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Patent Searching and Data


Title:
HEATING SYSTEM
Document Type and Number:
Japanese Patent JP2021024364
Kind Code:
A
Abstract:
To provide a heating system capable of operating in cold weather with no equipment or devices newly added.SOLUTION: When a temperature T1 or T2 of a cooling water 21 flowing through a high temperature side circuit 20 or a cooling water 31 flowing through a low temperature side circuit 30 is equal to or lower than a predetermined reference temperature Tα, the cooling water 21, or 31 is circulated between a heater core 23 and a cooling target part 33 in a first bypass circuit 40. When the temperature of the cooling water 21 or 31 circulating in the first bypass circuit 40 exceeds the reference temperature Tα, the cooling water 21 or 31 is circulated among the heater core 23, the cooling target part 33 and a low temperature side heat exchanger 13 in a second bypass circuit 50. When the low temperature side heat exchanger 13 is warmed up by the cooling water 21 or 31 flowing through the second bypass circuit 50, a compressor 11 of a refrigerant circuit 10 is operated, while the cooling water 21 is circulated in the high temperature side circuit 20, and the cooling water 31 is circulated in the low temperature side circuit 30.SELECTED DRAWING: Figure 2

Inventors:
ERITATE KAZUNOBU
AIKAWA TSUGUFUMI
Application Number:
JP2019142063A
Publication Date:
February 22, 2021
Filing Date:
August 01, 2019
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
B60H1/22
Attorney, Agent or Firm:
Watanabe strong
Kikuhiko Nakamoto