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Power curve comparison at constant detonation for different cylinder heads, using a 50/50 paraffin-shell fuel mixture.


Identifier  ExFiles\Box 111\2\  scan0282
Date  13th December 1937
  
-3-
III. DETONATION
A comparison of power curves run on a paraffin-shell mixture is shown on Fig.III.
HIGH POWER HEAD
FIG III
POWER COMPARISON AT CONSTANT DETONATION
FUEL - 50/50 SHELL Nᵒ1 / PARAFFIN
B.M.E.P.
MAIN ENGINE BHP
RPM
STANDARD BENTLEY
① Nᵒ 4 HEAD - FULLY INCLINED INLET VALVE (1.750" DIAM) CR {Mr Cra’ster / Mr Chichester} - 6.3
② Nᵒ 5 HEAD - SEMI-INCLINED INLET VALVE (1.750" DIAM) CR {Mr Cra’ster / Mr Chichester} - 6.3
VALVE TIMING - I.O. T.D.C. I.C. 30°L; E.O. 35°E. {Mr Elliott - Chief Engineer} E.C. T.D.C.
  
  
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).


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