Valve Cartridge Assembly with Integrated Seating for Pump Systems
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Solution Overview
Problem
Existing valve cartridge assemblies for high-pressure fluid pumps face challenges in efficiently managing fluid flow between low and high-pressure regions due to limitations in valve design and sealing mechanisms, leading to suboptimal performance and leakage.
Innovation Solution
A valve body with integrated inlet and outlet channels, suction and discharge valve assemblies featuring continuous seating surfaces and elastomeric contact members, which facilitate seamless fluid flow and sealing between low and high-pressure areas within the pump system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional valve designs with separate inlet and outlet channels are used, then manufacturing is simpler, but fluid flow efficiency and sealing performance deteriorate
Solution Approach 1:
The patent merges multiple channels (inlet channels, outlet channels, main channels) into a single integrated valve body structure with continuous seating surfaces. This integration eliminates the need for separate valve components and complex assembly, while improving fluid flow efficiency through optimized channel geometry and seamless transitions between pressure zones.
Solution Approach 2:
The valve body is designed as a multi-functional component that simultaneously performs fluid distribution, pressure containment, and sealing functions. The continuous seating surface serves multiple purposes: guiding valve closure, maintaining sealing contact, and directing fluid flow between different pressure regions without requiring additional sealing components.
2Reliability
If valves with through channels in seating surfaces are used, then manufacturing is easier, but sealing performance and leakage control worsen
Solution Approach 1:
The valve seating surface is designed with non-uniform geometry featuring a continuous profile without through channels. This local quality variation creates optimal sealing contact zones where the valve closure member makes intimate contact with the seating surface, preventing leakage while maintaining manufacturing feasibility through conventional machining or casting processes.
Solution Approach 2:
The continuous seating surface acts as an intermediary element between the valve closure member and the fluid pressure zones. It mediates the transition from high-pressure to low-pressure regions while maintaining sealing integrity, eliminating the need for through channels that would compromise the sealing interface.
3Productivity
If simple valve configurations are used, then device complexity is reduced, but fluid flow management and pressure control deteriorate
Solution Approach 1:
The fluid flow path is segmented into distinct zones (inlet channels, main channels, outlet channels) with defined functional boundaries. Each segment is optimized for its specific purpose: inlet channels draw fluid from the low-pressure region, main channels contain and direct high-pressure fluid, and outlet channels deliver fluid to the discharge manifold. This segmentation enables efficient fluid management without excessive complexity.
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
Enhances fluid flow management by ensuring efficient fluid transfer between low and high-pressure regions, reducing leakage and improving overall pump performance through precise sealing and directional control.
Implementation Method 1
a first elastomeric member positioned immediately adjacent the large diameter portion
Data Source
AI summary
A pump system includes a pump housing defining a plurality of pump bores, a plurality of pumping members, and a plurality of valves positioned within the pump housing. Each of the valves includes a valve body defining a plurality of inlets, arranged to receive a low pressure fluid, a suction valve coupled to the valve body and movable between a closed position and an open position, the suction valve including a suction valve closing member having a conical contact surface having a large diameter portion, and a first elastomeric member positioned adjacent the large diameter portion, and a discharge valve coupled to the valve body and movable between a closed position and an open position, the discharge valve including a discharge valve closing member having a conical contact surface having a large diameter portion, and a second elastomeric member positioned immediately adjacent the large diameter portion.