Comparative performance of a Powerplus vane-type supercharger and an N.A.C.A. roots-type supercharger / Oscar W. Schey, and Herman H. Ellerbrock, Jr.

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Bibliographic Details
Main Author: Schey, Oscar W.
Corporate Author: United States. National Advisory Committee for Aeronautics
Other Authors: Ellerbrock, Herman H.
Format: Government Document Book
Language:English
Published: Washington D.C. : National Advisory Committee for Aeronautics, 1932.
Series:Technical note (United States. National Advisory Committee for Aeronautics) ; 426.
Subjects:

MARC

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245 1 0 |a Comparative performance of a Powerplus vane-type supercharger and an N.A.C.A. roots-type supercharger /  |c Oscar W. Schey, and Herman H. Ellerbrock, Jr. 
260 |a Washington D.C. :  |b National Advisory Committee for Aeronautics,  |c 1932. 
300 |a 14 pages, 10 unnumbered pages :  |b illustrations ;  |c 27 cm. 
336 |a text  |b txt  |2 rdacontent. 
337 |a unmediated  |b n  |2 rdamedia. 
338 |a volume  |b nc  |2 rdacarrier. 
490 1 |a National Advisory Committee for Aeronautics. Technical Note ;  |v no. 426. 
500 |a "July, 1932." 
500 |a NACA TN number 426. 
504 |a Includes bibliographical references. 
520 3 |a This report presents the results of a Power-plus supercharger and a comparison of its performance with the performance previously obtained with a N.A.C.A. Roots-type supercharger. 
520 3 |a The results of these tests show that at low pressure difference and at all speeds the power required by the Powerplus supercharger to compress a definite quantity of air per second is considerably higher than that required by the Roots. At pressure differences from 10 to 14 inches of mercury and at speeds over 2,000 r.p.m. the power requirements of the two superchargers are practically the same. At a pressure difference of 15 inches of mercury or greater and at a speed of 2.,500 r.p.m. or greater the performance of the Powerplus supercharger is slightly better than that of the Roots. Because the Powerplus supercharger cannot be operated at a speed greater than 3,000 r.p.m. as compared with 7,000 r.p.m. for the Roots, its capacity is approximately one-half that of the Roots for the same bulk. The Powerplus supercharger is more complicated and less reliabile than the Roots supercharger. 
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700 1 |a Ellerbrock, Herman H. 
710 1 |a United States.  |b National Advisory Committee for Aeronautics.  |0 http://id.loc.gov/authorities/names/n79060141  |1 http://isni.org/isni/0000000106642010. 
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