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).
Full bore flooding tests of a Stromberg DC.42 carburetter.
| Identifier | ExFiles\Box 122\3\ scan0074 | |
| Date | 16th August 1938 | |
| 1032 To By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Da{Bernard Day - Chassis Design}/JNR.{Charles L. Jenner} c. to Da{Bernard Day - Chassis Design}/MeS. c. to Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe}19/JH.16.8.38. FULL BORE FLOODING OF STROMBERG CARB.DC.42. A.{Mr Adams} Standard 25/30 carb. fuel level set at .625" on a standard 25/30 4 port induction pipe. B. Standard Wraith carb. fuel level set at .750" on a Wraith 4 port induction pipe (2 pipes tested). ******** Readings for A were obtained with a set of low pressure petrol pumps mounted rigidly on the same level as the carburetter. Thus the rig was composed of one complete unit - carburetter, induction pipe and petrol pumps. Readings for B were obtained with high pressure pumps situated approximately 2' 0" below the carburetter to represent chassis conditions when the pumps are mounted in the frame. The port numbers quoted refer to induction pipe ports numbered from the front of the engine. Gradients referred to are road gradients. The tilt of the induction pipe being corrected for 1 1/2° engine tilt on the 25/30 and 2 1/2° on the Wraith. In all tests, except those for flooding of the carburetter under normal conditions, full bore flooding was induced by loading the float. | ||