Title:
HEAT EXCHANGE DEVICE, AND HEAT PUMP HOT-WATER SUPPLY DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2005257189
Kind Code:
A
Abstract:
To provide an inexpensive and compact heat exchange device with favorable heat exchange performance and a low pressure loss, and a heat pump hot-water supply device using it.
The heat exchange device is provided with first heat exchanger tubes 20a and 20b carrying a first fluid, and second heat exchanger tubes 22a and 22b arranged in the first heat exchanger tubes 20a and 20b, and composed by spirally twisting a plurality of heat exchanger tubes carrying a second fluid. The first heat exchanger tube is provided with a planar volute inner winding part carrying the first fluid from an outer circumference to a center, and a planar volute outer winding part carrying the first fluid from a center to an outer circumference.
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Inventors:
MO TATSUMURA
OHAMA MASAHIRO
WATANABE TAKEJI
OHAMA MASAHIRO
WATANABE TAKEJI
Application Number:
JP2004070408A
Publication Date:
September 22, 2005
Filing Date:
March 12, 2004
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F24H1/00; F24H9/00; F25B39/04; F28D7/02; F28D7/04; F28D7/10; F28D7/14; (IPC1-7): F28D7/14; F24H1/00; F24H9/00; F25B39/04; F28D7/02; F28D7/04; F28D7/10
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano