Refrigeration system having a heat pump function for a motor vehicle, having a single sensor device on the low-pressure side

US12397617B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventors

• Hans Hammer · Mannheim, DE
• Christian Rebinger · Munich, DE
• Dirk Schroeder · Eckental, DE

Key dates

• Filing date: Nov 10, 2021
• Grant date: Aug 26, 2025
• Expiry date: Apr 8, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B2700/21152
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A refrigeration system having a heat pump function for a motor vehicle. The refrigeration system includes: a refrigerant compressor which is connectable or connected to a primary line; a directly or indirectly acting external heat exchanger, which is arranged in the primary line; a first evaporator, which is arranged in the primary line; a first directly or indirectly acting heat exchanger, in particular a chiller, which is arranged fluidically in parallel to the evaporator; and a refrigerant collector arranged on the low-pressure side. A single sensor device is arranged downstream of the evaporator and the further heat exchanger, in particular the chiller, which is configured to detect the pressure and the temperature of the refrigerant on the low-pressure side of the refrigeration system.