Heat exchanger with high pressure phase refrigerant channel, low pressure phase refrigerant channel and coolant channel

US9945614B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Uwe Foerster · Erdmannhausen, DE
• Gottfried Duerr · Stuttgart, DE
• Herbert Hofmann · Wiesbaden, DE
• Christoph Walter · Stuttgart, DE

Key dates

• Filing date: May 29, 2015
• Grant date: Apr 17, 2018
• Expiry date: Jan 21, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28D2021/0084
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A heat exchanger is provided that includes a first flow channel for a refrigerant, a second flow channel for a refrigerant, and a third flow channel for a coolant, wherein the first flow channel has a first region for initial cooling of the refrigerant and a second region for further cooling of the refrigerant. The refrigerant can flow in a high-pressure phase in the first flow channel and the refrigerant can flow in a low-pressure phase in the second flow channel. A first heat exchange occurs between the refrigerant in the first region of the first flow channel and the coolant in the third flow channel and a second heat exchange occurs between the refrigerant in the second region of the first flow channel and the refrigerant in the second flow channel.