Venting arrangement in an intake duct of an internal combustion

Details Venting arrangement in an intake duct of an internal combustion Venting arrangement in an intake duct of an internal combustion

1998-04-22

1999-08-31

McMahon, Marguerite

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F01M 1300

Patent

active

059440007

ABSTRACT:
In a venting arrangement for an internal combustion engine having a cylinder head with an intake duct structure consisting of plastic material and including intake passages, an inlet stub for connection to a vent pipe, and an outlet for communication with the intake passages, the intake duct structure includes a passage with a metal sleeve and a bolt extending through the metal sleeve for mounting the intake duct structure to the cylinder head while firmly engaging the metal sleeve with the cylinder head and a throttle structure which limits the vent flow from the inlet stub to the outlet intake ducts is formed in the passage adjacent the metal sleeve so as to be heated by the metal sleeve.

REFERENCES:
patent: 1525882 (1925-02-01), Padgett
patent: 4024846 (1977-05-01), MacGuire
patent: 5794602 (1998-08-01), Kimura

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