Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 24.
Σελίδα 18
... proportions of the various parts of a valve gear , and the relative movements of the same can be at once determined . SIMPLE VALVE GEAR . PROBLEM I. The throw of the 18 DESIGNING VALVE GEARING . PRINCIPLES UPON WHICH THE GRAPHIC METHOD ...
... proportions of the various parts of a valve gear , and the relative movements of the same can be at once determined . SIMPLE VALVE GEAR . PROBLEM I. The throw of the 18 DESIGNING VALVE GEARING . PRINCIPLES UPON WHICH THE GRAPHIC METHOD ...
Σελίδα 87
... proportions of the other portions of the valves in the same manner as in Problem VII . , except that we must take into con- sideration the extreme positions of the two halves of the expansion valve , which are constructed so as to be ...
... proportions of the other portions of the valves in the same manner as in Problem VII . , except that we must take into con- sideration the extreme positions of the two halves of the expansion valve , which are constructed so as to be ...
Σελίδα 113
... proportion as the line A B divides the chord , FH , of the link . In the present case it divides it equally ; therefore the point X , in the line YZ , corresponds to the point t in the chord of the link , and to the point A in the arc ...
... proportion as the line A B divides the chord , FH , of the link . In the present case it divides it equally ; therefore the point X , in the line YZ , corresponds to the point t in the chord of the link , and to the point A in the arc ...
Σελίδα 120
... proportion as the centre line , A B , of the valve - spindle divides FLH , the arc of the link ; in the present case , this arc is divided by AB into two equal parts , therefore we Join divide QR in the same manner in the point S 120 ...
... proportion as the centre line , A B , of the valve - spindle divides FLH , the arc of the link ; in the present case , this arc is divided by AB into two equal parts , therefore we Join divide QR in the same manner in the point S 120 ...
Σελίδα 121
... arc , and the motion of any point T in the arc of the link will be ascertained by finding a point U in the curve DSE which will divide it in the same proportion as the arc of the link is divided by STEPHENSON'S LINK - MOTION . 121.
... arc , and the motion of any point T in the arc of the link will be ascertained by finding a point U in the curve DSE which will divide it in the same proportion as the arc of the link is divided by STEPHENSON'S LINK - MOTION . 121.
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.