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).
Air conditioning plant design and its unsuitability for private cars due to weight and expense.
| Identifier | ExFiles\Box 117\4\ scan0122 | |
| Date | 20th August 1941 | |
| Rm{William Robotham - Chief Engineer}/HAG.6/WT.20.8.41 - 2 - with the line of travel and, to prevent blowing in, they would have to be almost closed. With our type, the opening is approximately 90° to line of travel, and is not so much affected. Air conditioning was also discussed with them. We gathered that the experience they have had in air conditioning was limited. The type of plant that they have used is briefly as follows:- The air used, which is approximately 50% fresh and 50% exhausted air, is cleansed by passing through an oil bath air filter. It is then forced through a radiator into ducts and distributed round the coach at roof height. Outlets are placed at floor level. Electric radiator panels are fitted at floor level to be used as required. The reason for fitting these is that they have found that, when warm air is being blown into the coach, they are unable to keep the temperature at floor level as high as that at roof level without electric radiators. The radiator through which the air passes is thermostatically controlled, and is filled with either hot or cold water, as required. The cold water is drawn from an ice box. As an excess of water accumulates in the ice box, it is drained away through an overflow waste pipe. We have given this brief description from a point of view of interest, not with the idea that the system would be suitable for use on private cars, as from the photographs shown to us of the installation, it appeared both heavy and expensive. Rm{William Robotham - Chief Engineer}/HAG. | ||