Heat exchange – With timer – programmer – time delay – or condition responsive... – Temperature responsive or control
Patent
1999-01-19
2000-08-29
Ford, John K.
Heat exchange
With timer, programmer, time delay, or condition responsive...
Temperature responsive or control
165 41, 165 51, 165108, 239129, 239130, 236 345, 123557, 237 123B, G05D 2300, F24H 704
Patent
active
061093467
ABSTRACT:
A waste heat auxiliary tank system is provided for transferring heat from the coolant of an internal combustion engine to process water contained in an auxiliary water storage tank. The waste heat auxiliary tank system operates by drawing coolant from the engine of a truck, diverting the coolant through a common heat exchanger of the type employing coils, tubes or the like, and pumping process water through the heat exchanger, where heat is transferred from the coolant to the process water, to an auxiliary water storage tank for storing the hot process water on the truck. Importantly, the waste heat auxiliary tank system includes at least one automatically activated multiport thermostatically controlled diverter valve. The diverter valve includes an inlet port for receiving coolant from the engine, a first outlet port for diverting coolant directly back to the engine, and a second outlet port for diverting coolant to the coolant inlet of said heat exchanger. In accordance with the present invention, the diverter valve is responsive to coolant temperature changes relative to a predetermined engine operating temperature such that when the coolant temperature is below the predetermined operating temperature, coolant is directed out the first outlet port: back to the engine; and such that when the coolant temperature is above the predetermined diverting temperature, the same is directed out the second outlet port: to the heat exchanger inlet.
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Ford John K.
Forster William G.
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