A high-pressure direct-injection methanol fuel injector with a cooling flow channel
By designing a double-layer cooling channel and heat insulation bushing in the high-pressure direct injection methanol fuel injector, the problem of temperature rise during the transportation of the cooling medium along the channel is solved, achieving efficient targeted cooling and dynamic adjustment, and improving the working stability and adaptability of the injector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CSSC MARINE POWER
- Filing Date
- 2026-06-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-pressure direct injection methanol fuel injectors continuously absorb heat during the flow of the cooling medium, resulting in a high temperature when the medium reaches the nozzle area. This makes it difficult to effectively suppress methanol vaporization and nozzle coking, and the cooling structure is difficult to adjust flexibly according to engine operating conditions.
A high-pressure direct injection methanol fuel injector with a cooling channel was designed. It adopts a double-layer cooling channel structure and a heat insulation bushing. The cooling medium forms a targeted cooling channel through the first and second cooling channels. Combined with the heat insulation bushing and the pressure stabilizing ring, the low-temperature medium can reach the nozzle directly. It is equipped with a closed component to dynamically adjust the cooling intensity.
It effectively suppresses methanol fuel flashing and nozzle coking, improves the working stability and reliability of the injector under high heat load, adapts to the heat dissipation requirements of different working conditions, and balances energy efficiency and system stability.
Smart Images
Figure CN122407424A_ABST