| 摘要 |
PURPOSE: An unloader valve of an air cleaner is provided to prevent hesitation or stall of an engine, and to discharge dust automatically by restricting inflow of water into the air cleaner during traveling in the rainy season. CONSTITUTION: An unloader valve(40) of an air cleaner(20) is formed at the side of a dust pan(30) to discharge dust from a filter element. Plural discharge holes(32) are formed radially around a central hole of the dust pan to discharge dust. A rod is fitted to the central hole, and a disk valve is formed in the lower part of the rod to open and close the discharge holes at the same time. The upper part of the rod is combined with an assembling bolt fitted to the central hole in the dust pan. The valve is separated from a valve seat of the discharge hole by tare of the unloader valve in applying positive pressure to the air cleaner. Dust is discharged from the dust pan through the discharge holes.
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