Resilient Snow Blower Chute Dynamics for Clog Prevention
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Solution Overview
Problem
Existing snow blowers often experience chute clogging due to snow accumulation, which obstructs snow flow and can lead to damage if not manually cleared, disrupting operation and increasing effort.
Innovation Solution
A snow blower design featuring a rotatable auger, wheels, a chute body, and a clearing blade that selectively extends across the outlet opening to disperse snow, along with a controller that adjusts auger motor output based on operational signals to prevent clogging, and a resilient chute body that can deform to disrupt snow buildup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional fixed chute design is used, then the structure is simple and easy to manufacture, but snow accumulates and clogs the chute during extended operation
Solution Approach 1:
The chute is designed with a resilient body that can dynamically change its configuration from a normal discharge position to a disrupted position. This dynamic capability allows the chute to respond to snow accumulation by deforming and disrupting clogs, maintaining reliable snow flow without requiring complex mechanical actuators or multiple components.
Solution Approach 2:
The chute body's physical state is changed from rigid to resilient, allowing it to deform under snow load. This parameter change enables the chute to automatically disrupt snow buildups by changing its shape and internal volume, preventing clogs while maintaining a simple single-piece structure that is easy to manufacture.
2Productivity
If the snow blower operates continuously, then productivity increases, but snow buildups accumulate and clog the chute
Solution Approach 1:
The resilient chute provides continuous clog prevention during uninterrupted snow blowing operations. As snow accumulates during continuous operation, the chute deforms to disrupt buildups, ensuring that the useful action of snow discharge continues without interruption or manual intervention, maintaining both productivity and reliability.
Solution Approach 2:
The chute serves itself by automatically disrupting snow buildups through its resilient deformation capability. During continuous operation, the chute detects and responds to clog conditions by changing its configuration, eliminating the need for external intervention or additional active components, thus maintaining continuous productivity.
3Ease of operation
If manual clearing of clogged chute is required, then the simple fixed chute structure is maintained, but operation is disrupted and user effort increases
Solution Approach 1:
The resilient chute automatically prevents and clears clogs through its own deformation capability, serving the function of clog prevention without requiring user intervention. This eliminates time loss to manual clearing and maintains ease of operation during extended snow blowing sessions.
Solution Approach 2:
The chute proactively disrupts snow buildups before they can fully clog the discharge path. By deforming in response to accumulating snow, the chute performs preliminary action to prevent complete blockages, avoiding operation disruption and eliminating the need for manual clearing interventions.
4Strength
If the chute is rigid and fixed, then manufacturing is simple, but snow buildups can cause damage to the snow blower
Solution Approach 1:
The chute material parameter is changed from rigid to resilient, allowing the chute to deform under snow load and disrupt buildups before they can cause damage. This single parameter change provides damage resistance while maintaining a simple single-piece structure without requiring complex reinforcement or additional components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents chute clogging, maintains efficient snow clearing operations, reduces manual intervention, and minimizes risk of damage to the snow blower by automatically managing snow flow and dispersing it effectively.
Implementation Method 1
the chute comprising a resilient chute body deformable relative to the chute axis
Data Source
AI summary
A snow blower may include a frame, a rotatable auger, one or more wheels, and a chute body. The frame may define an inlet opening and an outlet opening. The outlet opening may be circumferentially bounded about a chute axis. The rotatable auger may be mounted to the frame rearward from the inlet opening and below the outlet opening to motivate snow to the outlet opening. The one or more wheels may be mounted to the frame apart from the rotatable auger to support the snow blower. The chute body may extend from the frame along the chute axis above the outlet opening.