Problem-Based Learning As the Delivery Mode

Improving feature Worsening feature Inventive prineiples Ideas/potential solutions 

1— Weight of moving objeet 7—Volume of moving object 29—Pneumatics and hydraulics Direct stream of air to remove dust from filter/use liquid to remove dust 

1— Weight of moving object 9—Speed 15—Dynamic Filter can rotate. As it gets heavy with dusf it rotates to a new section 

23—Loss of substance 7—Volume of moving object 1—Segmentation Filter has many segments. Once it gets clogged, it can be rolled to a new segment/section 

23—Loss of substance 9—Speed 10—Preliminary action To wash the filter before use 

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