| 摘要 |
1,210,516. Hot gas engines. PHILIPS GLOEILAMPENFABRIEKEN N. V. Sept. 29, 1967 [Oct.4, 1966], No.44398/67. Heading F1S. A hot gas engine comprises a combustion air supply duct which communicates through the heater 10 with an exhaust duct 17 which is arranged in heat exchange relationship with the air supply duct in a preheater 18 for the combustion air and means are provided for introducing a flow of substantially inert medium into the air supply duct 16. As shown the exhaust duct 17 and the air supply duct 16 communicate with each other through a duct 20 including a blower 21. In a modification the duct 20 and blower 21 are on the side of the air preheater 18 adjacent a blower 19. In another modification the blower 21 is omitted and the supply of combustion gases to the air supply duct is controlled by valves. In a further modification an injector is employed. Other modifications are described. |
