| 摘要 |
PROBLEM TO BE SOLVED: To provide a heater piping for an engine which can increase the warming-up performance of air-conditioning of an automobile, and also, can ensure the reliability in the structure. SOLUTION: (1) This heater piping 5 is used for the engine having an air injection, and air injection piping 15 and the heater piping 5 are provided in parallel at an exhaust gas pulsing section 15 of air injection piping 11. (2) The exhaust gas pulsing section 15 of the air injection piping 11 is the section of the piping from a lead valve 14 to an exhaust manifold 12 of the air injection piping. COPYRIGHT: (C)2006,JPO&NCIPI
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