The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 580
ress it to atmospheric pressure. Often the cylinder is water-jacketed, since so great a range of compression involves a good deal ofheating; and sometimes there are two stages of compression, in suc-cessive cylinders. The inlet valves are commonly operated mechani-cally, to save suction vacuum. (n)… … Fig. 399. — The Edwards Air Pump. 566 SUNDRY STEAM APPLIANCES. [Chap. XI. efficiency is clearance — using this term in the same sense as with theengine cyhnder. Suppose, for example, that a dry-air pump has apressure range from 0.75 lb. to 15 lb., or a ratio of 1 to 20. Under thelaw pv = C, the…
Steam-engines · Steam-turbines
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
