An investigation of the use of discharge valves and an intake control for improving the performance of N.A.C.A. Roots type supercharger (1929)
NASA Technical Reports Server (NTRS) · leaf 3
control. The discharge valves reduce the impeller area subjected to the deliv- ery pressure, prevent the back flow of air that has been compressed in the delivery duct by blocking the discharge passage, and prevent the flow of air from one side of the supercharger case to the other side. The intake… … FiG. 1.—Diagrammatic cross section of a Roots type compressor . , , . . ,, , with an oscillating discbarge valve pression chamber through manually controlled intake ports before compression begins. If an intake control is not Used in conjunction with the discharge valves, a by-pass valve of normal…
NASA Technical Reports Server (NTRS)
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