What engine is the 07 China Zunchi 2.0 manual transmission?

China Zunchi 2.0 manual transmission is a naturally aspirated engine. Naturally aspirated engine has low cost. The biggest difference between turbocharged engine and naturally aspirated engine is that there is one more turbine, but the cost is much higher, which can also be reflected in the final price of the car. Even small-displacement turbocharged models are more expensive than large-displacement naturally aspirated models, and in order to lower the price threshold, many automobile brands will keep naturally aspirated models.

Working principle of 07 Zhonghua Zunchi 2.0 manual transmission engine

China Zunchi 2.0 manual engine has no supercharger, that is to say, the air simply passes through the air filter-throttle valve (commonly known as "throttle valve")-intake manifold to reach the "cylinder", and the gasoline is directly injected into the intake manifold through the fuel injector (usually EFI).

Take a four-cylinder engine as an example, the piston does work with four strokes: downward (the intake valve is open, there is a pressure difference, and the mixture of air and fuel enters the cylinder under the action of the pressure difference)-upward (the intake valve is closed, the mixture is compressed, and the piston is ignited when it reaches the highest point)-downward (the mixture burns and expands, pushing the piston to do work and output power)-upward (the exhaust valve is opened, and the piston is exhausted).