Expansible chamber devices – Piston – With enclosed insulating space in piston part
Patent
1992-03-19
1994-02-01
Look, Edward K.
Expansible chamber devices
Piston
With enclosed insulating space in piston part
92212, 92213, 1231936, F01B 3108, F16J 104
Patent
active
052824110
ABSTRACT:
This heat-insulating piston has a piston head comprising a piston head base portion consisting of a ceramic material, a heat-insulating member jointed to the piston head base portion and consisting of a whisker fired member of the same ceramic material as that of the piston head base portion, and a laminate jointed to the surface of the heat-insulating member that faces the combustion chamber, as well as to the surface that slides and consisting of the same ceramic material as that of the heat-insulating member. The heat-insulating member is stably jointed to the piston head base portion and laminate by utilizing the same ceramic material for the heat-insulating member, piston head base portion and laminate, whereby the strength of the piston head can be improved. Furthermore, the heat-insulating capability of the piston can be improved, while the thermal capacity of the laminate is made small, whereby the suction efficiency can also be improved.
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Hirai Katsunori
Matsuoka Hiroshi
Isuzu Motors Limited
Look Edward K.
Ryznic John
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