Patent ID: 6520488
Filing Date: 2003-02-18
Classification: F02M,Y10S

Abstract:
A power valve for a carburetor for an internal combustion engine, comprising:a substantially radially symmetric housing having a central axis and including a tubular aperture extending concentrically therethrough, said tubular aperture having an inlet seat and an outlet end, said inlet seat being in fluid communication with a source of liquid fuel for the engine, said housing including a flange portion flaring outwardly from said tubular aperture; a diaphragm having one side in fluid communication with the partial vacuum produced by the engine, said diaphragm being disposed in a first position when said vacuum is low and a second position when said vacuum is not low; a plunger operably coupled at one end thereof to the other side of said diaphragm and being slidingly disposed within said tubular aperture, said plunger having an inlet end adapted to seat against said inlet seat of said tubular aperture and thereby substantially prevent the fuel from entering said tubular aperture when said plunger is in said second position, said inlet end of said plunger being adapted to be unseated from said inlet seat and thereby substantially permit the fuel to enter said tubular aperture when said plunger is in said first position, wherein said flange portion includes more than two substantially rectangular apertures therethrough, said apertures being in fluid communication with said outlet end of said tubular aperture.