.~ Heat exchange by diverted incoming or outgoing working fluid
DEFINITION
Classification: 418/86
(under subclass 83) Apparatus in which the working fluid either prior to entering or upon leaving the working chamber is caused to follow a tortuous path thereabout for either giving off or absorbing heat in the operation of the device.
(1) Note. Incidental heat exchange by working fluid entering or leaving the working chamber of the device by the most direct or expeditious path is not considered proper for classification here. Also, diversion of a portion of the working fluid merely for lubrication purposes but which may incidentally cool is not considered proper for classification here and classification of such devices will be based on other features.
