. . . "1876-02-01Z"^^ . "1939-07-30Z"^^ . . . . . "Prosper L'Orange"@en . . . "Prosper L'Orange (born 1 February 1876, Beirut; died 30 July 1939, Stuttgart) was a German engineer and inventor who pioneered the precombustion chamber (or prechamber), which made possible high-speed diesel engines that did not require an air compressor, and enabled them to be built small enough for use in road vehicles."@en .