一种高压共轨系统低压回油块结构
By installing sensors on the return oil block of the high-pressure common rail system, the problem of insufficient monitoring of the return oil status of the injectors and high-pressure pumps was solved, enabling accurate monitoring of return oil flow and temperature, and improving the accuracy of fault location and system management efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NORTH ENGINE RES INST
- Filing Date
- 2023-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
The existing high-pressure common rail system lacks monitoring of the return oil status of the injectors and high-pressure pump, making it impossible to effectively predict or locate performance degradation and malfunctions, leading to deterioration of engine performance.
Temperature and pressure sensors are installed on the return oil block. By dividing the inside of the return oil block into multiple fuel volume chambers and installing sensors in each volume chamber, the return oil status of the high-pressure pump and injector can be monitored and fault location can be achieved.
It enables precise monitoring of the return oil flow and temperature of the high-pressure pump and injector, improves the accuracy of fault location and the level of system performance management, and simplifies sensor installation and structure.
Smart Images
Figure CN117780535B_ABST