Abstract:
본 발명은 자동차용 라디에이터 그릴 제조방법에 관한 것으로, 더욱 상세하게는 정해진 특정 부위에 금속성 광택감을 부여하기 위하여 상기 특정 부위에만 메탈필름을 부분적으로 인서트시키는 필름 인서트 몰딩(Film Insert Molding) 방식으로 내후성이 우수한 ASA 수지(Acrylonitrile Styrene Acrylate)를 사출성형하여 제조한 라디에이터 그릴 제조방법에 관한 것이다. 본 발명의 라디에이터 그릴 제조방법에 따르면, 불필요한 부위까지 적용되었던 도금공정을 생략할 수 있으므로 원가를 절감할 수 있고, 공정의 단순화로 공정주기를 단축시킬 수 있어 생산성을 향상시킬 수 있는 효과가 있다. 그리고, 기존의 ABS 수지(Acrylonitrile Butadiene Styrene) 대신에 내후성이 우수한 ASA 수지를 사용하여 성형하는 동시에 수지 표면을 엠보싱 처리하여 제조하므로 종래의 흑색도장공정을 생략할 수 있는 장점이 있다.
Abstract:
PURPOSE: An intake system of an engine is provided to enhance durability since an inter lever is relatively free from external interference due to a structure of directly connecting the middle parts of first and second shafts, which are adjacent. CONSTITUTION: An intake system of an engine comprises first and second intake paths, a first shaft(120a), a second shaft(120b), a first flap(130a), a second flap(130b), an inter lever(140) and a driving unit(100). The first and second intake paths are arranged side by side. The first and second shafts are arranged side by side along the first and second intake paths. The first and second flaps are respectively mounted on the first and second to open/close the first and second intake paths. One end of the inter lever is connected to the first shaft and the other end of the inter lever is connected to the second shaft. The rotation of the first shaft is delivered to the second shaft. The driving unit rotates the first shaft so that the first and second flaps make the first and second intake paths open/close.
Abstract:
PURPOSE: An injection system using an air shroud pipe is provided to improve the efficiency of atomization even when a vehicle runs at middle and high speed by installing an auxiliary air supply device on the air shroud pipe. CONSTITUTION: An air introducing pipe(11) connected to the front part of a throttle valve(21) is connected to an injector(10) mounted on an intake manifold(20). An auxiliary air supply device(30) selectively supplies auxiliary air to the air introducing pipe(11) according to the pressure difference between the front part and the rear part of the throttle valve(21). Thus, the auxiliary air is supplied to the injector(10) through the air introducing pipe(11) in idle state having a wide pressure difference in the throttle valve(21), and compressed air is supplied to the injector(10) from the auxiliary air supply device(30) at middle and high speed. The auxiliary air supply device(30) is composed of a compressor(31), a motor(32) driving the compressor(31), a map sensor(33), and a control system(34).