Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 31.
Σελίδα
... already occupied the attention of so many competent authorities , as Rankine , Zeuner , and others , to whose works I am indebted for much in- formation . For my excuse I must appeal to the fact , with which most engineers are well ...
... already occupied the attention of so many competent authorities , as Rankine , Zeuner , and others , to whose works I am indebted for much in- formation . For my excuse I must appeal to the fact , with which most engineers are well ...
Σελίδα 6
... already shown , cut the line A D in the same point , in which it would be cut by a perpendicular dropped upon it from the point F , which is the other end of the diameter A F , and at the same time the centre of the eccentric sheave ...
... already shown , cut the line A D in the same point , in which it would be cut by a perpendicular dropped upon it from the point F , which is the other end of the diameter A F , and at the same time the centre of the eccentric sheave ...
Σελίδα 9
... already shown that to ascertain the amount the valve travels from its central position , for any angular advance of the sheave , it is only necessary to cause the line AD to advance towards A B ( the centre line of the sheave ) ...
... already shown that to ascertain the amount the valve travels from its central position , for any angular advance of the sheave , it is only necessary to cause the line AD to advance towards A B ( the centre line of the sheave ) ...
Σελίδα 12
... already explained , assume that the line A D is the centre line of the crank , and cause it to revolve about the point A , through the same angular distance as the real centre line of the crank is supposed , in each case , to advance ...
... already explained , assume that the line A D is the centre line of the crank , and cause it to revolve about the point A , through the same angular distance as the real centre line of the crank is supposed , in each case , to advance ...
Σελίδα 13
... already open an amount equal to QL , and the amount that the valve is open , when the crank is on its dead point , is termed its lead . In the same manner it may be ascertained how much the port at the other end of the cylinder is ...
... already open an amount equal to QL , and the amount that the valve is open , when the crank is on its dead point , is termed its lead . In the same manner it may be ascertained how much the port at the other end of the cylinder is ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amount equal amount of lead Bisect brought into gear central position centre line close the port crank reaches crossed rods cutting the arc cutting the line cylinder dead-point describe arcs intersecting describe the arc describe the circle diameter describe divides the arc eccentric rods engine Euclid EXPANSION GEARING expansion valve find the point find the throw full gear given amount given position intersecting the line Join length line A B link diagram link-motion main valve circle main valve eccentric MCNP motion open an amount open rods parallel perpendicular point E point F posi position relative primary main valve Problem proportion radius equal radius rod radius vector reaches the position real position represent the centre represent the position represent the throw required to find right angles shaft single virtual eccentric slider spindle steam-port Stephenson's straight line throw and position triangle valve eccentric sheave valve gear valve-spindle virtual eccentric arm
Δημοφιλή αποσπάσματα
Σελίδα 2 - BAC shall be a right angle; and the angle in the segment ABC, which is greater than a semicircle, shall be less than a right angle ; and the angle in the segment ADC, which is less than a semicircle, shall be greater than a right angle. Join AE, and produce BA to F.
Σελίδα 3 - ABC must be less than a right angle : and therefore the angle in a segment ABC greater than a semicircle, is less than a right angle. And...
Σελίδα 1 - The angle in a semicircle is a right angle; the angle in a segment greater than a semicircle is less than a right angle; and the angle in a segment less than a semicircle is greater than a right angle.