Low emission fuel efficient diesel locomotive engine...

Details Low emission fuel efficient diesel locomotive engine... Low emission fuel efficient diesel locomotive engine...

2006-04-11

2006-04-11

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

Reexamination Certificate

active

07025031

ABSTRACT:
A diesel locomotive engine having a piston with a unique bowl geometry. The bowl is defined in part by a center portion having a partial spherical shape. A cone portion (22) is located adjacent the central portion. An annular toroidal surface (24) is connected to the cone portion (22) and is defined by a toroidal major diameter (Dtm) and a toroidal minor radius (Rtm). A crown rim (26) is connected to the annular toroidal surface (24) and to an upper flat rim face of a sidewall.

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patent: 6513476 (2003-02-01), Liu et al.
patent: 6705273 (2004-03-01), Liu et al.

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