| 摘要 |
PROBLEM TO BE SOLVED: To uniformly expand an ejection width, and to reduce a flow rate and noise. SOLUTION: Channels 14 and 15 are formed to an ejection side closing wall 11h along the central axis C of a nozzle 20. A plurality of ejection holes 11d are formed in rows in the ejection thickness direction T and at intervals in the width direction in each away to communicate with the channel 15 in the ejection side closing wall 11h. The ejection holes 11d installed at intervals in the ejection width direction W are arranged radially with the central axis C made a starting point. The inside diameter of each ejection hole 11d and the length of the channel are made approximately equal. In the ejection side closing wall 11h, the outer surface to be an ejection side tip surface 11b and the inner surface to be a channel closing surface 11c are made similar cross-sectional crest shapes. The channel lengths of the ejection holes 11 arranged radially are equalized. COPYRIGHT: (C)2004,JPO
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