Device for reducing thermal restraint

Details Device for reducing thermal restraint Device for reducing thermal restraint

1989-09-29

1990-10-16

Dolinar, Andrew M.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

123188M, F02F 142

Patent

active

049627333

ABSTRACT:
Thermal restraints associated with internal combustion engines create complex problems which must be overcome in order to provide life and durability of the engine. The present device overcomes these problems by providing a pair of notches positioned in a bridge connection at least two housings. The housings have a predetermined stiffness and the bridge has a predetermined stiffness less than that of the housings. The pair of notches extend between the housings. The thermal relief provided by the pair of notches introduces concentration factors to the low stiffness area. As a result the low stiffness area is able to expand and reduce the thermal compressive stress.

REFERENCES:
patent: 2791989 (1957-05-01), Dickson
patent: 2893371 (1959-07-01), Schafer, Jr.
patent: 3117565 (1964-01-01), Bottger et al.
patent: 3865087 (1975-02-01), Sihon
patent: 3903849 (1975-09-01), List et al.
patent: 4337735 (1982-07-01), Lichtner et al.
patent: 4426963 (1984-01-01), Lichtner
patent: 4433653 (1984-02-01), Lichtner et al.
patent: 4844030 (1989-07-01), McAvoy

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