Precombustion chamber construction for an internal combustion en

Details Precombustion chamber construction for an internal combustion en Precombustion chamber construction for an internal combustion en

1988-09-08

1989-10-24

Argenbright, Tony M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Precombustion chamber liner or coating

123254, F02B 1916

Patent

active

048759392

ABSTRACT:
A ceramic precombustion chamber construction for an internal combustion engine including a precombustion chamber formed by a ceramic body to be inserted in a precombustion chamber receiving cavity of a metal cylinder head. Projections are formed on an outer circumferential surface of a metal sleeve fitted on the ceramic body, or on an inner circumferential surface of the precombustion chamber receiving cavity of a metal cylinder head, or on an outer circumferential surface of the ceramic body. Thermal insulating spaces are formed by the projections and the inner circumferential surface of the precombustion chamber receiving cavity or the outer circumferential surface of the metal sleeve or the outer circumferential surface of the ceramic body. One of the projections is formed with a glow-plug receiving aperture which communicates with a glow-plug receiving aperture formed in the precombustion chamber receiving cavity of the metal cylinder head. As a result, leakage of burnt gases is prevented to ensure a complete thermal insulating effect.

REFERENCES:
patent: 3398726 (1968-08-01), Bricoot
patent: 4126106 (1978-11-01), Witzky
patent: 4616611 (1986-10-01), Ogawa et al.
patent: 4699102 (1987-10-01), Taniguchi

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