Diesel engine having a dual lubrication system

Details Diesel engine having a dual lubrication system Diesel engine having a dual lubrication system

1980-08-07

1983-07-12

Myhre, Charles J.

Internal-combustion engines

Lubricators

Crankcase, pressure control

123196R, 123 73AD, 184 68, 184 69, F01M 100

Patent

active

043924638

ABSTRACT:
A diesel engine has a first lubrication system, containing conventional engine oil, used to lubricate that section of the engine subjected to excessive wear--the valve train including the cam shaft, valve lifters, rocker arm, valve stems, etc., and a second lubricant system, utilizing diesel fuel, for lubricating the remaining section of the engine--the crankshaft and associated parts, pistons, connecting rods, etc. By being exposed to crankcase blowby exhaust gases, diesel fuel used to lubricate the crankshaft, etc. absorbs pollutants and contaminants contained therein and recirculates these contaminants through the fuel system to be burned and exhausted. By constantly being lubricated with fresh lubricant, wear on these specific parts is reduced. Frequent lubrication changes have been eliminated because the diesel fuel/lubricant is continuously changed and circulated through fuel system. Since the engine oil and the first lubrication system is not exposed to crankcase blowby exhausted gases, its useful life is prolonged, thus reducing the frequency of required oil changes.

REFERENCES:
patent: 2066452 (1937-01-01), Bernard
patent: 2382006 (1945-08-01), Dusevoir
patent: 2580572 (1952-01-01), McMillan
patent: 3912045 (1975-10-01), Morris
German Patent Application D1708Ia/46c published Aug. 19, 1954, German Publication "Motorrad," No. 18, 1969, p. 723.

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