Isolator decoupler

US8888622B2 · kind B2 · utility

Assignee

• Gates Corporation · US

Inventors

• Xiaohua Chen · Nanhu, CN
• John Harvey · Novi, US
• Rudy Pupulin · Tecumseh, CA
• Keming Liu · Sterling Heights, US
• Alexander Serkh · Troy, US
• Imtiaz Ali · Lathrup Village, US
• Dean Schneider · Big Rapids, US
• Peter Ward · Hillsboro, US

Key dates

• Filing date: Jun 4, 2012
• Grant date: Nov 18, 2014
• Expiry date: Jun 4, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D41/066
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a clutch carrier journalled to the shaft through a one-way clutch, a torsion spring engaged between the pulley and the clutch carrier, the torsion spring loadable in an unwinding direction, the torsion spring and the pulley having a predetermined clearance between a torsion spring outside diameter surface and a pulley inside diameter surface, and whereby the torsion spring outside diameter surface and a pulley inside diameter surface come into a progressive frictional engagement by torque load dependent radial expansion of the torsion spring.