Title:
弁体駆動装置
Document Type and Number:
Japanese Patent JP7382749
Kind Code:
B2
Abstract:
To reduce damage caused when a passage pipe is curved in a valve element drive device having a structure including a valve body connected with the passage pipe.SOLUTION: A valve element drive device includes: a valve element 5 which switches a passage; a valve body including a rotor for driving the valve element 5 and connected with a passage pipe 3t; a stator for driving the rotor; and a cover 15 which houses the valve body and the stator with the passage pipe 3t extending to the outside. The cover 15 includes a restriction part 63i which is disposed forming a gap g1 with the passage pipe 3t and restricts movement of the passage pipe 3t.SELECTED DRAWING: Figure 6
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Inventors:
Satoru Yokoe
Takehiko Yazawa
Takehiko Yazawa
Application Number:
JP2019132865A
Publication Date:
November 17, 2023
Filing Date:
July 18, 2019
Export Citation:
Assignee:
Nidek Instruments Co., Ltd.
International Classes:
F16K31/04; F16K27/00
Domestic Patent References:
| JP2015113965A | ||||
| JP2018071560A | ||||
| JP2000097358A | ||||
| JP2016527451A |
Attorney, Agent or Firm:
Hiroki Ishii