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Patent Searching and Data


Title:
NEGATIVE PRESSURE TYPE BOOSTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/188128
Kind Code:
A1
Abstract:
In the present invention, at least one of one shell 21, another shell 22, and a movable partition wall 3 is provided with: a radial center section 313 formed on an annular one end surface 311, which is an end surface on one side in the axial direction; and a plurality of protrusion sections 314 protruding from the one end surface 311 in the axial direction. When viewed from the axial direction, the plurality of protrusion sections 314 extend in a radial manner from the radial center section 313, and at least one of the plurality of protrusion sections 314 has, in at least a radially outward end section of the one end surface 311, a curved region 314a or a straight region 314b which extends in a direction that intersects the radial direction and the circumferential direction of the one end surface 311.

Inventors:
SAKAKIBARA YUICHI (JP)
Application Number:
PCT/JP2017/015949
Publication Date:
November 02, 2017
Filing Date:
April 20, 2017
Export Citation:
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Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/567; B60T13/569
Foreign References:
JP2007076437A2007-03-29
JP2008045599A2008-02-28
JPS56163953A1981-12-16
JPS58101862A1983-06-17
JPS58122654U1983-08-20
JPS55152655A1980-11-28
JPS60213559A1985-10-25
JPS5647349A1981-04-30
JP2008030648A2008-02-14
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