Abstract:
An induction system for a supercharged internal V-type combustion engine includes a monolithic continuous unitary casting housing a supercharger with a rotor and gear assembly operative to discharge pressurized air to a common bounding receiving plenum, through a first slidably-removable intercooler providing a first cooling, and then to a pair of second side intercoolers providing a second cooling within the bounded plenum and in fluid communication therewith. First and second intercoolers are secured within the monolithic housing. The monolithic housing provides a robust and stable housing of light weight and allows an exterior air cooling as well. Side walls of the supercharger are separate from and are spaced from air intake runners of a cylinder block. Air in the plenum is additionally cooled by convective surface cooling while being guided in an appropriate direction. The intercoolers are plumbed in parallel allowing for enhanced temperature management of the air flow in combination with the convective cooling. The monolithic housing includes rib elements for sound attenuation and strength while minimizing weight. This arrangement allows for enhanced cooling, and simplifies manufacture and service.
Abstract:
본 발명은 차량의 흡기 매니폴드의 러너 내부에 배치된 가변밸브를 회동시키는 흡기 매니폴드용 액추에이터에 관한 것으로, 부압공간부를 구비한 하우징, 부압공간부로 출입하는 공기의 압력에 의해 작동하여 상기 가변밸브를 회동시키는 작동부, 외부의 부압공급원과 연결되는 배기유로, 부압공간부를 승압시키는 외기가 유입되는 흡기유로, 하우징의 내부에 상기 배기유로 및 흡기유로와 연통되게 구비되는 스풀홀, 하우징의 내부에 상기 부압공간부 및 스풀홀과 연통되게 구비되는 공기출입유로, 배기유로와 흡기유로를 선택적으로 개폐하는 밸브체, 및 밸브체를 작동시키는 솔레노이드 유닛을 포함하여, 작동부를 구동하기 위한 유로를 단순화하여 부압경로를 단축시킬 수 있게 된다.
Abstract:
An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, swirl consistency is improved between engine cylinders and between the left bank and the right bank, improving the consistency of power output and reducing emissions, particularly particulate emissions, also called smoke.
Abstract:
High pressure regions (31H to 35H) and low pressure regions (31L to 34L) are created based on the exhaust gas flow at curves in an EGR pipe (30), thereby enabling the exhaust gas pressure at inlets (21b to 26b) of gas introduction passages (21a to 26a) to be adjusted. Accordingly, regardless of the number of cylinders or whether the lengths of the flow paths of the EGR pipe (30) are the same, the exhaust pressure at the inlets (21b to 26b) of the gas introduction passages (21a to 26a) can be appropriately adjusted so any difference in pressure of exhaust gas introduced into branch pipes (21 to 26) can be reduced. In this way, the EGR rates of the cylinders can be made closer or the same such that stable combustion can be achieved, thus enabling stable engine operation to be maintained. The EGR pipe (30) is arranged weaving closely between the branch pipes (21 to 26) so space efficiency can be improved and a sufficient amount of exhaust gas can be introduced evenly into the cylinders.
Abstract:
For a V-type engine (E) which has an independent air-intake system for each one of banks (2L, 2R), a vibration plate unit (90) is disposed in the interior of a resonance conduit (76) for obtaining the beneficial effects of resonant supercharging. In this vibration plate unit (90), a plate member (91) made from metal is fitted in the interior of the resonance conduit (76) via a support member (92) made from rubber, and thereby it is arranged, while blocking mutual flow of air between the banks (2L, 2R), also to obtain the beneficial effects of resonant supercharging by enabling the mutual transmission of pressure between surge tanks (74L, 74R).