What is a carburetor engine power system? This is a system designed for storing and supplying fuel, filtering air, preparing a fuel-air mixture and supplying it to the combustion engine of an internal combustion engine. The amount of this mixture depends on the specific mode of operation of the vehicle. In today's article, we would like to pay attention to carburetor cars, whose fuel is always gasoline.
The carburetor engine power system consists of the following parts:
- Fuel tank.
- Fuel lines.
- Filters for cleaning gasoline.
- Air filters.
- Carburetor.
The fuel tank is a bulk metal container. As a rule, cars are equipped with gas tanks of 40-60 liters. This device is installed in the rear of the machine, and a hole for refueling and supplying gasoline through the fuel lines departs from it. Liquid is poured through a special mouth. This is a small tube with a plastic and metal cover at the end. Some models of gas tanks have a special hole for draining fuel. It is located at the bottom of the tank. Such a hole is intended not at all to make it easier for a neighbor to steal gasoline, but to eliminate the accumulated debris, water and sediment. Since the fuel at our gas stations is of “ideal” quality, motorists use this cover very often.
The operation of the carburetor engine power system
Before gasoline enters the combustion chamber, it goes through several stages of cleaning in the fuel filter. As a rule, on modern cars, 1 or 2 of such tools are installed. The circuit diagram of the carburetor engine power system also includes many small parts. One of them is a float with a rheostat, which measures the level of gasoline remaining in the tank and displays information on the panel.
After gasoline has passed the purification stage, it goes further along the fuel line (it is located under the bottom) to the pump. This is one of the most important elements without which the power supply system of carburetor engines would simply not exist. He pumps gasoline on the fuel line, and when the fuel mixes with air, the finished mixture enters the engine chamber. The pump itself is mechanical and electronic. But since carburetor cars appeared much earlier than injection cars, only mechanical devices are installed on them. Such a pump includes the following elements:
- Body.
- Inlet and outlet valves.
- Strainer
- Spring-loaded diaphragm with drive mechanism.
Depending on the year of manufacture and make of the vehicle, the high-pressure fuel pump can be driven by an eccentric, which is located on the drive shaft of the second pump (oil), or an eccentric, located on the camshaft. In both cases, this part shakes the drive lever, which acts on the rod. As a result, the power supply system of carburetor engines pumps gasoline from the fuel lines to the combustion chamber.