Title:
印刷装置
Document Type and Number:
Japanese Patent JP7155874
Kind Code:
B2
Abstract:
A duckbill valve is disclosed that stably operates for a long time even when high pressure is applied to fluid. The duckbill valve includes a first flow path formation part including a first flow path and a second flow path formation part including a second flow path having a width increasing gradually toward the first flow path formation part. The second flow path formation part has a slit formed at a tip end part, and the second flow path communicates with a downstream flow path FP2 when the slit is opened. The communication between the second flow path and the downstream flow path is blocked when the slit is closed. The first wall part and the second wall part do not make contact with each other when the pressure difference of the second flow path with respect to the pressure of the downstream flow path FP2 is −75 kPa.
More Like This:
| JPS5569369 | FLUID OUTLET VALVE FOR PISTONNCOMPRESSOR |
Inventors:
Hiroshi Mawa
Toshio Kumagai
Toshio Kumagai
Application Number:
JP2018202586A
Publication Date:
October 19, 2022
Filing Date:
October 29, 2018
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
F16K15/14; B41J2/175; F04B43/02
Domestic Patent References:
| JP3017674U | ||||
| JP2001248560A | ||||
| JP2012210824A | ||||
| JP3004077A |
Attorney, Agent or Firm:
Satoshi Nakai
Hiroki Matsuoka
Masayuki Imamura
Hiroki Matsuoka
Masayuki Imamura