Information om | Engelska ordet DESMODROMIC

Exempel på hur man kan använda DESMODROMIC i en mening

• A desmodromic valve has two cams and two actuators, for positive opening and closing without a return spring.
• Like most modern Ducati motorcycles, it has a 90° V-twin engine, called an L-twin by Ducati, with desmodromic valves, and tubular steel trellis frame, designed by Fabio Taglioni (1920–2001).
• Rotary valves are potentially highly suitable for high-revving engines, such as those used in racing sportscars and F1 racing cars, on which traditional poppet valves with springs can fail due to valve float and spring resonance and where the desmodromic valve gear is too heavy, large in size and too complex to time and design properly.
• Thomas, Guyot, and Duray returned to the French Grand Prix with 4½-liter twin-cam desmodromic valved racers featuring twin carburettors, five-speed gearbox, and four-wheel brakes.
• Since the 1960s, Italian motorcycle manufacturer Ducati has used a desmodromic valvetrain to counter this problem and allow for higher engine speeds by using positive closing as well as opening of the valves, without springs.
• Ducati history is classically based on 90° V-twin (or L-twin) engines, using desmodromic valve technology.
• The high RPMs needed to produce competitive power in a small engine generated valve float, which Taglioni believed could be overcome with desmodromic valve actuation.

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