| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bi-fuel internal combustion engine improving maintenance properties of a gas fuel injection valve while miniaturizing the bi-fuel internal combustion engine and improving degree of freedom in establishment of a shape of an intake pipe by securing a space at a lower side of the intake pipe. <P>SOLUTION: This bi-fuel internal combustion engine comprises: an engine body having a cylinder axis inclined toward one side; an intake pipe extending from a cylinder head 9 at an inclined upper face side of the engine body to the other side; liquid fuel injection valves 18-1-18-4 for injecting liquid fuel to the intake pipe; and gas fuel injection valves for injecting a gas fuel to the intake pipe. The liquid fuel injection valves are arranged in the vicinity of the cylinder head at one side of the intake pipe, and the gas fuel injection valves are arranged at an upper side exceeding the highest position of a cylinder head cover mounted on the cylinder head at one side of the liquid fuel injection valves. <P>COPYRIGHT: (C)2011,JPO&INPIT |
