Application Of Carburettors
1) Agricultural machinery: Such as self-propelled diesel sprayers, orchard sprayers, etc. Due to the harsh working environment and high requirements for fuel system reliability, some models still use carburetor fuel supply systems, which is especially common on small, low-power engines.
2) Garden and small power equipment: including lawn mowers, chain saws, tampers, generators, etc. These equipment are usually single-cylinder, low-speed, and intermittent operations. The carburetor can meet their basic needs and is easy to maintain.
3) Some motorcycles and scooters: Especially in developing countries or specific markets, some economical, retro or entry-level motorcycles still use carburetors. Their mechanical structures are simple and have low fuel quality requirements, making them suitable for areas with imperfect infrastructure.
4) Yachts and outboards: Due to the humid environment and infrequent use of some small marine engines, the carburetor system still has advantages in terms of moisture resistance and ease of maintenance.
5) Classic Cars and Collectible Cars: In the field of restoration and collection of vintage cars or motorcycles, in order to maintain their original appearance, the original carburetor system will continue to be used.
Application of garden machine carburettors
Carburetors are widely used in portable garden machinery using two-stroke or four-stroke gasoline engines and are the core component of their power systems. Main applications include:
Lawn Mower/Lawn Mower: Used for lawn mowing, the carburetor ensures stable engine operation under different loads.
Brush cutter/hedge trimmer: Used for trimming shrubs and weeds. The carburetor needs to adapt to frequent start-stop and tilt operations.
Chainsaw/High Branch Saw: Used for felling and pruning branches. The carburetor still needs to ensure smooth oil supply when working vertically or at a large angle.
Sprayer/High-Pressure Sprayer: Partially powered sprayers rely on a gasoline engine, powered by a carburetor.
Application of motorcycle carburettors
Mixing air and fuel: The carburetor uses the vacuum suction generated when the engine is working to suck the gasoline out of the float chamber, mix it with the incoming air and atomize it at the throat, forming a flammable mixture that supplies the engine with combustion work.
Automatically adjust the mixture concentration according to working conditions: The carburetor has a variety of built-in devices that can automatically adapt to different operating conditions of the engine:
Cold start: Limit the intake air volume through the choke, providing an extremely rich mixture to ensure smooth ignition of the engine at low temperatures.
Idle speed operation: Through the idle speed metering hole, a small amount of mixed gas with a high concentration is delivered to keep the engine from stalling at the lowest stable speed.
Medium load: The main fuel supply device provides economical mixture according to the throttle opening to meet daily cruising needs.
Full load/acceleration: When the throttle is suddenly opened wide, the accelerator device will inject additional fuel to make up for the lack of main fuel supply, prevent the mixture from being too thin and cause power interruption, and ensure rapid power response.
Application of outboard engine carburettors
The carburetor plays a vital role in outboard motors (also known as outboard motors). Its core function is to provide a stable and efficient combustion mixture for the engine, which directly affects power output, fuel economy and operational reliability.
Precise mixing of oil and gas: The carburetor automatically mixes gasoline and air in the optimal proportion according to the different working conditions of the outboard engine (such as starting, idling, accelerating, and full load) to form a combustible mixture. This process relies on the vacuum generated by the intake airflow to atomize the fuel from the float chamber through the nozzle, ensuring that the engine can obtain the required energy under various operating conditions. 12
Guarantee starting and idling stability: During cold start, the starting device of the carburetor will close the choke valve to form a rich mixture, solving the problem of poor gasoline volatility at low temperatures and making the engine easier to ignite. In the idling state, the idling device sucks out a small amount of fuel through the high vacuum environment behind the throttle to keep the engine running stably at low speeds and avoid stalling. 2
Improve power response and fuel efficiency: When the operator increases the throttle, the accelerator device will pump additional fuel to provide a "rich" mixture to meet the power demand. Modern high-performance carburetors (such as Yum Original) achieve linear power delivery, reduce vibration, and optimize fuel consumption while delivering more power, which is crucial for long-distance cruising or sailing with a heavy load.
Application of universal carburettors
Carburetors are still widely used in general machinery (referred to as "general machinery"), mainly due to their simple structure, low cost, easy maintenance and other advantages. They are especially suitable for areas that are cost-sensitive and whose technical requirements are not extremely stringent.
The main application areas of carburetors in general machinery.
Agricultural machinery: widely used in tractors, harvesters, water pumps, generators and other equipment. In these devices, the carburetor can provide a stable mixture to ensure smooth engine operation under different loads, helping to improve operating efficiency and reduce fuel consumption.
Construction and Engineering Equipment: Used for small concrete mixers, road rollers, air compressors, generators and other construction site equipment. Under harsh working conditions, the carburetor can provide good adaptability and stability to ensure continuous operation of the equipment.
Other general power equipment: including some models of forklifts, snowmobiles, motorcycles (especially low-end models) and emergency generator sets, etc.
