Valve cover joint seal assembly

Details Valve cover joint seal assembly Valve cover joint seal assembly

1994-01-21

1994-11-29

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 9037, 1231933, 277170, 277235B, F01M 910

Patent

active

053679938

ABSTRACT:
A valve cover assembly for an internal combustion engine has an integrally formed spark plug tube extending therethrough and into a cylinder head. The blind joint between the spark plug tube and the cylinder head surface against which it abuts is provided with a unique joint seal assembly wherein a flange surface generally parallel to the cylinder head surface is provided on the outer periphery of the tube and the tube is reversely tapered from the flange to the end thereof. An elastomeric sealing ring is mounted on and retained in place by the reverse taper below the flange and abuts against the cylinder head. The ring is thus retained on the tube during installation and removal of the valve cover from the cylinder head while growth of the ring due to the hot oil environment is accommodated by the radial extent of the flange surface.

REFERENCES:
patent: 3184247 (1965-05-01), Leutwyler
patent: 3822763 (1974-07-01), Adams et al.
patent: 4027644 (1977-06-01), Timour
patent: 4494491 (1985-01-01), Takada et al.
patent: 4544049 (1985-10-01), Shellhause
patent: 5101777 (1992-04-01), Onishi et al.
patent: 5228420 (1993-07-01), Furuya et al.
patent: 5285754 (1994-02-01), Bell

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