Diesel generator crankcase knowledge

(1) The one-way valve type connection crankcase and the intake manifold piping connected to a one-way valve to prevent oil sucked out of the crankcase, apply to vehicles with gasoline, EQ6100Q, Japan's Mitsubishi Pajero (Cheetah) car engine and so on. Check valve gasoline crankcase ventilation device. The valve chamber housing is provided with a small air filter, with the outlet pipe connected between the crankcase and the intake manifold is equipped with a unidirectional valve, and into the connecting tube into the trachea prior.

When the operation of the engine, the crankcase vapors by the trachea, the check valve is sucked into the cylinder, small air filter and fresh air through the valve chamber cover into the crankcase. The role of the check valve is to prevent too large a degree of vacuum of the engine at low speed low load intake pipe to suck out the oil from the crankcase. The crankcase ventilation unidirectional valve, is composed mainly by the valve, the valve body, the valve seat and the spring. Engine during idling to a degree of vacuum in intake pipe, the check valve being sucked on the seat, the crankcase exhaust gas through valve orifice into the intake pipe; with the engine load is increased, the decline in the degree of vacuum of the intake manifold, the valve spring outwards under the force to open the top, when ventilation is gradually increased; engine heavy load when the valve is fully open, ventilation rate, and thus update the crankcase air.

(2) the general formula
Only with a rubber hose the crankcase intake pipe linking ventilation generally forced ventilation. This ventilation mode structure is relatively simple, just piping connections, in the middle do not need other components connected to apply to some small engines. The gasoline engine crankcase general formula forced ventilation device. The upper part of the air filter with the air intake hose, used to pass to the inlet valve chamber cover, tappet chamber cover a trachea through to the carburetor.
The work of the engine, the crankcase gases inhaled via a tracheotomy carburetor, filtration of fresh air from the air cleaner through the air intake hose, valve chamber cover added to the crankcase.

(3) multi-purpose
Connected not only a one-way valve in the pipe connecting the crankcase and the intake manifold, and is also connected to an oil separator, greatly reduce the consumption of oil, to ensure the stability of the engine under various conditions oil lubrication. Gasoline engine crankcase forced ventilation.
In the cylinder head before the hood installed crankcase ventilation intake air filter, the rear cover of the cylinder head cover Install crankcase ventilation outlet Filtration

(4) oil and gas separator
An oil separator connected to the pipe connecting the crankcase and the intake manifold, the suction from the crankcase oil, gas separation, so that the liquid of the oil flowing back into the crankcase, gaseous gas inhalation into the trachea, thus reducing oil consumption. The Steyr engine's oil and gas separator, which is installed in the front of the engine cylinder head.
Engine work, fleeing into the crankcase oil and gas via a line to enter the oil and gas separation, due to the volume of oil and gas separator plane was tilted, so the liquid oil along the slope, the return pipe flow back into the crankcase, gaseous air by connecting pipe into the inlet.

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