Snow Blower Chute Anti-Clogging Heater Vibration
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Solution Overview
Problem
Existing snow blowers often experience chute clogging due to snow accumulation, which restricts snow flow and can lead to damage if not manually cleared, disrupting operation and efficiency.
Innovation Solution
A snow blower design featuring a frame with a rotatable auger, wheels, and an active heater integrated with the chute to prevent clogging, including a resilient chute body and vibrational elements to disrupt snow clumps, along with a controller that adjusts auger motor output based on operational sensor signals to maintain efficient snow clearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If snow is continuously fed to the auger during extended operation, then snow clearing productivity is improved, but snow accumulation and clogging in the chute occurs
Solution Approach 1:
The patent applies mechanical vibration through a vibrating element that contacts the chute to disrupt snow clumps and prevent clogging. The vibration mechanically agitates the snow material in the chute, breaking up accumulated snow and maintaining continuous flow during extended operation without manual intervention.
Solution Approach 2:
The patent changes the temperature parameter of the chute by applying heat to prevent snow accumulation. By raising the chute temperature above freezing, the snow material undergoes parameter change from frozen to partially melted state, reducing adhesion and preventing clogging while maintaining continuous snow clearing productivity.
2Reliability
If the chute is heated to prevent snow clogging, then chute flow reliability is improved, but energy consumption increases
Solution Approach 1:
The patent applies periodic action by controlling the heater to operate only when clogging conditions are detected or anticipated. The controller activates the heater intermittently rather than continuously, reducing energy consumption while maintaining sufficient temperature to prevent snow accumulation and ensure reliable chute flow.
Solution Approach 2:
The patent makes the temperature parameter adjustable through controller regulation. The heater temperature and duty cycle are dynamically controlled based on operating conditions, optimizing the balance between preventing snow clogging and minimizing energy consumption during different snow clearing scenarios.
3Reliability
If manual clearing of clogged chute is performed, then chute flow reliability is restored, but operational time is lost
Solution Approach 1:
The patent implements self-service by providing automatic prevention and treatment mechanisms that eliminate the need for manual chute clearing. The vibrating element and heater work autonomously under controller management to prevent and resolve clogging conditions, maintaining continuous operation without user intervention and preserving operational time.
Solution Approach 2:
The patent uses mechanical vibration as an automatic treatment mechanism that actively disrupts and clears snow clumps from the chute. When clogging is detected, the vibrating element automatically agitates the snow material to break up and dislodge accumulations, restoring chute flow reliability without requiring manual clearing operations.
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
The solution effectively prevents chute clogging, ensuring continuous operation by heating and vibrating the chute area to prevent snow accumulation and adjusting auger motor output to manage snow flow, thus enhancing operational efficiency and reducing user intervention.
Implementation Method 1
an active heater may be supported on the frame in thermal communication with the chute to heat a predefined area
Implementation Method 2
vibrational elements to disrupt snow clumps
Data Source
AI summary
A snow blower may include a frame, a rotatable auger, one or more wheels, and a chute. The rotatable auger may be mounted to the frame. The one or more wheels may be mounted to the frame apart from the rotatable auger to support the snow blower. The chute may extend from the frame above the rotatable auger. One or more features such as an active heater, a resilient chute body, or a controller configured to direct a blowing operation may further be provided.