Anti-icing breather for natural gas engines
By adding a heated water jacket to the outer wall of the breather of the natural gas engine, and using the high-temperature coolant in the cylinder head water jacket for heating, the problem of water vapor condensation and freezing is solved, achieving the anti-condensation and anti-icing effect of the breather, and improving the cooling and safety performance of the engine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINSHENGAN POWER TECH (SHANDONG) CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-21
AI Technical Summary
Natural gas engines are prone to water vapor condensation and freezing in low-temperature environments, which can lead to breather blockage, abnormal crankcase pressure, and potential safety hazards, affecting engine performance and safety.
A heating water jacket is added to the outer wall of the breather, which is heated by the high-temperature coolant in the engine cylinder head water jacket. The cooling cycle is formed through the water intake pipe and the water return pipe to prevent condensation and freezing.
It effectively prevents the breather from condensing and freezing, ensures normal release of crankcase pressure, avoids damage to seals and oil leakage, and improves engine performance and safety.
Smart Images

Figure CN224532798U_ABST