Connecting rod cooling and lubrication

Details Connecting rod cooling and lubrication Connecting rod cooling and lubrication

F - Mech Eng,Light,Heat,Weapons

04

B

230/49

F04B 39/02 (2006.01)

Patent

CA 2024119

ABSTRACT A connecting rod having lubricating passages therein for cooling the piston assembly of a compressor. A central lubricating passage provides fluid communication between the crankshaft end portion and piston end portion of the connecting rod. The central lubricating passage conducts lubricant on the wrist pin, thus directly lubricating the wrist pin. The connecting rod also includes a plurality of branched passages branching from the central lubricating passage and extending through the piston end portion closely adjacent the wrist pin. Each of the branched passages is oriented to spray lubricant on the inner surface of the piston. Thus, the branched passages indirectly cool the wrist pin by drawing heat away from it and directly cool the piston by spraying lubricant thereon.

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