Selector valve for an internal combustion engine

Patent No. 8,707,996

Issued: April 29, 2014
PCT Filed: January 12, 2011
PCT No.: PCT/US2011/020931
371(c)(1),(2),(4) Date: July 23, 2012
PCT Pub. No.: WO2011/090855
PCT Pub. Date: July 28, 2011
Term Extension: 156 days

Inventor: Tyler; Jeff (Newark NY)
Assignee: G. W. Lisk Company, Inc. (Clifton Springs, NY)


A selector valve for independently controlling fluid between a first passage, a second passage, and a common passage, comprising: a valve housing comprising an inner chamber in communication with the outlet, having a first valve seat in communication with the first inlet and a second valve seat in communication with the second inlet, a shaft slidably extending through the housing between the first and second valve seats; first and second valve poppets slidably mounted upon the shaft within the inner chamber, each having valve faces for seating against the first and second valve seats; and a spring coaxially located around the shaft between the first and second valve poppets, pushing against the inner surfaces of the first and second valve poppets, biasing the first valve poppet and the second valve poppet away from each other and toward the first valve seat and the second valve seat.

Reference to Related Applications

This application claims one or more inventions which were disclosed in Provisional Application No. 61/297,988, filed Jan. 25, 2010, entitled "EXHAUST GAS SELECTOR VALVE FOR AN INTERNAL COMBUSTION ENGINE". The benefit under 35 USC .sctn.119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.


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