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:
Dec. 17, 2013
Filed:
Mar. 17, 2009
Stephen Garrett, Huddersfield, GB;
John Parker, Huddersfield, GB;
Stephen Garrett, Huddersfield, GB;
John Parker, Huddersfield, GB;
Cummins Turbo Technologies Limited, Huddersfield, GB;
Abstract
A variable geometry turbine comprises: a turbine wheel mounted within a housing assembly for rotation about a turbine axis, the housing assembly defining a radial gas flow inlet passage; an annular wall member defining one wall of the inlet passage and which is displaceable in a direction substantially parallel to the turbine axis to control gas flow through the inlet passage; and a linkage mechanism comprising at least one actuating member operably connected to the annular wall member to control displacement of the wall member. The actuating member extends in a direction substantially parallel to the turbine axis through an aperture defined by a retaining member such that a first bearing surface defined by the actuating member extending transverse to the turbine axis is contacted by a surface of the retaining member so as to connect the actuating member to the annular wall member. The aperture is appropriately dimensioned to define a clearance between a wall of the aperture and a portion of the actuating member located within the aperture so as to accommodate displacement of the retaining member, resulting from displacement of the annular wall member, relative to the actuating member.