Title:
PRESSURE VARIABLE DEVICE AND ACTUATOR
Document Type and Number:
Japanese Patent JP2019052754
Kind Code:
A
Abstract:
To obtain a pressure variable device having fewer disadvantages, and an actuator comprising the pressure variable device.SOLUTION: For example, a pressure variable device according to an embodiment comprises a flow passage constitution part, and a switching valve mechanism. The flow passage constitution part constitutes a flow passage including a first throttle, and a plurality of second throttles arranged in series with the first throttle and in parallel with one another. The switching valve mechanism selectively connects the plurality of second throttles to the first throttle. Opening areas of the plurality of second throttles are different from one another.SELECTED DRAWING: Figure 3
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Inventors:
GOTO TATSUHIKO
OGA JUNICHIRO
OGA JUNICHIRO
Application Number:
JP2018135928A
Publication Date:
April 04, 2019
Filing Date:
July 19, 2018
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F16K7/06
Attorney, Agent or Firm:
Sakai International Patent Office