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Constantinesco (automobile)
The Constantinesco was a British-French automobile produced from 1926 to 1928. It was built by George Constantinesco, a Romanian-born engineer and inventor, who had gained fame by his invention of an improved version of a machine gun synchronization gear (a device allowing aircraft-mounted machine guns to fire through the propeller without striking the blades themselves) that replaced the clumsy mechanical linkages that had been previously employed with a hydrostatic device based on his own novel theory of sonics, or "wave transmission".
==Mechanical torque converter==
The inspiration behind the car was Constantinesco's 1923 invention of the "oscillating masses" mechanical torque converter,〔http://www.rexresearch.com/constran/1constran.htm〕 which replaced clumsy gear shifting with a smooth, highly efficient, continuously variable transmission. The transmission ratio was determined by the oscillation of a pendulum, the extent of the oscillations being determined by the pendulum's mass, ingenious attachment, and dimensions in combination with the torque and speed of the engine and the road wheels. An oscillating masses torque converter can eliminate entire complex geared automotive transmissions with their jerky shifting, added weight and low efficiency. Compared to a similar car with a gear based transmission, Constantinesco's needed a substantially smaller engine, was lighter overall, and was much more fuel efficient. In the car, the mechanical torque converter was embodied in a 494 cc twin-cylinder two-stroke engine of his own design, where it was mounted between the engine's cylinders.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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