Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 83.
Σελίδα 4
... point , A , in which this line BF cuts , or is cut by , the circumference of the circle ABC : and therefore , without drawing the perpendicular CA , we know that it would , if drawn , cut the line BF in that point , A , in which this ...
... point , A , in which this line BF cuts , or is cut by , the circumference of the circle ABC : and therefore , without drawing the perpendicular CA , we know that it would , if drawn , cut the line BF in that point , A , in which this ...
Σελίδα 6
... point F drop a perpendicular FP on to CD , cutting CD in the point P. Then since B A is also perpendicular to CD , FP is parallel to B A , and A P is equal to MF ; therefore AP also represents the distance the valve has travelled from ...
... point F drop a perpendicular FP on to CD , cutting CD in the point P. Then since B A is also perpendicular to CD , FP is parallel to B A , and A P is equal to MF ; therefore AP also represents the distance the valve has travelled from ...
Σελίδα 7
... 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 increases in length exactly as the distance between F , the centre of the eccentric ...
... 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 increases in length exactly as the distance between F , the centre of the eccentric ...
Σελίδα 16
... point F , then AF will be equal to E A , and upon AF as a diameter we describe the circle FT W , which will be what is termed the secondary valve - circle , and it will touch the primary valve - circle , E VL , at the point A. Now when ...
... point F , then AF will be equal to E A , and upon AF as a diameter we describe the circle FT W , which will be what is termed the secondary valve - circle , and it will touch the primary valve - circle , E VL , at the point A. Now when ...
Σελίδα 19
... point Q on the line A D , set off QL equal to the required lead ; and at the point L erect the perpendicular L 0 , cutting the circle BDMC in the point E. Join EA and produce it till it again cuts the circle B D M C in a point F. Upon ...
... point Q on the line A D , set off QL equal to the required lead ; and at the point L erect the perpendicular L 0 , cutting the circle BDMC in the point E. Join EA and produce it till it again cuts the circle B D M C in a point F. Upon ...
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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.