Observation of Fuel Injection
Visualization of high-speed phenomena is attracting attention in various industrial fields. In the face of environmental problems and seeking to save energy, the automobile industry is conducting significant research into fuel injection in engines.
Observations of fuel injection are required to determine how the fuel disperses after injection and how the concentration distribution fluctuates. In addition, research and development into fuel injection involves changing the shape of the injection nozzle and discharge pressure to derive the optimal conditions. High-speed imaging is essential for this research due to the high speed of the injected fuel.
Images of fuel injected from a nozzle were captured by a HyperVision HPV-2 High-Speed Video Camera. The images were captured at 200,000 frames per second.
Data extracted at 45 µs intervals from the start of injection clearly reveal the shape of the spreading fuel and the changes in the concentration distribution.
High-Speed Video Camera
The Shimadzu HyperVision HPV-X2 High-Speed Video Camera offers ultra-high-speed imaging at speeds up to 10 million frames per second. In FP mode it achieves 100,000 pixel high resolution. HPV-X2 takes up to 256 consecutive images at up to 5 Mio. frames per second and up to 128 frames at 10 Mio. fps. This is the optimal video camera for capturing the shape of spreading fuel and concentration distribution fluctuations after the fuel is injected at an extremely high speed.