| 摘要 |
PURPOSE: A high pressure rail is provided with a reduced weight, and to manufacture a pressure reservoir at a low cost. CONSTITUTION: A high pressure rail is a high pressure fluid supply device of a common rail system for a large internal combustion engine. The high pressure fluid supply device comprises a pressure accumulator(7) which supplies high pressure fluid to a fluid jetting unit. The pressure accumulator comprises a center bore with an inner circumference. A radial bore(13) comprises a first side wall(18) and a second side wall(19). The width is vertically placed to the length of the pressure accumulator. The width is the distance between the first and second side walls.
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