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Air inlet system for naturally aspirated engine

A technology of engine and air intake pipe, applied in the field of air intake system of naturally aspirated engine, can solve the problem that the volume of the air intake pipe cannot be continuously variable, and achieve the effect of simple structure, good performance and reasonable design

Inactive Publication Date: 2015-05-06
苏皓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After searching the existing literature, it is found that the patent application number is 20142022823.6, and the patent technology named variable intake manifold for small displacement engines provides a two-stage variable exhaust pipe volume technology, but it cannot Continuously variable reality

Method used

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  • Air inlet system for naturally aspirated engine
  • Air inlet system for naturally aspirated engine

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Embodiment

[0012] Examples of the present invention are Figure 1 to Figure 2 As shown, the present invention comprises engine intake pipe 1, air filter 2, throttle valve 3, engine 4, engine exhaust pipe 5, catalytic package 6, muffler 7, first connecting pipe 8, adjustment cavity 9, moving plate 10, Spring 11, second connecting pipe 12, control valve 13, the air outlet of engine intake pipe 1 is connected with the air intake of engine 4, the air outlet of engine exhaust pipe 5 is connected with the exhaust passage of engine 4, air filter 2. The throttle valve 3 is sequentially arranged on the engine intake pipe 1, the catalytic package 6 and the muffler 7 are sequentially arranged on the engine exhaust pipe 5, the adjustment chamber 9 is a cuboid structure, the cross section of the moving plate 10 is rectangular, and the moving plate 10 Arranged in the adjustment chamber 9 and in sealing contact with the inner wall of the adjustment chamber 9, one end of the first connecting pipe 8 comm...

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Abstract

The invention discloses an air inlet system for a naturally aspirated engine and belongs to the technical field of internal combustion engines. The system comprises an air inlet pipe of the engine, the engine, an exhaust pipe of the engine, a connecting pipe, an adjusting cavity, a movable plate, a spring and a control valve, wherein the movable plate is arranged in the adjusting cavity and is in sealed contact with the inner wall of the adjusting cavity, the movable plate is connected with the right wall of the adjusting cavity through a spring, one end of the second connecting pipe is communicated with the left wall of the adjusting cavity, the other end of the second connecting pipe is communicated with the exhaust pipe, between a catalyzing bag and a silencer, of the engine, and the control valve is arranged on a first connecting pipe. The volume of the air inlet pipe is large when the engine operates at a low speed and small when the engine operates at a high speed, and in other words, the volume of the air inlet pipe can be adjusted automatically. The system is reasonable in design, simple in structure and optimal in design.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, in particular to a naturally aspirated engine air intake system capable of realizing the self-regulation of the volume of the intake pipe of the naturally aspirated engine. Background technique [0002] Present engines can be divided into naturally aspirated and supercharged, and supercharged can be divided into mechanical supercharging, turbocharging and the latest air wave supercharging. The naturally aspirated type does not have a supercharger, which means that the air simply passes through the air filter, throttle valve, and intake manifold to reach the cylinder, and gasoline is directly injected into the intake manifold through the fuel injector. Taking a four-cylinder engine as an example, a piston has four strokes for one work: down (the intake valve opens, there is a pressure difference, and the mixture of air and fuel enters the cylinder under the action of the pressu...

Claims

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Application Information

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IPC IPC(8): F02M35/10
Inventor 苏皓韦航
Owner 苏皓
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