Multi-port check-valve for an evaporative fuel emissions...

Details Multi-port check-valve for an evaporative fuel emissions... Multi-port check-valve for an evaporative fuel emissions...

2008-05-20

2008-05-20

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

C123S1980DA

Reexamination Certificate

active

11843992

ABSTRACT:
A multi-port check-valve for a fuel vapor emissions system coupled to an intake manifold of an internal combustion engine with forced induction and of the type including a purge canister and a purge valve, comprising a first port coupled to the purge valve, a second port in fluid communication with the first port and having a first check-valve with a fixed orifice arranged to open in response to engine vacuum, and bleed intake manifold boost pressure.

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patent: 5698780 (1997-12-01), Mizutani et al.

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