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 17
... connecting cylinder is usually made hollow in order that the 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 ...
... connecting cylinder is usually made hollow in order that the 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 ...
Сторінка 20
... load as it does when working against a heavier load . We are to supply those
deficiencies noted , and bring it up to an equivalent of the engine that is on each
side of a modern locomotive . With any engine , the port opening for admission of
...
... load as it does when working against a heavier load . We are to supply those
deficiencies noted , and bring it up to an equivalent of the engine that is on each
side of a modern locomotive . With any engine , the port opening for admission of
...
Сторінка 25
... against the piston earlier at the beginning of the stroke , and the full opening of
the admission port takes place sooner : The amount of advance of the eccentric
necessary to secure the decided port opening for lead depends on the amount of
...
... against the piston earlier at the beginning of the stroke , and the full opening of
the admission port takes place sooner : The amount of advance of the eccentric
necessary to secure the decided port opening for lead depends on the amount of
...
Сторінка 30
If the outside lap of the valve amounts to one ( 1 ) inch , and the required port
opening for lead is onethirty - second ( 32 ) inch , the distance between the
vertical lines through the centres of the pin holes in the upper part of the
combination ...
If the outside lap of the valve amounts to one ( 1 ) inch , and the required port
opening for lead is onethirty - second ( 32 ) inch , the distance between the
vertical lines through the centres of the pin holes in the upper part of the
combination ...
Сторінка 31
... angle , and the valve drawn back exactly one and one - thirty - second ( 132 )
inches ( we are assuming that the valve has one ( 1 ) inch outside , or steam , lap
, and one - thirty - second ( 32 ) inch is expected to be the amount of port opening
.
... angle , and the valve drawn back exactly one and one - thirty - second ( 132 )
inches ( we are assuming that the valve has one ( 1 ) inch outside , or steam , lap
, and one - thirty - second ( 32 ) inch is expected to be the amount of port opening
.
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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