| 摘要 |
<p>By forming fuel gas injection holes, which open and close with the movement of an intake valve rod, in an oval shape, by positioning the fuel gas injection holes within the range of movement of a projecting section disposed on the intake valve rod on the inner peripheral surface of a sleeve, with which the projecting section of the intake valve slidably engages, the injection time of a fuel gas injected in an intake passage is lengthened, thereby promoting the mixing of the fuel gas with air supplied to the intake passage, improving combustion efficiency in a combustion chamber, and improving the fuel consumption rate. This fuel gas supply device for a gas engine, which supplies fuel gas that flows in the axial direction on the outer circumference of the intake valve rod (4) to the intake passage (2) inside a cylinder head (1), is characterized by being provided with fuel gas injection holes (6a) that open and close with the movement of the projecting part (5) on the inner peripheral surface of the sleeve (6) with which the projecting part (5) slidably engages, said projecting part (5) being disposed on the intake valve rod (4), being larger than the outer diameter of the intake valve rod (4), and having a portion that is parallel to the same core as the intake valve rod. The fuel gas supply device for a gas engine is further characterized in that the fuel gas injection holes (6a) are formed in an oval shape, and position sections ranging from the top to bottom of oval openings within the range of movement of the projecting part (5).</p> |
