Systems and methods for controlling fuel vapor flow in an engine-driven generator

US9109549B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9109549-B2
Application numberUS-201213423980-A
CountryUS
Kind codeB2
Filing dateMar 19, 2012
Priority dateMar 22, 2011
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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An engine-driven generator that controls fuel vapor flow is provided. The engine-driven generator includes an engine having an air intake, wherein the engine is configured to drive a generator. The engine-driven generator also includes a fuel tank coupled to the engine and configured to provide fuel to the engine. The engine-driven generator includes a valve coupled between the air intake of the engine and the fuel tank. The engine-driven generator also includes a control device configured to transition the valve between a first position and a second position. The first position allows fuel vapor to flow between the fuel tank and the air intake of the engine and the second position inhibits the fuel vapor from flowing between the fuel tank and the air intake of the engine.

First claim

Opening claim text (preview).

The invention claimed is: 1. An engine-driven generator comprising: an engine having an air intake passage, wherein the engine is configured to drive a generator; a fuel tank coupled to the engine and configured to provide fuel to the engine, wherein the fuel tank comprises a fuel cap having a pressure relief valve configured to release fuel vapor from the fuel tank when a pressure of the fuel vapor in the fuel tank reaches a first threshold pressure; a valve positioned betwe…

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What does patent US9109549B2 cover?
An engine-driven generator that controls fuel vapor flow is provided. The engine-driven generator includes an engine having an air intake, wherein the engine is configured to drive a generator. The engine-driven generator also includes a fuel tank coupled to the engine and configured to provide fuel to the engine. The engine-driven generator includes a valve coupled between the air intake of th…
Who is the assignee on this patent?
Laitala John P, Kropp Eric M, Jochman Nathan J, and 1 more
What technology area does this patent fall under?
Primary CPC classification F02M25/0836. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).