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Air inlet sectioning device for internal combustion engine

A technology for internal combustion engines and intake pipes, applied in the field of intake systems, can solve problems such as reducing the service life of compressors, and achieve the effects of improving endurance, improving stability, and improving transient response speed

Active Publication Date: 2010-10-13
谢国华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The exhaust gas passes through the compressor, which not only needs the compressor to provide energy, but also reduces the service life of the compressor

Method used

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  • Air inlet sectioning device for internal combustion engine
  • Air inlet sectioning device for internal combustion engine
  • Air inlet sectioning device for internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , which is a segmented device for an intake port of an internal combustion engine, comprising one intake port 1-J, two intake pipes J1, J2; the outlet of the intake port 1-J is connected to the cylinder intake valve K1; The inlet of the intake pipe J1 is connected to the smoke exhaust pipe 20, and the inlet of the intake pipe J2 is connected to the air filter 10 (if the air is relatively clean, the intake pipe J2 can also be directly connected to the air); the intake duct 1-J is connected to two intake ducts There is one intake auxiliary control valve F1 between J1 and J2; the opening and closing of the intake auxiliary control valve F1 of the intake port 1-J corresponds to the phase of the gas distribution timing of the cylinder intake valve K1, so that The complete intake process of the intake channel 1-J is divided into two intake duration periods, and the corresponding intake channel 1-J is connected to the corresponding intake pipe during the two s...

Embodiment 2

[0041] Such as Image 6 , is an optimized air intake section device with 6 intake ports, including 6 intake ports 1-J, 2-J, 3-J, 4-J, 5-J, 6-J, 2 The intake pipes J1, J2; the internal combustion engine contains 6 intake valves; The air valve inlets K1, K2, K3, K4, K5, K6 are connected; the intake pipe J1 is connected with the air filter 10, and the intake pipe J2 is connected with the outlet 41 of the intercooler 40; 6 intake passages 1-J, Between 2-J, 3-J, 4-J, 5-J, 6-J and the 2 intake pipes J1, J2 are respectively provided with 2 intake auxiliary control valves F1, F2; 6 intake ducts 1- The opening and closing of the intake auxiliary control valves of J, 2-J, 3-J, 4-J, 5-J, and 6-J correspond to the timing phases of the intake valves connected to the 6 intake ports , so that the complete intake process of the six intake ports 1-J, 2-J, 3-J, 4-J, 5-J, and 6-J is divided into two intake durations, and the corresponding intake The air passage is connected with the correspon...

Embodiment 3

[0051] Such as Figure 11 , which is another optimized intake segment device with 6 intake ports, including 6 intake ports 1-J, 2-J, 3-J, 4-J, 5-J, 6-J, 2 Root intake pipe J1, J2, intercooler 40, centrifugal compressor 30; internal combustion engine contains 6 intake valves; 6 intake ports 1-J, 2-J, 3-J, 4-J, 5-J , 6-J are directly connected with the intake valve inlets K1, K2, K3, K4, K5, K6 of each single cylinder; the return hole 31 of the intake pipe J1 and the centrifugal compressor 30 (see the sectional view Figure 12 ), the intake pipe J2 is connected with the outlet 41 of the intercooler 40; the six intake passages 1-J, 2-J, 3-J, 4-J, 5-J, 6-J are connected with two intake pipes J1 There are two intake auxiliary control valves F1 and F2 respectively between the intake pipe J1 and J2; the flow control valve F10 is set at the part where the intake pipe J1 is connected to the return hole of the centrifugal compressor 30, and the flow rate is set between the intake pipe ...

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Abstract

The invention discloses an air inlet sectioning device for an internal combustion engine in the field of four-stroke internal combustion engines. The device comprises at least one air inlet passage and at least two air inlet pipes; an air inlet aid control valve is arranged between the air inlet passage and the air inlet pipes; and when the opening and closing of the air inlet aid control valve are timed, the air inlet process of the air inlet passage is divided into at least two air inlet durations, and the air inlet passage is sequentially communicated with the corresponding air inlet pipes in the divided air inlet durations respectively. When the air inlet sectioning device is applied to the four-stroke internal combustion engine, gases with different components and / or gases with different pressures can be sectioned and sequentially pass through the air inlet passage in different air inlet durations to enter a cylinder so as to reduce the discharge of the internal combustion engine and / or improve the transient response performance of a turbocharged engine.

Description

technical field [0001] The invention relates to a four-stroke internal combustion engine, in particular to an intake system of the four-stroke internal combustion engine. Background technique [0002] Since the advent of the internal combustion engine for more than 100 years, its technology has made great progress, especially as the emission regulations and fuel consumption regulations of various countries have become stricter year by year, the technology of the four-stroke internal combustion engine has achieved rapid development. External exhaust gas recirculation technology and homogeneous compression ignition technology are the main measures to achieve efficient and clean combustion of internal combustion engines; supercharging (including supercharging and intercooling, two-stage supercharging, sequential supercharging and other supercharging systems, the same below) technology is The power performance, fuel economy and emission of the internal combustion engine are all ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/108F02D9/16F02B29/04F01L1/34
CPCF02B29/0412F02M35/108
Inventor 谢国华
Owner 谢国华
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