Interchangeable Capture Hoods for Ductless Cooking Ventilation
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Solution Overview
Problem
Traditional ventilation systems for commercial cooking equipment require extensive ductwork and external venting, leading to installation complexity, maintenance costs, and potential air pollution issues when cooking appliances are not properly vented, especially when located away from kitchen spaces.
Innovation Solution
A recirculating, self-contained ventilation system with interchangeable hoods that uses internal air ducts and air handling systems to filter and treat grease-laden air, smoke, heat, and odors, featuring adjustable louvers and modular design to accommodate different appliance shapes, allowing for ductless operation and improved air capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed building ventilation systems with external ductwork are used, then air capture effectiveness is improved, but installation complexity and cost increase
Solution Approach 1:
The ventilation system is divided into separate modular components: a base unit containing the fan and air treatment system, and interchangeable capture hoods that can be selected and attached based on specific appliance configurations. This segmentation allows the complex air handling components to be pre-assembled and tested separately, while the hood selection and attachment process becomes a simpler, more flexible installation task.
Solution Approach 2:
The base unit is designed as a universal platform that can accommodate multiple different hood types through standardized connection mechanisms. The identical connection portions on various hood shapes allow a single base unit to serve multiple cooking appliance configurations, reducing installation complexity while maintaining effective air capture for different appliance geometries.
2Adaptability or versatility
If cooking equipment is positioned away from kitchen spaces without proper venting, then installation flexibility is improved, but air pollution and fire risk increase
Solution Approach 1:
The system incorporates self-contained air treatment capabilities within the base unit, including filtration and air cleaning functions that operate autonomously to treat polluted air at the source. This allows the ventilation system to effectively manage air quality even when positioned away from main kitchen spaces, reducing the harmful effects of cooking emissions in remote locations.
3Reliability
If traditional external venting systems are used, then air treatment effectiveness is improved, but maintenance cost and difficulty increase
Solution Approach 1:
By segmenting the ventilation system into a permanent base unit and removable hoods, maintenance tasks can be performed on individual components without affecting the entire system. The modular design allows technicians to access and service specific parts more easily, reducing overall maintenance difficulty while preserving air treatment effectiveness in the centralized base unit.
Data Source
AI summary
A system includes a plurality of capture hoods and a hood supporting unit. Each of the plurality of capture hoods has a hood portion and a connection portion. The connection portion is for connection to the hood supporting unit. The hood supporting unit is capable of connecting to just one of the plurality of capture hoods at a time. The hood portions of the plurality of capture hoods have different shapes. The connection portions of the plurality of capture hoods are identical so any one of the plurality of capture hoods can connect to the hood supporting unit.