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).
Indicator diagram plotting cylinder pressure against crank angle for a single-cylinder test.

Identifier  ExFiles\Box 134\2\  scan0034
Date  23th April 1957
  
SHEET 12
INDICATOR DIAGRAM No B14.
CYLINDER HEAD TO Ls C 4/23/57
TWIN INLET VALVES.
COMPRESSION RATIO = 6.13
ZENITH CARBURETTOR (36 m/m CHOKE)
OPEN EXHAUST
FUEL = No 1 SHELL
BAR = 732 m/m TEMP = 10°c
ENGINE SPEED = 3000 RPM.
B.M.E.P = 128.1 LBS/□"
BENTLEY SINGLE CYLINDER TESTS.
CYLINDER PRESSURE (LBS/SQ. IN.)
CRANK ANGLE.
T.D.C.
V 1756.
  
  


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