Pre-cleaner for combustion engines
An apparatus for, and the method of, cleaning air, for engines and related uses are described. The apparatus and method includes an air cleaner with a body having a vertical axis and including a cylindrical wall, a solid top closure, and a bottom closure including an axial, reentrant, cleaned air outlet conduit defining with the wall a lower annular space, the wall being provided with a lateral scavenge outlet to the annular space below the upper end of the outlet conduit, with a plurality of inwardly formed spirally oriented peripheral ambient air inlet louvers spaced therearound above the upper end of the outlet conduit, and with a bleeder arrangement including a plurality of secondary ambient air inlet ports spaced around the wall above the louvers and adjacent the lid, the arrangement being designed for connection of the outlet conduit to the inlet of an engine, to enable air flow to the engine inwardly through the louvers and the bleeder means, and for connection of the scavenge outlet to aspirating apparatus such as an aspirator actuated by the exhaust of the engine, for causing a scavenging flow of air from the annular space.
- Assignee:
- Donaldson Co Inc
- Patent Number(s):
- US 4218223
- OSTI ID:
- 6928676
- Resource Relation:
- Patent File Date: Filed date 25 Nov 1977
- Country of Publication:
- United States
- Language:
- English
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