Turbocharger thrust bearing

US10113587B1 · kind B1 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Rajasekhar Nicodemus · Bengaluru, IN
• Fanghui Shi · Bloomfield Hills, US
• Sudipto Ray · Kanchinakote, IN
• Dingfeng Deng · Auburn Hills, US
• Louis P. Begin · Rochester, US
• Ran Wu · Auburn Hills, US

Key dates

• Filing date: Aug 22, 2017
• Grant date: Oct 30, 2018
• Expiry date: Aug 22, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2360/24
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An improved thrust bearing for a turbocharger includes a first bearing surface, a second bearing surface, an internal passageway, a primary pad, and a plurality of secondary pads. The internal passageway fluidly connects the first and second bearing surfaces. The primary pad may be defined on the first bearing surface. The primary pad further defines a first aperture in fluid communication with the internal passageway and an oil feed defined in a turbocharger housing. The plurality of secondary pads may also be defined on the first bearing surface. Each secondary pad in the plurality of secondary pads may include a secondary surface area which is smaller than the primary surface area of the primary pad.