Wave resistance type crank case ventilation device

Abstract

The invention discloses a wave resistance type crank case ventilation device, and belongs to the technical field of direct injection spark ignition engines. The wave resistance type crank case ventilation device includes a crank case, an air cylinder body, an air cylinder cover, an oil atomizer, a high pressure oil rail, an oil tank, an oil delivery pipe, an intake pipe and an exhaust gas turbocharger; the side wall of the crank case is provided with an exhaust pipe which is connected with an inlet of an air pumping machine, an inner cavity of the air pumping machine is divided into a left cavity and a right cavity through a partition plate, and the left cavity and the right cavity are separately provided with a left-side impeller and a right-side impeller; the left-side impeller is fixedly connected with a first gear shaft which is rotated through a first bearing and is assembled at one end in a first through hole of the partition plate, and the right-side impeller is fixedly connected with a second gear shaft; and the second gear shaft is rotated through a second bearing and is assembled at the other end in the first through hole of the partition plate, sealing pieces are installed between the first gear shaft and the second gear shaft, and the left cavity and the right cavity are sealed and separated by the sealing pieces. According to the wave resistance type crank case ventilation device, the problems that carbon deposition is prone to generating at throttle valves and the inner wall of the intake pipe through a direct injection engine, the emptying ratio of waste gasin the crank case is low, and the shake of engine oil in the crank case is large can be solved.

Description

technical field [0001] The invention belongs to the technical field of in-cylinder direct injection engines, in particular to an anti-wave crankcase ventilation device. Background technique [0002] Nowadays, many automobile engines are in-cylinder direct-injection engines. Gasoline is directly injected into the cylinder for combustion. Although the power and torque of the engine at high speed are improved, it also brings some problems, such as the throttle valve and the wall of the intake pipe are easy to Carbon deposits are generated. The cause of carbon deposition is mainly caused by the crankcase ventilation system of the engine. The crankcase ventilation system introduces a small amount of exhaust gas leaked into the crankcase into the intake pipe and mixes with the newly entered air into the cylinder to participate in combustion. A small amount of oil vapor enters the intake pipe together with the above-mentioned exhaust gas and passes through the throttle valve. The ...

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Problems solved by technology

[0003] In order to solve the defects in the prior art that the direct injection engine produces carbon deposits on the throttle valve and the inner wall of the intake pipe, the exhaust gas discharge rate in the crankcase is low, and the engine oil in the crankcase sloshes greatly, the invention provides a wave-proof crankcase ventilation device

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