Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 57.
Σελίδα 12
... circle , which will be what is termed the primary valve circle , because AE represents the actual throw of the ... lap of the valve , describe the circle VQ T , which is termed the lap - circle . Now in the position , in which we have ...
... circle , which will be what is termed the primary valve circle , because AE represents the actual throw of the ... lap of the valve , describe the circle VQ T , which is termed the lap - circle . Now in the position , in which we have ...
Σελίδα 13
... lap - circle VQT , whose radius was originally made equal to the lap of the valve , therefore the line A Q ( Fig . 4 ) also represents the lap of the valve , and as the valve has moved a distance AL to the right of its central position ...
... lap - circle VQT , whose radius was originally made equal to the lap of the valve , therefore the line A Q ( Fig . 4 ) also represents the lap of the valve , and as the valve has moved a distance AL to the right of its central position ...
Σελίδα 14
... circle in the place of the outside lap - circle , VQT . We have already shown that when the crank is at the commencement of its stroke the valve is open an amount equal to Q L , and we have assumed , for the purposes of our diagram ...
... circle in the place of the outside lap - circle , VQT . We have already shown that when the crank is at the commencement of its stroke the valve is open an amount equal to Q L , and we have assumed , for the purposes of our diagram ...
Σελίδα 15
... lap circles again intersect , for the radius vector , VA , is then exactly equal to the lap of the valve , and ... circle . We have hitherto treated of the valve as only moving to the right of its central position , we will therefore now ...
... lap circles again intersect , for the radius vector , VA , is then exactly equal to the lap of the valve , and ... circle . We have hitherto treated of the valve as only moving to the right of its central position , we will therefore now ...
Σελίδα 17
... circumference of the lap - circle and the circumference of the valve - circle , thus when the crank is in the position AB ( Fig . 4 ) , A Y is the radius vector and represents the amount that the valve is to the right of its central ...
... circumference of the lap - circle and the circumference of the valve - circle , thus when the crank is in the position AB ( Fig . 4 ) , A Y is the radius vector and represents the amount that the valve is to the right of its central ...
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.