Computer controlled water bypass system for a marine engine

Details Computer controlled water bypass system for a marine engine Computer controlled water bypass system for a marine engine

2011-01-25

2011-01-25

Vasudeva, Ajay (Department: 3617)

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

C440S08800J, C440S08800J, C440S08900C, C123S041020, C123S041080, C123S041290

Reexamination Certificate

active

07874884

ABSTRACT:
A method for controlling a marine engine uses a flow regulating valve in combination with a solenoid operated two position control valve to regulate the flow of cooling water through exhaust system components. Temperatures are measured at the components, such as within the cooling jacket of exhaust manifolds, and a microprocessor compares the measured temperatures to desired ranges. When the temperatures exceed upper limits, additional flow is directed from a pump to the exhaust system components. When the temperatures are below desired flow thresholds, the flow of the water in the pump is restricted in order to allow the exhaust system components to rise in temperature.

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