HEAT EXCHANGER

WIPO Patent Application WO/2019/003577

A1

Provided is a heat exchanger capable of suppressing odors sensed by people in an air-conditioned room or the like. The present invention is a heat exchanger having a polyamine on at least part of the surface thereof. As a result of the polyamine being present on the surface of the heat exchanger, an odor component is temporarily held by polyamine activity, and discharge of an odor component all at once into a room or the like due to the evaporation of free water (condensed water or the like) is eliminated. Consequently, the discharge of the odor component is gradual, and changes in the concentration of the odor component in the room are reduced; hence, instances when a person would sense a strong smell are suppressed. A representative example of the polyamine is PEI, and a representative example of the heat exchanger is an evaporator to be used in a vehicle air conditioner. The present invention differs from conventional methods of removing or breaking down odor components, and is innovative in that odors are prevented and suppressed by making the discharge of the odor component gradual.

ITO HIROSHI (JP)
KOSAKA SATORU (JP)
SAKAKIBARA KIYOMI (JP)
MURASE ATSUSHI (JP)
NAKAMURA KENJI (JP)
HIROSE TAKAYUKI (JP)
UCHIYAMA KAZUHISA (JP)
NISHINO TOMOHIDE (JP)
HASHIMOTO SAYURI (JP)
FUTAMATA HIROFUMI (JP)

PCT/JP2018/015457

January 03, 2019

April 13, 2018

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TOYOTA CHUO KENKYUSHO KK (JP)
DENSO CORP (JP)

F28F19/04; F25B39/02; F28F13/18

JP2011161876A

2011-08-25

MORIOKA Masayuki et al. (JP)

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