| 摘要 |
1320093 Hot gas engines; hot gas turbines; internal-combustion engines PHILIPS' GLDEILAMPENFABRIEKEN NV 19 April 1971 [6 March 1970] 23032/71 Headings F1B and F1G and F1S The invention relates to a device for converting heat energy into mechanical energy e.g. a hot gas engine, a hot gas turbine or an internal combustion engine. The device comprises a combustion chamber 11 which is connected by a duct 9 to a hydrogen container 6, a cooler 2 incorporated in a system of ducts 3 and a pump 4 for circulating a cooling medium. According to the invention the hydrogen container and part of the system of ducts are constructed for heat exchange between the hydrogen container and the cooling medium and the hydrogen container contains an alloy of elements A and D. The alloy has a composition defined by the formula AD n , and is capable of absorbing hydrogen gas at one combination of pressure and temperature and of releasing the absorbed hydrogen at another combination of pressure and temperature. In the formula A is calcium or one or more of the rare earth metals optionally combined with Th and/or Zr and/or Hf and D is Ni and/or Co. Optionally less than half the Ni and/or Co is replaced by Fe and/or Cu and n has a value in the range 3 to 8À5. Specification 1291976 is referred to. |
