Internal-combustion engines – Cooling – Indicators and safety devices
Patent
1995-02-17
1996-01-02
Kamen, Noah P.
Internal-combustion engines
Cooling
Indicators and safety devices
123198D, F01P 514
Patent
active
054798957
ABSTRACT:
A protective device is provided for discontinuing the operation of an internal combustion engine having two banks of cylinders, each cylinder bank having an associated pressurized cooling circuit. Each cooling circuit has a separate pump which circulates liquid coolant by increasing the coolant fluid pressure at the pump outlet relative to the pump inlet. The protective device comprising: a pressure detector; a first valve connected to the outlet of each pump and having a biasing means for communicating the lower of the two pump outlet pressures to the pressure detector; a second valve connected to the inlet of each coolant pump and having a biasing means for communicating the higher of the two pump inlet pressures to the pressure detector; and an engine shutdown mechanism which is actuated by the pressure detector for terminating engine operation should the pressure differential between the outlet pressure and the inlet pressure communicated to the pressure detector become less than a reference (airbox) pressure.
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Kamen Noah P.
Triangle Engineered Products Co.
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