Internal-combustion engines – Cooling
Reexamination Certificate
2006-11-30
2008-07-15
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Cooling
C123S041060, C440S08800J, C165S041000
Reexamination Certificate
active
07398745
ABSTRACT:
A cooling system for a marine propulsion device provides a bypass loop around a cooling pump that allows the flow of cooling water through certain components to be reduced or increased as a function of the temperature of those components while causing a full flow of cooling water to flow through other selected heat emitting devices. Using this configuration of components and bypass conduits, the operating condition of the cooling water pump can be continually monitored, including the condition of its flexible vanes. By observing the effective cooling capacity of the system under conditions with the bypass valve open and closed, the effectiveness of the cooling water pump can be assessed and a suggestion of maintenance can be provided.
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Hall Ronald L.
Townsend Tom N.
White Brian R.
Ali Hyder
Brunswick Corporation
Cronin Stephen K.
Lanyi Willaim D.
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