Chambered shaft for improved bearing lubrication

Patent metadata

Field	Value
Publication number	US-9103376-B2
Application number	US-201414182179-A
Country	US
Kind code	B2
Filing date	Feb 17, 2014
Priority date	Oct 23, 2013
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A shaft for a bearing lubrication assembly includes an outer surface and a reservoir disposed within the shaft. A first seal groove is formed on the outer surface and extends a full circumference of the outer surface. A second seal groove is also formed on the outer surface and extends the full circumference of the outer surface. A radial port extends from the reservoir to the outer surface, the radial port intersecting the outer surface between the first seal groove and the second seal groove. A plurality of chambers are formed in the shaft and disposed axially between the first seal groove and the second seal groove. The plurality of chambers are open to the outer surface with each chamber having a closed bottom disposed radially inward from the outer surface. Each chamber is also circumferentially spaced from one another.

First claim

The invention claimed is:

1. A shaft for a bearing lubrication assembly, the shaft comprising:
an outer surface;
a reservoir disposed within the shaft;
a first seal groove formed on the outer surface and extending a full circumference of the outer surface;
a second seal groove formed on the outer surface and extending a full circumference of the outer surface;
a radial port extending from the reservoir to the outer surface, the radial port intersecting the outer surface be…

Assignees

• Hamilton Sundstrand Corp

Inventors

• Krause Joseph Paul
• Abels Jan Henry

Classifications

• F16C33/7813

  Mechanical Engineering · mapped topic

• F16C33/6659

  Mechanical Engineering · mapped topic

• F16C37/007

  Mechanical Engineering · mapped topic

• F16C33/6677 Primary

  Mechanical Engineering · mapped topic

• F16C3/02

  Mechanical Engineering · mapped topic