Polymetallic piston-cylinder configuration for internal combusti

Details Polymetallic piston-cylinder configuration for internal combusti Polymetallic piston-cylinder configuration for internal combusti

1989-10-31

1991-01-22

Dolinar, Andrew M.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

92227, 123193C, 123193P, F02F 300, B32B 1500

Patent

active

049862340

ABSTRACT:
A piston-cylinder combination for internal combustion engines made from a varying bonded combination of two or more alloys having dissimilar coefficients of thermal expansion. By regulating the volumetric percentages of the alloys vis-a-vis their location within the piston and cylinder wall, the degree of thermal expansion experienced during operation may be controlled. The concept is especially useful for low heat rejection engines.

REFERENCES:
patent: 1478561 (1923-12-01), Faessel
patent: 2261405 (1941-11-01), Nicolle
patent: 3391613 (1968-07-01), Hocke
patent: 4466399 (1984-08-01), Hinz et al.
patent: 4495907 (1985-01-01), Kamo
patent: 4535683 (1985-08-01), Dworak et al.
patent: 4852542 (1989-08-01), Kamo et al.

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