Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1996-08-08
1997-07-15
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
F02M 906
Patent
active
056480237
ABSTRACT:
A motorcycle vacuum response type carburetor comprises a carburetor body having an upper portion, a lower portion, a diaphragm device disposed at the upper portion and a floating member disposed at the lower portion. The diaphragm device has a diaphragm chamber and a diaphragm comprised of hydrogen impregnated nitrile butadiene rubber separating the diaphragm chamber into an upper section and a lower section. A venturi passage extends horizontally through the carburetor body and a guide passage extends through the venturi passage. The guide passage has an upper end portion in communication with the lower section of the diaphragm chamber. A piston valve is movably disposed in the guide passage and has a head portion fixed to a central portion of the diaphragm. A needle valve for adjusting a jetting amount of a fuel is mounted to a lower portion of the piston valve and extends into the float chamber. A first communication passage communicates the lower section of the diaphragm chamber to the atmosphere. A second communication passage extends through the piston valve for communicating the upper section of the diaphragm chamber to the venturi passage. The second communicating passage has an opening at a lower end thereof which opens from a lower end portion of the piston valve and is in close proximity to the needle valve.
REFERENCES:
patent: 3342463 (1967-09-01), Date et al.
patent: 3460814 (1969-08-01), O'Neill
patent: 3784172 (1974-01-01), Sato et al.
patent: 4300490 (1981-11-01), Hattori et al.
patent: 4323521 (1982-04-01), Morgenroth
Patent Abstracts of Japan, vol. 11, No. 388 (M-652) 18 Dec. 1987.
Patent Abstracts of Japan, vol. 13, No. 296 (M-846) 10 Jul. 1989.
Miles Tim R.
Suzuki Kabushiki Kaisha
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