公开(公告)号：EP1832731A4

公开(公告)日：2013-11-27

申请号：EP05820179

申请日：2005-12-26

申请人： KOBELCO CONSTR MACH CO LTD

发明人： NAKASHIMA HAJIME ,  TANIUCHI TOMOYA ,  KIMURA YASUMASA ,  KINOSHITA SHINICHI

IPC分类号： F01P5/06 ,  E02F9/00 ,  F01P11/10 ,  F01P11/12

CPC分类号： E02F9/0866 ,  F01P5/06 ,  F01P11/10 ,  F01P11/12

摘要： Problem: To improve a soundproof performance on an air intake side of a cooling structure of a construction machine without enlarging an air intake chamber. Solution: An air intake chamber (16) is provided on the air intake side of a heat exchanger (15) in an engine room (12), and a first air intake port (17) is formed in a top face of the air intake chamber (16). In the air intake chamber (16), a duct (18) independently formed as a shield member is disposed so as to partition the air intake chamber (16) into two chambers (16a), (16b), and also in a manner such that the core surface (15a) of the heat exchanger (15) is enclosed airtightly from the surrounding atmosphere. A second air intake port (24) is formed in the duct (18); thereby, the air intake chamber (16) is constituted in a doubled duct structure, and air sucked from the first air intake port (17) is guided through an air intake passage to the core surface (15a) of the heat exchanger (15), the air intake passage being bent so as to be roughly L-shaped.

摘要翻译： 问题：提高施工机械的冷却结构的进气侧的隔音性能，而不会扩大进气室。 解决方案：在发动机室（12）的热交换器（15）的进气侧设置有吸气室（16），在进气口的上表面形成有第一空气吸入口（17） 室（16）。 在空气吸入室16中，设置独立地形成为屏蔽部件的管道18，以将进气室16分隔成两个室16a和16b而形成。 热交换器（15）的芯表面（15a）从周围的气氛气密地封闭。 第二进气口（24）形成在管道（18）中; 因此，吸气室16构成为双重管路结构，从第一吸气口17吸入的空气被引导到通过热交换器15的芯面15a的进气通路。 进气通道弯曲成大致L形。