carburetor for lada,How a two-stroke gasoline engine works
01 Jan

carburetor for lada,How a two-stroke gasoline engine works

  1. Gasoline engine

The composition of the gasoline saw generally adopts the crankcase preloaded sweeping two-stroke machine, all of which are air-cooled by the cylinder. Depending on function, a gasoline engine consists of four systems: mechanical, electrical, fuel supply and airflow.

1) The mechanical system includes cylinder, piston group, connecting rod, crankshaft, case, etc. Its function is to achieve gas sealing, withstand gas pressure and mechanical force, and ensure a certain movement relationship.

2) The electrical system includes magneto, ignition coil, spark plug, etc. Its function is to drive the magneto to generate electricity through the crankshaft to complete the timely high-voltage ignition of the cylinder.

3) The fuel supply system consists of fuel tank, fuel tank switch, fuel filter, fuel pipe and carburetor. Its function is to store and supply fuel oil and lubricating oil, and to mix fuel oil and air into combustible gas in an appropriate ratio.

4) Air flow system includes air filter, intake valve, exhaust muffler, etc. to provide combustion air, bring oil into the cylinder and reduce exhaust noise.

  1. The basic working principle of the power transmission crankshaft when starting

, the piston group is implicated by the crankshaft and the connecting rod. As the piston moves towards the top of the cylinder (up), negative pressure is created in the crankcase and air passes through the air filter and fuel on the carburetor. It is drawn into the crankcase through the intake valve. When the piston leaves the cylinder (down), the combustible gas in the crankcase is compressed. When the purge port is opened, the combustible gas is pressed into the cylinder through the purge port. When the piston moves up again, the combustible gas is compressed in the cylinder, and the pressure and temperature increase. The heating gas pressure is further increased by the ignition and combustion of the electrical appliance, and the gas expands. , pushes the piston down to drive the crankshaft to rotate and output power. Exhaust gases are first injected by pressure, then out of the cylinders by scavenging airflow, and out of the machine through a muffler.

When the crankshaft is idling, the clutch is disengaged, and the rotation of the crankshaft does not drive the drive shaft, which satisfies the need to stop the drive shaft without stopping. When the crankshaft speed rises above the clutch engagement speed, the clutch engages and the drive shaft rotates to drive the machine to work.

  1. Gasoline engine

Characteristics and Classification The term "gasoline engine" can generally refer to various types of powered machines. The energy sources for power generation are different. The power machine can be divided into electric motor, wind engine and hydraulic engine. As the engine of mobile power, the heat engine that converts thermal energy into mechanical energy is the most common. The "heat" of a heat engine is produced by the combustion of fuel, which takes place in the engine. Such an engine is called an internal combustion engine. Internal combustion engines also have piston and rotary impeller structures, and the common internal combustion engine is a reciprocating piston type. According to the fuel used, internal combustion engines can be divided into gasoline engines, diesel engines, kerosene engines, etc. A gasoline engine is an internal combustion engine that burns gasoline.