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).
Extract from 'the Auto' magazine discussing a vaporiser embodying correct principles, developed by Mr. John Good.
| Identifier | ExFiles\Box 32\1\ Scan038 | |
| Date | 3rd October 1916 | |
| R.R. 235 a (400 T) (S C. 298. 15-2-16) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1646. COPY. 3rd October 1916. EFC/MP31016. Extract from the Auto, Sept.1st 1916. VAPORISER EMBODYING CORRECT PRINCIPLES. It is possible to design heaters and connections in a great variety of forms, and still conform to the principles developed as desirable and good. No doubt many do so conform but to make the situation clear and convincing, one form, recently developed by Mr. John Good, of Brooklyn, N.Y., will be described, because this seems peculiarly adapted to the purpose, is most familiar to the writer, and has reached the stage of having had successful road trials on a Ford car, after long and systematic study on the test block in competition with many others of great variety. This is presented as one good concrete example of the principles discussed, and entirely without prejudice to others known to the writer. The Good vaporiser is in the form of a Venturi tube of narrow angle, made of thin steel tubing, which weights little, is strong, and cleanable on both sides. Its length is made to conform to the exhaust header in which it is mounted, so as to be close to and preferably directly in front of the exhausts. This form of passage, by the well-known laws of such a tube, produces a high velocity at the throat with a correspondingly considerable pressure depression, and with the least possible overall loss of pressure between the ends. The high critical velocity promotes good heat transmission [Handwritten in left margin: 1006] | ||