Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 39.
Σελίδα 12
... actual throw of the eccentric sheave , and its position with regard to the crank . The secondary valve circle is that described touching the primary valve circle at the point A , and having its diameter equal to , and in continuation of ...
... actual throw of the eccentric sheave , and its position with regard to the crank . The secondary valve circle is that described touching the primary valve circle at the point A , and having its diameter equal to , and in continuation of ...
Σελίδα 14
... position A C ; to do this it is only necessary with the point A as centre and with a radius equal to the inside lap ... real position being AX , for , as we have already explained , the assumed position of the crank is at the same ...
... position A C ; to do this it is only necessary with the point A as centre and with a radius equal to the inside lap ... real position being AX , for , as we have already explained , the assumed position of the crank is at the same ...
Σελίδα 15
... position of the crank we mean , in all cases , its assumed position , unless in any particular case we distinctly state that it is its real position to which we are alluding . Con- tinuing therefore our investigation of the valve ...
... position of the crank we mean , in all cases , its assumed position , unless in any particular case we distinctly state that it is its real position to which we are alluding . Con- tinuing therefore our investigation of the valve ...
Σελίδα 16
... position according as the original position of the assumed centre line of the crank , before the stroke commences , is at the dead point on the right or left of the centre line BG ; for instance , if the real position of the crank ...
... position according as the original position of the assumed centre line of the crank , before the stroke commences , is at the dead point on the right or left of the centre line BG ; for instance , if the real position of the crank ...
Σελίδα 20
... valve circles , represents the ( as- sumed ) position of the crank at the moment the steam is cut off , the real position of the crank being , at that moment , at the same angular distance from. 20 DESIGNING VALVE GEARING .
... valve circles , represents the ( as- sumed ) position of the crank at the moment the steam is cut off , the real position of the crank being , at that moment , at the same angular distance from. 20 DESIGNING VALVE GEARING .
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.