Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent
1997-02-28
1997-12-16
Solis, Erick R.
Internal-combustion engines
Charge forming device
Crankcase vapor used with combustible mixture
123196R, F02B 2506
Patent
active
056973500
ABSTRACT:
In a crank chamber venting arrangement for an internal combustion engine including a crankcase defining a crank chamber and having integrally formed in an end wall thereof an oil separating chamber disposed at the top end of the crank case, a crank chamber venting passage extending between the crank chamber and the separating chamber and a return passage extending between the separating chamber and the crank chamber and including a siphon, the crank chamber venting passage and the oil return passage including the siphon are open at the end wall of the crankcase and are closed by a cover and the separating chamber is open at the top and closed by a cylinder head mounted on the crankcase such that the passages and the separating chamber can be formed integrally during casting of the crankcase without the use of sacrificial cores.
REFERENCES:
patent: 4969422 (1990-11-01), Ishikawa
patent: 5115791 (1992-05-01), Dore
patent: 5123385 (1992-06-01), Sado et al.
patent: 5341772 (1994-08-01), Dohring et al.
patent: 5529045 (1996-06-01), Bauer et al.
patent: 5582145 (1996-12-01), Aizawa et al.
Brutsch Edgar
Rau Erhard
Bach Klaus J.
Mercedes-Benz AG
Solis Erick R.
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