Piston for an internal combustion engine and method for its...

Details Piston for an internal combustion engine and method for its... Piston for an internal combustion engine and method for its...

2007-06-08

2011-10-25

McMahon, M. (Department: 3783)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

C029S888042

Reexamination Certificate

active

08042512

ABSTRACT:
Proposed is a piston (1) for an internal combustion engine having a closed annular duct (4) which is arranged close to the piston head (5) and radially at the outside, which annular duct (4) has, at the piston head side, an annular opening (21) which, in section, has the shape of a trapezium with limbs which taper conically in the direction away from the piston head, and which is closed off by an annular closure element (3) which, in section, has the same trapezium shape as the opening (21), with the closure element (3) being fastened in the opening (21) by means of friction welding.

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