Patent ID: 11884134
Assignee: AUDI AG
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 10:
11. The cooling system according to claim 10, further comprising:
a heat pump pipe section having a heat register,
wherein the heat pump pipe section is separate from the primary coolant circuit and fluidically connectable to the high-pressure section of the internal heat exchanger through the second expansion valve, joining the primary coolant circuit at the junction at which both the second expansion valve and a series connection of the evaporator and the first expansion valve meet,
wherein, by way of a first stop valve, the cooling system is configured to connect the heat pump pipe section to the primary coolant circuit for forming the heat pump circuit and to disconnect the heat pump pipe section from the primary coolant circuit for the AC operation,
wherein a further heat pump pipe section comprising a fourth stop valve and a fourth check valve fluidically joins a pipe section comprising a second stop valve, which connects the heat exchanger to the compressor, to a pipe section connecting a third check valve downstream of the evaporator to the low-pressure section of the internal heat exchanger, and
wherein a discharge pipe section comprising a third stop valve fluidically joins the further heat pump pipe section, at a junction between the fourth stop valve and the fourth check valve, to the heat pump pipe section.