FIELD: engine building.
SUBSTANCE: sealing structure includes O-ring and thrust ring 21. Outer diameter of thrust ring is smaller than inner diameter of mounting section 81 of supply pipe. Inner diameter of thrust ring gradually increases from surface of pressure reception 23 to mounting surface 22 and exceeds outer diameter of fuel injection section 93 of fuel injection valve. In section of thrust ring edge angle formed between pressure receiving surface and inner peripheral surface is less than gap angle formed between pressure receiving surface and conical outer surface of conical section in fuel introduction section. Size of mounting surface 22 in thrust ring 21 is smaller than that of end surface 92.
EFFECT: invention can be used in the internal combustion engines fuel supply systems.
10 cl, 11 dwg
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