Kitz F Series - Actuator Driving Mechanism ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・５

Document No.：KE-4010-11                                            Page: 5/58

8.  ActuatorDrivingMechanism

8.1TypeFAdoubleactionactuators



TheairpressuresuppliedintoChamber[A]throughPort ① pushesthepistonsandthegearrackoutwards,
andreleasestheairleftinChamber[B]throughPort ②.  Thegearrackrotatesthepistongearandtheshaft
counter-clockwisetodrivethevalve.  Reversesupplyoftheairpressurereverselyactivatesvalveoperation. 

8.2TypeFASspringreturnactuators



TheairpressuresuppliedintoChamber[A]throughPort ① pushesthepistonsandthegearrackoutwards,
compressingthespring,andreleasestheairleftinChamber[B]throughPort ②.  Thegearrackrotatesthe
pistongear and theshaft counter-clockwiseto drivethevalve.  At themoment the air in Chamber[A]is
dischargedthroughthesolenoidvalve,thespringforcepushesthepistonstothereversedirection,andthe
gearrackrotatesthepiniongearandtheshaftclockwisetoreverselydrivethevalve.
