Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 633
perated admission valves for oneset of nozzles. 620 Steam Engineering Spe«d regulation is affected by varying the number ofnozzles in flow, that is for light loads fewer nozzles are open,and a smaller volume of steam is admitted to the turbinewheel, but the steam that is admitted impinges the… … Fig. 2G0 ELECTRICALLY OPERATED VALVE •In addition to the method just described, of actuatingthe addmission valves by steam, the General Electric Com-pany, manufactures of the Curtis Turbine, have recentlyintroduced a system of hydraulicaly operated valves forspeed regulation. These valves are also…
