Removable Filter Cartridge for Quick Media Replacement
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Solution Overview
Problem
Existing liquid filter arrangements, such as spin-on and bowl/cartridge types, face challenges in efficient servicing and media replacement, as the entire housing/media combination needs to be removed and replaced, which can be cumbersome and inefficient.
Innovation Solution
A liquid filter assembly design that includes a filter head with a removably mounted filter housing, featuring a peripheral axial projection arrangement for proper positioning and secure mounting, a bypass valve assembly for pressure differential management, and a seal arrangement to prevent bypassing of unfiltered liquid, allowing for easier servicing and replacement of filter media without dismounting the filter head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the entire housing/media combination is removed and replaced during servicing (spin-on type), then the filter media can be replaced, but the filter head must be dismounted and the process is cumbersome and inefficient
Solution Approach 1:
The filter system is divided into separate components: a permanent filter head and a removable filter cartridge. The cartridge contains the media and can be independently removed and replaced without dismounting the filter head, enabling quick media replacement while keeping the filter head in place.
Solution Approach 2:
The filter media is extracted from the housing and placed into a separate removable cartridge. This allows the media to be easily accessed and replaced by simply removing the cartridge from the filter head, eliminating the need to remove the entire filter assembly.
2Ease of repair
If the entire housing/media combination is removed and replaced during servicing (bowl/cartridge type), then the filter media can be replaced, but the housing must be disconnected and reconnected, increasing servicing complexity
Solution Approach 1:
The filter system is segmented into a stationary filter head and a removable cartridge. The cartridge is designed as a self-contained unit that can be easily detached and reattached to the filter head, simplifying the servicing process compared to disconnecting and reconnecting the entire housing.
Solution Approach 2:
The filter cartridge is designed with dynamic accessibility - it can be quickly inserted into and removed from the filter head without complex disassembly or reconnection procedures, making the system adaptable to rapid maintenance cycles.
3Duration of action of stationary object
If the filter head remains installed during media replacement, then continuous operation is maintained, but a secure mounting arrangement is needed to ensure proper positioning
Solution Approach 1:
The filter system separates the permanently installed filter head from the removable cartridge. The head remains in place ensuring continuous operation, while the cartridge provides a simple insert/remove mounting interface that ensures proper positioning through features like peripheral axial projections.
Solution Approach 2:
The filter cartridge is designed to self-position and self-seal when inserted into the filter head. Peripheral axial projections on the cartridge automatically align with corresponding features in the head, ensuring proper positioning and secure mounting without requiring additional adjustment or complex fastening mechanisms.
Data Source
AI summary
Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. Unique features for interface between the enclosed filter cartridge and the shell are provided. Also provided are unique features for interaction between the cartridge and a filter head, in use.