Title:
負圧ブースタ用チェックバルブ
Document Type and Number:
Japanese Patent JP6742781
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a check valve for a negative pressure booster capable of improving durability and sealability.SOLUTION: A check valve 18 includes a valve seat 33, a valving element 37 having a circular disk 39 and a tubular type seal lip 41 rising from the outer periphery of the circular disk 39 toward the valve seat 33, a valve support 38 for supporting the circular disk 39 from the rear by a mountain-shaped surface 42 receding from the rear face of the circular disk 39 gradually as approaching the outer periphery of the circular disk 39, and a stopper mechanism ST for regulating movement of the valve support 38 toward the valve seat 33 at a seating time of the seal lip 41.SELECTED DRAWING: Figure 3
Inventors:
Shuichi Yatabe
Application Number:
JP2016069584A
Publication Date:
August 19, 2020
Filing Date:
March 30, 2016
Export Citation:
Assignee:
Nissin Brake Systems Co., Ltd.
International Classes:
B60T13/52; B60T15/36; B60T17/00; F16K1/36; F16K15/06
Domestic Patent References:
| JP9202229A | ||||
| JP58104460U | ||||
| JP7041147U |
Attorney, Agent or Firm:
Ochiai Patent Office