Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1986-03-31
1987-06-09
Cross, E. Rollins
Internal-combustion engines
Lubricators
Crankcase, pressure control
1841043, F01M 100
Patent
active
046712291
ABSTRACT:
Apparatus compatible with existing internal features of the engine block of an air-cooled gasoline driven internal combustion engine provides improved control of the temperature of the engine's lubricating oil. The apparatus utilizes a temperature-sensing wax servomotor and a piston positioned thereabove within an elongated circular cylindrical chamber. The upper extremity of the chamber communicates with a branching site of an oil conducting conduit where a first branch leads to an oil cooler device and a second branch avoids the cooler device. When the oil in the crankcase is hotter than desired, the servomotor forces the piston upwardly to cause closure of the second branch.
REFERENCES:
patent: 4027643 (1977-06-01), Feenan et al.
patent: 4367699 (1983-01-01), Evans
patent: 4512300 (1985-04-01), DeVore
patent: 4520767 (1985-06-01), Roettgen et al.
Cross E. Rollins
Rainer Norman B.
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