Patent · US Active

Device for lubricating a big-end bearing

US11220938B2 · kind B2 · utility

0Cited by

7References

17Claims

0Family size

Assignee

MAN Truck &Bus AG · DE

Inventors

Thomas Malischewski · Heilsbronn, DE
Jens Dietrich · Heilsbronn, DE
Steffen Hirschmann · Neustadt an der Aisch, DE
Dominik Renner · Ansbach, DE

Key dates

Filing date	Dec 18, 2018
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Aug 27, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M2011/027
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device lubricates a big-end bearing on a crankshaft of an internal combustion engine. The device includes a piston with a fluid channel and an outlet channel fluidically connected thereto, and a connecting rod. The connecting rod has a small connecting rod eye, a large connecting rod eye and a connecting channel. The small connecting rod eye is fluidically connected to the outlet channel. The connecting channel forms a fluidic connection between the small and large connecting rod eyes so that a cooling lubricant fluid can be supplied from the fluid channel to the large connecting rod eye via the outlet channel, the small connecting rod eye and the connecting channel. In this way, the big-end bearing can be lubricated by cooling oil from the fluid channel of the piston.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.