Electromagnetic Shock Pump Valve Positioning via Segmented Piston
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Solution Overview
Problem
Electromagnetic shock pumps face failure risks due to high positioning requirements between the pressure relief valve and the water-sucking valve, leading to maintenance challenges and increased costs.
Innovation Solution
An electromagnetic shock pump design featuring a piston with a sealing member that moves synchronously within the valve body, creating a sealed space with a pressure relief valve and a water-sucking valve, where the valves are not in direct contact, reducing the need for precise positioning and minimizing maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a mechanical force transmission mechanism is used among the piston, second-stage valve rubber head, and first-stage valve rubber head, then the pump can transmit mechanical force effectively, but the positioning requirement between the first-stage valve rubber head and second-stage valve rubber head becomes very high, leading to failure risk
Solution Approach 1:
The patent divides the valve system into separate stages with the first-stage valve rubber head and second-stage valve rubber head positioned at different locations. The force transmission is segmented through the piston rod connecting the piston to the second-stage valve rubber head, allowing each component to be positioned independently rather than requiring precise relative positioning between adjacent valve heads.
Solution Approach 2:
The piston rod acts as an intermediary element that transmits mechanical force from the piston to the second-stage valve rubber head. This intermediary mechanism allows force transmission without requiring direct contact or precise positioning between the first-stage valve rubber head and second-stage valve rubber head, thereby reducing positioning requirements.
2Reliability
If the first-stage valve rubber head and second-stage valve rubber head are positioned with high precision, then the pump operates reliably, but the manufacturing complexity and cost increase
Solution Approach 1:
By segmenting the valve system into separate stages with spatial separation, the patent reduces the complexity of positioning. Each valve head can be manufactured and positioned independently in its own optimal location, rather than requiring complex coordinated positioning of multiple valve heads in close proximity.
Solution Approach 2:
The patent utilizes spatial arrangement in three-dimensional space to resolve positioning issues. By positioning the first-stage and second-stage valve rubber heads at different locations along the pump axis and using the piston rod for force transmission, the design moves from a two-dimensional close-proximity arrangement to a three-dimensional distributed arrangement, simplifying manufacturing and assembly.
3Force
If the valves are in direct contact during operation, then the mechanical force transmission is direct, but adhesion issues occur leading to maintenance problems
Solution Approach 1:
The piston rod serves as an intermediary that transmits force from the piston to the second-stage valve rubber head without requiring direct contact between the first-stage and second-stage valve rubber heads. This eliminates adhesion issues that would occur if the valve heads were in direct contact, while still maintaining effective force transmission.
Solution Approach 2:
The patent extracts the force transmission function from direct valve head contact and relocates it to the piston rod mechanism. By taking out the direct contact between valve heads and using the piston rod as the primary force transmission element, the design eliminates adhesion problems while maintaining force transmission efficiency.
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 design ensures the electromagnetic shock pump operates effectively by reducing the risk of failure due to inaccurate positioning, lowering maintenance needs, and significantly saving costs by avoiding direct contact and adhesion issues between the pressure relief and water-sucking valves.
Implementation Method 1
A coil voltage applied to an outer coil generates drive forces for the piston
Implementation Method 2
a ferromagnetic piston is arranged axially displaceable. A coil voltage applied to an outer coil generates drive forces for the piston
Implementation Method 3
a flow path which can be shut off by a check valve in a flow direction being arranged in the piston, and a second check valve being arranged on a delivery-side pump outlet
Data Source
Figure 1
Figure 2
AI summary
An electromagnetic shock pump, comprising: a valve body (11), provided with a center hole; a pressure relief valve, provided within the center hole; a piston (13), comprising a piston head (131) provided within the center hole, an end of the free end of the piston head (131) is provided with a sealing member (23), wherein the sealing member (23) presses against a hole wall of the center hole, and the sealing member (23) is able of moving along an axial direction of the center hole in a synchronized manner with the piston head (131); a water-sucking valve, provided on the piston head (131), and provided opposite to the pressure relief valve; wherein, the pressure relief valve, the valve body (11), the piston head (131), the sealing member (23) and the water-sucking valve form a sealed space (99). The pressure relief valve and the water-sucking valve are not in direct contact. Thereby, the positioning requirements of the pressure relief valve relative to the water-sucking valve are low, and as a result the electromagnetic shock pump will not undergo failure caused by inaccurate positioning of the pressure relief valve relative to the water-sucking valve, thereby ensuring effectiveness of the electromagnetic shock pump and reducing the rate of maintenance.