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 ... |
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Результати 1-5 із 48
Сторінка 17
Lap is the distance by which the valve overcovers the steam admission port —
the distance the valve must be moved from an exact central position on its seat
before the port begins to open to admit steam to the cylinder . Lead is the
distance ...
Lap is the distance by which the valve overcovers the steam admission port —
the distance the valve must be moved from an exact central position on its seat
before the port begins to open to admit steam to the cylinder . Lead is the
distance ...
Сторінка 24
... the wheel , is that the valve has no lead ; the edge of the valve and edge of the
admission port are not even close to lineand - line , and the assisted rotation of
the wheel would have to push the valve a distance equal to the amount of outside
...
... the wheel , is that the valve has no lead ; the edge of the valve and edge of the
admission port are not even close to lineand - line , and the assisted rotation of
the wheel would have to push the valve a distance equal to the amount of outside
...
Сторінка 25
... this kind of an eccentric the advance necessary to secure lead , or overcome
the outside lap , with outside admission valves we must lengthen the return crank
slightly , but still keeping eccentric pin E the same distance from the hub centre .
... this kind of an eccentric the advance necessary to secure lead , or overcome
the outside lap , with outside admission valves we must lengthen the return crank
slightly , but still keeping eccentric pin E the same distance from the hub centre .
Сторінка 26
valve , because the advance of the valve must be exactly the distance of lap plus
lead . In Fig . 4 we have taken the engine illustrated in Fig . 2 , and interposed the
double rocker - arms beIndirect Valve Motion Engine Runs Forward Fig . 4.
valve , because the advance of the valve must be exactly the distance of lap plus
lead . In Fig . 4 we have taken the engine illustrated in Fig . 2 , and interposed the
double rocker - arms beIndirect Valve Motion Engine Runs Forward Fig . 4.
Сторінка 28
... and while the combination lever remains at right angles to the valve - stem , the
distance from eccentric to valve is not changed and its attachment has had no
effect on the valve , which is central on its seat with both admission ports covered
...
... and while the combination lever remains at right angles to the valve - stem , the
distance from eccentric to valve is not changed and its attachment has had no
effect on the valve , which is central on its seat with both admission ports covered
...
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Загальні терміни та фрази
action admission port admission valves advance ahead American amount angle axle backward balanced block Brake broken built carried cause centre combination lever common compression connection correct cover crank crosshead cut-off cylinder dead diagrams direction disconnected distance eccentric rod effect engine equal equipped exactly exhaust forward frame front fulcrum give given hole illustrated inches inside admission lead length link motion link-block locomotive lower end main rod main-pin mechanism method moved movement necessary notch obtained opening opposite piece piston placed position pounds practical pressure quarter question radius rod reason received reference remove represented reverse lever road secure shaft short shortened shown side steam Stephenson link stroke tion train transmission turning valve motion valve rod valve-stem vertical Walschaert gear Walschaert valve gear weight wheel
Бібліографічна інформація
| Назва | 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 ... |
| Автор | William Wallace Wood |
| Видання | 3 |
| Видавець | Norman W. Henley publishing Company, 1912 |
| Оригінал із | Мічиганський університет |
| Оцифровано | 14 бер. 2013 |
| Обсяг | 245 стор. |
| Експортувати бібліографічний опис | BiBTeX EndNote RefMan |