HVAC Heat Exchanger Extraction for Cab Maintenance Access
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Solution Overview
Problem
The existing HVAC systems in work vehicles, particularly those mounted beneath the seat, complicate maintenance operations due to the need to remove the seat for access, increasing duration and costs associated with tasks like cleaning and inspection.
Innovation Solution
The HVAC system is designed with a housing that mounts to the cab structure, allowing heat exchangers, tank assemblies, and other components to extend through the structure for external access without disconnecting hoses, facilitating maintenance by positioning these components externally for cleaning and inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the HVAC system is positioned beneath the seat, then the HVAC system is integrated into the work vehicle structure, but the seat blocks access to the HVAC components requiring removal for maintenance
Solution Approach 1:
The heat exchanger is extracted from the conventional position beneath the seat and repositioned to extend through the cab structure from the interior to the exterior. This allows the heat exchanger to be accessed and serviced from the exterior of the cab without requiring removal of the seat or other interior components, thereby resolving the access problem while maintaining system integration
2Volume of stationary object
If the heat exchanger is positioned within the cab interior, then the HVAC system is compact, but maintenance requires disconnecting hoses and complex disassembly
Solution Approach 1:
The heat exchanger is oriented to extend through the cab structure in a dimensional transition from interior to exterior space. This repositioning allows maintenance personnel to access the heat exchanger from the exterior of the cab, eliminating the need to disconnect hoses and disassemble interior components, while the heat exchanger remains compact within the vehicle structure
3Stability of the object's composition
If the HVAC system requires seat removal for access, then the HVAC system can be positioned for structural integration, but the duration and costs of maintenance operations increase
Solution Approach 1:
The heat exchanger is extracted from the interior space beneath the seat and repositioned to extend through the cab structure to the exterior. This allows maintenance personnel to service the heat exchanger from the outside of the cab without removing the seat or performing complex disassembly operations, significantly reducing maintenance time and costs while preserving the HVAC system's structural integration into the vehicle
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
This design reduces the duration and costs associated with HVAC maintenance by allowing components to be removed and serviced externally, improving efficiency and reducing the complexity of maintenance procedures.
Implementation Method 1
The housing includes at least one mounting assembly configured to support at least one heat exchanger within the housing
Implementation Method 2
The tank is configured to receive an evaporator
Implementation Method 3
the drain is configured to direct water out of the tank
Implementation Method 4
The HVAC system also includes a heater core and a conduit extending from the heater core
Data Source
AI summary
A heating, ventilation, and air condition (HVAC) system of a work vehicle includes a housing configured to mount to a structure of a cab of the work vehicle. The housing includes at least one mounting assembly configured to support at least one heat exchanger within the housing, and the at least one mounting assembly is configured to position the at least one heat exchanger such that the at least one heat exchanger extends through the structure from an interior of the cab to an exterior of the cab while the at least one heat exchanger is coupled to the at least one mounting assembly.