Environment-friendly and energy-saving outboard engine carburetor

By installing an adjustment mechanism inside the carburetor throat, the problem of the carburetor's inability to precisely adjust the throat cross-section is solved, thereby improving the stability of fuel atomization and energy-saving performance, and adapting to the engine's power requirements at different speeds.

CN224396593UActive Publication Date: 2026-06-23FUDING LIFENG MECHANICAL PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUDING LIFENG MECHANICAL PARTS CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing carburetors cannot precisely adjust the throat cross-section to match the intake air volume according to the different engine speed requirements, resulting in unstable fuel atomization and affecting engine performance.

Method used

An adjustment mechanism is installed inside the carburetor throat, including a drive component and an adjustment component. Through components such as a linkage shaft, screw, movable column and adjustment disc, the size of the cross-section of the throat cavity is dynamically adjusted to ensure uniform mixing of fuel and air.

Benefits of technology

It enables precise adjustment of the throat cross-sectional size at different speeds, improving fuel atomization and combustion efficiency, reducing fuel consumption and pollutant emissions, and adapting to long-term use in complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to outboard motor carburetor technical field discloses an environmental protection and energy saving type outboard motor carburetor, including the carburetor body for mixing fuel oil and air, the inner chamber of carburetor body center place is provided with the throat pipe as the carburetor air inlet channel, the inner chamber fixed setting of throat pipe is used for adjusting the adjusting mechanism of throat pipe inner chamber cross section size, adjusting mechanism includes the drive assembly for driving adjustment and is used for adjusting the adjusting assembly of throat pipe inner chamber cross section size, through setting adjusting mechanism in the throat pipe, realized the dynamic regulation of throat pipe inner chamber cross section size. Six groups of adjusting disc that distribute along circumference symmetry under the linkage effect synchronous action, can evenly change throat pipe cross section, avoid local airflow disorder, ensure that fuel oil mixes evenly, reduce the waste of not fully combusting fuel oil, thereby reduce oil consumption and pollutant emission, improve environmental protection performance.
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