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 17
... balanced " fore and aft , " the frictional surfaces with the steam pressure bearing against them - the packing rings are not balanced at all ; while a D - slide valve may have nearly all of its bearing surface balanced . Lap is the ...
... balanced " fore and aft , " the frictional surfaces with the steam pressure bearing against them - the packing rings are not balanced at all ; while a D - slide valve may have nearly all of its bearing surface balanced . Lap is the ...
Сторінка 58
... , over the D - slide , plane- faced valve that has given , and is giving , such good service on all classes of engines . It is claimed that the piston type is the only perfectly balanced valve . But 58 THE WALSCHAERT VALVE GEAR.
... , over the D - slide , plane- faced valve that has given , and is giving , such good service on all classes of engines . It is claimed that the piston type is the only perfectly balanced valve . But 58 THE WALSCHAERT VALVE GEAR.
Сторінка 59
... balanced valve . But is it ? The parts to be balanced are those parts of the valve that confine the live steam ; that the live steam presses against the valve seat ; the parts that make the steam joint . Where is the piston valve balanced ...
... balanced valve . But is it ? The parts to be balanced are those parts of the valve that confine the live steam ; that the live steam presses against the valve seat ; the parts that make the steam joint . Where is the piston valve balanced ...
Сторінка 60
... balanced . The grooves into which the rings are fitted must not be made absolutely steam- tight , and they fit looser as they wear ; the live steam against the rings will go either under or over them : If the steam passes between the ...
... balanced . The grooves into which the rings are fitted must not be made absolutely steam- tight , and they fit looser as they wear ; the live steam against the rings will go either under or over them : If the steam passes between the ...
Сторінка 67
... , or those engaged in a certain class of work , that the Walschaert valve gear is in any way superior to the Stephenson link motion . 680 The fame of the De Glehn Balanced Compound engine THE WALSCHAERT VALVE GEAR 67.
... , or those engaged in a certain class of work , that the Walschaert valve gear is in any way superior to the Stephenson link motion . 680 The fame of the De Glehn Balanced Compound engine THE WALSCHAERT VALVE GEAR 67.
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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