| 摘要 |
An air intake control device is provided, including a housing, a plurality of bores, a passageway, and a support surface. The housing defines the bores, the passageway, and the support surface. A shaft is rotatably received within the passageway, and a plurality of plates are connected to the shaft. The bores accept fluid with a varying flow rate based on the rotation of the shaft and plates. A bushing is located between the support surface and the shaft and it prevents contact between the shaft and the housing. The bushing may selectively engage the shaft based on the flow rate through the bores. Additionally, the bushing may also have a slit and a variable diameter. The air intake control device may include a bearing assembly, which includes a rotating element which contacts the shaft, and a support element which positions the rotating element with respect to the shaft. The air intake control device may also include a plurality of bearings to rotatably receive the shaft and a spacer coupled with the bearings to form a substantially air-tight seal.
|
