Patent ID: 6880570

Claim:
A linear three port actuation valve for a vehicle, comprising: a valve body formed with a supply port, a control port, an exhaust port, and an exhaust valve seat; a valve seat member in the body, the valve seat member defining a control valve seat; a poppet defining a head end and a ball end, the poppet being slidably disposed in the valve seat member for movement between an exhaust configuration, in which the head end is distanced from the exhaust valve seat to establish fluid communication from the supply port, through the exhaust valve seat, to the exhaust port, and a control configuration, in which the head end blocks the exhaust valve seat; a ball contacting the ball end of the poppet adjacent the control valve seat, the ball blocking the control valve seat when the poppet is in the exhaust configuration, the ball being distanced from the control valve seat when the poppet is in the control configuration to permit fluid communication from the supply port, through the control valve seat, to the control port.