Valve guide arrangement for the valve stem of a valve in an inte

Internal-combustion engines – Valve – Valve head cooperates with manifold

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123 4185, 60602, F01L 308

Patent

active

044959060

ABSTRACT:
A valve guide arrangement for a valve in a bypass or shunt duct of exhaust gas ducting equipment of naturally induced or supercharged engines, in which arrangement the stem of the valve is caused to slide in a valve guide formed as a bush and fixed rigidly in a housing part and an annular space is provided under the valve guide and surrounding the valve stem and operating as a settling space, this annular space being connected with the bypass or shunt duct by means of an annular gap operating as a throttle and formed by the valve stem and the housing part.
The object of this special valve guide arrangement is to prevent valve jamming due to the solid exhaust-gas constituents found in the exhaust gas flow.

REFERENCES:
patent: 2427208 (1947-09-01), Haefeli
patent: 3104520 (1963-09-01), Cazier et al.
patent: 3826081 (1974-07-01), Van Avermaete

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