| 摘要 |
The present invention relates to a supply line structure which supplies high pressure fuel oil delivered from a fuel spray pump of a clean engine to a fuel spray valve. According to the present invention, a clean engine having a simple connection structure of a high pressure fuel oil supply line comprises: a first insertion hole (62) disposed adjacent to a fuel spray pump (10), and formed from an outside of a cylinder head (6) into the cylinder head (6); a second insertion hole (62a) drilled towards the fuel spray valve whose one end is connected to the first insertion hole (62); a body (102) fixated on an upper end of the fuel spray pump (10), and connected to a delivery hole of the fuel spray pump (10); a connection block (100) extended from a head unit (104) of the body (102) to be inserted into the first insertion hole (62) of the cylinder head (6), having a first insertion shaft (106) wherein a first supply passage (110) as a fuel oil passage connected to the delivery hole of the fuel spray pump (10) is formed; and a second insertion shaft (200) wherein an end thereof intersects with the first insertion shaft (106) of the connection block (100) to be connected to the first insertion shaft (106) and inserted into the second insertion hole (62a), and a second supply passage (202) connected to the first supply passage (110) of the connection block (100) to transport the fuel oil to the fuel spray valve formed therein. As there is no connection unit mechanically connecting a member playing a role of a passage of the fuel oil, the present invention reduces a cumulative tolerance and an assembling error during manufacturing process, and reduces assembling time. In addition, as the high pressure fuel line infiltrates into the cylinder head, an external structure of the engine is simplified. |
