Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph comparing flow through E.83904 inlet valves, with and without regrinding lips, in an E.83906 head.

Identifier  ExFiles\Box 31\2\  Scan123
Date  29th August 1933 guessed
  
PHANTOM
CURVE II
FLOW THRU PORT
CU.FT/MIN.
COMPARISON OF E.83904 INLET VALVES (IN E.83906 HEAD)
WITH AND WITHOUT REGRINDING LIPS
(1) ----- VALVE WITH REGRINDING LIP
(2) ----- VALVE WITHOUT REGRINDING LIP
PRESSURE DIFFERENCE ACROSS VALVE - "Hg
  
  


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