This is a demonstration model of a uniflow steam engine valve introduced in 1908 by Johann Stumpf of Germany. The model was constructed by Severn-Lamb Ltd. of Stratford-upon-Avon, England. Engines ...

Beneath the hood, the Jeep is home to a 100ci V4 trunk-piston, poppet-valve uniflow steam engine from the 1960’s. It only produces between 130 hp and 140 hp, but churns out a remarkable 2,500 lb ...

The ordinary type of marine steam reciprocating engine often operated more economically. In those days, the cost of coal was much less than it is now so there was less urge to reduce its ...