Title:
エネルギー回収装置
Document Type and Number:
Japanese Patent JP6970781
Kind Code:
B2
Abstract:
To provide an energy recovery device capable of suppressing the occurrence of cavitation when starting a filling process and finishing the process.SOLUTION: An energy recovery device includes: first and second cylinder devices which are connected to a concentrated water pipe; a control section; and a flow passage direction regulation mechanism. First and second flow passage switching mechanisms have a cylinder device 13 for switching and a drive device. The cylinder device for switching has a cylinder 20 for switching, a drain side piston, a supply side piston, and a piston rod 22 for switching. In the piston rod for switching, an in-rod communication flow passage 22a for communicating a first cylinder chamber with a second cylinder chamber is formed, and a communication hole 13d for fluid which communicates the second cylinder with the outside and can introduce atmospheric air is formed. The in-rod communication flow passage has a first cylinder chamber side opening opened in the first cylinder chamber and a second cylinder chamber side opening opened in the second cylinder chamber. The fluid communication hole and the second cylinder chamber side opening are not opposed to each other.SELECTED DRAWING: Figure 2
Inventors:
Yoshiteru Tanigawa
Shota Kudo
Yoshiyuki Tsutsui
Shota Kudo
Yoshiyuki Tsutsui
Application Number:
JP2020082375A
Publication Date:
November 24, 2021
Filing Date:
May 08, 2020
Export Citation:
Assignee:
Denkisha Machinery Works Co., Ltd.
International Classes:
B01D61/06; C02F1/44; F15B3/00
Domestic Patent References:
| JP2016022410A | ||||
| JP58178887A | ||||
| JP47015561Y1 |
Foreign References:
| US20080105617 |
Attorney, Agent or Firm:
Hideyuki Sugiura