![]() Which should not be forgotten, the 4 stroke engine has a valve mechanism that can regulate valve openning according to timing (when the suction step is in). Where can gas enter the combustion chamber? Enlargement of the combustion chamber volume due to the piston movement downwards, in another side intake valve open and it will suck up the gas that has been prepared to enter the enlarged combustion chamber. So that the combustion chamber volume will increase, and the impact of the vacuum in the combustion chamber is also getting bigger. However, when the intake stroke start when the piston move down. This position, will leave very little space in the combustion chamber. This position means, the piston position is at the top in the cylinder block. The way it works, it starts from the piston whose position is on the TDC (top dead center). Intake stroke is a process where gas (a mixture of air and fuel with a certain level) are inserted into a room inside the engine, this room called a combustion chamber. The valve, operated by a mechanism that bound to the crank shaft of engine.Īfter you understand the main part, lets discuss the main menu
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