Aspirator and ejector system

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United States of America Patent

PATENT NO 9845773
SERIAL NO

14334094

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Importance

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
DAYCO IP HOLDINGS LLC1650 RESEARCH DRIVE SUITE 200 TROY MI 48083

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fletcher, David E Flint, US 65 376
Gilmer, Matt Whitmore Lake, US 15 220
Graichen, Brian M Leonard, US 65 442
Long, Steve Berkley, US 5 13
Niedert, Andrew New Hudson, US 46 259

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