Integrated Filter Cartridge and Cover Assembly

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Solution Overview

Problem

Existing filter assemblies for fluids, such as hydraulic motors, require multiple handling steps and labor-intensive maintenance due to the need to replace filter cartridges, which can lead to contamination and inefficiency.

Innovation Solution

A filter assembly design where the first flange of the filter cartridge forms part of the cover, allowing for easy replacement and ensuring a tight seal, with a holder or closing ring mechanism to secure the cartridge in place, reducing the number of parts handled and simplifying maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the filter cartridge is made removable for maintenance, then the filter assembly can be maintained and the filter cartridge replaced, but the operator must handle multiple separate parts (cover, gasket, filter cartridge) which increases the risk of contamination and labor time

Engineering Contradiction:

Improvefilter cartridge replaceabilityVSAvoidnumber of parts to handle

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The patent combines the cover and filter cartridge into a single integrated unit where the filter cartridge is fixedly joined to the cover. This merging eliminates the need to handle the cover and filter cartridge as separate parts during maintenance, reducing contamination risk and labor time while maintaining the ability to replace the filter cartridge.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of operation

If the cover and filter cartridge are separate parts, then assembly and disassembly is straightforward, but the operator must change the gasket between cover and vessel which increases labor time and contamination risk

Engineering Contradiction:

Improveassembly simplicityVSAvoidmaintenance labor time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

By fixing the filter cartridge to the cover as a single unit, the patent eliminates the need to separately handle and replace the gasket between the cover and vessel during maintenance operations, thereby reducing maintenance labor time and contamination risk.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple separate components are used (cover, gasket, filter cartridge), then each component can be optimized independently, but the number of handling operations increases leading to contamination risks

Engineering Contradiction:

Improvecomponent optimizationVSAvoidcontamination risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent merges the cover and filter cartridge into a single handled unit, reducing the number of handling operations during maintenance. This minimizes the exposure of clean surfaces to contamination while still allowing the filter cartridge to be optimized for its filtering function and the cover for its sealing function.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11691095B2Methods for removal and replacement of a filter element cartridge including an attachment member

Publication Date: 2023.07.04 ATMUS FILTRATION IP INC

AI summary

A filter assembly includes a canister housing closable by a lid and containing a removable and replaceable filter element cartridge. The lid is part of the filter element cartridge and a single unitary component therewith, such that removal of the filter element cartridge also removes the lid, and replacement of the filter element cartridge also replaces the lid.