Title:
電動弁
Document Type and Number:
Japanese Patent JP7449844
Kind Code:
B2
Abstract:
To achieve excellent workability of an auxiliary valve element, in a motor-operated valve in which flow rate control in a small flow rate control region of a fluid is performed by a port throttle portion between an auxiliary valve port formed on a main valve element and the auxiliary valve element in a state of fully closing a main valve port by the main valve element.SOLUTION: A guide boss portion 41 inserted into an auxiliary valve chest 3R is disposed in an auxiliary valve element 4. A high lubrication guide member 10 with which the guide boss portion 41 is slidably kept into contact, is disposed between an inner periphery of the auxiliary valve chest 3R and an outer periphery of the guide boss 41. A fluid flowing into a main valve chest 1R is allowed to flow to the inside of the high lubrication guide member 10 from a communication passage 3b. The guide boss portion 41 is made to easily slide (vertical motion) in the high lubrication guide member 10. Thus generation of noise and vibration of a motor-operated valve 100 is suppressed.SELECTED DRAWING: Figure 1
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Inventors:
Ryoji Koike
Daiki Nakagawa
Daiki Nakagawa
Application Number:
JP2020196977A
Publication Date:
March 14, 2024
Filing Date:
November 27, 2020
Export Citation:
Assignee:
Saginomiya Co., Ltd.
International Classes:
F16K31/04; F16K47/02
Domestic Patent References:
| JP2020173004A | ||||
| JP2003148642A | ||||
| JP202056472A | ||||
| JP4262175A | ||||
| JP2013249889A |
Foreign References:
| US5113903 |
Attorney, Agent or Firm:
Fumio Takino
Toshiaki Tsuda
Yasuhiro Fukuda
Toshiaki Tsuda
Yasuhiro Fukuda