Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 84.
Σελίδα 4
... eccentric sheave revolves with the crank - shaft . Let the line CD ( Fig . 2 ) represent the full travel of the ... eccentric sheave is equal to half the travel of the valve it drives , A C or AD represents the throw of the eccentric ...
... eccentric sheave revolves with the crank - shaft . Let the line CD ( Fig . 2 ) represent the full travel of the ... eccentric sheave is equal to half the travel of the valve it drives , A C or AD represents the throw of the eccentric ...
Σελίδα 5
... sheave , as the valve ar- rives at one ex- treme end of its B M stroke or the other . Draw AB perpendicular to CD . Then the point B will re- present the cen- tre ... eccentric sheave has moved from B to F. From DESIGNING VALVE GEARING . 5.
... sheave , as the valve ar- rives at one ex- treme end of its B M stroke or the other . Draw AB perpendicular to CD . Then the point B will re- present the cen- tre ... eccentric sheave has moved from B to F. From DESIGNING VALVE GEARING . 5.
Σελίδα 6
... eccentric sheave has moved from B to F ; and if we consider the line A F , which represents the throw of the eccentric sheave , to represent also the diameter of a circle , through one end A of which the line A D is drawn ; then the ...
... eccentric sheave has moved from B to F ; and if we consider the line A F , which represents the throw of the eccentric sheave , to represent also the diameter of a circle , through one end A of which the line A D is drawn ; then the ...
Σελίδα 7
... eccentric sheave ; and if the centre of the sheave is caused to advance beyond the point F , say for instance to the point E ( the valve circle , A MFP , being supposed to advance with it ) , it will be seen that the radius vector ...
... eccentric sheave ; and if the centre of the sheave is caused to advance beyond the point F , say for instance to the point E ( the valve circle , A MFP , being supposed to advance with it ) , it will be seen that the radius vector ...
Σελίδα 8
... eccentric sheave is supposed to be advancing , we obtain the same result ; for , whether the centre line of the sheave advances , with the valve - circle upon it , to- wards A D , or whether the line AD advances in the opposite ...
... eccentric sheave is supposed to be advancing , we obtain the same result ; for , whether the centre line of the sheave advances , with the valve - circle upon it , to- wards A D , or whether the line AD advances in the opposite ...
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.