INJECTION MEASURING DEVICE

• Main Authors: KAMAKO TAKASHI, YAMAGUCHI TERUO, WATANABE TAKEO, SANO MOTOHIRO, WATABE KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 04.04.2016
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MECHANICAL ENGINEERING; PHYSICS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TESTING; WEAPONS

PROBLEM TO BE SOLVED: To provide injection measuring device for measuring an injection by using a frequency of a natural vibration, thereby to calculate the frequency of the natural vibration more precisely.SOLUTION: An internal space 11 of a closed vessel 1 to be charged with a fuel is formed into a sphere shape, and an injection nozzle 2 for injecting the fuel into the internal space 11 and a pressure sensor 4 are arranged such that the leading end is positioned without any irregularity with respect to the ball-shaped spherical surface of the internal space 11. The injection quantity of the fuel is calculated by the sound velocity in the fuel from the peak frequency of a pressure vibration to occur in accordance with the fuel injection detected by the pressure sensor 4, and the pressure rise of the fuel detected by the pressure sensor 4.SELECTED DRAWING: Figure 2 【課題】固有振動の周波数を用いて噴射の計測を行う噴射計測装置において、固有振動の周波数をより精度良く算出する。【解決手段】密閉容器１の燃料を充填する内部空間１１を球形状とし、内部空間１１に燃料を噴射するインジェクションノズル２と、圧力センサ４とを、先端が内部空間１１の球形状の球面に対して凹凸なく位置するように配置する。圧力センサ４で検出した燃料の噴射に伴い発生する圧力振動のピーク周波数からの燃料内の音速と、圧力センサ４で検出した燃料の圧力上昇とより燃料の噴射量を算出する。【選択図】図２