Title:
パワーエレメント及びそれを用いた膨張弁
Document Type and Number:
Japanese Patent JP7373857
Kind Code:
B2
Abstract:
Provided are an expansion valve and power element used therein that are capable of maintaining sealability while reducing the size of the expansion valve and suppressing deterioration of controllability. The expansion valve comprises a valve main body; a power element mounted on the valve main body; and a seal provided between the valve main body and the power element, wherein: the power element includes: an upper lid member; a receiving member; and a diaphragm interposed between the upper lid member and the receiving member, the receiving member is formed by press working, and includes a cylindrical portion and an annular flange portion that is adjacent to the cylindrical portion and extends in an outer circumferential direction of the cylindrical portion, the cylindrical portion of the receiving member is fixed to the valve main body, and the seal is provided in a seal space formed between the cylindrical portion, the annular flange portion, and the valve main body, and a cutting process is performed on a region of the cylindrical portion adjacent to the annular flange portion, and the region forms a part of the seal space.
Inventors:
Junya Hayakawa
Kinya Okutsu
Kohei Kubota
Kinya Okutsu
Kohei Kubota
Application Number:
JP2021055966A
Publication Date:
November 06, 2023
Filing Date:
March 29, 2021
Export Citation:
Assignee:
Fuji Koki Co., Ltd.
International Classes:
F16K31/68; F25B41/335
Domestic Patent References:
| JP2021032348A | ||||
| JP2005249273A | ||||
| JP2006105474A | ||||
| JP9089154A |
Foreign References:
| US20040112974 |
Attorney, Agent or Firm:
Patent Attorney Corporation Daiichi International Patent Office
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