| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable intake device capable of easily incorporating a switching valve into an intake passage structure and capable of smoothly operating the switching valve without affected by strain of the intake passage structure. SOLUTION: In the variable intake device, an actuator connected with an end part of a valve stem of the switching valve for switching an intake air quantity is fixed with a side wall of the intake passage structure and the valve stem 33 is rotatably supported by a bearing member 67 in the intake passage structure. The intake passage structure is separated into a plurality of structures and is composed of these separated structures which are welded and adhered with each other. A bearing support part 65 for loading the bearing member 67 is formed for a structure 21 of the separated structures, a bearing holder 75 for holding the bearing member 67 sandwiched between the bearing support part 65 and the bearing holder 75 in the bearing support part 65. A claw part 79 engageably and disengageably fixed to an engaging part 71 of the bearing support part 65 is integrally formed for the bearing holder 75. COPYRIGHT: (C)2009,JPO&INPIT
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