Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Patent
1989-10-20
1990-12-25
Kamen, Noah P.
Internal-combustion engines
Cooling
Internal cooling of moving parts; e.g., hollow valves,...
239600, F01P 104
Patent
active
049794736
ABSTRACT:
A piston cooling assembly for cooling each of the pistons in an internal combustion engine is provided. The piston cooling assembly of the present invention, which directs a spray of cooling fluid, typically oil, to a selected targeted area of the piston with which it is associated, is installed, adjusted and removed entirely from the exterior of the engine block. The piston cooling assembly is received in a specially configured bore in the engine block and includes a flange located exteriorly of the engine block to position and secure the assembly in its desired location. A nozzle tube support attached to the flange is sealingly engaged within the engine block bore and is fluidically connected with the engine cooling fluid supply to provide a supply of cooling fluid to a nozzle tube. The nozzle tube, one end of which is supported by the nozzle tube support, sprays cooling fluid toward the targeted piston area. In an alternate embodiment, a second nozzle tube is provided to direct coolant and/or lubricant to the joint between the piston and the connecting rod.
REFERENCES:
patent: 3709109 (1973-01-01), Howe
patent: 4067307 (1978-01-01), Hofle et al.
patent: 4128110 (1978-12-01), Haytayan
patent: 4206726 (1980-06-01), Johnson, Jr. et al.
patent: 4508065 (1985-04-01), Suchdev
Sep. 1989 publication "E7 vs. E6 Product Comparison Bulletin" (Mack, Truck).
Cummins Engine Company, Inc.
Kamen Noah P.
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