| 摘要 |
PROBLEM TO BE SOLVED: To prevent engine idling from becoming unstable with dust clogging by supplying a clean bleed air to the low-speed fuel system of a carburettor. SOLUTION: A secondary air cleaner A2 is installed consolidatedly in the upper part of a clean chamber 19 of a primary air cleaner A1 to filtrate the intake air to be supplied to a carburettor C, and a bleed air formed by filtrating part of the intake air by the secondary air cleaner A2 is supplied to the low- speed fuel system of the carburettor C upon filtrating by a tertiary air cleaner A3. A notch to take in the bleed air is formed in the element accommodation chamber in the secondary air cleaner A2, and element 64 made of a resilient material such as sponge, foaming polyurethane resin, etc., is passed through the notch an installed removably in the element accommodation chamber.
|
