Early warning and protection for heat exchange systems

Details Early warning and protection for heat exchange systems Early warning and protection for heat exchange systems

2007-11-27

2007-11-27

Avila, Stephen (Department: 3617)

Marine propulsion

Means to control the supply of energy responsive to a sensed...

C440S002000

Reexamination Certificate

active

11342304

ABSTRACT:
Method and apparatus are provided for warning a user or operator about a malfunction in a pump and/or engine of a marine vessel or another suitable device or equipment, featuring steps of: comparing a sensed pressure differential at a sensed RPM when the pump/engine is running to a learned database having a pressure differential versus RPM curve; and providing an indication to the operator when there is a change in the relationship that exceeds a predetermined relationship. The apparatus may include an active intelligence unit or module for making the comparison and providing the indication according to the invention.

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patent: 2003/0133808 (2003-07-01), Sabini et al.
patent: 2004/0127109 (2004-07-01), Matsuda

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