Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 21.
Σελίδα 4
... forward motion of the slide - valve , as the eccentric sheave revolves with the crank - shaft . Let the line CD ( Fig . 2 ) represent the full travel of the valve , and the point A the middle point of that line , and hence , relatively ...
... forward motion of the slide - valve , as the eccentric sheave revolves with the crank - shaft . Let the line CD ( Fig . 2 ) represent the full travel of the valve , and the point A the middle point of that line , and hence , relatively ...
Σελίδα 102
... forward and the other for the backward motion of the engine , and the two rods are attached one to each end of the link , which consists of a short bar , throughout the length of which is a slot or its equivalent , in which a slider ...
... forward and the other for the backward motion of the engine , and the two rods are attached one to each end of the link , which consists of a short bar , throughout the length of which is a slot or its equivalent , in which a slider ...
Σελίδα 103
... forward or backward gear , as the case may be ; and when it occupies a position midway between the extreme positions , the link is said to be in middle gear ; but " " when it occupies any other position in the link , LINK - MOTIONS . 103.
... forward or backward gear , as the case may be ; and when it occupies a position midway between the extreme positions , the link is said to be in middle gear ; but " " when it occupies any other position in the link , LINK - MOTIONS . 103.
Σελίδα 104
... forward or backward gear is understood to mean the nearest approach to that position which the particular form of link will admit of . We will now proceed to investigate the various forms of link- motion in general use ; and in doing so ...
... forward or backward gear is understood to mean the nearest approach to that position which the particular form of link will admit of . We will now proceed to investigate the various forms of link- motion in general use ; and in doing so ...
Σελίδα 124
... link , and the motion of this point must be at right angles , or approximately at right angles , to the direction of motion of the valve- spindle . PROBLEM XVI . Given the throws of the forward and 124 DESIGNING VALVE GEARING .
... link , and the motion of this point must be at right angles , or approximately at right angles , to the direction of motion of the valve- spindle . PROBLEM XVI . Given the throws of the forward and 124 DESIGNING VALVE GEARING .
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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.