Valve Assembly Transverse Channel Cold Forming
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Solution Overview
Problem
Conventional valve assemblies require complex manufacturing steps, such as drilling or punching, to create a transverse channel in the valve housing, which increases production time and complexity.
Innovation Solution
The transverse channel is designed as a longitudinal slot integrated into the valve housing during shaping, allowing for single-step production through cold forming, eliminating the need for additional reworking and enabling automated manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a transverse channel is introduced by drilling or punching after valve housing manufacturing, then the channel can be created in the valve housing, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The transverse channel is formed as an integrated feature of the valve housing during the initial shaping process rather than being added later. The housing is pre-formed with the transverse channel as part of its structure, eliminating the need for subsequent drilling or punching operations.
Solution Approach 2:
The formation of the transverse channel is merged with the valve housing shaping process. Instead of separate manufacturing steps for creating the housing and then adding the channel, both are created simultaneously in a single operation during the cold forming process.
2Productivity
If drilling or punching is used to create the transverse channel, then the channel is formed, but production time increases due to multiple manufacturing steps
Solution Approach 1:
The transverse channel is pre-formed as an integral part of the valve housing structure during the initial shaping operation. This preliminary formation eliminates the need for time-consuming post-manufacturing drilling or punching steps, significantly reducing total production time.
Solution Approach 2:
The valve housing is formed continuously in a single cold forming operation that simultaneously creates the housing structure and the transverse channel. This continuous process eliminates interruptions and separate manufacturing steps, maximizing production efficiency.
3Ease of manufacture
If the transverse channel is formed after housing manufacturing, then the channel can be added, but additional reworking and post-processing are required
Solution Approach 1:
The transverse channel formation is merged into the valve housing shaping process itself. The cold forming operation simultaneously creates both the housing structure and the transverse channel feature, eliminating the need for separate post-processing steps for channel creation.
Solution Approach 2:
The transverse channel is preliminarily formed as an integral feature during the initial housing shaping. This preliminary action ensures the channel is ready for use without requiring any additional reworking or post-processing operations on the housing.
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
This approach simplifies the production process, reduces manufacturing time, and ensures efficient, low-resistance flow through the channels while maintaining a secure sealing and fastening mechanism.
Implementation Method 1
the valve seat body 3 is pressed in sections at the lower end of the tubular valve housing 2. To limit the press-in depth, the valve seat body 3 has an axial stop 4 which is supported on the lower end of the wall section delimiting the transverse bore 1 on the valve housing 2.
Implementation Method 2
the valve seat body 3 has a projection 5 on the side facing away from the valve housing 2, which is fastened in a liquid-tight manner in a valve receiving bore 6 by means of a press fit.
Implementation Method 3
the valve housing 2 is securely fixed in a valve-receiving body 7 by means of an external caulking of the housing material delimiting the valve-receiving bore 6 under the action of an axial force in the direction of the valve-seat body 3.
Implementation Method 4
The longitudinal slots simultaneously produced by cold forming during the production of the valve housing 2 are rounded in an arc shape in their closed end region, so that mechanical stress peaks are avoided and low-resistance flow through the transverse channels 1 is ensured.
Data Source
Figure 1~2
AI summary
The invention relates to a valve assembly with at least one transverse channel (1) in a substantially tubular valve housing (2), said assembly comprising a valve closing member (7) that is positioned in the valve housing (2) and that co-operates with a valve seat situated on a hollow cylindrical valve seat body (3) that is fixed in the valve housing (2), the valve seat body being attached to one end of the valve housing (2). To simplify the production process, the transverse channel (1) is formed by a longitudinal slot which extends in some sections of the valve housing (2) from a starting point at the end of said housing (2) in the longitudinal direction of the latter.