Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 44.
Σελίδα 7
... direction of motion of the valve , the exact distance that the valve has tra- velled from its central position for that particular angular advance of the eccentric sheave ; and if the centre of the sheave is caused to advance beyond the ...
... direction of motion of the valve , the exact distance that the valve has tra- velled from its central position for that particular angular advance of the eccentric sheave ; and if the centre of the sheave is caused to advance beyond the ...
Σελίδα 8
... direction , that is , towards B ; for instance , if instead of causing the centre line , A B , of the sheave to advance about the point A to the position as shown at AF ( Fig . 2 ) , taking with it the valve circle , A MFP , of which it ...
... direction , that is , towards B ; for instance , if instead of causing the centre line , A B , of the sheave to advance about the point A to the position as shown at AF ( Fig . 2 ) , taking with it the valve circle , A MFP , of which it ...
Σελίδα 9
... direction AC ( Fig . 2 ) when the centre of the sheave is in the direction A B , then in order to advance the sheave through the angular distance B F , the crank must be advanced through an angular distance equal to BF ; and we have ...
... direction AC ( Fig . 2 ) when the centre of the sheave is in the direction A B , then in order to advance the sheave through the angular distance B F , the crank must be advanced through an angular distance equal to BF ; and we have ...
Σελίδα 10
... direction ; for instance , the crank , AC ( Fig . 3 ) , is supposed to advance through the angular distance CH , and we require to know the distance the valve is from its centre of motion for the position , HA , of the crank , and to ...
... direction ; for instance , the crank , AC ( Fig . 3 ) , is supposed to advance through the angular distance CH , and we require to know the distance the valve is from its centre of motion for the position , HA , of the crank , and to ...
Σελίδα 11
... direction of the travel of the end of the eccentric rod furthest from the sheave , and it is in this line that the point A , the centre of the crank- shaft , will lie . Draw BG at right angles to , and in- tersecting , CD in any point A ...
... direction of the travel of the end of the eccentric rod furthest from the sheave , and it is in this line that the point A , the centre of the crank- shaft , will lie . Draw BG at right angles to , and in- tersecting , CD in any point A ...
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.