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 23
... backward , the eccentric would pull the valve backward also , and steam would be admitted to the forward end of the cylinder , pushing the piston back in spite of our efforts , and it would hold the main - pin on the back dead - centre ...
... backward , the eccentric would pull the valve backward also , and steam would be admitted to the forward end of the cylinder , pushing the piston back in spite of our efforts , and it would hold the main - pin on the back dead - centre ...
Сторінка 24
... backward , and of course the direction is fixed : it can only run that way . Besides having no power to turn the wheel when the main - pin is on the dead - centre regardless of how much pressure is in the cylinder , the other reason for ...
... backward , and of course the direction is fixed : it can only run that way . Besides having no power to turn the wheel when the main - pin is on the dead - centre regardless of how much pressure is in the cylinder , the other reason for ...
Сторінка 26
... backward motion of the eccentric will be reversed by the rocker - arms and the valve will , as required , still have a forward motion , admitting live steam to the back end of the cylinder and exhausting the contents of the front end ...
... backward motion of the eccentric will be reversed by the rocker - arms and the valve will , as required , still have a forward motion , admitting live steam to the back end of the cylinder and exhausting the contents of the front end ...
Сторінка 28
... backward gear . The engine is of direct valve motion when the reverse lever is in the go- ahead position , and of indirect motion when the lever in the back - up notch , the reasons for this becoming apparent as the method for reversing ...
... backward gear . The engine is of direct valve motion when the reverse lever is in the go- ahead position , and of indirect motion when the lever in the back - up notch , the reasons for this becoming apparent as the method for reversing ...
Сторінка 29
... backward and the distance will be lengthened , and this shortening or lengthening of the line of motion will cause the valve to be displaced , Eccentric Rod X Valve Stem Con.bination Lever FIG . 5. - Simple Form of Steam Engine with the ...
... backward and the distance will be lengthened , and this shortening or lengthening of the line of motion will cause the valve to be displaced , Eccentric Rod X Valve Stem Con.bination Lever FIG . 5. - Simple Form of Steam Engine with the ...
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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 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