The Walschaert and Other Modern Radial Valve Gears for Locomotives: A Practical Treatise on the Locomitive Valve Actuating Mechanism Invented by Egide Walschaerts, with the History of Its Development and Its Evolution Into the Mechanically Correct Locomotive Valve Gear of the Present Day ...Norman W. Henley publishing Company, 1912 - 245 стор. |
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Сторінка 24
... piston will have to travel : and to accomplish this , the position of the eccentric must be changed to a point on the wheel exactly its opposite in location - 90 degrees on the other side of the main - pin - a quarter- turn ahead of the ...
... piston will have to travel : and to accomplish this , the position of the eccentric must be changed to a point on the wheel exactly its opposite in location - 90 degrees on the other side of the main - pin - a quarter- turn ahead of the ...
Сторінка 25
... piston at the prime starting point of its stroke --- while the main - pin is on the dead- centre , and the engine ... piston at the end of the stroke , but also gets the power of the steam against the piston earlier at the beginning of ...
... piston at the prime starting point of its stroke --- while the main - pin is on the dead- centre , and the engine ... piston at the end of the stroke , but also gets the power of the steam against the piston earlier at the beginning of ...
Сторінка 27
... piston represented the first starting of the engine . These changes taken together have not changed the direction in which the engine will run . But notice : We had lengthened the return crank of the eccentric , placing it more than 90 ...
... piston represented the first starting of the engine . These changes taken together have not changed the direction in which the engine will run . But notice : We had lengthened the return crank of the eccentric , placing it more than 90 ...
Сторінка 28
... piston , through suitable connections with the cross- head , the established lead remaining unchanged throughout the different points of cut - off in both forward and backward gear . The engine is of direct valve motion when the reverse ...
... piston , through suitable connections with the cross- head , the established lead remaining unchanged throughout the different points of cut - off in both forward and backward gear . The engine is of direct valve motion when the reverse ...
Сторінка 30
... piston is known to be in the exact centre of the cylinder , and then connect the lower end of the combination lever ( still in a plumb perpendicular position ) with the cross - head by means of a short link - bar ; now draw the cross ...
... piston is known to be in the exact centre of the cylinder , and then connect the lower end of the combination lever ( still in a plumb perpendicular position ) with the cross - head by means of a short link - bar ; now draw the cross ...
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Загальні терміни та фрази
90 degrees actuated admission port ahead Air Brake American Locomotive Company angle axle back end backward Baldwin Locomotive bell crank bination lever block boiler combination lever compression valve crosshead link cut-off D-slide valve dead centre diagrams direction disconnected distance driving wheels eccentric crank eccentric rod eccentric to valve Egide Walschaert equal equipped exact centre exactly exhaust forward full gear hub centre inches inside admission valves length link foot link fulcrum live steam lost motion lower end main crank-pin main rod main-pin main-valve moved pin hole piston valve port opening position quadrant radius bar radius rod return crank reverse lever reverse shaft rocker rocker-arm schaert shortened side steam chest steam lap Stephenson link motion stroke tion transmission bar trunnion upper end valve events valve motion valve rod valve stem valve-stem valves of inside vertical Walschaert eccentric Walschaert gear Walschaert motion Walschaert valve gear yoke