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:
May. 13, 2014
Filed:
Oct. 06, 2010
Simon Moore, Metham, GB;
Tom J. Roberts, Huddersfield, GB;
Robert L. Holroyd, Halifax, GB;
James Alexander Mcewen, Brighouse, GB;
Simon Moore, Metham, GB;
Tom J. Roberts, Huddersfield, GB;
Robert L. Holroyd, Halifax, GB;
James Alexander McEwen, Brighouse, GB;
Cummins Ltd., Huddersfield, GB;
Abstract
A variable geometry turbine comprises a turbine wheel mounted for rotation about a turbine axis within a housing, the housing defining an annular inlet surrounding the turbine wheel and defined between first and second inlet sidewalls; and a cylindrical sleeve axially movable across the annular inlet to vary the size of a gas flow path through the inlet; wherein the annular inlet is divided into at least three axially offset annular inlet portions by two or more axially spaced annular baffles disposed between the first and second inlet sidewalls; inlet vanes extending axially into at least one of the inlet portions and defining circumferentially adjacent inlet passages; and wherein each of at least two of said baffles extends radially inboard of inlet vanes which extend into at least one of the inlet portions axially adjacent the respective baffle, and wherein a distance between an inner diameter of a first baffle of said at least two of said baffles and a trailing edge of a radially innermost vane in one of said annular inlet portions adjacent the first baffle is greater than a distance between an inner diameter of a second baffle of said at least two of said baffles and a trailing edge of a radially innermost vane in one of said annular inlet portions adjacent the second baffle.