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 19
... admission or outside admission valves may be used with the Walschaert gear , as the user may prefer , a better all ' round design of this gear can be produced when an outside admission valve is specified . There is a difference , though ...
... admission or outside admission valves may be used with the Walschaert gear , as the user may prefer , a better all ' round design of this gear can be produced when an outside admission valve is specified . There is a difference , though ...
Сторінка 20
... Valve Gear of the Present Day ... admission of steam to the cylinder must be one - fourth of the cycle of motion ahead of the piston . Therefore , if the connection from eccentric to valve is through a direct line 20 THE WALSCHAERT VALVE ...
... Valve Gear of the Present Day ... admission of steam to the cylinder must be one - fourth of the cycle of motion ahead of the piston . Therefore , if the connection from eccentric to valve is through a direct line 20 THE WALSCHAERT VALVE ...
Сторінка 22
... admission valves , while with direct motion , such as is shown in Fig . 2 , the eccentric is always- with the same kind of valve - a " quarter ahead of the pin . " Referring again to Fig . 3 , if the link EE was raised , eccentric C ...
... admission valves , while with direct motion , such as is shown in Fig . 2 , the eccentric is always- with the same kind of valve - a " quarter ahead of the pin . " Referring again to Fig . 3 , if the link EE was raised , eccentric C ...
Сторінка 23
... valve is of outside admission ; the eccentric E is just 90 degrees from the main - pin , and the valve is in an exactly central position on its seat - therefore without lead . If the steam throttle should now be opened , this engine ...
... valve is of outside admission ; the eccentric E is just 90 degrees from the main - pin , and the valve is in an exactly central position on its seat - therefore without lead . If the steam throttle should now be opened , this engine ...
Сторінка 24
... valve has no lead ; the edge of the valve and edge of the admission port are not even close to line- and - line , and the assisted rotation of the wheel would have to push the valve a distance equal to the amount of outside , or steam ...
... valve has no lead ; the edge of the valve and edge of the admission port are not even close to line- and - line , and the assisted rotation of the wheel would have to push the valve a distance equal to the amount of outside , or steam ...
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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