Internal-combustion engines – Cooling – Automatic coolant flow control
Patent
1980-01-18
1982-06-01
Feinberg, Craig R.
Internal-combustion engines
Cooling
Automatic coolant flow control
123 4142, 123 4110, F01P 700
Patent
active
043322212
ABSTRACT:
A cooling system and a method of operation of a cooling system for an internal combustion engine in which the coolant is a heat-retaining storage medium capable of being super-cooled. A suitable medium is found to be, especially, sodium acetate trihydrate mixed with water. The coolant according to the invention may be caused to solidify and crystallize just prior to an intended engine starting, thereby releasing the latent heat of fusion and preheating the engine. The preheating of the engine results in reduced run-up times, a reduced degree of fuel enrichment during cold starting, a decrease in toxic exhaust components during cold starting and decreased water and tear. The invention provides for valves in the cooling system which isolate the engine from the remainder of the cooling system until the coolant has been reliquified completely.
REFERENCES:
patent: 1634394 (1927-07-01), Bernard
patent: 2507643 (1950-05-01), Oaks
patent: 2519692 (1950-08-01), Oaks
patent: 2537694 (1951-01-01), Oaks
patent: 3162183 (1964-12-01), Gratzmuller
patent: 3765384 (1973-10-01), Barnard
Imhof Ernst
Schmid Gunther
Feinberg Craig R.
Robert & Bosch GmbH
Wolfe W. R.
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