Steam turbine variable clearance packing

US7484927B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Richard Jon Chevrette · Troy, US
• Flor Del Carmen Rivas · Clifton Park, US
• Frederick George Baily · Ballston Spa, US
• William Edward Adis · Scotia, US
• Mark Kelly · Alplaus, US
• Bernard Arthur Couture · Guilderland, US
• Kurt Neal Laurer · Saratoga Springs, US

Key dates

• Filing date: Apr 14, 2006
• Grant date: Feb 3, 2009
• Expiry date: Mar 10, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2220/31
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Disclosed herein is a packing ring assembly including a packing ring segment, a bar, a cover plate, and a spring. The packing ring segment has an axial slot. The bar is disposed within the slot. The cover plate is disposed along an outer periphery of the packing ring segment. And, the spring is compressed between the bar and the cover plate.