Method of making low cost cast-in-place port liner

Details Method of making low cost cast-in-place port liner Method of making low cost cast-in-place port liner

1977-11-09

1979-09-11

Crane, Daniel C.

Metal founding

Process

Shaping a forming surface

291564WL, 123193H, 60322, 138149, B22D 1908

Patent

active

041672070

ABSTRACT:
A method and apparatus for insulating the exhaust passage of an internal combustion engine is disclosed. A three-zone liner assembly is provided with an outer zone comprised of a room temperature vulcanizing silicone sleeve, an inner zone comprised of a stamped and seam welded high strength Al-Cr-steel alloy, and an intermediate zone consisting of a ceramic wool mat. The liner assembly is supported or enclosed within a mild carbon sheet metal sleeve which in turn may be bonded to the engine passage wall by use of a room-temperature-vulcanized silicone if of the insert type, or by fusion bonding during casting if of the cast-in-place type.

REFERENCES:
patent: 1866256 (1932-07-01), Heineman
patent: 2170015 (1939-08-01), Ford
patent: 2232098 (1941-02-01), Deichman
patent: 3949552 (1976-04-01), Kaneko et al.
patent: 4031699 (1977-06-01), Suga et al.
patent: 4077458 (1978-03-01), Hayashi et al.
patent: 4103487 (1978-08-01), Yamazaki et al.

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