| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the disadvantages of a conventional single-seat valve where a fluid fuel passage area is small and supply pressure is limited to be lower. SOLUTION: This high-speed open/closed valve device is open/closed at a high speed for supplying fluid. It has a valve portion consisting of a pair of upper and lower valve elements 3, 4 and 13, 14 connected to each other. A valve seat body 1 has a fluid inlet 5 between the two upper and lower valve elements 3, 4 and 13, 14 for serving the pair of valve elements. The valve elements have inner valves 3, 13 and valve seats 4, 14 facing each other. The inner valves 3, 13 are joined to each other to form inner valve portions. A high-speed energizing machine 10 gives high-speed translational motion to the inner valve portion 3, 13 in such a manner as to be a predetermined distance apart from a closed position. Parts of the open/closed valve device including the valve portions, the valve elements, the inner valves and valve seats are machined and assembled in a well precise manner. COPYRIGHT: (C)2007,JPO&INPIT
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