A pressure regulating system for fuel injection pumps
By adjusting the position of the copper plug head using the adjusting seat and spring, the problem of unstable fuel injection pump nozzle pressure was solved, achieving stable control and precise adjustment of fuel injection pump pressure.
CN119664509BActive Publication Date: 2025-11-21SUZHOU PAVLE FLUID TECH CO LTD
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Patent Information
- Application Number
- CN202411880264.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2044-12-19
AI Technical Summary
Technical Problem
现有的喷油泵喷油嘴压力不稳定，无法有效控制压力大小。
Method used
By adjusting the seat and spring, the position of the copper plug head in the receiving chamber is adjusted. The tension or compression of the spring is adjusted using external tools to change the oil pressure in the receiving chamber, thereby adjusting the pressure of the nozzle connecting pipe. This is combined with real-time monitoring and adjustment using a pressure sensor.
Benefits of technology
Stable control of the fuel injection pump pressure was achieved, ensuring constant pressure in the nozzle connection pipe and improving the pressure regulation accuracy and stability of the fuel injection pump.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application provides a kind of pressure regulating system of fuel injection pump, pressure regulating system includes nozzle connecting pipe, connecting cavity, solenoid valve, pump base, pump base is connected nozzle connecting pipe through connecting cavity above, solenoid valve is arranged in one side of connecting cavity, the center of pump base is equipped with cavity, cavity is also equipped with liquid inlet pipeline and liquid outlet pipeline below, the output end of cavity is communicated with a shunt passage, shunt passage flows out in two sections, the size of the force of tightening of adjusting seat is adjusted by external tool, so as to adjust spring stretch or compression, when adjusting seat is loosened, spring stretch, copper plug head is extruded to containing chamber, oil in containing chamber is extruded, so that the internal pressure of solenoid valve connected with upper portion becomes larger, finally nozzle connecting pipe pressure becomes larger, when tightening adjusting seat, spring compression, copper plug head is removed from containing chamber, the pressure of oil in containing chamber is reduced, so that the internal pressure of solenoid valve connected with upper portion becomes smaller, finally nozzle connecting pipe pressure becomes smaller.
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