| 摘要 |
<p>There is disclosed an exhaust brake of the sliding valve gate (15) type. The exhaust brake comprises a piston cylinder device (17) to operate the slidable valve gate (15) to open or close the exhaust brake. The valve gate (15) has an aperture (54) therethrough to relieve manifold pressure, and control arrangement (6, 26, 28, 29) are provided for controlling the passage of exhaust gases through the aperture in the valve gate. The control means is selectable variably to control venting of exhaust gases according to driving conditions of a vehicle as determined by a driver of the vehicle. Conveniently, an adjustment device is locatable in the drive compartment of the vehicle for controlling the pressure level of fluid applied to the exhaust brake. The adjustable device is additional to the usual exhaust brake valve operating mechanism usually supplied with exhaust brakes.</p> |
