Carburetor. The theory work

Perhaps of any other details of the car is not placed as any kind of "fairy tales and stories about carburetors". Engines simply mixing fuel and air and control of fuel ratio coming into the engine at any time during the work. However, the manner in which this is done can be complex, especially in cars with the control of the composition of exhaust gases. Worth a bit to learn about the fundamentals of the supercar. Despite the perception, Engines do not suck fuel from the carburetor. All are fitted diffuser, which is a narrowing of the air holes supercar. When air passes through the narrow, it is recession pressure (vacuum). A small hole located at the site for the fuel. The atmospheric pressure acting on fuel squeezes it from the fuel cell reaches through the hole in the opening carburetor where fuel into intake manifold, and then in the engine cylinders. Engine requires fuel-air mixture variation in the composition of the different modes of its work when it cold, preheated working with the engine idling, in the area of medium speed and under heavy load. In carburetor several systems, which help it to work under different conditions. In addition to the systems described further, there are some details, such as the curve, to cut off the flow of fuel and crash jumps pressure, which are used for special applications. These hubs have been established for a variety of reasons, and their withdrawal could have a significant impact on the work of the engine.

Floating camera

The float supports constant level of fuel in fuel cell supercar. It works as follows. When the fuel level drops, the float falls, a needle valve and allows fuel to the floating camera. By maintaining the level of fuel in a ratio of the air/fuel ratio is kept more accurately. The performance level of float should be adjusted according to the manufacturer.

Air duct

The air dampers to create cold engine through enrichment fuel ratio. Air flap over air in the air and, consequently, the engine is more fuel, and the turnover idling reduced. Therefore, to control the throttle valves added the increase idle speed to raise the progreve engine. For the average car there is no need to change this system.

The idling

The idling supplies fuel to the engine at low speeds, where the main measuring system is not working. Levelling screws to change the ratio of the air/fuel in the engine idling (many cars to the control of the exhaust gas adjustment screws sealed plugs). Many mechanics believe that the regulation revises composition of the mixture for the entire range of speeds, but it is not.

LEP pump

LEP pump provides injection of additional fuel with a sharp opening the throttle valves to prevent the stoppage of the engine and interruptions in his work during a car. Looking inside neck agent and quickly moved traction control throttle valves, fuel injected to the exits accelerating pump.

Transition system

Transition system provides transitional regime between the engine and the work of the dispensing system. Many engines are channels or holes transitional next to the throttle plates dampers, which served to fuel their doors during the throttle opening, dampers.

The measuring system

The measuring system doziruet fuel to the engine when driving a car in the middle faster. It consists of the main fuel burnt, the main distributor and diffuser. The fuel jikler located in the channel between the fuel cell agent and the principal dispenser. The dispenser typically consists of pipes with small holes in the air. The atmosphere here is mixed with the fuel to form a pulverized fuel air "fog." The fuel jikler determines how much fuel will be mixed with a specified amount of air. Engineers use tuners main fuel jets of various sizes to calibrate carburetor with the engine under different conditions of work. By using distance larger enriched mixture. By contrast, the installation went smaller drain mixture. Engine operating at high altitudes, to be connected with smaller size compared with the same engine, but working at sea level.

Economiser

Engine need a rich fuel air mixture when operating under load than when he just worked in the cruise mode. Efficiencies system supplies additional fuel when the engine is running under load, and with full throttle opening flaps. The various brands of carburettors used different types of Efficiencies. The most common are econometers diaphragm type calibration rods, baipasnye jets or valve Efficiencies. Econometers orifice mounted on HOLLEY engines, and some engines FORD MOTORCRAFT. When the vacuum in the intake manifold pressure reaches a certain level, the valve opens, allowing additional fuel to the engine. Some models have two valves to ensure more accurate dosing. Efficiencies ball matches, according to the value of opening pressure, as measured in millimeters Hg. Art. In accordance with the regime may extracted valve Efficiencies. Engines are usually given a low vacuum should be equipped with econometers, offered for small values of the vacuum. Dosing rods moved inwards and outwards in size holes (usually in the main fuel jiklerh), in accordance with the vacuum intake manifold. When the engine is under load and the vacuum is reduced, the rods made of the fuel burnt to increase the fuel supply. Bypass jets Efficiencies have the same functions as surgical rods, except that they have their own jikler or valve Efficiencies. In view of all the foregoing, it becomes clear that housing is very important for the engine. When the engine of a small volume of air with great diffuser, the required vacuum and spraying fuel available only in the "top" speed range, if not met. Power reaction to the movement of the throttle valves, and the overall performance of the engine will be impaired. It is possible that the air is too small. The engine may work well at low and medium speed, but little flow and diffuzora pinholes reduce power at high speeds.