Piston for internal combustion engines

Details Piston for internal combustion engines Piston for internal combustion engines

1979-03-20

1981-03-03

Feinberg, Craig R.

Internal-combustion engines

Cooling

Internal cooling of moving parts; e.g., hollow valves,...

123193P, F01P 104, F01P 306

Patent

active

042534291

ABSTRACT:
A piston for internal combustion engines, of the type having a crown portion and a cylindrical skirt portion in the latter of which are formed thickened portions called bosses having holes for receiving the ends of a gudgeon pin by which the piston is attached to a connecting rod, in which provision is made for avoiding thermal stresses and possible consequent damage due to the variations in wall thickness in the region of the bosses by forming therein two interior chambers each communicating with the interior of the piston and with the respective hole for receiving an end of the gudgeon pin via ducts through which the engine lubricating oil flows as a coolant when the engine is running.

REFERENCES:
patent: 3215130 (1965-11-01), Maier
patent: 3613521 (1971-10-01), Itano

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