Title:
STORAGE WATER HEATER
Document Type and Number:
WIPO Patent Application WO/2023/144889
Kind Code:
A1
Abstract:
A storage water heater according to the present disclosure comprises a hot water storage tank, and a condenser disposed in the hot water storage tank and having a refrigerant pipe in the shape of a helix around a vertical line. The condenser has an upper portion and a lower portion that is lower than the upper portion. The vertical length of the vertical cross-sectional shape of the refrigerant pipe at the lower portion of the condenser is shorter than the vertical length of the vertical cross-sectional shape of the refrigerant pipe at the upper portion of the condenser. The helical pitch formed by the refrigerant pipe at the lower portion of the condenser may be smaller than the helical pitch formed by the refrigerant pipe at the upper portion of the condenser.
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Inventors:
MURATA KENTA (JP)
HIROSAKI HIROKI (JP)
HIROSAKI HIROKI (JP)
Application Number:
PCT/JP2022/002680
Publication Date:
August 03, 2023
Filing Date:
January 25, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F24H4/02; F24H1/18; F28D7/02
Foreign References:
| JP2007071426A | 2007-03-22 | |||
| JP2008267790A | 2008-11-06 | |||
| JP2006521528A | 2006-09-21 | |||
| FR3077622A1 | 2019-08-09 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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