Under the hood? A “100ci V-4 single-acting, trunk-piston, poppet-valve uniflow steam engine.” It delivers only 130–140 horsepower. But the torque? A mind-bending “2,500 foot-pounds.” That’s more than ...

Valves in general, have certain nonlinearities which degrade the precision of the control of air flow rates. Since the air flow rates are mainly dependent of the poppet position, the new valve equips ...

The Department of Water and Sanitation (DWS) has opened six valves at the Vaal Dam to gradually increase water outflows by another 200 cubic metres per second (mᵌ/s) and manage water levels. The ...