KR940015259A - Displaceable fuel injection device and control method thereof - Google Patents

Abstract

An injector located in the intake pipe for injecting fuel into the cylinder of the internal combustion engine, an injector accommodating member for supporting the injector so that the distal end of the injector is displaceable; A displacement transfer member coupled to a rear end of the injector and coupled to a rail fixed to a body of the intake pipe, an actuator coupled to the other end of the displacement transfer member, and an actuator according to an operating condition of the engine. The present invention relates to a fuel injection of an internal combustion engine comprising a control means for outputting a control signal for driving and a control method thereof, wherein the injection angle of the fuel injection device can be adjusted according to the engine operating conditions, thereby accelerating responsiveness and atomization of fuel. Can improve.

Description

Displaceable fuel injection device and control method thereof

Since this is an open matter, no full text was included.

1 is a cross-sectional view of a fuel injection device of the present invention. 2 is an enlarged view of a portion A to show the coupling relationship of the fuel injection device of FIG. 6 is a flowchart showing a position control method of the fuel injection device according to the present invention.

Claims (9)

An injector located in the intake pipe for injecting fuel into the cylinder of the internal combustion engine, an injector accommodating member for supporting the injector so that the distal end of the injector is displaceable; A displacement transmission member coupled to a rear end of the injector and coupled to a rail fixed to a body of the intake pipe, an actuator coupled to the other end of the displacement transmission member, and an actuator according to an operating condition of the engine. A fuel injection device for an internal combustion engine, characterized by comprising control means for outputting a control signal for driving. According to claim 1, The injector receiving member is a fuel injection device of the internal combustion engine, characterized in that the flange portion of the outer end is fixed to the inner wall of the intake pipe, the inner end is formed with a screw structure for coupling with the injector. The fuel injection device of an internal combustion engine according to claim 1 or 2, wherein the injector housing member is made of a flexible material. The fuel injection device for an internal combustion engine according to claim 1, wherein the control means controls the driving voltage to be low when the engine is rotated at high rotation and high load, and the driving voltage is controlled to be high when the engine rotates at low rotation and low load. The fuel injection device for an internal combustion engine according to claim 1 or 4, wherein the actuator has a large displacement of the actuator flange when the driving voltage is low and a small displacement when the driving voltage is high. The fuel injection device of an internal combustion engine according to claim 1, wherein the injector is controlled such that the tip thereof faces the cylinder side as the engine is loaded at a high load. A position control method of a fuel injection device having a structure in which a distal end thereof is displaceable, the method comprising: inputting information on an engine speed and an engine load, and controlling the fuel injection device according to the engine speed and an engine load state. Determining a motor driving voltage according to the motor position determination map embedded in the position control device, and driving the motor according to the motor driving voltage to displace the position of the tip of the fuel injection device. How to control the position of the injector. 8. The method of claim 7, wherein the motor positioning map lowers the motor driving voltage at higher engine speeds and high loads. The position control of the fuel injection device according to claim 7 or 8, wherein the lower the motor driving voltage is, the larger the displacement of the motor flange is, and the larger the displacement of the motor flange is, the tip portion of the fuel injection device is directed toward the cylinder side. Way. ※ Note: The disclosure is based on the initial application.