US PATENT SUBCLASS 123 / 41.33-- .~.~ With lubricant heat exchange

US PATENT SUBCLASS 123 / 41.33
.~.~ With lubricant heat exchange

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

41.01	DF	COOLING {27}
41.31	DF	.~ With cooling of additional parts or materials {2}
41.33		.~.~ With lubricant heat exchange

DEFINITION

Classification: 123/41.33

(under subclass 41.31) Cooling systems in which the additional substance cooled is a lubricant.

(1) Note. The passage of air through the crankcase is considered cooling lubricant in crankcase.

(2) Note. Devices wherein the air is circulated through the crankcase by the pumping action of the piston are also included.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.86, for crankcase ventilation, per se.

196, for lubricant cooling, per se, where the lubricating system includes significant internal combustion engine structure.