The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 1991
Filed:
Jan. 18, 1990
Robert A Lindstrom, Tecumseh, MI (US);
Tecumseh Products Company, Tecumseh, MI (US);
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.