| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an injection valve for gaseous fuel by which the gaseous fuel can smoothly pass through the inside of a valve plunger, a pressure loss is reduced and a desired fuel injection flow rate can be obtained. <P>SOLUTION: In the injection valve for the gaseous fuel where vertical fuel holes 30 and 31 starting from the rear end surface of the valve plunger and finishing this side of a front end surface communicating with the inner part of a fuel inlet cylinder and having bottoms and a plurality of horizontal fuel holes 32 opening the vertical fuel holes 30 and 31 in a valve housing are provided in the valve plunger 10, conical rectifying protrusions 33 guiding the branched flow of the gaseous fuel going from the vertical fuel holes 30 and 31 toward the plurality of horizontal fuel holes 32 are formed at bottom surfaces of the vertical fuel holes 30 and 31 of the valve plunger 10. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
