Title:
流体制御弁
Document Type and Number:
Japanese Patent JP6833671
Kind Code:
B2
Abstract:
To avoid a situation that a back spring is assembled into a spring guide in a state that a terminal part of the back spring is hung to a lock part of the spring guide.SOLUTION: An electronic throttle device comprises a spring guide 51 arranged at a valve shaft, a valve gear for rotating the valve shaft, and a back spring 53 arranged between a valve housing and the spring guide 51. The back spring 53 is composed of a coil spring, and has a terminal part 53a which is bent to the outside of a radial direction. The spring guide 51 includes a spring seat 51c for supporting the back spring 53, and a lock part 51d for locking the terminal part 53a. The terminal part 53a is inclined to a direction orthogonal to an axial line direction of the back spring 53 at an angle larger than an inclination which is formed of a spiral of the coil spring. The terminal part 53a is inclined to a direction separating from the spring 53 in an axial line direction of the back spring 53.SELECTED DRAWING: Figure 14
Inventors:
Yuuji Kawashita
Application Number:
JP2017252749A
Publication Date:
February 24, 2021
Filing Date:
December 28, 2017
Export Citation:
Assignee:
Aisan Industry Co., Ltd.
International Classes:
F16K31/53; F02D9/02; F16K1/22
Domestic Patent References:
| JP2011032895A | ||||
| JP2008019825A | ||||
| JP57022637U | ||||
| JP2015028347A | ||||
| JP2005140034A | ||||
| JP2014074361A | ||||
| JP2017101626A |
Foreign References:
| US20080236541 |
Attorney, Agent or Firm:
Cosmos International Patent and Trademark Office