Fuel jetting valve dispatching structure of V-type two-cylinder engine

Abstract

The present invention provides a fuel injection valve arrangement structure for a V-type 2-cylinder engine. The cylinders are offset from each other in the direction of the crankshaft, and throttle bodies for 2 cylinders are arranged on one side of the engine in the direction of the crankshaft. A 2-way injection type fuel injection valve is provided. Installed in the intake manifold and inject fuel into the combustion chamber equipped with two intake holes arranged along the camshaft; relative to the engine centerline, the first combustion chamber is arranged on the side of the throttle body, and the second combustion chamber is arranged On the side opposite to the throttle body; the centerline of the outlet of the first intake manifold and the centerline of the outlet of the second intake manifold are respectively relative to the centerline of the first combustion chamber and the second combustion chamber to the engine centerline Side offset; the axis of the first fuel injection valve and the axis of the second fuel injection valve are respectively offset to the center line of the engine relative to the center line of the first combustion chamber and the second combustion chamber, relative to the first intake manifold The centerline of the outlet of the second intake manifold is offset to the side opposite to the centerline of the engine.

Description

technical field [0001] The present invention relates to an arrangement structure of an engine fuel injection valve suitable for improving engine performance regardless of the arrangement of engine components. Background technique [0002] Figure 4 It is a sectional view showing the fuel injection state of a conventional engine. An intake manifold 101 is attached to the cylinder head 100, a fuel injection valve 102 is attached to the intake manifold 101, and fuel 104 is injected from the fuel injection valve 102 to an intake passage 103 provided on the cylinder head 100. Inside. 105 is the opening of the intake passage 103 toward the fuel chamber 106 (i.e., the intake side valve seat), 107 is the intake valve for opening and closing the opening 105, 108 is the exhaust passage, and 111 is the direction of the exhaust passage 108. The opening of the fuel chamber 106 (that is, the valve seat on the exhaust side), 112 is an exhaust valve that opens and closes the opening 111 ....

AI Technical Summary

Problems solved by technology

However, such a configuration relationship does not conform to the characteristics of intake efficiency

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