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 oil consumption curves for an E.A.C. engine, comparing different piston ring configurations.

Identifier  ExFiles\Box 66\1\  scan0016
Date  13th March 1925
  
OIL CONSUMPTION CURVES FOR E.A.C. ENGINE
RUNNING 3/4 FULL LOAD
AVGE. OIL TEMP 60°C

PISTONS & RINGS USED FOR
STANDARD RING
STD. PISTON RINGS

L RING
STD. PISTON WITH 'L' SECTN RINGS

SCHEME EX. 280-I

Graph Data:
- Y-Axis: OIL CONSUMPTION PTS / HOUR (0, 1, 2, 3, 4)
- X-Axis: R.P.M. (1000, 1500, 2000, 2500, 2750)

Curve Labels:
- STD. PISTONS & RINGS / ENG. 6.E.A.C.II / I.E.A.C.II.
- EX. 280-I.
- 'L' SECTN RINGS STD. PISTONS.

Other Markings:
- Left Margin: X8040, 13/3/25
- Bottom Right: CLH
  
  


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