Oil Separator Valve Element Wear Reduction via Insert Part
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Solution Overview
Problem
Oil separator units with check valves experience wear due to engine pressure pulsations and vibrations, leading to potential detachment and high maintenance costs.
Innovation Solution
The valve member is held on an insert part that can be preassembled and inserted into a valve housing, with the insert part designed to reduce wear and secured using form or material locking mechanisms, allowing for easier assembly and reduced wear on the valve element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve element is directly fixed in the valve housing, then the assembly is simple, but the valve element is subject to wear and may detach due to pressure pulsations and vibrations
Solution Approach 1:
The check valve unit is divided into three separate components: the valve housing, the insert part (which can be a ring, sleeve, or plate), and the valve element. The insert part is inserted into the valve housing and provides wearing surfaces for the valve element, while the valve element is retained by the insert part. This segmentation allows each component to be optimized independently and reduces wear on the valve element by providing a dedicated wear surface.
Solution Approach 2:
The insert part acts as an intermediary component between the valve housing and the valve element. It provides wearing surfaces for the valve element and retention features to prevent detachment, while being easily replaceable and optimizable for specific applications. The insert part mediates the interaction between the housing and valve element, reducing wear and improving reliability.
2Reliability
If the valve element is held directly on the valve housing surfaces, then production costs are low, but wear on the valve element is high due to friction from pressure pulsations and vibrations
Solution Approach 1:
The wear surface functionality is separated into a distinct insert part that can be optimized for low wear. The insert part can be made from materials or with surface treatments specifically designed to reduce friction and wear, while the valve housing maintains its primary structural function. This segmentation allows specialized wear-resistant materials or coatings to be applied only where needed.
Solution Approach 2:
The insert part is pre-assembled with the valve element before installation into the valve housing. This preliminary assembly allows for precise positioning and ensures proper alignment of the valve element with the wearing surfaces of the insert part, reducing misalignment wear during operation.
Data Source
AI summary
In order to improve an oil separator unit, in particular an oil separator unit provided for vehicle drives, comprising an oil separator housing with a drainage system and a check valve unit which is formed from a valve seat and a valve element which comprises a valve member of an umbrella-like design and consisting of an elastomer, in such a manner that it can be produced as inexpensively as possible, on the one hand, and, on the other hand, the wear on the valve element is, however, considerably reduced or occurs to as low a degree as possible, it is suggested that the valve member of the valve element be held on an insert part and that the insert part be insertable, for its part, into an insert part receptacle in a valve housing.