Patent ID: 11912105
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 15:
16. A heat pump, comprising:
a refrigerant loop comprising:
a first heat exchanger;
a first region of a second heat exchanger;
a third heat exchanger;
a fourth heat exchanger;
a compressor having a low-pressure inlet, a mid-pressure inlet, and an outlet;
a vapor generator positioned downstream of the outlet of the compressor and upstream of both the low-pressure inlet and the mid-pressure inlet;
a first check valve positioned immediately downstream of the third heat exchanger;
a second check valve positioned immediately downstream of the fourth heat exchanger;
a first three-way valve positioned downstream of the outlet of the compressor and upstream of an inlet of the first heat exchanger, wherein the first three-way valve is positioned upstream of the first region of the second heat exchanger;
a second three-way valve positioned immediately downstream of the first heat exchanger;
a third three-way valve positioned immediately upstream of the third heat exchanger;
a first shutoff valve plumbed in series with the first heat exchanger, wherein the first shutoff valve is positioned downstream of the first heat exchanger;
a second shutoff valve plumbed in series with a second region of the vapor generator, wherein the second shutoff valve is positioned downstream of the second region of the vapor generator; and
a third shutoff valve positioned downstream of the second three-way valve, wherein the second three-way valve is positioned immediately downstream of the second shutoff valve.