"Who is credited with the invention of the rotary internal combustion engine, introduced by NSU in their ""Ro 80"" in 1967 and used by Mazda in their ""RX""models, the first of which, the RX-2, was introduced in 1970?"
History of the internal combustion engine first compressed charge, compression ignition engine. In 1926, Robert Goddard launched the first liquid-fueled rocket. In 1939, the Heinkel He 178 became the world's first jet aircraft. In 1954 German engineer Felix Wankel patented a "pistonless" engine using an eccentric rotary design. Early internal combustion engines were started by hand cranking. Various types of starter motor were later developed. These included: Electric starters are now almost universal for small and medium-sized engines, while pneumatic starters are used for large engines. The first piston engines did not have compression, but ran on an air-fuel mixture sucked or blown in during the
Mazda RX-7 rotary engine and featured design cues reminiscent to the third generation RX-7. A production-ready concept could follow suit by 2017, marking 50 years since the revealing of Mazda's first rotary-powered sports car, the Mazda Cosmo. As a halo car for the Mazda brand, this vehicle may enter production as the RX-9. Mazda RX-7 The Mazda RX-7 is a front-engine, rear-drive sports car manufactured and marketed by Mazda from 1978-2002 across three generations—all noted for using a compact, lightweight Wankel rotary engine. The first RX-7 (1978–1985) was offered as two-passenger hatchback and as a 2+2 hatchback with "occasional" rear seats in