Ceramic precombustion chamber for internal combustion engine

Details Ceramic precombustion chamber for internal combustion engine Ceramic precombustion chamber for internal combustion engine

1988-05-31

1989-05-30

Argenbright, Tony M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Precombustion chamber liner or coating

123270, F02B 1916

Patent

active

048340421

ABSTRACT:
A ceramic precombustion chamber for an internal combustion engine such as a diesel engine consists of a metal ring and a ceramic body fitted in the metal ring by shrinkage fit. The ceramic body has a through-aperture for an injection nozzle and a combustion gas injection aperture. A shrinking allowance at a lower portion of the ceramic body with the metal ring is smaller than that an upper portion of the ceramic body with the metal ring, thereby decreasing surface pressures at the lower portion of the ceramic body to prevent cracks which would occur in the lower portion caused by surface pressures resulting from the shrinkage fit.

REFERENCES:
patent: 4651692 (1987-03-01), Morita et al.
patent: 4672933 (1987-06-01), Taniguchi et al.

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