Diesel truck road speed control

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Details

123198DB, 180178, F02B 7708

Patent

active

041789016

ABSTRACT:
Effective supervision of the road speed of a diesel truck requires termination of the operation of the engine when the truck is operated at an excessive speed. Utilizing to advantage what is already available, namely an engine shut-down control when the engine lubricating oil pressure is below a specified pressure, the device hereof provides the referred to road speed supervision in an effective manner and with minimum expense and complication. Specifically, the within road speed control contemplates creating an "artificial" loss of lubricating oil pressure, i.e. one that is not due to an actual defect or malfunction of the lubricating oil circulating system, but rather one that is responsive to the operation of the truck at an excessive speed. Said "artificial" loss of lubricating oil pressure is, of course, just as effective as an actual pressure loss in causing engine shut-off or slow-down, thereby providing effective road speed supervision for the diesel truck.

REFERENCES:
patent: 3207255 (1965-09-01), Hahlganss et al.
patent: 3371634 (1968-03-01), Lalande
patent: 3385278 (1968-05-01), Johnson et al.
patent: 3533390 (1970-10-01), Goodwin
patent: 3590798 (1971-07-01), Goodwin
patent: 3877455 (1975-04-01), Goodwin

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