Ventilating arrangement for the crankcase of an internal combust

Details Ventilating arrangement for the crankcase of an internal combust Ventilating arrangement for the crankcase of an internal combust

1996-03-12

1997-04-22

McMahon, Marguerite

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F01M 1304

Patent

active

056221568

ABSTRACT:
In a ventilating arrangement for an internal combustion engine, a venting line for supplying venting gases from the engine crankcase to the air intake pipe includes an oil separator from which an oil return line extends downwardly on the outside of the engine crankcase front wall into an upwardly open oil pocket also arranged on the outside of the crankcase front wall so as to form a siphon therewith through which the oil can return from the oil separator to the oil sump in the oil pan under the crankcase against the excess pressure normally developing therein during engine operation.

REFERENCES:
patent: 2493617 (1950-01-01), Chubbuck
patent: 2642052 (1953-06-01), Wagner et al.
patent: 4517951 (1985-05-01), Otaka et al.
patent: 4958613 (1990-09-01), Hiraoka et al.
patent: 5542402 (1996-08-01), Lee et al.

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