Liquid-cooled, assembled piston for internal combustion engines

Details Liquid-cooled, assembled piston for internal combustion engines Liquid-cooled, assembled piston for internal combustion engines

1978-05-22

1979-11-27

Myhre, Charles J.

Internal-combustion engines

Cooling

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

123193P, 92186, F01P 310

Patent

active

041755022

ABSTRACT:
In a liquid cooled, assembled piston for an internal combustion engine which has a lower piston part, an upper piston part connected thereto, an annular cooling passage disposed in the upper piston part behind the top land and at least part of the ring-carrying portion thereof, an input coolant conduit in the lower piston part, a central cooling chamber disposed between the two piston parts and a supporting ring concentrically disposed on the underside of the upper piston part and between the annular cooling passage and the central cooling chamber, there is provided an oil guiding ring including a flange gripped between the two piston parts and a lip connected to the flange and protruding into the annular cooling passage for effecting the flow of the oil along the periphery of the cooling passage as it enters same from the input coolant conduit.

REFERENCES:
patent: 1187737 (1916-06-01), Isham
patent: 1547687 (1925-07-01), Rohwer
patent: 3136306 (1964-06-01), Kamm
patent: 3314402 (1967-04-01), Tillack
patent: 3465651 (1969-09-01), Tromel

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