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 of heat transfer to oil versus oil inlet temperature for various piston configurations and compression ratios.

Identifier  ExFiles\Box 148\1\  scan0165
Date  1st May 1939
  
PISTONS
HEAT TO THE OIL
S. 85
MAY. 1939
W.III N° 4 (BENTLEY CAMSHAFT INDN. SYSTEM)
① 200 COMP. RATIO = 6.5 : 1
② 330 " " = 7 : 1
③ 470 " " = 8 : 1
④ AEROLITE (FLOP TOP) COMP. RATIO = 6 : 1
⑤ R.R. SPLIT ( " ) " " = 6 : 1
@ 4000 R.P.M FULL THROTTLE
B.T.U's / MIN
OIL INLET °C
  
  


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