Air Cleaner Assembly with Helical Flow and Integrated Rain Cover
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Solution Overview
Problem
Conventional air cleaners are cumbersome due to protruding components, require a large number of parts for assembly, and have limited centrifugal force action on dirt particles, making them difficult to install and costly to manufacture.
Innovation Solution
An improved air cleaner design featuring a low-profile rain cover and integrated housing components that eliminate the need for intermediate air ducts and reduce the number of parts, enhancing centrifugal force action through a helical air flow path influenced by shaped walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional air cleaners use protruding rain caps and intermediate air ducts, then they provide adequate rain protection and air flow, but they become cumbersome and require large number of parts for assembly
Solution Approach 1:
The patent combines the rain cap and housing into a single integrated component. The rain cap is formed as an integral part of the housing, eliminating the need for separate rain caps and intermediate air ducts. This merging of components reduces the total number of parts and simplifies assembly operations while maintaining rain protection and air flow functions.
Solution Approach 2:
The integrated housing structure performs multiple functions simultaneously: it provides rain protection through the downwardly extending rain cap portion, guides air flow through the inlet opening, and serves as the main structural body. This multi-functionality eliminates the need for separate specialized components, reducing assembly complexity.
2Ease of manufacture
If conventional air cleaners use multiple separate components, then they allow modular assembly, but they increase assembly complexity and manufacturing cost
Solution Approach 1:
The rain cap and housing are manufactured as a single integrated component, reducing the number of manufacturing operations needed for assembly. This eliminates the need for separate machining, sealing, and fastening operations between multiple components, thereby reducing manufacturing cost and assembly complexity simultaneously.
3Reliability
If conventional air cleaners use limited centrifugal force action, then they simplify the housing design, but they reduce effectiveness in removing dirt particles
Solution Approach 1:
The patent incorporates a helical air flow path within the housing that creates rotational motion of the air stream. This curved, helical path increases centrifugal force action on dirt particles, improving separation effectiveness. The helical geometry is integrated into the housing design, maintaining a relatively simple overall structure while enhancing the centrifugal cleaning action.
4Volume of moving object
If conventional air cleaners use protruding components, then they provide functional separation of duties, but they increase the overall size and make installation difficult
Solution Approach 1:
By integrating the rain cap into the housing body, the patent eliminates protruding components and creates a compact, streamlined overall shape. This reduces the volume occupied by the air cleaner and simplifies installation by reducing the number of components that need to be positioned and assembled in space-constrained environments.
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 improved design is more compact, easier to install, reduces assembly complexity, and effectively removes dirt and debris with enhanced centrifugal force, minimizing leaks and installation issues.
Implementation Method 1
enhancing centrifugal force action through a helical air flow path influenced by shaped walls
Implementation Method 2
imparting helical motion upon the air as it proceeds within a first chamber formed between the rain cover and a housing portion
Implementation Method 3
a filter element 8 that uses pleated paper to filter dust and other debris out of the combustion air flow
Data Source
AI summary
In at least some embodiments, the present invention relates to an air cleaner having a housing portion, and a low profile rain cover having an opening on an underside of the cover to allow unfiltered air to enter into the air cleaner. Also, in at least some embodiments, the present invention relates to an air cleaner including a housing and an additional component by which the air cleaner is capable of being directly coupled to a carburetor inlet. In some such embodiments, one or more protrusions can be provided within a channel formed by the housing/additional component to influence air flow. Further, in at least some embodiments, the present invention relates to an air cleaner having a shaped wall formed on a housing portion, where the shaped wall includes both an interior surface and an exterior surface by which air flowing within the air cleaner is imparted with helical motion.