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
... pressure against the outer ends of the pistons will be held in perfect equalization and the valve be thereby more uniformly balanced ; in some cases , however , the opening through this " spool , " - as the whole valve , complete , is ...
... pressure against the outer ends of the pistons will be held in perfect equalization and the valve be thereby more uniformly balanced ; in some cases , however , the opening through this " spool , " - as the whole valve , complete , is ...
Сторінка 24
... pressure is in the cylinder , the other reason for the engine not starting promptly , even when assistance should be given by pinching the wheel , is that the valve has no lead ; the edge of the valve and edge of the admission port are ...
... pressure is in the cylinder , the other reason for the engine not starting promptly , even when assistance should be given by pinching the wheel , is that the valve has no lead ; the edge of the valve and edge of the admission port are ...
Сторінка 57
... pressures against the valve pistons being less perfect on account of the lessened area exposed to the live steam pressure on the back valve piston , due to the entrance of the valve - stem at that end of the steam chest . Up to this ...
... pressures against the valve pistons being less perfect on account of the lessened area exposed to the live steam pressure on the back valve piston , due to the entrance of the valve - stem at that end of the steam chest . Up to this ...
Сторінка 59
... pressure of live steam , but very few of such valves are in existence to - day , and probably none on the large , modern class of engines . The D - slide valve can be , and is , most nicely balanced , and may , if desired , have a ...
... pressure of live steam , but very few of such valves are in existence to - day , and probably none on the large , modern class of engines . The D - slide valve can be , and is , most nicely balanced , and may , if desired , have a ...
Сторінка 60
... pressure , no packing . If the steam finds the other side of the rings , the rings will be pressed against the walls of the valve chest and the opposite side of the groove , and pack with a steam - tight joint , but with enormous ...
... pressure , no packing . If the steam finds the other side of the rings , the rings will be pressed against the walls of the valve chest and the opposite side of the groove , and pack with a steam - tight joint , but with enormous ...
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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