Engine air/fuel mixing apparatus

US7628387B1 · kind B1 · utility

Assignee

• Briggs & Stratton, LLC · US

Inventors

• Max W. Clouse · Watertown, US
• Aaron Halfmann · West Bend, US
• David Roth · North Fond du Lac, US
• James J. Dehn · Brookfield, US
• Kyle Clasen · Hartford, US
• Donald Szopinski · Hartland, US
• Matthew Martinek · Cedarburg, US
• Brian Paul · West Bend, US
• James D. Makiya · Wauwatosa, US

Key dates

• Filing date: Jul 3, 2008
• Grant date: Dec 8, 2009
• Expiry date: Jul 18, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S261/74
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An air/fuel mixing apparatus, configured for use with an internal combustion engine, includes a body defining a passageway therein, a throttle lever including a cam surface, a throttle valve positioned in the passageway and responsive to movement of the throttle lever, a choke lever including a follower surface configured to be engaged by the cam surface, and a choke valve positioned in the passageway and responsive to movement of the choke lever and the throttle lever. The air/fuel mixing apparatus also includes a solenoid configured to disengage the choke lever from the throttle lever, and move the choke valve to a substantially-opened position.