Scroll machine with single plate floating seal

US7338265B2 · kind B2 · utility

Assignee

• Emerson Climate Technologies, Inc. · US

Inventors

• Walter T. Grassbaugh · Sidney, US
• John D. Prenger · Jackson Center, US
• Christopher Stover · Versailles, US
• Xiaogeng Su · Baelen, BE
• Hanqing Zhu · Suzhou, CN

Key dates

• Filing date: Mar 4, 2005
• Grant date: Mar 4, 2008
• Expiry date: May 25, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C27/005
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A scroll machine utilizes a floating seal to isolate pressurized fluid to provide axial biasing. The floating seal is designed as a single piece plate with inner and outer annular seals. The inner and outer annular seals can be U-shaped, V-shaped or L-shaped and each configuration is oriented to provide pressure actuation of the seal. Additional embodiments add a discharge valve, a high temperature protection system or a high pressure protection system to the floating seal.