Title:
PISTON FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JPS59145343
Kind Code:
A
Abstract:
Piston for internal combustion engine, such as for a free piston engine, of the type comprising one assembly of two co-axial pistons, the inner cylinder having an external diameter which is substantially less than the inner diameter of the outer cylinder, thus defining a closed annular chamber designed to receive a cooling fluid. Longitudinal ribs are provided in the closed annular chamber which ribs extend over most of the height of said chamber and are inclined in alternate directions with respect to the piston axis, thus defining in said chamber, a succession of adjacent longitudinal channels whose section increases from one end of the piston to the other.
Inventors:
OOGIYUSUTO MOWAARU
Application Number:
JP1319784A
Publication Date:
August 20, 1984
Filing Date:
January 26, 1984
Export Citation:
Assignee:
BMB
International Classes:
F02B71/00; F01P3/06; F02F3/16; F02F3/18; F16J1/09; (IPC1-7): F02B71/00; F02F3/00; F02F3/16; F16J1/09
Attorney, Agent or Firm:
Yoshio Kawaguchi