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return crank造句

"return crank"是什么意思  
造句與例句手機版
  • Instead of eccentrics, double return cranks were used to drive the eccentric rods, and a launch-type expansion link was used.
  • The eccentric crank ( UK : return crank ) ( 1 ) is rigidly attached to the con-rod pin connected to the main drive wheel.
  • Unlike a cam, which also converts rotary into linear motion at almost any rate of acceleration and deceleration, an eccentric or return crank can only impart simple harmonic motion.
  • All three cylinders actuated the middle coupled axle and their valves were actuated from this axle by an eccentric for the inside cylinder and two return cranks for the outer cylinders.
  • The end of the piston rod is connected to a built-up crank at the centre of the crankshaft . The crankshaft has the valve return crank at one end and a flywheel at the other.
  • A return crank fulfils the same function except that it can only work at the end of an axle or on the outside of a wheel whereas an eccentric can also be fitted to the body of the axle between the wheels.
  • No . 4767, built at Crewe and delivered in December 1947, had outside Stephenson valve gear : instead of eccentrics, double return cranks were used to drive the eccentric rods, and a launch-type expansion link was used.
  • American locomotives universally employed inside Stephenson valve gear placed between the frames until around 1900 when it quickly gave way to outside eccentrics or return cranks or else between the frames driven from the axle through eccentrics, as was mostly the case in Great Britain.
  • With the reverser in mid gear position since there should be no superimposed return crank motion, the expansion link die slot should be an arc of a circle centred on the pivot in mid gear and of radius equal to the length of the radius rod.
  • It's difficult to see return crank in a sentence. 用return crank造句挺難的
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