RU2244847C1 - Internal combustion engine air supply system - Google Patents

Abstract

FIELD: mechanical engineering; automotive industry.

SUBSTANCE: proposed air supply system of internal combustion engine has air cleaner with air intake and air duct connecting cleaner with engine. Hole made in air duct is connected by hose with branch pipe of resonating chamber. Insert in form of pipe projecting into resonating chamber is installed in branch pipe of resonating chamber. Insert is installed for changing value of its projecting.

EFFECT: reduction intake noise to required value.

2 cl, 3 dwg

Description

The invention relates to mechanical engineering, in particular, to air supply systems of an internal combustion engine.

A known air supply system of an internal combustion engine comprising an air filter with an air intake device and an air duct connecting the air filter to the engine [1].

The disadvantage of this scheme is the inability to reduce intake noise to the required standards.

The technical result achieved by the claimed solution is to reduce intake noise to the desired value.

This result is achieved by the fact that in the claimed design of the air supply system of an internal combustion engine containing an air filter with an air intake device and an air duct connecting the air filter to the engine, a hole is made in the air duct connected by a hose to the nozzle of the resonator chamber, and an insert is installed in the nozzle of the resonator chamber in the form of a pipe protruding inside the resonator chamber. In addition, the insert is installed with the possibility of changing the magnitude of its protrusion.

The claimed technical solution is illustrated by drawings, where:

Figure 1 is a General view of the air supply system of an internal combustion engine.

Figure 2 - sectional view of the connection of the duct with the resonator chamber.

Figure 3 is an enlarged section of the connection of the resonator chamber with the hose.

The air supply system of the internal combustion engine contains an air filter 1 with an intake device 2, an air duct 3 connecting the air filter 1 to the engine 4, a resonator chamber 5 with an insert 6 connected through a pipe 7, a hose 8 with an opening 9 in the air duct 3.

Air enters the engine 4 through the air intake device 2, the air filter 1 and the air duct 3. The main noise absorption is ensured by the design of the air filter and the geometric parameters of the air intake device 2. Individual noise frequencies exceeding the permissible values are absorbed by the resonator chamber 5 connected to the hole 9 in the duct 3 through the hose 8 and pipe 7. Moreover, the resonator chamber is tuned to the corresponding resonant frequency of a particular engine by selecting size A ystupaniya insert 6 inside the resonator chamber.

The claimed technical solution allows the use of a resonant chamber of a single design for different types of engines and layouts of air supply systems, changing only the size A of the protrusion of the insert 6.

The air supply system of the vehicles has passed certification tests and will be used at OAO GAZ for Volga, Gazelle and Sobol cars.

Sourse of information

1. Catalog of parts and assembly units of Volga GAZ-3110 cars. - M .: Wheel, 2000, p. 92 - prototype.

Claims (2)

1. The air supply system of the internal combustion engine, comprising an air filter with an air intake device and an air duct connecting the air filter to the engine, characterized in that a hole is made in the air duct connected by a hose to the pipe of the resonator chamber, and an insert in the form of a pipe is installed in the pipe of the resonator chamber, protruding inwardly of the resonator chamber. 2. The system according to claim 1, characterized in that the insert is installed with the possibility of changing the magnitude of its protrusion.

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