Air cleaner for internal combustion engine
US4233043A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1978 |
| Grant date | Nov 11, 1980 |
| Priority date | — |
| Expiry date | Aug 30, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/28
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cleaner especially for use on small single cylinder internal combustion engines has a substantially annular air filter element of the dry paper type, removably mounted in a housing to divide the same into inner and outer compartments, the latter having an outlet for cleaned air that is connectable with the air intake port of the engine carburetor. An inlet passage for air to be cleaned which leads to the inner compartment, is so constructed that air flowing therethrough must undergo an abrupt change in direction in order to reach the inner compartment, and has an outlet so located that solid contaminants entrained in the air flowing to the inner compartment, by virtue of the tendency thereof to continue moving in the direction they were, leave the inlet passage through that outlet and hence are separated from the air before it enters the inner compartment. The entrance into the air inlet passage communicates with the high velocity region of the blower housing of the engine and is so disposed with respect thereto that to enter the inlet passage, air from the blower housing must abruptly change direction so that much of any dust and chaff entrained in the air stream bypasses t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.