| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection measuring device, in which the influence on a pressure detection by a fuel jet is suppressed.SOLUTION: An injection nozzle 2 for injecting a fuel toward the center of an internal space 11 of a closed vessel 1, and a pressure sensor 5 for measuring a pressure change in the internal space 1 with a probe arranged in the vicinity of the wall face of the internal space 11 are arranged such that the magnitude of an angle &thetas; between the direction, which directs from the center G of the internal space 11 toward an injection port at the leading end of the injection nozzle 2 from the center G of the internal space 11, and the direction, which directs from the center G of the internal space 11 toward a probe at the leading end of the pressure sensor 5, is within the range of 135 ± 30 degrees (from 105 degrees to 165 degrees). |
