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1. (WO2018042661) PNEUMATIC ACTUATOR FOR TURBOCHARGER

Pub. No.:    WO/2018/042661    International Application No.:    PCT/JP2016/076007
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Tue Sep 06 01:59:59 CEST 2016
IPC: F02B 37/18
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: KATO, Shota
加藤 翔太
Title: PNEUMATIC ACTUATOR FOR TURBOCHARGER
Abstract:
The present invention provides a pneumatic actuator which is for a turbocharger and which can be easily controlled while achieving stable characteristics and suppressing hysteresis. The pneumatic actuator (10) for a turbocharger is equipped with: a case (18) having a pressure application port (22); an elastic diaphragm (20) sandwiched by the case (18) and a housing (19); a spring (24) for biasing the diaphragm (20); an actuator rod (16) which protrudes from the housing (19) and is attached at one end to the diaphragm (20) while attached at the other end to a rotatable lever (15) connected to a valve (9); and a spherical bearing which slides against the outer periphery of the actuator rod (16) with the actuator rod (16) passing therethrough and has a spherical outer peripheral surface, said spherical bearing being housed inside a holding part (27) of the housing (19).