6/13/2023 0 Comments Walschaerts valve gear animationThough the amount is very small, it is persistent, and locomotive engineers, in their ceaseless efforts to attain the nearest approach to perfection, have given this matter a great deal of attention. Now in all valve gears incorporating this link and die- block there is a certain amount of unavoidable error in the valve movements, due to the slipping of the die in the slot as the link oscillates. WE have already seen in previous chapters that a slotted link, with a die- block working in it, provided the means of reversing and expansive working in the valve gears described so far. It was later re- designed for a railway locomotive in 1908. This gear was invented in 1903 and first used on a traction engine. Further Methods of Distributing Steam to the CylindersĪ CLOSE- UP of the Baker valve gear applied to a New York Central fast freight locomotive.
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