Accumulator Switch Valve

Accumulator Switch Valve

Outline
^ The accumulator switch valve switches the oil passage that is applied to the high clutch accumulator. While in the forward drive range, the high clutch operation pressure is applied to the high clutch accumulator via the accumulator switch valve. While in R position, low and reverse brake operation pressure is applied to the high clutch accumulator via the accumulator switch valve.

Operation
^ The accumulator switch valve is pushed upward by spring force. While in the forward drive range, line pressure (1) from the manual valve is applied to the top end of the accumulator switch valve and pushes the valve downward. In this condition, high clutch operation pressure (23) is applied to the high clutch accumulator via the valve.





^ While in R position the valve is pushed upward by the spring force because line pressure (1) is drained. In this condition, low and reverse brake operation pressures (20) are applied to the high clutch accumulator via the valve.