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 20
... Forward FIG . 2. - The Simplest Form of Steam Engine ; Direct Valve Motion . rough — the rough ashlar — that we are to develop , for , while this engine will run , and do very well under certain conditions , it is a wasteful power ...
... Forward FIG . 2. - The Simplest Form of Steam Engine ; Direct Valve Motion . rough — the rough ashlar — that we are to develop , for , while this engine will run , and do very well under certain conditions , it is a wasteful power ...
Сторінка 21
... forward - to the right . But before going further it is best to explain how to take the expression , in hearing it said that an eccentric is " ahead " or " behind " the main crank - pin : Axle B Go Ahead C Back up Crank A Pin E FIG . 3 ...
... forward - to the right . But before going further it is best to explain how to take the expression , in hearing it said that an eccentric is " ahead " or " behind " the main crank - pin : Axle B Go Ahead C Back up Crank A Pin E FIG . 3 ...
Сторінка 22
... forward . As the wheel revolved to the right eccentric B would follow in the same direction and one - fourth of a turn behind the main - pin , and be said to be " a quarter behind the main pin , " which it always is with indirect motion ...
... forward . As the wheel revolved to the right eccentric B would follow in the same direction and one - fourth of a turn behind the main - pin , and be said to be " a quarter behind the main pin , " which it always is with indirect motion ...
Сторінка 23
... forward . It is understood that in Fig . 2 the 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 ...
... forward . It is understood that in Fig . 2 the 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 ...
Сторінка 24
... forward - the direction in which the piston will have to travel : and to accomplish this , the position of the eccentric must be changed to a point on the wheel exactly its opposite in location - 90 degrees on the other side of the main ...
... forward - the direction in which the piston will have to travel : and to accomplish this , the position of the eccentric must be changed to a point on the wheel exactly its opposite in location - 90 degrees on the other side of the main ...
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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