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:
Mar. 15, 2022
Filed:
Jun. 04, 2020
Applicant:
Perkins Engines Company Limited, Peterborough, GB;
Inventors:
David Wilkinson, Fletton, GB;
Prabhu Ramasamy, Peterborough, GB;
Assignee:
Perkins Engines Company Limited, Peterborough, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 37/013 (2006.01); F02B 37/18 (2006.01); F02M 31/20 (2006.01);
U.S. Cl.
CPC ...
F02B 37/013 (2013.01); F02B 37/18 (2013.01); F02M 31/205 (2013.01);
Abstract
The high pressure compressor wheel of a two stage turbocharger assembly is cooled by charge air bled from the charge air flowpath downstream of the aftercooler. A wastegate may be arranged across the high pressure stage and operated by an actuator which in turn is operable by the static or dynamic pressure of the charge air in the cooling flowpath. The cooling airflow may be blocked to open the wastegate and released or resumed to close the wastegate so that cooling air is supplied only while the high pressure compressor wheel is under load.