Stamped Flexural Non-Return Valve Assembly
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Solution Overview
Problem
Existing non-return valves for gas-carrying lines in internal combustion engines require high assembly effort, making them costly and unsuitable for series production, especially in multi-flow configurations.
Innovation Solution
A non-return valve design featuring a housing with a clamping groove for positive and non-positive mounting of the valve closure member, combined with a thermally resilient elastomer coating and optional connections via rivets or screws, simplifies assembly and ensures effective sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-flow check valve is designed with multiple valve plate elements and individual valve stop elements, then the sealing effectiveness is improved, but the assembly effort and manufacturing complexity increase significantly
Solution Approach 1:
The patent combines multiple valve plate elements and valve stop elements into a single integrated stamped and bent metal part. This merging of components maintains the multi-flow sealing functionality while dramatically reducing the number of separate parts that need to be assembled, thereby resolving the contradiction between sealing effectiveness and assembly complexity
Solution Approach 2:
The single stamped and bent metal part serves multiple functions simultaneously: it acts as both the valve plate elements that seal the valve openings and the valve stop elements that limit their travel. This multi-functionality eliminates the need for separate components, reducing assembly effort while maintaining reliable sealing
2Reliability
If traditional check valve designs with multiple separate components are used, then adequate sealing can be achieved, but the production cost increases due to high assembly requirements
Solution Approach 1:
By merging multiple valve components into a single stamped and bent metal part, the patent reduces the number of assembly operations required. This directly lowers production costs while maintaining adequate sealing through the integrated design of valve plates and stops
Solution Approach 2:
The elastomer coating on the single metal part provides self-sealing functionality, where the material properties of the coating itself ensure adequate sealing without requiring complex mechanical sealing structures. This simplifies manufacturing while maintaining reliability
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 design significantly reduces assembly work, making the valve more cost-effective and suitable for series production while maintaining effective sealing and damping properties in gas-carrying lines.
Implementation Method 1
The valve closure member can advantageously have an elastomer coating. In addition, at least the area of the valve seat of the housing can also have a thermally resilient elastomer coating in order to ensure good sealing in the closed state.
Implementation Method 2
a circumferential sealing member 11 is provided. In addition, the housing 3 can be made of aluminum or a duroplast, for example, with the area of the valve seats being coated with a thermally resilient elastomer in order to ensure optimum sealing.
Data Source
Figure 1~2
AI summary
The non-return valve (1) has a housing (3) including a valve seat with a valve opening (2), a valve plate element (5) i.e. flat spring element, and a valve stopper element (6). The plate and stopper elements are formed as a single-part valve closure body (4) that is designed as a stamped-flexural part. The housing has a clamping groove (8) in which the closure body is form-fittingly or force-fittingly supported. The closure body is supported with a passage section (7) in the groove and connected with a connection pin (10) of the housing over screws (9).