Patent · US Active

Turbocharger wastegate actuator assembly

US10458320B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Zhe Li · Shanghai, CN
Julie A. Swartz · Wixom, US
Grant W. Brady · Howell, US

Key dates

Filing date	Nov 9, 2017
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Apr 10, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A wastegate actuator assembly includes a regulating rod, an arm, and a shaft. The regulating rod includes a proximate end region and a distal end region wherein the proximate end region of the regulating rod may be connected to an actuator. The arm includes a first end region and a second end region. The first end region is pivotally coupled to the distal end region of the regulating rod via a crank pin, a first cup spring, and a second cup spring wherein the first and second cup springs retain a solid lubricant substantially around the crank pin. The regulating rod may move in a linear fashion causing the arm and the shaft to rotate so as to move a wastegate cover connected to the shaft from a closed wastegate duct position (toward the wastegate duct) to an open wastegate duct position (away from the wastegate duct).

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