| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve whose valve member chokes a fluid passage certainly and also a fuel injection valve using such a solenoid valve, in which the sliding surfaces of the valve member and a piston member are precluded from eccentric wear even if members involve a processing tolerance or installing tolerance. SOLUTION: A gap 65 is formed between the peripheral wall of a valve member 31 of a solenoid valve 30 and the inside wall of a valve body 33. A balance piston 32 supports the valve member 31 slidably relative to the valve member 31. The balance piston 32 is provided with a spherical recess 32a positioned opposite a control pressure chamber 40, and this spherical surface of the recess 32a is slidable with a convex spherical surface of a sphere member 38. Even if members involve a processing tolerance or installing tolerance, eventual tolerance can be eliminated by allowing the balance piston 32 to tilt in sliding with respect to the sphere member 38.
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