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, 1913 - 245 стор. |
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Сторінка 24
... equal to the amount of outside , or steam , lap , before the cylinder could begin to receive steam through the admission port . So that valve - advance , or lead , will be the first re- quirement in remodelling the engine of Fig . 2 ...
... equal to the amount of outside , or steam , lap , before the cylinder could begin to receive steam through the admission port . So that valve - advance , or lead , will be the first re- quirement in remodelling the engine of Fig . 2 ...
Сторінка 35
... equal to the length of the radius rod . We have now completed the design of the Walschaert valve gear so far as it is represented by Fig . 6 , except in supplying the mechanism by which the reverse lever may shorten the cut - off and ...
... equal to the length of the radius rod . We have now completed the design of the Walschaert valve gear so far as it is represented by Fig . 6 , except in supplying the mechanism by which the reverse lever may shorten the cut - off and ...
Сторінка 39
... equal to twice the distance of lap plus lead . The connections from cross - head and valve are made to opposite ends of the combination lever , and it is plain to see that when the piston is at either end of its stroke , the valve will ...
... equal to twice the distance of lap plus lead . The connections from cross - head and valve are made to opposite ends of the combination lever , and it is plain to see that when the piston is at either end of its stroke , the valve will ...
Сторінка 41
... equal dis- tances and they are then the valve in Fig . 6 overtravels in each direction ; we have not allowed for that and the question is , How can the travel of the valve be correctly shortened up and not create any other interference ...
... equal dis- tances and they are then the valve in Fig . 6 overtravels in each direction ; we have not allowed for that and the question is , How can the travel of the valve be correctly shortened up and not create any other interference ...
Сторінка 42
... equal , as they should be , and now extend an arm down from the lower end of the link and connect the eccentric rod to its lowest point instead of to the link itself . We have completed the Engine Practical now , as it appears in Fig ...
... equal , as they should be , and now extend an arm down from the lower end of the link and connect the eccentric rod to its lowest point instead of to the link itself . We have completed the Engine Practical now , as it appears in Fig ...
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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 Egide Walschaert equal equipped exact centre exactly exhaust forward full gear Hobart-Allfree hub centre inches inside admission valves lap and lead length link foot link fulcrum live steam lost motion lower end main crank-pin main rod main valve main-pin moved pin hole piston valve port opening position quadrant radius bar radius rod reach rod return crank reverse lever reverse shaft rocker rocker-arm schaert shortened side steam lap Stephenson link motion stroke tion transmission bar 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