New Mercedes Benz Car Engine 2012, compression Stroke the compression ignition, and much the combustion of the charge take place during next upward stroke piston time elapses between the mixing of the
gasoline and are and its admission to the cylinder through an inlet valve is too brief to secure a perfect combustible mixture What passes cylinder consists air, gasoline, more or less perfect mixture of the two. mercedes benz car engine obtain a more homogeneous mixture advantage is taken of the heat produced by compression. The heat makes the gasoline easier to burn while the compression forces it into closer combination with the air.
Even then a perfect mixture may not result for the air and gasoline vapor, instead of being thoroughly combined, may be in layers. mercedes benz car combustion would then be slow and uneven when the air and gasoline vapor in the mixture are in the right proportion this difficulty is seldom met the mixture is ignited by a spark whale under compression, and combustion is over half-completed when the piston is at top dead-center. mercedes benz be noted that both Inlet and exhaust valves are closed during this stroke. Power Stroke.
expansion gases due to the heat combustion exerts a pressure cylinder piston. benz car engine r this impulse the piston moves downward both valves also are closed during much of this stroke exhaust stroke. When the exhaust valve is opened the greater part of the burned gases escape bemuse expansion upward movement piston pushes remaining exhaust valve
