Intake manifold integrating oil-gas separation device with PCV, engine and automobile

Abstract

The invention discloses an intake manifold integrating an oil-gas separation device with a PCV. The intake manifold comprises an intake manifold body, the oil-gas separation device and a cover, wherein the cover is fixed on one side of a main pipeline of the intake manifold body, and an inner cavity of the cover is communicated with an inner cavity of the main pipeline; the oil-gas separation device is arranged in the inner cavity of the cover; the cover is provided with an intake pipe used for making an oil-gas mixture enter the oil-gas separation device, and an oil return pipe used for collecting engine oil; the PCV provided with an exhaust pipe is further fixed on the cover. The invention further discloses an engine provided with the intake manifold and an automobile provided with the intake manifold. By means of the intake manifold integrating the oil-gas separation device with the PCV, the number of connecting pipelines inside the engine is reduced, and the arrangement of components and parts inside the engine is more compact; meanwhile, the problem that the oil-gas separation is not obvious when the engine runs at a low load can be solved. The intake manifold integrating the oil-gas separation device with the PCV is applicable to engines of various vehicles and is further applicable to various automobiles.

Description

technical field [0001] The invention belongs to the technical field of motor vehicles, and relates to an engine oil-gas separation device and an intake manifold, in particular to an intake manifold integrating an oil-gas separation device and a PCV valve, a corresponding engine and an automobile. Background technique [0002] During the operation of the engine, some incompletely combusted mixture mixed with engine oil and water vapor will escape from the combustion chamber into the crankcase. If these exhaust gases cannot be discharged in time, the pressure in the crankcase will be too high, resulting in engine leakage. Oil, engine oil deterioration and other problems, thus affecting engine performance and polluting the environment. [0003] The crankcase ventilation system of the engine is equipped with an oil-air separation device for separating the oil-air mixture. In the prior art, the oil-gas separation device mainly has the following methods: [0004] ①External oil-g...

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Problems solved by technology

[0007] In order to solve the above deficiencies in the prior art, the present invention provides an intake manifold integrating an oil-gas separation device and a PCV valve, which reduces the connecting pipelines inside the engine, makes the arrangement of parts inside the engine more compact, and can Reduce the difficulty of engine room layout; at the same time, it can solve the problem that the oil-gas separation effect is not obvious when the engine is running at low load, and can ensure the best oil-gas separation effect;

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