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 39
... stroke , the valve will be as far in the opposite direction as the angle of the short end ( distance between vertical lines through the upper two pin holes ) of the combi- nation lever will carry it ; this , as has been explained , is ...
... stroke , the valve will be as far in the opposite direction as the angle of the short end ( distance between vertical lines through the upper two pin holes ) of the combi- nation lever will carry it ; this , as has been explained , is ...
Сторінка 40
... stroke ahead , the upper end of the combination lever would also have its farthest inclination ahead and the resultant angle would lengthen the line of motion between the eccentric and valve ; this increases the travel of the valve at ...
... stroke ahead , the upper end of the combination lever would also have its farthest inclination ahead and the resultant angle would lengthen the line of motion between the eccentric and valve ; this increases the travel of the valve at ...
Сторінка 41
... stroke , increases the travel of the valve in that direction . So , if the full travel of the valve and the full throw of the eccentric are to be maintained as equal dis- tances and they are then the valve in Fig . 6 overtravels in each ...
... stroke , increases the travel of the valve in that direction . So , if the full travel of the valve and the full throw of the eccentric are to be maintained as equal dis- tances and they are then the valve in Fig . 6 overtravels in each ...
Сторінка 57
... stroke in working gear , either going ahead or backward , that was expected to equalize the alternate port openings , and it certainly does delay the motion of the valve at the end of its travel , holding the admission and exhaust ports ...
... stroke in working gear , either going ahead or backward , that was expected to equalize the alternate port openings , and it certainly does delay the motion of the valve at the end of its travel , holding the admission and exhaust ports ...
Сторінка 61
... stroke— exactly in the middle of the cylinder . But the main- pin , as may be noted , is not now precisely on the point of " lower quarter , " the slight variation being due to the angular position of the main rod , and if the back end ...
... stroke— exactly in the middle of the cylinder . But the main- pin , as may be noted , is not now precisely on the point of " lower quarter , " the slight variation being due to the angular position of the main rod , and if the back end ...
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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