Atomization Characteristics of Two-Stream Injector for 4-Valve Engines
920705
02/01/1992
- Event
- Content
- A fuel injector adapter which can divide the fuel spray into two streams and produce fine fuel atomization is being developed to improve fuel economy and transient performance in four-valve gasoline engines. The adapter has the shape of a pair of spectacles and is attached to the orifice outlet of the injector. The optimum shape of the adaptor is investigated by 3-D viscous flow analysis by FEM and experiment. A 17% improvement in transient performance over the conventional Hitachi injector is confirmed by engine tests in a passenger car.
- Pages
- 9
- Citation
- Okamoto, Y., Arai, N., Nakagawa, K., Kosuge, T. et al., "Atomization Characteristics of Two-Stream Injector for 4-Valve Engines," SAE Technical Paper 920705, 1992, https://doi.org/10.4271/920705.