US PATENT SUBCLASS 123 / 41.21
.~.~ Coolant circulation with condensing

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

41.01  DF  COOLING {27}
41.2  DF  .~ With vapor generation and/or condensing {1}
41.21.~.~ Coolant circulation with condensing {6}
41.22  DF  .~.~.~> Intake or carburetor connection
41.23  DF  .~.~.~> Entrained in secondary circuit
41.24  DF  .~.~.~> From top of jacket to bottom of radiator
41.25  DF  .~.~.~> Water bypasses condenser
41.26  DF  .~.~.~> Vapor only circulated
41.27  DF  .~.~.~> Overflow vent to condenser

DEFINITION

Classification: 123/41.21

(under subclass 41.2) Cooling systems in which there is condensation of vapor in parts of the system external to the block or cylinder jacket and ultimate or immediate return of the condensate to the system.

(1) Note. Condensation of vapor may be induced by passing the vapor through a heat exchanger, either with or without accompanying liquid, or by introducing it into a body of liquid either in a tank or in the circulating system.

(2) Note. Circulation involves return of at least a portion of the condensate to the block or cylinder jacket, either directly or after a period of storage. The path is usually circuitous, but may be a surge in and out through the same line.

(3) Note. Condensation of vapor in a heat exchanger opening widely and directly into the block water cavity or cylinder jacket is considered circulation, but a mere tank at the top of the water space or jacket is not so considered.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.51, 41.53, 41.54, and 41.55, for reserve supply tanks and for radiators combined with cooling systems.