Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 48.
Σελίδα 5
... eccentric rod , is really so small as to be , in practice , imperceptible , and may therefore be disregarded throughout . If we suppose that the crank - shaft turns round , moving the centre of the sheave from B to F ; then , since the ...
... eccentric rod , is really so small as to be , in practice , imperceptible , and may therefore be disregarded throughout . If we suppose that the crank - shaft turns round , moving the centre of the sheave from B to F ; then , since the ...
Σελίδα 11
... 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 , and let CA represent B Y H F W Ум G Fig ...
... 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 , and let CA represent B Y H F W Ум G Fig ...
Σελίδα 31
... eccentric rod , is concerned , and which deviation , as we have already mentioned , is perfectly inappre- ciable in practice . Draw AB ( Fig . 9 ) to represent the amount the port is to be open at the given position of the crank , and ...
... eccentric rod , is concerned , and which deviation , as we have already mentioned , is perfectly inappre- ciable in practice . Draw AB ( Fig . 9 ) to represent the amount the port is to be open at the given position of the crank , and ...
Σελίδα 103
... eccentric rods , and the length of the link ( measured always from centre to centre of the pin - holes where the eccentric rods are attached ) , to find what motion will be trans- mitted to the valve for each position of the link ...
... eccentric rods , and the length of the link ( measured always from centre to centre of the pin - holes where the eccentric rods are attached ) , to find what motion will be trans- mitted to the valve for each position of the link ...
Σελίδα 104
... eccentric rod virtually into direct gear with the valve - spindle , and in these full 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 ...
... eccentric rod virtually into direct gear with the valve - spindle , and in these full 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 ...
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.