Air filter for internal combustion engines

Details Air filter for internal combustion engines Air filter for internal combustion engines

1994-05-11

1995-03-28

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

55313, 553853, 55DIG28, F02B 7700

Patent

active

054007534

ABSTRACT:
An air filter for an internal combustion engine which has a filter insert is arranged in a housing having a clean air outlet and an unfiltered air inlet provided with a screen. An auxiliary unfiltered air inlet is also provided which is closed by a flap under normal operating conditions but which opens under the influence of a negative pressure generated in the filter housing if the screen becomes clogged because of snow or ice entrained in the air stream, so that air can enter the filter through the auxiliary air inlet.

REFERENCES:
patent: 1853496 (1932-04-01), Blair
patent: 3077715 (1963-02-01), Carroll
patent: 3203158 (1965-08-01), Zadra
patent: 4273564 (1981-06-01), Sugie et al.

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