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A multi-chamber swirling noise reduction method for an internal combustion engine

An internal combustion engine, multi-chamber technology, applied in the direction of gas chambers, mufflers, mechanical equipment, etc., can solve the problems of causing engine power output, exhaust gas can not be quickly discharged, affecting engine power output, etc., to reduce resonance phenomenon, good noise reduction effect, uniform exhaust effect

Active Publication Date: 2018-11-23
广州三雅摩托车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Advantages: low noise, good low-speed torque; Disadvantages: exhaust gas cannot be discharged quickly at high speed, causing engine power output to be affected
Advantages: low noise, good low-speed torque; Disadvantages: Exhaust gas cannot be discharged quickly at high speed, affecting engine power output; volume: low
Advantages: Good torque performance at mid-range and tail speeds; Disadvantages: Loud noise and loud volume

Method used

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  • A multi-chamber swirling noise reduction method for an internal combustion engine
  • A multi-chamber swirling noise reduction method for an internal combustion engine
  • A multi-chamber swirling noise reduction method for an internal combustion engine

Examples

Experimental program
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Effect test

Embodiment 1

[0043] As shown in the accompanying drawings, a kind of internal combustion engine multi-chamber swirling noise reduction method of this patent, by sequentially setting the first partition 1, the second partition 2, and the third partition 3 inside the internal combustion engine muffler from the direction of the intake pipe 8, Divide the muffler from left to right into the second air chamber 4, the first air chamber 5, the fourth air chamber 6 and the third air chamber 7;

[0044]The gas from the internal combustion engine passes into the first air chamber 5 through the intake pipe 8, the part of the intake pipe 8 in the first air chamber 5 is the first air guide pipe 10, and the gas passes through a plurality of exhaust pipes arranged on the wall of the first air guide pipe 10. The air hole enters the first air chamber 5.

[0045] The first air chamber 5 and the second air chamber 4 are communicated through the second air duct 11, and the second air duct 11 is provided with a...

Embodiment 2

[0050] As shown in the accompanying drawings, a kind of internal combustion engine multi-chamber swirling noise reduction method of this patent, by sequentially setting the first partition 1, the second partition 2, and the third partition 3 inside the internal combustion engine muffler from the direction of the intake pipe 8, Divide the muffler from left to right into the second air chamber 4, the first air chamber 5, the fourth air chamber 6 and the third air chamber 7;

[0051] The gas from the internal combustion engine passes into the first air chamber 5 through the intake pipe 8, the part of the intake pipe 8 in the first air chamber 5 is the first air guide pipe 10, and the gas passes through a plurality of exhaust pipes arranged on the wall of the first air guide pipe 10. The air hole enters the first air chamber 5.

[0052] The first air chamber 5 and the second air chamber 4 are communicated through the second air duct 11, and the second air duct 11 is provided with ...

Embodiment 3

[0056] As shown in the accompanying drawings, a kind of internal combustion engine multi-chamber swirling noise reduction method of this patent, by sequentially setting the first partition 1, the second partition 2, and the third partition 3 inside the internal combustion engine muffler from the direction of the intake pipe 8, Divide the muffler from left to right into the second air chamber 4, the first air chamber 5, the fourth air chamber 6 and the third air chamber 7;

[0057] The gas from the internal combustion engine passes into the first air chamber 5 through the intake pipe 8, the part of the intake pipe 8 in the first air chamber 5 is the first air guide pipe 10, and the gas passes through a plurality of exhaust pipes arranged on the wall of the first air guide pipe 10. The air hole enters the first air chamber 5;

[0058] The gas in the first air chamber 5 enters the second air chamber 4 after being muffled and turned into the second air chamber 4 through a pluralit...

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Abstract

The invention discloses a multi-gas-chamber cyclone silencing method of an internal combustion engine. A silencer is divided into a second gas chamber, a first gas chamber, a fourth gas chamber and a third gas chamber from left to right; gas of the internal combustion engine enters the first gas chamber through multiple exhaust holes formed in the pipe wall of a first gas guide pipe; the gas of the first gas chamber enters the second air chamber after silencing and steering; then, the gas enters the third air chamber after changing the direction through a third gas guide pipe; the gas of the third gas chamber enters the fourth air chamber after silencing and steering; and the gas of the fourth gas chamber is exhausted out of a silencer of the internal combustion engine after changing the direction through exhaust holes formed in the pipe wall of a fifth gas guide pipe. The method changes the exhaust direction of the exhausted gas by many times, so that the resonance phenomenon is reduced, the acute pressure change of the gas is prevented, the exhaust is relatively uniform, and the gas return phenomenon is basically prevented; and the silencer is smaller in size, and reduces the size by above 1 / 3 compared with a traditional silencer.

Description

technical field [0001] The invention relates to a muffler technology for an internal combustion engine, in particular to a swirl muffler method with multiple air chambers for an internal combustion engine. Background technique [0002] The function of the exhaust pipe is to discharge the exhaust gas from the engine combustion chamber. Due to the working principle of the engine, the exhaust air waves of the engine are discharged in waves. If the diameter of the exhaust pipe is small, the exhaust gas Each wave of the wave will form a greater pressure inside the exhaust pipe. When this wave of air waves starts to discharge outwards in the exhaust pipe, it will form a negative pressure on the next wave of air waves, that is, everyone The so-called back pressure. The size of the back pressure determines the optimal exhaust area of ​​the engine. If the back pressure is greater, the air wave of the engine at low speed will be affected by the negative pressure of the previous air w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N1/08
CPCF01N1/006F01N1/082F01N1/084F01N1/089F01N2490/155
Inventor 贾保献房旭林
Owner 广州三雅摩托车有限公司