Two-stroke air-guided engine air inlet system

Abstract

The invention discloses a two-stroke air-guided engine air inlet system. The system comprises a carburetor, wherein the carburetor is connected with an air inlet pipe, the carburetor comprises a carburetor body and an air inlet passage arranged on the carburetor body, the air inlet passage is divided into a separate carburetor pure air first passage, a carburetor pure air second passage and a carburetor combustible mixed gas passage through a rotary valve; the air inlet pipe is internally provided with an air inlet pipe pure air passage communicated with the carburetor pure air first passage and the carburetor pure air second passage and an air inlet pipe combustible mixed gas passage communicated with the carburetor combustible mixed gas passage. The two-stroke air-guided engine air inletsystem has the advantages that the appearance and connection mode of a common carburetor are provided, so that the appearance of the whole machine and a throttle operating mechanism do not need to bechanged, and compared with the whole machine adopting a conventional stratified scavenging engine air inlet system, the structure is simpler, and the reliability is higher.

Description

technical field [0001] The invention relates to the technical field of engine equipment, in particular to a two-stroke air-guided engine intake system. Background technique [0002] Two-stroke engines are widely used in many product fields such as agriculture, forestry, gardening, and households due to their remarkable advantages such as compact structure, small size, light weight, and fast operation speed. [0003] Conventional two-stroke engines have intake ports, exhaust ports, and scavenging ports on the cylinder block. These ports are opened or closed by the operation of the rotary valve. The fresh combustible mixture used to scavenge during the scavenging process It is easy to mix with the exhaust gas after combustion and discharge it without combustion or insufficient combustion, so the two-stroke engine not only has high fuel consumption, but also contains a large amount of harmful components (such as HC, NO, etc.) in the exhaust gas. X and CO), the impact on air po...

AI Technical Summary

Problems solved by technology

[0003] Conventional two-stroke engines have intake ports, exhaust ports, and scavenging ports on the cylinder block. These ports are opened or closed by the operation of the rotary valve. The fresh combustible mixture used to scavenge during the scavenging process It is easy to mix with the exhaust gas after combustion and discharge it without combustion or insufficient combustion, so the two-stroke engine not only has high fuel consumption, but also contains a large amount of harmful components (such as HC, NO, etc.) in the exhaust gas. X and CO), the impact on air pollution is significant, and it does not meet the existing emission regulations of various countries

[0004] The current stratified scavenging two-stroke gasoline engine has the characteristics of low emission and low fuel consumption, and is favored by consumers, but has the disadvantages of complex structure of the intake system, poor reliability and high price of the whole machine

Images