(under subclass 34) Devices controlling the flow of air over the radiator according to the temperature of the fluid cooled or the cooling-air or the engine temperature.
SEE OR SEARCH CLASS
123, Internal-Combustion Engines,
41.04+, and 41.11+ for shutter and impeller controls associated with engine cooling.
165, Heat Exchange,
98, for radiator with means controlling the flow of air therethrough not automatically controlled, and subclasses 281+; 287+ for a heat exchanger having automatic temperature or pressure control.
