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:
Nov. 21, 2017
Filed:
Dec. 10, 2014
David Fletcher, Flint, MI (US);
Brian M. Graichen, Leonard, MI (US);
James H. Miller, Ortonville, MI (US);
Keith Hampton, Ann Arbor, MI (US);
Matt Gilmer, Whitemore Lake, MI (US);
Rex Bravo, Detroit, MI (US);
Andrew Niedert, New Hudson, MI (US);
David Fletcher, Flint, MI (US);
Brian M. Graichen, Leonard, MI (US);
James H. Miller, Ortonville, MI (US);
Keith Hampton, Ann Arbor, MI (US);
Matt Gilmer, Whitemore Lake, MI (US);
Rex Bravo, Detroit, MI (US);
Andrew Niedert, New Hudson, MI (US);
Dayco IP Holdings, LLC, Troy, MI (US);
Abstract
Recirculation systems for engine intake air are disclosed having a turbocharger compressor with an inlet and an outlet, a recirculation pathway connecting fluid flow from the outlet of the turbocharger compressor to fluid flow into the inlet of the turbocharger compressor, and a recirculation valve assembly controlling fluid flow through the recirculation pathway. The recirculation valve assembly includes an actuator operating a valve coupled to an aspirator assembly that produces vacuum when the fluid flows through the recirculation pathway from the inlet to the outlet and when fluid flows through the recirculation pathway from the outlet to the inlet. Fluid flows through the recirculation pathway from the outlet to the inlet when the turbocharger generates boost. The vacuum generated by the aspirator assembly is in fluid communication with the actuator to move the valve between two or more positions.