[가솔린엔진] 흡기 다밸브 가솔린 엔진에 대한 흡입 유량 계수의 적용 가능성 검토

In order to design a cylinder head optimally, the steady flow test has been used as a simple and useful method for the estimation of intake mass flow characteristics. However, the application technique of various flow coefficients to a multi-intake valve cylinder head is not obviously declared. Thus, in this study, the characteristics and limitation of intake flow coefficients are introduced when the steady flow test is applicated to a multi-intake valve engine. From the steady flow test and theory, the prediction method of the maximum power is developed and the effects of valve specifications on the geometrical valve open area is introduced.