Plural compressors

US7201567B2 · kind B2 · utility

Assignee

• Emerson Climate Technologies, Inc. · US

Inventors

• Guido Wiertz · Suzhou, CN
• Robert Iserentante · Spa, BE
• Didier Doutrepont · Theux, BE
• Johann Dobrescu · Stolberg, DE
• Francis Pirenne · Welkenraedt, BE
• Gary J. Anderson · Sidney, US
• Philippe Ernst · Henri-Chapelle, BE
• Clyde Verhoff · Fort Loramie, US
• Pierre POYSAT · Jalhay, BE

Key dates

• Filing date: Jun 20, 2003
• Grant date: Apr 10, 2007
• Expiry date: Jul 5, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B2600/0253
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A compressor system includes a pair of compressors located in a common shell. A common drive shaft drives both compressors and the drive shaft is powered by a single motor. One or both of the compressors can be equipped with a pulse width modulated capacity control system and a vapor injection system. When one compressor is equipped with these systems, the capacity can be varied between 50% and 110%. When both compressors are equipped with these systems, the capacity can be varied between 0% and 120%.