LS430 − NEW FEATURES 25 Centrifugal Fluid Pressure Canceling Mechanism For the following reason, the centrifugal fluid pressure canceling mechanism is used on C 1 , C 2 , C 3 , and C 4 clutch. Shifting clutch operation is affected not only by the valve body controlling fluid pressure but also by centrifugal fluid pressure applied to fluid in the clutch piston oil pressure chamber. Centrifugal fluid pressure canceling mechanism has chamber B to reduce this affect applied to the chamber A. As a result, smooth shifting with excellent response has been achieved.
Piston C 4 Clutch C 1 Clutch Chamber B Chamber A (for C 4 ) Chamber A (for C 1 ) 259LSK09 Centrifugal Fluid Pressure Applied to the Chamber A Clutch Target Fluid Pressure Centrifugal Fluid Pressure Applied to Chamber B Piston Fluid Pressure Chamber Chamber B (Lubrication Fluid) Shaft Side Fluid Pressure Applied to Piston 157CH17 Fluid pressure applied to piston Centrifugal fluid pressure applied to chamber B Target fluid pressure (original clutch pressure) — =