Partition plate oil-driven type engine oil-gas separation device

Abstract

The invention provides a partition plate oil-driven type engine oil-gas separation device. The partition plate oil-driven type engine oil-gas separation device comprises a pre-separation device arranged in a mounting groove of an air cylinder head cover, an initial separation device arranged in the mounting groove of the air cylinder head cover and an oil-driven type oil-gas separator arranged onthe exterior of the air cylinder head cover; an air inlet hole is formed in the mounting groove, the initial separation device is composed of at least two partition plates, an air vent hole is furtherformed in the air cylinder head cover, and an air outlet pipe connected with the oil-driven type oil-gas separator is arranged on the air vent hole; secondary acceleration can be carried out on oil-gas mixture by the partition plate oil-driven type engine oil-gas separation device, large oil drops and small oil drops are separated correspondingly and flow out through an oil return cavity, and theseparation efficiency is high; and in the adsorption of the small oil drops, a filter element do not have residue blocking due to the impact force of the secondary acceleration, therefore, the filterelement does not needed to be replaced at regular intervals, and the problem of replacing and maintenance at the intervals can be solved.

Description

technical field [0001] The invention belongs to the technical field of oil-gas separation, and in particular relates to an oil-gas separation device for a diaphragm oil-driven engine. Background technique [0002] The high-temperature gas generated by the engine during operation will escape into the crankcase through the gap between the piston group and the cylinder, causing blow-by. The components of blow-by gas are unburned fuel gas, water vapor and exhaust gas. Water vapor condenses in the engine oil to dilute the engine oil and reduce the performance of the engine oil; the sulfur dioxide in the exhaust gas is oxidized by the air to form sulfuric acid, which accelerates the oxidation and deterioration of the engine oil, which will cause corrosion and accelerated wear of engine parts; blow-by gas will also make the crankcase If the pressure is too high, the seal of the crankcase will be damaged, causing the oil to leak; it will accelerate the aging of the oil and reduce t...

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Problems solved by technology

From the above content, it can be found that the cylinder head cover oil-gas pre-separation device in the prior art is equipped with a rough filter orifice and a circuitous rectification structure, which can be used for oil-gas separation, but super large oil droplets (oil droplets with a diameter greater than 10um) are different from large oil droplets. Oil droplets (referring to oil droplets with a diameter of 2 to 10um) are easy to mix, and do not have the effect of oil droplet adsorption and flow diversion, which will cause the diameter of oil droplets entering the fine filter orifice plate to be still large. Diameter is 0.1~2um) have very big influence; The detour type rectification structure disclosed in the prior art can't solve the problem of secondary breakage (collision splash) of oil droplet that oil-gas mixture produces when high-speed collision, oil droplet flows through collision detour After the rectification structure, it cannot be adsorbed and recovered, and it will still flow to the outlet with the oil-gas mixture, and the separation efficiency is low

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