Steam power plant auxiliaries and accessories; (1922)
Croft, Terrell, 1880- ed, Dufflin, Daniel John, 1911- ed · New York, [etc] McGraw-Hill book company, Inc · leaf 140
s a development ofthe open impeller. If a disk or plate were secured to eachside of an open impeller, a closed impeller would result. Theenclosing walls or covers are, in practice, cast solid with theimpeller vanes. These enclosing walls prevent the waterfrom escaping past the impeller blades. Also… … I- Side view I- Sectional Elevation Fig. 139.—Closed-Type Impeller. rially increased by these two devices. The running joint (Fig.135) is usually known as the sealing surface. The runningjoint is formed by the wearing rings. Note.—The Ideal Condition Would Be To Have A Tight FitBetween The Sealing…
Steam power plants · Pumping machinery
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