Document Type and Number:
Japanese Patent JPS6361568
Kind Code:
U
Abstract:
A diaphragm carburetor (1) with a fuel metering chamber (27) designed for easy restart when hot which includes a separate escape chamber (70) connected to the metering chamber having a second diaphragm (69) controlled exhaust valve (68). The second diaphragm (69) is subject to positive crankcase pressure during engine operation to maintain the exhaust valve (68) closed. When the engine is stopped, the exhaust valve (68) is opened by a spring (75) and fuel in the metering chamber (27) will move into the escape chamber (70) and out of the carburetor rather than be forced into the fuel mixing passage (10) and venturi (11) of the carburetor. A porous absorbent material is positioned to receive the fuel leaving the open exhaust vlave (68) and to retain it until it vaporizes and dissipates through openings (78) in the retainer atmosphere. The exhaust valve (68) may be manually operated as an option.
Application Number:
JP15554286U
Publication Date:
April 23, 1988
Filing Date:
October 09, 1986
Export Citation:
International Classes:
F02M5/10; F02M17/04; (IPC1-7): F02M17/04
Domestic Patent References:
| JP49082119B | ||||
| JPS4946334U | 1974-04-23 |