Utility Vehicle Air Intake Chamber Joint for Sealable Assembly
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Solution Overview
Problem
Existing utility vehicles with divided chamber bodies face challenges in securing sealability between components while minimizing cost increases, often requiring additional sealing members and assembly steps.
Innovation Solution
A utility vehicle design featuring a chamber body divided into two members, where one member has a tip protrusion and the other a matching recess, forming a crank-like joint to ensure sealability without additional sealing members, and a connecting pipe to supply outside air to an on-board device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member is provided between two divided chamber body members, then sealability is improved, but the number of components and assembling steps increases, leading to cost increase
Solution Approach 1:
The sealing function is merged with the structural connection function by forming an integral joint between the first and second members. The joint portion of the first member includes a groove that receives the second member, creating a built-in sealing structure that eliminates the need for separate sealing members while maintaining both connection and sealing functions.
Solution Approach 2:
The sealing function is extracted from the separate sealing member and integrated into the joint structure itself. The groove and engaging portion form an inherent sealing mechanism that is part of the chamber body structure, removing the need for additional sealing components.
2Ease of manufacture
If the chamber body is divided into two members, then ease of assembly and manufacturing is improved, but sealability between members deteriorates
Solution Approach 1:
The second member is nested within the joint portion of the first member through the groove structure. The engaging portion of the second member fits into the groove of the first member, creating a nested configuration that provides both easy assembly and effective sealing through the interlocking geometry.
Solution Approach 2:
The joint portion of the first member is given special local structure with a groove that specifically addresses the sealing requirement at the interface between members. This localized structural feature enables both detachable assembly and reliable sealing without affecting the overall simplicity of the divided chamber body design.
Data Source
AI summary
A utility vehicle including a body, a frame, an on-board device supplied with outside air, a chamber body having an intake space and divided into a first member disposed on a first side and opened to a second side and a second member detachably attached to the first member from the second side and opened to the first side, one of the first and second members having an engaging claw, and another one having an engaging portion, and a connecting pipe connecting the chamber body and the on-board device. The first member includes a first frame-shaped outer wall, a first tip surface, and a tip protrusion protruding from the first tip surface to the second side, and the second member includes a second frame-shaped outer wall, a second tip surface, and a tip recess recessed from the second tip surface toward the second side and fittable to the tip protrusion.