he engine-piston A has made some notable improvements in steam engine has finished one-quarter of its downstroke. During this design, now comes forth with an invention in which is controlled in accordance with the requirements of he claims to have solved the problem of utilizing kero- speed and… … quick though gradual combustion of the tured is of the single-cylinder, two-cycle type. Its hollowed trunk-piston A is fin- fuel renders it possible to subject the cylin- SECTION OF A SINGLE-CYLINDER OSTERGREN der charge to great pressure. As soon as ished off with a conical cap conforming in the…
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