Filter Adapter Piece for Bypass Valve Orientation
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Solution Overview
Problem
Existing filter devices with bypass valves are complex in design and lack versatility in handling varying fluid pressures, particularly when used in orientations that risk direct contamination from soiled fluids during bypass operation.
Innovation Solution
A filter device with a hollow-cylindrical filter element and integrated bypass valve, where the valve is force-actuated by a spring element, and an adapter piece that limits the valve's adjustment travel and provides a flow connection, allowing for efficient fluid guidance both through and around the filter medium, preventing contamination from soiled fluids when the bypass valve opens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the bypass valve is integrated into the filter element with the spring element, then the device complexity is reduced, but the adaptability to different orientations and pressure conditions is limited
Solution Approach 1:
The adapter piece is separated from the end discs and designed as an independent component that can be selectively positioned. This segmentation allows the bypass valve assembly to be oriented differently depending on the application, enabling the filter to adapt to various mounting orientations while keeping the overall structure simple.
Solution Approach 2:
The adapter piece serves multiple functions: it acts as a valve seat for the bypass valve, provides flow connection sections for fluid passage, and limits the adjustment travel of the valve body. This multi-functionality reduces the need for additional components, achieving versatility without increasing device complexity.
2Device complexity
If the bypass valve is positioned on the upper end of the filter element, then the structural design is simplified, but contamination risk increases when used in upright position with lower end projecting into fluid sump
Solution Approach 1:
The adapter piece is designed to be movable relative to the filter element, allowing it to be repositioned between the upper and lower end faces depending on the mounting orientation. This dynamic repositioning capability ensures that the bypass valve is always positioned to prevent contamination, whether the filter is mounted upright or horizontally.
Solution Approach 2:
The adapter piece acts as an intermediary component that mediates between the bypass valve and the filter element. By positioning this intermediary at different ends of the filter, the system can adapt to various orientations and prevent soiled fluid from directly contacting the bypass valve, thereby eliminating contamination risks.
3Productivity
If the valve body adjustment travel is unlimited, then the bypass valve can fully open for maximum flow, but the sealing precision deteriorates when closed
Solution Approach 1:
The adapter piece is designed with a predetermined adjustment travel limit for the valve body. This preliminary constraint ensures that the valve body always returns to the same precise closed position, maintaining consistent sealing precision. At the same time, the travel limit is calibrated to allow sufficient opening for adequate bypass flow capacity when needed.
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 enables a structurally simple and versatile filter device that effectively manages fluid flow, maintaining cleanliness during normal operation and preventing contamination when fluid pressure exceeds a threshold, ensuring reliable filtration in various orientations.
Implementation Method 1
the valve body of which is force-actuated into the closed position by a spring element
Implementation Method 2
a hollow cylindrical filter element that is received in a filter housing and through which the fluid to be cleaned flows radially
Implementation Method 3
the valve body seals a bypass opening between the interiorly disposed chamber in the filter element and the space surrounding the filter element
Data Source
AI summary
A filter device includes a hollow cylindrical filter element and a bypass valve, the valve body of which rests against an adapter piece that is arranged on the end face of the filter element. At least one bypass opening is integrated into the adapter piece.