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).
Inadequate valve heat flow and torsional fractures in E.A.C. valve springs.
| Identifier | WestWitteringFiles\K\November1923\ Scan79 | |
| Date | 26th November 1923 | |
| R.R. 403A (40 H) (EL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary} EXPERIMENTAL REPORT. Expl. No. 9770 9060 REF: HBB/LU26.11.23. have been conducted from the non-seating part of the rim. These results seem to indicate that the path for the heat flow from the head to the valve seat is inadequate. E.A.C. VALVE SPRINGS. We have had three cases of breakage. In each case the fracture - which appeared purely torsional and not due to flaw - took place at the second coil from the bottom. Hs{Lord Ernest Hives - Chair}/ACL. | ||