| 摘要 |
PROBLEM TO BE SOLVED: To provide a pre-cleaner capable of equalizing an amount of air passing through an air cleaner and equalizing accumulation of foreign matters to a filter of the air cleaner by equalizing an amount of the air passing through the pre-cleaner, and capable of elongating an interval for opening the air cleaner to replace or clean the filter. SOLUTION: The pre-cleaner is interposed between an air duct for supplying air into an engine and the air cleaner connected to the air duct, and is provided with a plurality of cyclones having a plurality of blades for circulating the sucked air in a cylindrical member and having a separating and collecting part of the foreign matters included in the air. A diameter of the cyclone is larger or a lead angle of the blade is smaller as being separated from an air duct opening in a connecting part of the air duct and the pre-cleaner. COPYRIGHT: (C)2009,JPO&INPIT
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