KR900018516A - Injector Fuel Injectors - Google Patents

Abstract

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Description

Injector Fuel Injectors

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

1 is a schematic cross-sectional view showing one embodiment of the fuel injection device of the injector according to the present invention, and FIG. 2 is a schematic cross-sectional view showing another embodiment of the fuel injection device of the injector according to the present invention.

Claims (10)

A fuel injection device for an injector, comprising: a slow fuel control unit for injecting fuel into the intake pipe at a relatively low speed according to a relatively low air flow rate intaked into the intake pipe; A main fuel control unit for injecting fuel into the engine at a relatively high speed is configured so that each of the slow fuel control unit and the main fuel control unit is connected to an air section of a pair of regulators. A fuel section is configured so that the regulator fuel section of the slow fuel control unit and the main fuel control unit have a common fuel passage, and the regulator fuel section of the slow fuel control unit is located downstream of the regulator fuel section of the main fuel control unit. Said device characterized in that it is arranged. According to claim 1, wherein the slow fuel measuring member disposed in the regulator fuel section of the slow fuel control unit for measuring the injection fuel amount of the main fuel measuring member disposed in the regulator fuel section of the main fuel control unit for measuring the injection fuel amount Said device positioned downstream. 3. The regulator fuel section of claim 2, wherein the regulator fuel section of the slow fuel control unit includes a slow bypass fuel passage for bypassing the slow fuel measuring member, and the regulator of the main fuel control unit. The fuel section includes a main bypass fuel passage for bypassing the main fuel measuring member, and each of the slow bypass fuel passage and the main bypass fuel passage adjusts an air-fuel ratio of a mixture. Said device, characterized in that for installing the adjusting means. 3. The apparatus as claimed in claim 2, wherein a fuel injection valve is arranged in a fuel injection port of the slow fuel control unit for discharging the fuel when the downstream fuel measuring member downstream pressure exceeds a predetermined predetermined pressure level. . 5. The fuel injection valve of claim 4, wherein the fuel injection valve comprises a nozzle chamber and a depressin chanber separated from each other by a diaphragm, and the low pressure adding valve is configured to receive negative pressure generated by a relatively low amount of air flow intake. And said valve member is attached to be secured to said diaphragm and configured to cooperate with said fuel injection port. 4. The apparatus as claimed in any one of claims 1 to 3, wherein the fuel pump and the fuel pressure regulating lever are connected to a fuel supply passage communicating with the fuel inlet of the regulator fuel section of the main fuel regulating unit. 7. The apparatus as claimed in claim 6, further comprising a bypass fuel passage for bypassing the main jet and an electromagnetic valve for opening and closing the bypass fuel passage. 4. The slow fuel control unit according to any one of claims 1 to 3, wherein the slow fuel control unit constitutes a first atmospheric pressure lever and a first atmospheric pressure lever separated from each other by a first diaphragm, wherein the first atmospheric pressure lever is downstream of the air valve. A downstream position of an air valve which can be opened and closed by a negative pressure actuator operated by a negative pressure actuator of a negative pressure, a first fuel pressure lever and a first fuel injection lever separated by a first diaphragm, and the first and A connection member connected to a second diaphragm and provided with a fuel supply valve capable of adjusting the opening degree of the fuel inlet of the first fuel lever, and a pilot jet disposed between the first fuel pressure lever and the first fuel injection lever (pilot jet) and the main fuel control unit in communication with the intake pipe in a closed fuel injection valve which is opened by a negative pressure introduced to the first low pressure chamber and disposed downstream of the pilot jet. Is a third atmospheric pressure lever and a second atmospheric pressure lever separated from each other by a third diaphragm, the second atmospheric pressure lever is a ventri in the intake pipe and a second fuel pressure lever separated from each other by a fourth diaphragm And a connecting member provided with a closed fuel injection valve connected to the second fuel dispensing chamber by the third and fourth diaphragms and capable of adjusting the opening degree of the fuel injection port of the second fuel injection chamber; And the main jet disposed between the second fuel pressure chamber and the second fuel injection chamber. The slow fuel control unit according to any one of claims 1 to 3, wherein the slow fuel control unit constitutes a second atmospheric pressure lever and a first atmospheric pressure lever separated from each other by a first diaphragm, wherein the first atmospheric pressure lever is downstream of an air valve. Air valve downstream position, which can be opened and closed by a negative pressure actuator operated by a negative pressure, a first fuel pressure lever and a first fuel injection lever separated from each other by a second diaphragm, and first and second diaphragms. A connection member connected to the first fuel injection chamber, the connecting member having a closed fuel injection valve capable of adjusting the opening degree of the fuel injection port of the first fuel injection chamber, and a pilot jet disposed in the first fuel pressure chamber and the first fuel injection chamber; The main fuel control unit comprises a second atmospheric pressure lever and a second atmospheric pressure lever separated from each other by a third diaphragm; 4th The second fuel pressure lever and the second fuel injection lever separated from each other by the ear rams, and the closed fuel injection valve connected to the fourth diaphragm and controlling the opening degree of the fuel injection port of the second fuel injection lever are mounted. And the connecting member is in communication with the main disposed between the second fuel pressure lever and the second fuel injection lever. 10. The fuel cell system of claim 9, further comprising: a first bypass fuel passage for bypassing the pilot jet, an solenoid valve capable of opening the first bypass fuel passage, a second bypass fuel passage for bypassing the main jet; And the solenoid valve configured to open and close the second bypass fuel passage. ※ Note: The disclosure is based on the initial application.