Gear Pump Gasket Elastic Retention and Shape Differentiation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gear pumps and motors face issues with gasket leakage and misalignment during manufacturing due to insufficient elastic deformation and increased costs from dyeing or complex shape requirements for material differentiation.
Innovation Solution
The implementation of gaskets with quadrangle or circular shapes that are symmetrical to their diagonal lines or circular shapes, respectively, which utilize elastic restoring forces to securely fit into gasket grooves, preventing leakage and allowing for easy directional alignment without the need for coloring or complex manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shape of the gasket in a state where an external force is not applied is made to be asymmetrical to the shape of the gasket groove, then material differentiation is achieved, but the gasket may fall out during manufacturing and directional matching is required
Solution Approach 1:
The patent applies asymmetry in reverse - it uses symmetrical shapes (circular or quadrangle with diagonal symmetry) for gaskets made of different materials. This symmetrical design allows gaskets to be easily identified by their shape while eliminating the need for directional matching during assembly, thus resolving the contradiction between material differentiation and assembly ease
2Reliability
If dye is mixed to the main raw material of the gasket to discern between different materials, then material differentiation is achieved, but gasket strength is reduced and manufacturing cost increases
Solution Approach 1:
The patent replaces chemical dyeing with geometric shape differentiation. Instead of adding dye to raw materials which compromises strength and increases cost, the invention uses distinct symmetrical shapes (circular for nitrile rubber, quadrangle for flurorubber) to visually identify different materials, thereby maintaining gasket strength while achieving material differentiation
3Reliability
If the gasket is made to stick closely to the gasket groove due to elastic restoring force, then gasket stability during manufacturing is improved, but the gasket material properties must be precisely controlled
Solution Approach 1:
The patent utilizes elastic restoring force as a physical parameter to achieve gasket stability during manufacturing. By designing gaskets with appropriate elasticity that allows them to deform during insertion and then restore to stick closely to the groove, the invention achieves reliable retention without requiring complex material specifications or additional retention mechanisms
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 ensures gasket stability during manufacturing, reduces the risk of leakage, and allows for material differentiation based on shape, thereby preventing strength reduction and cost increases associated with dyeing, while simplifying the assembly process.
Implementation Method 1
the gasket sticks closely to the gasket groove due to an elastic restoring force when inserted to the gasket groove
Data Source
AI summary
The disclosure allows a gasket to be securely attached to a gasket groove, reduces a time for an operation of attaching the gasket to the gasket groove, and allows differentiation between gaskets of different materials. A gear pump or a motor, including gears which mesh together and form a pair, axes for pivotally supporting the gears, a body having a gear storing chamber internally for placing the gears, a cover for covering the gear storing chamber of the body, is characterized in that a gasket is disposed between the body and the cover, wherein the gasket is insertable to a gasket groove disposed on at least one of the body and the cover, the gasket groove having a shape surrounding the gear storing chamber, and the gasket sticks closely to the gasket groove due to an elastic restoring force when inserted to the gasket groove.