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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 temperature delivery curves for a twin S.U. petrol pump with different fuels and delivery methods.

Identifier  ExFiles\Box 27a\2\  Scan274
Date  30th October 1933
  
Ram/No. M.D.5.
Temperature Delivery Curves taken from Twin S.U. Petrol Pump
Heat applied through steam pipes coiled round pump & filter
30-10-33

Y-AXIS: DELIVERY PINTS PER HOUR
X-AXIS: TEMPERATURE. °C

DATA TABLE:

ETHYL SPIRIT (USED)
Flow taken from Floats Sunk
°C: 13, Pints/Hr: 114
°C: 23, Pints/Hr: 112
°C: 30, Pints/Hr: 109
°C: 35, Pints/Hr: 108
°C: 40, Pints/Hr: 103
°C: 45, Pints/Hr: 107
°C: 47, Pints/Hr: 100
°C: 50, Pints/Hr: 97.5
°C: 55, Pints/Hr: 94.5

Flow taken through open feed pipes
°C: 13, Pints/Hr: 116.5
°C: 20, Pints/Hr: 116.4
°C: 25, Pints/Hr: 116.4
°C: 30, Pints/Hr: 116.0
°C: 35, Pints/Hr: 115.6
°C: 40, Pints/Hr: 115.2
°C: 45, Pints/Hr: 114.8
°C: 50, Pints/Hr: 114.0
°C: 55, Pints/Hr: 113.4

DTD 224 SPIRIT
Flow taken from Floats Sunk
°C: 15, Pints/Hr: 130
°C: 20, Pints/Hr: 133
°C: 25, Pints/Hr: 133
°C: 30, Pints/Hr: 133
°C: 35, Pints/Hr: 120
°C: 40, Pints/Hr: 118
°C: 45, Pints/Hr: 114.8
°C: 50, Pints/Hr: 112
°C: 55, Pints/Hr: 114.2

Flow taken through open feed pipes
°C: 15, Pints/Hr: 116
°C: 20, Pints/Hr: 116
°C: 25, Pints/Hr: 116
°C: 30, Pints/Hr: 112
°C: 35, Pints/Hr: 110
°C: 40, Pints/Hr: 108
°C: 45, Pints/Hr: 103
°C: 50, Pints/Hr: 102
°C: 55, Pints/Hr: 99

GRAPH ANNOTATIONS:
DELIVERY taken through Floats Chambers Floats Sunk
ETHYL SPIRIT.
D.T.D. 224.
DELIVERY taken through OPEN FEED PIPES
  
  


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