Valve Assembly Detent Mechanism for Position Fixing
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Solution Overview
Problem
Existing valve arrangements lack a simple and detachable method to fix specific switching positions of the valve member, which limits flexibility and compatibility with different types of mechanically actuated valves.
Innovation Solution
The integration of a latching mechanism with coaxial latching elements and spring-actuated structures allows for the releasable fixation of valve positions independently of the valve member, enabling the use of the same actuating device across various valve types, including seat and piston slide valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a latching mechanism is added to fix valve positions, then the reliability and operational stability are improved, but the device complexity increases
Solution Approach 1:
The latching mechanism is integrated into the existing actuating device by combining the latching elements with the actuating member components. The first latching element is incorporated into the actuating member body, and the second latching element is integrated with the cam body, merging the latching function with the existing actuation structure rather than adding a completely separate mechanism.
Solution Approach 2:
The latching mechanism is designed to be universally applicable to different valve types (seat valves and piston slide valves) through the same actuating device. The latching elements and structures are configured to work with various valve members without requiring valve-specific modifications, enabling one actuating device design to serve multiple valve applications.
2Adaptability or versatility
If the latching mechanism is made adaptable to different valve types, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The latching mechanism is designed to be universally applicable to different valve types (seat valves and piston slide valves) through the same actuating device. The latching elements and structures are configured to work with various valve members without requiring valve-specific modifications, enabling one actuating device design to serve multiple valve applications.
Solution Approach 2:
The latching mechanism is divided into independent modular components: the first latching element integrated into the actuating member, the second latching element on the cam body, and the spring means as a separate force application component. This segmentation allows for flexible configuration and adaptation to different valve types while maintaining a consistent fundamental design.
3Reliability
If the latching elements are constantly pressed against each other by spring means, then the reliability of latching engagement is improved, but the use of energy increases
Solution Approach 1:
The latching mechanism uses spring means to provide dynamic, constant axial pressing force between the first and second latching elements, ensuring reliable engagement while allowing the system to adapt to operational conditions. The spring force is applied only in the axial direction to maintain contact, rather than requiring continuous high force in all directions.
Solution Approach 2:
The spring means automatically maintains the latching elements in constant contact, providing self-regulating engagement pressure. The mechanism uses the spring's inherent elastic energy to ensure reliable latching without requiring external power sources or additional actuation forces to maintain the latched state.
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 solution provides a flexible and adaptable mechanism for fixing valve positions, allowing for easy conversion between different operating modes and valve types without direct manipulation of the valve member, enhancing the versatility and operational reliability of the valve arrangement.
Implementation Method 1
pressed axially against one another by spring means
Data Source
Figure 1~10
Figure 2
Figure 3
AI summary
A valve arrangement is proposed comprising at least one mechanically actuated valve (1) with a valve element (7) slidably mounted in a valve housing (3), which can be switched between different switching positions by means of an actuating element (27) rotatable about a pivot axis (28). To detachably fix at least one switching position of the valve element (7), the valve includes a detent mechanism (54) with two detent elements (55, 56) coaxial with the pivot axis (28), the detent elements bearing against each other with their opposing detent means (57, 58). When the actuating element (27) is rotated, the detent means (57, 58) slide past each other, whereby at least one of the two detent elements (55, 56), which is preloaded by spring means (66), can perform an axial stroke movement (63).