The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2022
Filed:
Jun. 23, 2021
Walbro Llc, Tucson, AZ (US);
Gary J. Burns, Millington, MI (US);
Andreas D. M. Dixon, Cass City, MI (US);
Eric G. Zbytowski, Caro, MI (US);
Albert L. Sayers, Caro, MI (US);
Justin T. Dolane, Cass City, MI (US);
David L. Speirs, Cass City, MI (US);
William E. Galka, Caro, MI (US);
Duried F. Rabban, Henderson, NV (US);
Bradley J. Roche, Millington, MI (US);
Walbro LLC, Cass City, MI (US);
Abstract
A throttle body assembly for a combustion engine includes a throttle body having a pressure chamber including a supply of liquid fuel, and a throttle bore with an inlet through which air is received. A throttle valve is carried by the throttle body with a valve head movable relative to the throttle bore. A metering valve is coupled to the throttle body, and has a valve element that is movable between open and closed positions. A boost venturi is located in the throttle bore and has an inner passage that is open at both ends to the throttle bore. The boost venturi has an opening through which fuel flows into the inner passage when the valve element is in the open position, wherein fuel flows from the pressure chamber to the metering valve under the force of gravity or under a pressure of less than 6 psi.