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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Сторінка 19
I is a simple sketch illustrating the theory of the main valve of an engine . ... a
difference only in the position of the eccentric in its relation to the main crank - pin
, and the connections , as they must be made , between the radius rod and valve
...
I is a simple sketch illustrating the theory of the main valve of an engine . ... a
difference only in the position of the eccentric in its relation to the main crank - pin
, and the connections , as they must be made , between the radius rod and valve
...
Сторінка 21
connection from eccentric to valve is through a direct line of motion , as shown ,
without any levers interposed or " rocker - arms ” to reverse the direction of
movement , then , with the main - pin in the position as shown in Fig . 2 , the
eccentric ...
connection from eccentric to valve is through a direct line of motion , as shown ,
without any levers interposed or " rocker - arms ” to reverse the direction of
movement , then , with the main - pin in the position as shown in Fig . 2 , the
eccentric ...
Сторінка 22
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 and outside
admission ...
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 and outside
admission ...
Сторінка 23
ing , the main - pin , we will assume for the sake of clearer understanding that the
engine is in all cases running forward . ... just 90 degrees from the main - pin ,
and the valve is in an exactly central position on its seat — therefore without lead
.
ing , the main - pin , we will assume for the sake of clearer understanding that the
engine is in all cases running forward . ... just 90 degrees from the main - pin ,
and the valve is in an exactly central position on its seat — therefore without lead
.
Сторінка 24
Besides having no power to turn the wheel when the main - pin is on the dead -
centre regardless of how much pressure is in the cylinder , the other reason for
the engine not starting promptly , even when assistance should be given by ...
Besides having no power to turn the wheel when the main - pin is on the dead -
centre regardless of how much pressure is in the cylinder , the other reason for
the engine not starting promptly , even when assistance should be given by ...
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Загальні терміни та фрази
action admission port admission valves advance American amount angle axle block broken carried cause centre cents combination lever complete compression connection construction correct cover crank crosshead cut-off cylinder dead described desired diagrams direction disconnected distance drawings driving eccentric rod edition effect engine equal exactly exhaust explained forward frame front fulcrum fully give given illustrated inches inside admission latter lead length link motion link-block locomotive lower end main rod main-pin manner mechanism method moved movement necessary notch obtained opening operation opposite piston placed position practical Price quarter question radius rod reference represents reverse lever secure short shortened showing shown side steam Stephenson link stroke tion troubles turning upper valve motion valve-stem vertical Walschaert gear Walschaert valve gear weight wheel
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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 | 27 вер. 2007 |
| Обсяг | 245 стор. |
| Експортувати бібліографічний опис | BiBTeX EndNote RefMan |