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.

CN224532798UActive Publication Date: 2026-07-21XINSHENGAN POWER TECH (SHANDONG) CO LTD
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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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a natural gas engine anti -icing respirator, including respirator body, the outer wall of respirator body is equipped with heating water jacket, and the water inlet end of heating water jacket is close to respirator air outlet and is provided, and the water inlet end of heating water jacket is connected with the water taking pipe, and the water taking pipe water taking mouth extends to the engine cylinder cover water jacket, and is located between cylinder cover water jacket water outlet and thermostat water inlet, and the water outlet end of heating water jacket is connected with the backwater pipe, and the backwater pipe is connected to the cooling water pump of engine. The utility model adds a layer of heating water jacket to the outer wall of original respirator, and the purpose that prevents condensation, prevents icing is reached through the mode of heating respirator, and the cooling circulation effect is realized to heating water jacket through the combination of water taking pipe, backwater pipe and cooling water pump, and the high temperature coolant in engine cylinder cover water jacket is taken to heat respirator, and the effective utilization of heat source is carried out, and the purpose that thermostat prevents condensation and prevents icing is fully reached.
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