公开(公告)号：US4503931A

公开(公告)日：1985-03-12

申请号：US490482

申请日：1983-05-02

申请人： Yutaka Sugimoto ,  Kenji Taira ,  Akira Fukushima

发明人： Yutaka Sugimoto ,  Kenji Taira ,  Akira Fukushima

IPC分类号： F01P11/12 ,  F02B77/13 ,  F01N1/24

CPC分类号： F02B77/13 ,  F01P11/12

摘要： A closed enclosure for a vehicle engine has an air inlet and an air outlet formed at its front and rear ends. Both air inlet and air outlet have sets of sound absorber blades for noiselessly admitting ambient cooling air into the enclosure and for noiselessly exhausting the air therefrom. Disposed horizontally within the enclosure, a first heat insulating partition divides its interior into an engine compartment accommodating the engine and, thereover, a muffler and air cleaner compartment. A second heat insulating partition is mounted vertically on the first partition to subdivide the muffler and air cleaner compartment into a muffler compartment receiving an exhaust muffler assembly and an air cleaner compartment receiving an air cleaner assembly. The engine compartment is open both forwardly and rearwardly for the passage of the cooling air therethrough. While the air cleaner compartment is closed, the muffler compartment is open forwardly to take in part of the ambient cooling air from the air inlet via another set of sound absorber blades. An additional pair of air outlets are defined in both sidewalls of the enclosure for the escape of the cooling air from the muffler compartment.

摘要翻译： 用于车辆发动机的封闭的外壳具有在其前端和后端形成的空气入口和空气出口。 进气口和空气出口都有一组吸声器叶片，用于无声地将环境冷却空气引入外壳，并且无噪声地从中排出空气。 第一隔热隔板设置在外壳内水平放置，将其内部分隔成容纳发动机的发动机舱，以及消声器和空气滤清器隔间。 第二隔热隔板垂直地安装在第一隔板上以将消声器和空气滤清器隔室分成容纳排气消声器组件的消声器隔室和容纳空气滤清器组件的空气净化器室。 发动机舱向前和向后打开以使冷却空气通过其中。 当空气滤清器隔间关闭时，消声器隔间向前敞开，以从空气入口经由另一组吸声器叶片吸收一部分环境冷却空气。 在外壳的两个侧壁中均定义了一对额外的空气出口，用于使冷却空气从消声器隔间逸出。