| 摘要 |
A temperature control system in an internal combustion engine includes a heating arrangement which channels a flow of temperature control fluid from an engine to and from an exhaust heating assembly (142) which is located adjacent to an exhaust manifold (140) in the engine. The exhaust heat assembly (142) permits the transfer of heat from the exhaust gases flowing in the exhaust manifold (140) to the temperature control fluid. The heated temperature control fluid is then directed back to the engine for efficient heating. In one embodiment, the temperature control fluid is directed through a heat exchanger in the engine oil pan (28) so as to maintain the temperature of the engine lubricating oil at or near its optimum operating temperature. In a second embodiment, the temperature control fluid is directed from the exhaust heat assembly to the intake manifold (130) so as to increase the temperature of the intake air prior to combustion. |
