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By 1933, the problems had been worked out and the Perseus went on to become the first sleeve valve aero-engine in the world, to be put into large quantity production. [ 2 ] The result was a Bristol Mercury -sized engine adapted to the sleeve valve system, the Perseus, and its smaller cousin, the Bristol Aquila .
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An unusual form of four-stroke model engine that uses what is essentially a sleeve-valve format, is the British RCV series of "SP" model engines, which use a rotating cylinder liner driven through a bevel gear at the cylinder liner's "bottom", which is actually at the aft end of the cylinder; and, even more unusually, have the propeller shaft ...
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The Aquila was a nine-cylinder single-row radial aircraft engine designed by the Bristol Engine Company starting in 1934. A sleeve valve engine, its basic design was developed from the Bristol Perseus. The Aquila was never used in production, but further developments led to the Bristol Hercules, Bristol Taurus, and Bristol Centaurus.
Vehicle production was conducted at Patchway, Bristol. [1] The engine developed for the Bristol 400 found its way into many successful motor cars manufactured by other companies, such as Cooper, Frazer Nash and AC and, in 1954 and 1955, powered the Bristol 450 sports prototype to class victories in the 24 Hours of Le Mans race.
The Bristol Hercules is a 14-cylinder two-row radial aircraft engine designed by Sir Roy Fedden and produced by the Bristol Engine Company starting in 1939. It was the most numerous of their single sleeve valve ( Burt-McCollum , or Argyll , type) designs, powering many aircraft in the mid- World War II timeframe.
Known as the Bristol Orion, a name used previously for a variant of the Jupiter engine and later re-used for a turboprop, this development was also a two-row, 18 cylinder sleeve valve engine, with the displacement increased to 4,142 cu in (67,875.2 cm 3) [6.25 in × 7.5 in (159 mm × 191 mm)], nearly as large as the American Pratt & Whitney R ...