Injection-Molded Valve Block for Pump Module Assembly
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Solution Overview
Problem
Existing pump modules for debridement using fluid jets are complex and costly to produce, lacking a simple and cost-effective design that maintains essential functionality for pumping operations.
Innovation Solution
A pump module design featuring a valve block with integrated inlet and outlet valves, a disk-shaped cover element, and a cylinder insert, all produced through injection molding, which forms flow passages and accommodates valves without requiring finishing work, ensuring a fluid-tight connection and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pump modules are designed with traditional valve blocks requiring finishing work, then manufacturing precision is improved, but ease of manufacture deteriorates and production cost increases
Solution Approach 1:
The patent replaces traditional mechanical machining processes with injection molding technology to manufacture the valve block. The injection-molded valve block integrates flow passages and valve seats directly into the molded structure, eliminating the need for subsequent finishing work while maintaining functional precision. This substitution of manufacturing methodology resolves the contradiction between manufacturing precision and ease of manufacture.
2Reliability
If pump modules use complex assembly procedures, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent combines multiple components into an integrated injection-molded valve block structure. The flow passages, valve seats, and external threading are all formed as a single integrated component during injection molding, eliminating the need for separate assembly steps. This merging of functions into a single manufactured part maintains reliability while dramatically simplifying the manufacturing process.
3Reliability
If traditional valve block designs are used, then fluid-tight connection is ensured, but device complexity increases
Solution Approach 1:
The injection-molded valve block performs multiple functions simultaneously: it provides fluid-tight sealing through integrated valve seats, creates flow passages through molded-in channels, and offers mounting capabilities via external threading. This multi-functional integration reduces device complexity while maintaining fluid-tight connection reliability, as a single component replaces what would traditionally require multiple separate parts.
Data Source
AI summary
A pump module and a device for producing a fluid jet with a pump module are disclosed. In an embodiment the pump module may include a pump housing in which at least one pump piston is mounted in a reciprocatingly movable manner and is provided with at least one sealing element which during a pumping operation interacts with a cylinder. For creating such a pump module producible in a simple manner and nevertheless exhibiting the functionality necessary for the pumping operation, embodiments disclose a valve block, which receives at least one valve associated with the cylinder, wherein the cylinder is sealed against the valve block. Furthermore, a cover element may abut against the valve block on a side opposite to the cylinder and between itself and the valve block forms an inlet passage leading to the cylinder and/or an outlet passage communicating with the cylinder.