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:
Feb. 25, 2020
Filed:
Jul. 10, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Alberto Racca, Cavallermaggiore, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A variable-geometry turbocharger (VGT) for an internal combustion engine configured to generate a flow of post-combustion gases as a byproduct of generating output torque includes a turbine housing defining a volute. The VGT also includes a turbine wheel mounted on a shaft having a rotational axis, retained inside the turbine housing, and configured to be rotated about the rotational axis by the flow of post-combustion gases. The turbine housing defines an inlet to the turbine wheel downstream of the volute and upstream of the turbine wheel. The inlet to the turbine wheel includes a circumferentially continuous and unobstructed intake channel having a selectable cross-sectional area and configured to regulate effective expansion ratio of the VGT. An internal combustion engine employing such a VGT is also disclosed.