Designing Valve GearingE. & F.N. Spon, 1875 - 283 σελίδες |
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Αποτελέσματα 1 - 5 από τα 70.
Σελίδα 4
... circle ABC : and therefore , without drawing the perpendicular CA , we know that it would , if drawn , cut the line ... describe a circle , CBD , of which the point A will of course be the centre . Now as the throw of an eccentric sheave ...
... circle ABC : and therefore , without drawing the perpendicular CA , we know that it would , if drawn , cut the line ... describe a circle , CBD , of which the point A will of course be the centre . Now as the throw of an eccentric sheave ...
Σελίδα 6
... describe the circle A MFP which will cut the line AD in the point P , where the per- pendicular dropped from the point F upon the line AD also cuts it , and the line AP , representing the distance the valve has travelled from its ...
... describe the circle A MFP which will cut the line AD in the point P , where the per- pendicular dropped from the point F upon the line AD also cuts it , and the line AP , representing the distance the valve has travelled from its ...
Σελίδα 12
... describe a circle , which will be what is termed the primary valve circle , because AE represents the actual throw of the eccentric sheave , and its position with regard to the crank . The secondary valve circle is that described ...
... describe a circle , which will be what is termed the primary valve circle , because AE represents the actual throw of the eccentric sheave , and its position with regard to the crank . The secondary valve circle is that described ...
Σελίδα 14
... describe a circle in the place of the outside lap - circle , VQT . We have already shown that when the crank is at the commencement of its stroke the valve is open an amount equal to Q L , and we have assumed , for the purposes of our ...
... describe a circle in the place of the outside lap - circle , VQT . We have already shown that when the crank is at the commencement of its stroke the valve is open an amount equal to Q L , and we have assumed , for the purposes of our ...
Σελίδα 16
... describe the circle FT W , which will be what is termed the secondary valve - circle , and it will touch the primary valve - circle , E VL , at the point A. Now when the assumed centre line of the crank cuts the primary valve - circle ...
... describe the circle FT W , which will be what is termed the secondary valve - circle , and it will touch the primary valve - circle , E VL , at the point A. Now when the assumed centre line of the crank cuts the primary valve - circle ...
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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.