Title:
ブリーザ装置
Document Type and Number:
Japanese Patent JP7239897
Kind Code:
B2
Abstract:
A breather device (10) includes a case (11) housing a device in an internal space (12) and a valve (20) tightly sealing the internal space (12). The valve (20) includes a housing (21), a communication path (23), a ventilation passage (28), a seal portion (26), a valve element (60), and a spring. The valve element (60) includes first and second valve members (40, 50). The second valve member (50) abuts against the first valve member (40) to block a valve hole (43) thereof. The spring includes first and second springs (61, 62). The first spring (61) pushes the first valve member (40) against the seal portion in the housing (21) of the valve (20). The second spring (62) pushes the second valve member (50) against the first valve member (40). The valve (20) is brought into a closed valve state with the valve element (60) pushed against the seal portion with the second valve member (50) blocking the valve hole (43). The elastic force of the first spring (61) in the closed valve state is larger than the second spring (62).
Inventors:
Cao Jiadong
Daisuke Yamaoka
Daisuke Yamaoka
Application Number:
JP2020031488A
Publication Date:
March 15, 2023
Filing Date:
February 27, 2020
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16H57/027; F01M13/00; F16K24/00
Domestic Patent References:
| JP2009106024A | ||||
| JP2017533395A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda