Cylinder engine that has a slope 42º, or close to 45 ° have all the advantages of an upright cylinder or sleep. The drawback is more minimal than other types of engines. Such cylinders similar to the slide in kindergarten or like a roller coaster.
Consider the kindergarten children who no longer play the slide! The more the child was sliding down, the sooner the launching, especially if skating like Dufan.
That's because the 45-degree position, a blend of mild friction and strong gravitational pull (centrifugal effect). In this position, there is centripetal force.
So in conclusion, up-down motion of the piston in the motor cylinder 45 ° s, besides minimal friction and the Earth's gravity assisted, aided also by the centripetal force and centrifugal effects, so its POWER LOSS smaller than an upright cylinder motor, especially the longitudinal.
To excess, is a combination of excess cylinder upright and cylinder longitudinal Moreover, the advantage of the 42 degree engine block that has not been mentioned in his suction is strong. That is, the position of the head is tilted 42 degrees, making the suction hole into the straight, so porting this model makes the gasoline-air mixture straws into the combustion chamber is very strong, because of minimal curvature. In addition, the position of the open end of the inlet to the top, making the gasoline-air mixture straw into the combustion chamber assisted by Earth's gravity, so that the gas-air flow velocity (flow) becomes very high. The effect is to make significant power and torque increases.
Ported nearly perpendicular to the ground |
Besides, there's more advantage from the cylinder 42 degrees, which can apply Downdraft ported models. Namely ported almost straight without bends. So that the fuel gas flow was minimal barriers. Creating volumetric efficiency increases.
Ported nearly Downdraft |