Technical Realization Elements of Injector Through Cylinder Sealing Structure

Technical realization elements:

4. In view of the problems existing in the prior art, the present utility model provides a fuel injector through-cylinder sealing structure, the purpose is to solve the existing engine's fuel injector arrangement structure between the high-pressure fuel pipe nut and the fuel injector joint The thread gap leakage and other problems.

5. In order to achieve the above-mentioned purpose of the invention, the technical scheme of the present utility model is as follows:

6. A fuel injector penetrating cylinder sealing structure, comprising a fuel injector connector, a high-pressure fuel pipe nut, a high-pressure fuel pipe, and a cylinder head cover. The fuel injector connector penetrates the cylinder head cover wall and is connected to one end of the high-pressure fuel pipe, The high-pressure oil pipe nut is sleeved at the joint of the injector joint and the high-pressure oil pipe, the outer wall of the high-pressure oil pipe nut is connected with the cylinder head cover, and the outer wall of the injector joint is provided with an annular groove, the annular groove A sealing ring is arranged inside the high-pressure oil pipe nut, and an inner ring light hole adapted to the outer wall of the injector joint is arranged in the high-pressure oil pipe nut, and the outer wall of the front end of the injector joint is threadedly connected with the high-pressure oil pipe nut.

7. Preferably, the sealing ring is an o-ring. This arrangement can facilitate assembly and sealing.

8. Preferably, the inner ring aperture and the sealing ring have an interference fit. This possible design makes the sealing effect better and the assembly is simple.

9. The beneficial effects of the utility model:

10. The utility model provides a fuel injector through-cylinder sealing structure. The inner ring light hole and the sealing ring on the fuel injector joint play a sealing role together to prevent the oil and gas inside the cylinder head cover from penetrating through the high-pressure oil pipe nut and The thread gap between the injector joints leaks. The sealing structure is simple, easy to assemble, and high sealing reliability.

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