| 摘要 |
A fluid flow channel includes a scavenging system to eject debris from the channel. The channel includes a back wall, channel floor, and upward ramp extending forward to an outer lip. The scavenging system includes a pivoted actuator with a face plate framework, adapted for rolling contact, reciprocally movable between retracted and forward positions relative to the back wall. The scavenging system rolls on tracks as it traverses the channel. The channel profile and scavenging system are configured to maximize the angle between face plate framework face plate and ramp surface thereby minimizing the potential for jamming of the scavenging system during operation while economizing on channel width. The outer lip includes a flat top surface for transient support of the face plate framework at the end of its forward movement. The scavenging system further includes flexible wiper blades for sequential wiping contact with debris as it traverses the channel, and a forward-extending slider blade spring-biased toward the channel.
|
