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Bronco Muffler

Bronco Muffler in Denver, Welcome to Auto a full – service preventive maintenance and automotive repair center.

The Four Times:
A gasoline combustion engine works through cycles that can be divided into four times, namely:

1. ADMISSION
At this moment the piston is in the upper part (the highest point where the piston can reach is called top dead center PMS) and begins to lower the valves open and inject the combustible air mixture, the suction that creates the piston in its descent causes the entry of the mixture or fuel into the cylinder. While this phase lasts, the exhaust valve remains fully closed.

2. COMPRESSION
During this phase, the mixture is compressed, for which the piston rises from the lowest point (to the lowest point where the piston can reach is called bottom dead center) to the highest cylinder, while the crankshaft covers half turn. The valves remain closed and the gases that have filled the cylinder occupy a smaller space each time. The maximum compression value is reached when the piston is at the end of the climb stroke.

3. EXPANSION OR EXPLOSION
It begins when the piston is pushed down from the Top Dead Center (PMS) to the Bottom Dead Center (PMI), by the gases left from the combustion of the mixture. In this phase, the inertia of the engine is not the one that produces the work, but rather it is the explosion itself that impels the piston, whose movement is transformed into work that, finally, will end up moving the car.

 4. ESCAPE
in this phase, the piston pushes, in its upward movement, the combustion gases that come out through the exhaust valve that remains open. When reaching the maximum point of upper stroke, the exhaust valve is closed and the intake valve is opened, restarting the cycle.