Air conditioning system, and accumulator therefor and manufacturing method of the accumulator

US5605058A · kind A · utility

Assignee

• Mitsubishi Electric Corporation · JP

Inventors

• Mitsunori Kurachi · Wakayama, JP
• Masahiko Sugino · Wakayama, JP
• Tomohiko Kasai · Cypress, US
• Hirofumi Kouge · Wakayama, JP
• Tatsuo Ono · Kawasaki, JP
• Masaharu Moriyasu · Kasai, JP
• Youichi Hisamori · Amagasaki, JP
• Kenji Kawaguchi · Tokyo, JP
• Michio Fujiwara · Hitachinaka, JP

Key dates

• Filing date: Mar 15, 1995
• Grant date: Feb 25, 1997
• Expiry date: Mar 15, 2015

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B43/02
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

An air conditioning system of the present invention has a refrigerant circuit including a compressor, an oil separator, a condenser, a expansion device, an evaporator, a first accumulator, and a second accumulator which are connected in order by piping, said evaporator, said first accumulator, said second accumulator, and said compressor being connected in series; a first oil return bypass for connecting said oil separator and a connection pipe between said first and second accumulators; and a second oil return bypass for connecting said first accumulator and a connection pipe between said second accumulator and said compressor.