| 摘要 |
An engine air precleaner which is efficient at both low and high engine speeds as described. The precleaner has two air flow designs incorporated within it: one for a lower velocity of air flow and one for a high velocity of air flow. The dual air flow design is accomplished by an outer tubular sleeve member and an inner tubular sleeve member attached to an engine air intake stack. At low engine speeds, the air flow passes into the precleaner and through the inner tubular sleeve, causing the contaminant removal system to efficiently remove contaminants from the air. When the engine speed is increased, a valve opens allowing air to flow through tubular sleeve. Therefore, the contaminant removal system will operate substantially the same speed whether the engine is running at a lower or higher throttle.
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