Liquid-cooled composite piston

Details Liquid-cooled composite piston Liquid-cooled composite piston

2011-05-03

2011-05-03

McMahon, M. (Department: 3783)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

C123S041350, C092S220000

Reexamination Certificate

active

07934482

ABSTRACT:
The invention proposes a liquid-cooled assembled piston (1) having an upper part (2) and a lower part (3), wherein the upper part (2) and the lower part (3) are connected to one another by means of a radially outer annular support (12) and by means of a radially inner annular support (11). An outer cooling duct (13) is arranged between the outer support (12) and the inner support (11), and an inner cooling duct (18) is arranged radially within the inner support (11). Here, the outer cooling duct (13) is connected to the inner cooling duct (18) by means of at least one overflow duct (22, 22′).

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International Search Report.

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