Method of making a cylinder head with a port liner

Details Method of making a cylinder head with a port liner Method of making a cylinder head with a port liner

1991-08-28

1993-03-30

Echols, P. W.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2988806, 29DIG5, B23P 1500

Patent

active

051971895

ABSTRACT:
To simplify the manufacture of a cylinder head having at least one port liner surrounding a compression change passage, the port liner, a valve seat ring and a lift valve guide are welded together to make a unitary gas-passage-forming member and the cylinder head is cast around the gas-passage-forming member.

REFERENCES:
patent: 2225807 (1940-12-01), Fowler
patent: 4570585 (1986-02-01), Hayashi
patent: 4604779 (1986-08-01), Narita et al.
patent: 4676064 (1987-06-01), Narita et al.

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