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. 19, 2017
Filed:
Jul. 17, 2014
David E. Fletcher, Flint, MI (US);
Brian M. Graichen, Leonard, MI (US);
Matt Gilmer, Whitmore Lake, MI (US);
Andrew Niedert, New Hudson, MI (US);
Steve Long, Berkley, MI (US);
David E. Fletcher, Flint, MI (US);
Brian M. Graichen, Leonard, MI (US);
Matt Gilmer, Whitmore Lake, MI (US);
Andrew Niedert, New Hudson, MI (US);
Steve Long, Berkley, MI (US);
Dayco IP Holdings, LLC, Troy, MI (US);
Abstract
An engine system having a flowpath between a junction upstream of a turbocharger and an intake manifold that includes an ejector and an aspirator connected in parallel relative to one another within the flowpath is disclosed. The motive flow through the ejector is in the opposite direction relative to the direction of the motive flow through the aspirator, and both the ejector and the aspirator have a suction port fluidly coupled to a device requiring vacuum. The engine system also includes a first check valve disposed in control of the motive flow through the ejector and a second check valve disposed in control of the motive flow through the aspirator and may also include a control valve in fluid communication within the flowpath upstream or downstream of the ejector and the aspirator that controls the flow into and/or out of both thereof.