US 12,233,685 B2
Reheating method for operating a refrigeration system for a motor vehicle, refrigeration system, and motor vehicle having a refrigeration system of this type
Dirk Schroeder, Manching (DE); Christian Rebinger, Munich (DE); and Helmut Rottenkolber, Mindelstetten (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Appl. No. 17/768,712
Filed by AUDI AG, Ingolstadt (DE)
PCT Filed Sep. 28, 2020, PCT No. PCT/EP2020/077051
§ 371(c)(1), (2) Date Apr. 13, 2022,
PCT Pub. No. WO2021/115655, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 102019133546.9 (DE), filed on Dec. 9, 2019.
Prior Publication US 2024/0131897 A1, Apr. 25, 2024
Prior Publication US 2024/0227500 A9, Jul. 11, 2024
Int. Cl. B60H 1/00 (2006.01); F25B 5/02 (2006.01); F25B 41/31 (2021.01); F25B 41/40 (2021.01)
CPC B60H 1/00842 (2013.01) [F25B 5/02 (2013.01); F25B 41/31 (2021.01); F25B 41/40 (2021.01); F25B 2313/02791 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A refrigeration system for a motor vehicle, comprising:
a refrigerant compressor, which is selectively connectable to or fixedly connected to a primary line and a secondary line;
an external heat exchanger, which is arranged in the primary line;
an evaporator, which is arranged in the primary line;
a heating register, which is arranged in the secondary line;
at least one movable temperature flap, which is arranged before or after the heating register with respect to a supply air flow direction;
at least one shutoff element, which is arranged downstream of the heating register in the secondary line;
wherein the refrigeration system is configured to be operated in a reheating mode whereby the at least one shutoff element is set in a position in which the refrigerant flows into the evaporator downstream of the heating register while bypassing the external heat exchanger, and
wherein, in such a reheating mode, the refrigerant flows through the following components of the refrigeration system in succession, starting from the refrigerant compressor: the heating register in the secondary line, the evaporator in the primary line, and a heat sink arranged fluidically in parallel or in series to the evaporator and configured to extract heat from the refrigeration system.