| 摘要 |
PURPOSE: A piston structure is provided to reduce the amount of fuel stuck to an inner wall of a bowl as well as improve the atomization of fuel so as to improve the combustion efficiency, increase the engine output, and reduce exhaust gas. CONSTITUTION: A bowl(11) is formed at the upper center of a piston(10) and an injector is vertically installed at the direct upside of the bowl. A wire net(12) is formed at an inlet side of the bowl to make fuel to be firstly atomized by being passed through the wire net before fuel injected from an injector(3) is supplied into the bowl. The wire net is made by forming a net having an excellent heat resistance inside a ring and the ring is coupled to the inlet side of the bowl by welding.
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