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Application of crankcase vent hose

In the engine work, there is always a part of the combustible mixture and exhaust gas through the piston ring to the crankcase vent hose, the gasoline inside the crankcase to condense the oil will dilute, performance deterioration. Exhaust gas containing water vapor and sulfur dioxide, water vapor condensation in the oil to form foam, damage to oil supply, this phenomenon is particularly serious in the winter; sulfur dioxide water to produce sulfurous acid, sulfurous acid encountered in the air to produce sulfuric acid, these acidic substances The emergence of oil not only metamorphic, but also make parts subject to corrosion. As the combustible mixture and exhaust gas to the crankcase, the crankcase vent hose pressure will increase, the oil from the crankshaft oil seal, crankcase liner, etc. seepage and loss. The loss of oil vapor to the atmosphere will increase the engine of atmospheric pollution. Engine crankcase ventilation device can be avoided or mitigate the above phenomenon, therefore, the engine crankcase vent hose ventilation role is:

1. To prevent oil deterioration:
2. To prevent crankshaft oil seal, crankcase liner leakage;
3. To prevent all kinds of oil vapor pollution of the atmosphere.

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crankcase vent hose bmw

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