| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve various supercharging performances with a simple and compact structure.SOLUTION: A first compressor vane 13 and a second compressor vane 14 are disposed in a compressor housing 12 constituting an exhaust turbo supercharger 9 in a state of being superposed inside and outside. By switching a flowing direction of intake air to a first intake inlet 22 and a second intake inlet 25 by a valve device 33, supercharging performances can be switched to high pressure and low pressure. The first intake inlet 22 and the second intake inlet 25 are formed into the shape of a double cylinder. The valve device 33 has a sheet of a first valve element 34 for opening and closing the first intake inlet 22, and two sheets of second valve elements 35, 36 for opening the second intake inlet 25, and the second valve elements 35, 36 are rotated in conjunction with each other to be superposed and expanded by rotation of a valve shaft 37. Thus the supercharging performances can be switched with high response by one valve device 33 incorporated in the exhaust turbo supercharger.</p> |
