Title:
NEGATIVE PRESSURE TYPE ACTUATOR AND ENGINE GAS-EXHAUSTION DEVICE PROVIDED WITH NEGATIVE PRESSURE TYPE ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2017/119013
Kind Code:
A1
Abstract:
This negative pressure-type actuator (4) is provided with: a diaphragm (43); an output shaft (44) extending toward the opposite side to a negative pressure chamber (410); a stopper (46) provided so as to be penetrated by the output shaft; and a stopper engagement part (47) fixed on the output shaft. The stopper has a first abutment surface (462), to which the stopper engagement part is abutted, and the stopper engagement part has a second abutment surface (471). The first abutment surface (462) is formed in an arc shape on a cross section including the axial center (X2) of the output shaft, and the second abutment surface (471) is formed in an arc shape, the curvature of which is the same as that of the first abutment surface, on a cross section including the axial center of the output shaft.
Inventors:
OHTSUKI KEN (JP)
ISHIDA KIMIO (JP)
TSUJITA SHUHEI (JP)
SUEKUNI EINOSUKE (JP)
MUROTANI MITSUYUKI (JP)
UMEMURA JUNJI (JP)
ISHIDA KIMIO (JP)
TSUJITA SHUHEI (JP)
SUEKUNI EINOSUKE (JP)
MUROTANI MITSUYUKI (JP)
UMEMURA JUNJI (JP)
Application Number:
PCT/JP2016/000084
Publication Date:
July 13, 2017
Filing Date:
January 08, 2016
Export Citation:
Assignee:
MAZDA MOTOR (JP)
International Classes:
F15B15/10; F02D9/06; F16K31/126
Foreign References:
| JPH10317996A | 1998-12-02 | |||
| JP2001207871A | 2001-08-03 | |||
| JP2003166429A | 2003-06-13 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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