Vehicular Air Cleaner Positioning Assembly
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Solution Overview
Problem
Conventional air cleaners for vehicles face challenges in convenient element replacement and vibration due to the element not being firmly fixed, leading to inefficient filtering and noise generation from air flow pressure.
Innovation Solution
An air cleaner design featuring a positioning assembly with driving shafts, eccentric cams, and an element cover that allows for easy element replacement and secure fixation, preventing vibration and air leakage by rotating the element to align with the body and cover, using a bevel gear and locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the element is simply placed on the body without a positioning assembly, then the device complexity is reduced, but the element cannot be firmly fixed and vibrates due to air flow pressure
Solution Approach 1:
The positioning assembly is divided into separate components: driving shafts, eccentric cams, and locking mechanisms. This segmentation allows each component to perform its specific function while maintaining overall structural simplicity and ease of assembly.
Solution Approach 2:
The positioning assembly uses rotatable driving shafts with eccentric cams that can dynamically adjust and lock the element at specific positions. This dynamic mechanism provides firm fixation while allowing for easy replacement, resolving the contradiction between simplicity and stability.
2Reliability
If the element is firmly fixed using a positioning assembly with driving shafts and locking mechanisms, then the element stability is improved, but the device complexity increases
Solution Approach 1:
The positioning assembly is designed to automatically lock the element in place through the interaction of eccentric cams and locking mechanisms, eliminating the need for additional fasteners or complex assembly procedures. The system self-regulates to provide stable fixation.
3Ease of operation
If the element is installed in a drawer type for easy replacement, then the ease of operation is improved, but the element may vibrate due to insufficient fixation
Solution Approach 1:
The positioning assembly pre-positions the element using eccentric cams that automatically align and lock the element in the correct location during insertion. This preliminary positioning action ensures both easy replacement and firm fixation without requiring additional steps.
4Device complexity
If the element is not firmly fixed, then the device complexity is reduced, but air leakage occurs and filtering efficiency decreases
Solution Approach 1:
The positioning assembly acts as an intermediary mechanism between the element and the air cleaner housing, providing a reliable connection that prevents air leakage while maintaining structural simplicity. The eccentric cam mechanism creates a positive seal without requiring complex gasket systems.
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
Enables easy and efficient replacement of the air filtering element while preventing vibration and air leakage, ensuring effective air filtration and reducing maintenance time.
Implementation Method 1
a positioning assembly (140) rotatably coupled to a lower portion of the element (130) and vertically elevating and descending the element (130) according to a rotation
Implementation Method 2
using a bevel gear and locking mechanism
Implementation Method 3
an element cover (150) coupled to an opened access port of the body (110) and the cover (120) to thereby prevent the element (130) from being separated from the access port
Implementation Method 4
the element (30) interposed between the body (10) and the cover (20)... the element (130) inserted into or drawn from the body (110) and the cover (120) through an access port
Data Source
AI summary
A vehicular air cleaner may include: a body having an air inlet port; a cover coupled to a body and having an air outlet port; an element inserted into or drawn from the body and the cover through a access port formed in one side of the body and the cover; a positioning assembly rotatably coupled to a lower portion of the element and vertically moving the element by rotation; and an element cover coupled to the body and the cover to prevent the element from being separated from the access port, wherein the positioning assembly includes driving shafts each fitted with fixing brackets formed on a flange along a side direction of the element, and a driven shaft fitted with a fixing bracket formed on a flange along a front side of the element and having ends rotatably engaged with a pair of driving shafts.