The carburetor fuel tank used for storing a level of fuel (petrol or diesel), providing a path of 300-600 km. Capacity is it for 40-60 cars and trucks it to 150-200 (500-800 l for diesel). Is made of sheet steel, with walls for the absorption of shocks caused by fuel cornering and road bumps. Sometimes in the supply line, there is a filtering sieve.

The pipe is plugged by a special rain cap fitted with a valve (double air) tank that puts about atmosphere (vapor) against overpressure. Also, the container is provided with a connector connecting the feed pump and a return connection the surplus fuel. Inside is placed level sensor and at the bottom, a drain plug.

The fuel tank may have various shapes, usually parallel with the possibility of placement on the car – the driver side or under the seat. They fuel filters carburetor retain impurities in the fuel. It is used coarse filter for MAS decanting petrol tank mounted near, or fine filtration, filter pipe of the fuel pump and carburetor. – Filter filters of thin gasoline works as follows: gasoline enter through the junction in filter body, Plastic passes the exterior of the filter element paper micron, exits through the perforated tube central and returned the carburetor through the junction (impurities are retained in the filter). – Filter for diesel used MAC is in the form of a battery of two filters in series, of the same construction, differing only cup that the first filter is made of glass and serves as a glass decanter, and the second filter is sheet; the first filter is filtering role gross, although it has the same type of element filtrate, while the second serves for filtering fine.

Diesel power sent from the pump nozzle enters the filter cover passes through the filter element from the outside, then the central perforated lid tube and led to the fine filter, coarse dirt and water in the cup decanted the glass. The elements are joined together by bolts. In the fine filter to carburetor, the circuit is the same, but it retained impurities that passed the first filter, and from there is sent to the diesel injection pump. Some engines can use either a battery with two filters described above, or the combination of a type of filter, the coarse filter, a filter with the filter element of felt, closed in a metal body.

Fixing the filter on the motor is the base, and purging the valve. Diesel filter can be fitted with pump priming diaphragm, when the rotary injection pump is type Bosch. Fuel pumps at carburetor (pump power). Feed pump is designed to absorb fuel from the tank and send the pipes Contact carburetor. MAS used diaphragm pumps. Some cars use electric pumps submersible type mounted in the tank, or Non submersible, mounted pipe between the tank and filter, especially for cars with gasoline. And others involved pneumatic pumps. The pump diaphragm (membrane) the carburetor is kind ASPIRO-repulsive and consists of: body aperture, spring drive, rod and actuator (the lever, the return spring and lever priming manual) and cover that contains fuel priming pump chamber, mesh filtration and exhaust valves and intake.

The pump is operated by the eccentric on the camshaft. Operation: II attack when the eccentric lever may rod pull down the membrane, creating negative pressure in the combustion chamber and open the valve aspiration, absorbing the gasoline in the tank; after eccentric rotated, membrane and spring return lever initial position, the fuel discharge circuit by connecting pipe carburetor (MAS) or fuel filters. Arch membrane is dragged to a discharge pressure of 1.2-1.5 bar. For carburetor fuel pump with self-regulating membrane, thus reduced consumption in the pipeline from the pump discharge circuit creates an excess supply, which is transmitted in the chamber above the diaphragm, deformed it. Following stroke shrinks and the output is reduced. Is mounted on the engine block and is driven by the camshaft eccentric, or directly to end camshaft.

 

 
 

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