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1. (WO2013111503) ACTUATOR

Pub. No.:    WO/2013/111503    International Application No.:    PCT/JP2012/083827
Publication Date: Fri Aug 02 01:59:59 CEST 2013 International Filing Date: Fri Dec 28 00:59:59 CET 2012
IPC: F01D 17/10
F16K 29/00
Applicants: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
三菱日立パワーシステムズ株式会社
Inventors: HATA Masaki
畑 斉樹
NISHIMURA Toshinari
西村 利也
KAWAMURA Kazuhito
河村 一仁
Title: ACTUATOR
Abstract:
This actuator (1) comprises: a cylinder (2) which has a tube-like shape and which is filled with fluid; a piston (3) which divides the inside of the cylinder in the axial direction thereof into a first chamber (11) and a second chamber (12), can be moved in a reciprocating manner, and opens and closes a main valve (4); a fluid supply means which supplies fluid to the second chamber; a pressing means (6) which presses the piston in the axial direction toward the second chamber; a flow passage (7) which connects the first chamber and the second chamber; and a pilot valve (8) which closes the connecting flow passage.