Screw compressor with reduced leak path

US6595763B2 · kind B2 · utility

Assignee

• CARRIER CORPORATION · US

Inventors

• Timothy C. Wagner · Town of East Hartford, US
• Alexander Lifson · Manlius, US
• James W. Bush · Sidney, US
• Donald Yannascoli · Fayetteville, US
• Mark A. Daniels · Manlius, US
• Rene Lin · Manlius, US
• William Rousseau · Manlius, US

Key dates

• Filing date: Dec 18, 2001
• Grant date: Jul 22, 2003
• Expiry date: Dec 18, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2230/91
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A screw compressor includes at least two components defining at least two operating zones of different pressure and having surfaces defining a flow point between the at least two zones, and a surface treatment positioned on the surfaces so as to reduce clearance between the surfaces, and thereby reduce leakage through the flow point.