Patent ID: 7097261

Claim:
A modulator comprising an inlet, an exhaust and an outlet, the modulator comprising a piston moveable in response to a control pressure in a control chamber to vary supply of fluid under pressure to the outlet, the piston having a piston surface which is generally perpendicular to the direction of movement of the piston, the piston surface partially forming the control chamber, wherein the modulator comprises a first end face and a second end face, the exhaust and the inlet being provided in the first end face and the outlet being provided in the second end face, the modulator further comprising a hold solenoid connected between the inlet and the control chamber by means of connections, and a dump solenoid connected between the control chamber and the exhaust by means of connections, wherein the connections between the hold solenoid, the inlet and the control chamber and the connections between the dump solenoid, the control chamber and the exhaust do not cross an infinite imaginary plane on which the piston surface lies.