Title:
HEAT EXCHANGER
Document Type and Number:
Japanese Patent JP2021038861
Kind Code:
A
Abstract:
To appropriately switch execution or stop of heat exchange between a high temperature side heat exchange part and a lower temperature side heat exchange part with a simple structure.SOLUTION: A heat exchanger includes: a first heat exchange wall part 11; a second heat exchange wall part 12; a side wall part 13 defining a sealed space with the first heat exchange wall part 11 and the second heat exchange wall part 12; a piston 20 which divides the sealed space into a first space chamber 15 at the first heat exchange wall part 11 side and a second space chamber 16 at the second heat exchange wall part 12 side; a rod 25 in which one end side is fixed to the piston 20 and the other end side is inserted into a through hole 11A of the first heat exchange wall part 11 to be supported thereby; a heat insulation fluid which flows into the second space chamber 16 or is discharged from the second space chamber 16; a permanent magnet 30 provided at the piston 20; and an electromagnet 40 which is provided in one of the first heat exchange wall part 11 and the second heat exchange wall part 12 and applies an attraction force or a repulsive force generated by a magnetic force to the permanent magnet 30 to cause the piston 20 to come into contact with the second heat exchange wall part 12 or separate from the second heat exchange wall part 12.SELECTED DRAWING: Figure 2
Inventors:
SAKATA HIROAKI
Application Number:
JP2019159072A
Publication Date:
March 11, 2021
Filing Date:
August 30, 2019
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
F28D21/00
Attorney, Agent or Firm:
at Patent Business Corporation