A turbocharger intelligent protector

Abstract

The invention relates to a turbo intelligent protector and a turbo intelligent protection method. The technical scheme includes that a lower tank body, a middle body and an upper cap form a lubricating oil storage tank, a support stretched downwards is arranged in the middle of the middle body, a gear pump is installed at the bottom of the support, the gear pump is connected onto a direct current motor on the upper side of the middle body through a coupler, an output end of the gear pump is connected with an oil channel in the middle body, and connected with a lubricating oil pipeline of a turbo through the oil channel, a trickling backflow check valve is arranged on the lubricating oil pipeline, and lubricating oil supplementing is achieved by enabling lubricating oil to flow back into the lower tank body through the trickling backflow check valve. The turbo intelligent protector is simple, and small and exquisite in structure, convenient to install, easy to refit, low in construction difficulty, and each to popularize in a large range, and only needs to be connected with a circuit and a lubricating oil circuit so as to achieve protection for the turbo.

Description

technical field [0001] The invention relates to a protection device for a turbocharger, in particular to an intelligent protector for a turbocharger. Background technique [0002] The turbocharger uses exhaust gas from the engine to drive the turbine, and the turbine drives the coaxial impeller. The impeller presses the air filtered by the air filter to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed is equal to the turbine speed. The speed is also increased synchronously, the impeller compresses more air into the cylinder, the air pressure and density increase can burn more fuel, and increase the output power of the engine. Therefore, turbocharging technology has been widely used. [0003] Taking large-scale transport vehicles as an example, turbochargers are generally installed now, and more than 90% of large-scale transport vehicles are non-water-cooled turbochargers. high expectation. [0004] 1. Since the supercharger ...

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Problems solved by technology

[0005] 2. After the engine is running at high speed, it cannot be turned off immediately, but must idle for 5 minutes. The reason is that when the engine is working, the supercharger oil is supplied for the lubrication and cooling of the supercharger rotor and bearings. After a sudden stop, the oil pressure is zero, and the oil If the lubrication is interrupted, the internal heat of the supercharger cannot be taken away by the engine oil. At this time, the turbo part of the supercharger conducts the heat to the bearing, and the temperature in the bearing support shell continues to rise, while the supercharger rotor is still rotating at a high speed under the action of inertia. , This will cause the supercharger rotor and bearing to be seized and damage the bearing and shaft. After the sudden flameout, the temperature of the exhaust pipe and the exhaust gas volute is very high, (above 600 degrees) and its heat will stay in the supercharger. Coking of the engine oil forms carbon deposits (the coking temperature of the engine oil is about 230 degrees), and when the carbon deposits accumulate more and more, the oil inlet will be blocked, resulting in lack of oil in the bushing, accelerating the wear of the turbine rotor and bearings, increasing resistance, heating the bearings, and a vicious cycle. Damaged supercharger

Its existing problems are: the entry of lubricating oil is realized through electromagnets, springs and pistons, its reliability is not good, it is prone to failure, and it cannot be widely used; in addition, it has not formed a product that can be directly installed, so that it can be modified more difficult work

[0007] In addition, take small transport vehicles and family cars equipped with turbochargers as examples: water-cooled superchargers are generally used. Although there is no problem of carbon deposition caused by excessive temperature of the volute after the vehicle is turned off, the turbo is still running after the vehicle is turned off. Under the action of inertia, it continues to do high-speed rotating motion, but at this time the lubrication system has lost pressure and stopped working, which causes the wear of the turbine, reduces the service life of the turbine, and increases the burden on the owner; Lubrication system, so there is also the problem of turbine wear at the initial stage of vehicle startup, resulting in a decrease in the service life of the turbine

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