| 摘要 |
<p>A vehicle security device for selectively passing or blocking exhaust fumes from an internal combustion engine, comprising an inlet manifold pipe section (1a) for receiving exhaust fumes from said engine, and juxtaposed therewith an outlet exhaust pipe section (1b) for venting exhaust fumes; a gas-tight housing (2) provided between both sections and completing an exhaust flow path therebetween; a slidable barrier (12) located within the housing and movable between a first position obstructing the flow path between the sections and a second position wherein exhaust flow is permitted between the sections; and actuator means (14) such as electro-mechanical means, or a working fluid system for selectively moving the barrier between the first position and the second position.</p> |
