| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel pressure control valve which shows excellent responsiveness and pressure governing performance in supplying fuel, and can automatically rest the pressure of the fuel to a specified value especially when it is temporarily lowered. SOLUTION: A partitioning body 7 having a valve part 8 is sandwiched between a diaphragm sandwiching flat portion 1A and a cover 10 on one side X of a valve main body 1. A fuel chamber 12 is formed on the side of the valve main body 1, while a spring chamber 11 is formed on the side of the cover 10. A fuel inflow passage 3 extended to a boosting part P, a fuel outflow passage extended to a consumption part, and a fuel return passage 5 having a valve seat are opened to the fuel chamber 12. A partitioning body 9 is sandwiched between a cover attaching flat portion 2A and a cover 14 on the other side Y of a devise main body 2. An accumulating chamber 16 is formed on the side of the device main body 2, while an atmospheric chamber 15 is formed on the side of the cover 14. The partitioning body 9 is energized to the side of the accumulation chamber 16 by means of a spring S. The accumulating chamber 16 is communicated with the fuel outflow passage through a pressure introduction passage 6.
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