The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 435
ll be found in Steuerungenfiir Dampfmaschinen, by Leist. Only a few prominent points will benoted here. 418 VALVE GEARS AND GOVERNORS. [Chap. VIII. (d) Types of Valve.—Poppet valves are usually double-seated,and are so arranged as to be nearly balanced, only an annulus equal toor slightly exceeding… … Fig. 280. — Different Types of the Two-seated Valve. I. Valve with double inlet;II. Valve with single inlet; III. Bell or Cornish valve. requires a more complicated valve chamber, because the steam comingto it must be given access to both top and bottom, by means of pas-sages formed in the casting;…
Steam-engines · Steam-turbines
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