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:
Apr. 19, 2005
Filed:
May. 30, 2003
Takumi Nonaka, Iwate-ken, JP;
Takumi Nonaka, Iwate-ken, JP;
Zama Japan, , JP;
Abstract
A carburetor is provided that supplies an appropriate amount of fuel at engine start-up and in a specific range of rotational speed, and allows stable engine operation at a target rotational speed. The carburetor comprises a first fuel system (F) for metering fuel from the constant fuel chamber () with a metering needle () linked to a throttle valve (), and delivering the fuel to an air intake passage (); and a second fuel system (F) for controlling fuel compressed by a fuel pump () with an electromagnetically driven control valve () and delivering the fuel to the air intake passage (); by supplying pressured fuel controlled by the control valve () in a predetermined specific range of rotation and controlling the rotational speed during start-up and warm-up, a target rotational speed can be maintained.