Off-Road Vehicle Canister Mounting with Vibration Damping
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Solution Overview
Problem
Off-road vehicles face challenges in mounting evaporative emission control canisters due to excessive vibrations and harsh environmental conditions, which affect their utility and durability.
Innovation Solution
A vehicle canister mounting arrangement that includes a frame with base and upright members, a console for mounting the canister close to the vehicle's center of gravity, and a tubular frame member with a bracket and resilient members to absorb vibrations and protect the canister from environmental elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the canister is mounted using rigid mounting devices on the vehicle body, then the mounting structure is simple and stable for automobiles on paved roads, but the canister is adversely affected by excessive vibrations and harsh environmental conditions in off-road vehicles
Solution Approach 1:
A bracket assembly is introduced as an intermediary component between the canister and the vehicle frame. This bracket assembly includes resilient members (such as rubber or elastomeric materials) that act as vibration-dampening intermediaries, absorbing and isolating vibrations from reaching the canister while still providing secure mounting.
Solution Approach 2:
Resilient members are pre-installed in the bracket assembly to provide cushioning and vibration isolation before the canister is subjected to harsh off-road conditions. This beforehand cushioning protects the canister from vibrations and shocks that would otherwise occur during off-road operation.
2Ease of operation
If the canister is mounted in a location that is easily accessible for installation and maintenance, then ease of operation is improved, but protection from harsh environmental conditions may be compromised
Solution Approach 1:
The canister is mounted in the vertical dimension within the console structure, positioned above the base members and between the upright members. This vertical placement within the enclosed console space provides protection from ground-level environmental contaminants while maintaining accessibility from above for installation and maintenance operations.
Solution Approach 2:
The canister is nested within the console structure, which acts as a protective enclosure. The console provides a nested protective environment that shields the canister from harsh external conditions while allowing access to the canister through the console opening for installation and maintenance.
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 reduces vibrations and protects the canister from harsh conditions, improving its functionality and durability by positioning it near the center of gravity and using resilient members to absorb shocks, while also facilitating easy access for installation and maintenance.
Implementation Method 1
resilient members to absorb vibrations and protect the canister from environmental elements
Implementation Method 2
resilient members to absorb vibrations and protect the canister from environmental elements
Implementation Method 3
canisters having an absorbent material, such as active carbon, to remove the vaporized fuel from the fuel tank
Data Source
AI summary
A canister mounting arrangement includes a vehicle frame having a plurality of base members for supporting at least one seat in an occupant area, a pair of front upright members extending in an upward direction with respect to the base members and positioned at a forward portion of the occupant area, and a pair of rear upright members extending in an upward direction with respect to the base members and positioned at a rearward portion of the occupant area. The arrangement includes a fuel tank and a canister for receiving vapor from the fuel tank. The canister is mounted in a location above the base members, behind the front upright members and in front of the rear upright members.