Throttling

rt A SCHEME for utilizing the backpressure caused by throttling the engine exhaust is shown in patent No 707,438 (Oetiker-Motorbrernsen A.G., 22 Biristenstrasse, arich,......

The Exhaust For Braking

but in such a way that at the closed throttle position the lower end is obstructed by the butterfly valve, as shown at 5; the upper end is open to atmosphere. The cylinder......