Heat-insulating structure of swirl chamber and its production me

Details Heat-insulating structure of swirl chamber and its production me Heat-insulating structure of swirl chamber and its production me

1990-07-27

1991-11-19

Wolfe, Willis R.

Internal-combustion engines

Precombustion and main combustion chambers in series

Chamber temperature control means

123271, F02B 1908, F02B 1916

Patent

active

050657143

ABSTRACT:
In a heat-insulating structure of a swirl chamber and its production method in accordance with the present invention, each swirl chamber block for forming a swirl chamber and a jet port is made of a ceramic material in such a manner as to make the thickness of the jet port formation portion greater than that at other portions, a metallic outer block is disposed to the outer surface of each swirl chamber block by casting so as to control the residual compressive stress, which is to be imparted to the swirl chamber block, to be great at the jet port formation portion and thus to improve the strength of the swirl chamber block, and the temperature of each swirl chamber is controlled uniformly by changing the contact area between a cylinder head and the outer block so as to reduce the thermal stress.

REFERENCES:
patent: 4616611 (1986-10-01), Ogawa et al.
patent: 4644926 (1987-02-01), Sakurai et al.
patent: 4676207 (1987-06-01), Kawamura et al.
patent: 4681074 (1987-07-01), Ogawa et al.
patent: 4699102 (1987-10-01), Taniguchi
patent: 4834042 (1989-05-01), Wakasa et al.
patent: 4844037 (1989-07-01), Miyakawa et al.
patent: 4875939 (1989-10-01), Miyakawa et al.

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