture () communicating between the annular flow passage () and the surface () of the housing () swept by the impeller vanes () and at least one upstream aperture communicating between the annular flow passage () and the inducer or intake portions of the inlet. A plurality of inlet guide vanes () are mounted within the inducer portion () of the inlet downstream of the at least one upstream aperture to induce pre-swirl in gas flowing through the inducer portion of the inlet.