Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 16.
Σελίδα 12
... assumed the eccentric sheave to be , relative to the crank , this latter would really revolve in the direction of ... assuming it to be in the direction AD , EVL being the valve - circle , the radius vector , AL , on the line , AD shows ...
... assumed the eccentric sheave to be , relative to the crank , this latter would really revolve in the direction of ... assuming it to be in the direction AD , EVL being the valve - circle , the radius vector , AL , on the line , AD shows ...
Σελίδα 14
... assumed , for the purposes of our diagram , that AD represents this position of the crank ; we have also shown that the valve has to move an amount equal to AQ before it commences to open the port , and in order , therefore , to find ...
... assumed , for the purposes of our diagram , that AD represents this position of the crank ; we have also shown that the valve has to move an amount equal to AQ before it commences to open the port , and in order , therefore , to find ...
Σελίδα 15
... 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 diagram ( Fig . 4 ) we have already shown that the valve ...
... 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 diagram ( Fig . 4 ) we have already shown that the valve ...
Σελίδα 16
... assumed centre line of the crank cuts the primary valve - circle it demonstrates that the valve itself is either on the right or left of its central position according as the original position of the assumed centre line of the crank ...
... assumed centre line of the crank cuts the primary valve - circle it demonstrates that the valve itself is either on the right or left of its central position according as the original position of the assumed centre line of the crank ...
Σελίδα 21
... ( assumed ) position of the crank , when A E represents the centre line of the eccentric sheave , this crank revolving in the direction indicated by the arrows , it being at the same time assumed that the sheave itself does not revolve ...
... ( assumed ) position of the crank , when A E represents the centre line of the eccentric sheave , this crank revolving in the direction indicated by the arrows , it being at the same time assumed that the sheave itself does not revolve ...
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.