Connecting rod with lubrication passage

US9068530B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Christopher Hall · Dorpsstraat, US
• Dan H. Dinu · Windsor, CA

Key dates

• Filing date: Mar 15, 2013
• Grant date: Jun 30, 2015
• Expiry date: Mar 15, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01M2001/066
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Exemplary connecting rods and piston assemblies are disclosed. An exemplary connecting rod includes a shaft extending between a piston pin end and a crankshaft pin end, where the piston pin end defines a pin bore opening. The shaft defines a lubrication passage. The connecting rod further includes a piston pin bore surface extending about an inner circumference of the pin bore opening, and the lubrication passage extends through the shaft from the crankshaft pin end to the pin bore opening. The connecting rod may further include a valve received within the opening, e.g., a one-way valve, that is configured to permit a fluid to flow through the valve toward the piston pin end while restricting flow of the fluid through the valve toward the crankshaft pin end.