JPH01142571U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being a longitudinal cross-sectional view of the fuel injection device, and Figure 2 being an enlarged view of the area inside the circle drawn by the imaginary line in Figure 1. Figure 3 is a schematic diagram showing the intake system in a fuel injection device employing a single point injector, Figure 4 is the relationship between the inclination angle of the throttle bore passage and the amplitude of CO in the exhaust gas. A characteristic diagram showing the CO in 10 mode driving is shown in Figure 5.
FIG. 3 is a characteristic diagram showing concentration values in comparison with conventional ones. FIG. 6 is a longitudinal sectional view showing a conventional fuel injection device, and FIGS. 7 and 8 are sectional views showing enlarged examples of different parts of the circle drawn by the imaginary line in FIG. 6. be. 20... Throttle body, 24... Intake passage, 28... Throttle bore passage, 28a... Inner wall surface, 40... Injector, 50... Throttle valve, 52... Throttle shaft.

Claims (1)

[Claims for Utility Model Registration] The throttle body to which the injector is installed is laterally assembled to the intake manifold so that the intake passage is kept almost horizontal, and the throttle body is installed in the throttle bore passage following the intake passage. A type in which a throttle valve is incorporated, and the fuel taken into the intake manifold is atomized and distributed by injecting fuel from the injector toward the throttle shaft part of the throttle valve. In the fuel injection device, when the throttle body is assembled to the intake manifold, the intake passage remains substantially horizontal, and the inner wall surface of the throttle bore passage is lowered toward the intake manifold. Tilted fuel injector.