Test Bench Cooling Circuit for Fluid Pumps
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Solution Overview
Problem
Existing test stands for fluid pumps and fluid injectors face inefficiencies in cooling the injection fluid, particularly during high-pressure testing, as methods like tap water or air cooling are either environmentally impactful or insufficient in cooling performance.
Innovation Solution
A closed cooling circuit with a fluid coolant that circulates through a heat exchanger in the test stand, allowing for efficient heat transfer and enhanced cooling performance, which can be supplemented by external water cooling during peak loads, using a liquid coolant like water, and controlled by temperature sensors and valves for precise temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If tap water is used for cooling, then cooling performance is achieved, but environmental impact and water consumption increase
Solution Approach 1:
The patent implements a closed cooling circuit where the coolant is continuously circulated and reused rather than being discarded after a single use. The coolant absorbs heat from the injection fluid in the heat exchanger and returns to the pump to be reused, eliminating water consumption and environmental discharge issues while maintaining effective cooling performance.
2Object-affected harmful factors
If air cooling is used, then environmental friendliness is improved, but cooling performance becomes insufficient
Solution Approach 1:
The patent transitions from air cooling to liquid coolant circulation through a closed circuit. The hydraulic system uses a pump to circulate coolant through the heat exchanger, enabling significantly higher cooling performance compared to air cooling while maintaining environmental friendliness through the closed-loop reuse of the coolant.
3Loss of substance
If a closed cooling circuit is used, then environmental sustainability and cost-effectiveness are improved, but device complexity increases
Solution Approach 1:
The coolant serves multiple functions within the closed circuit: it absorbs heat from the injection fluid in the heat exchanger, transports this heat to the cooling element, and returns to the pump for reuse. This multi-functional circulation system achieves environmental sustainability and cost-effectiveness while managing complexity through a unified, integrated design.
4Temperature
If external water cooling is added for peak loads, then cooling capability during high demand is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements a dynamic cooling system where the external water cooling element can be activated or deactivated based on thermal load conditions. During normal operation, the closed circuit handles cooling requirements; during peak loads, the external water cooling element is engaged to provide additional cooling capacity. This dynamic approach allows the system to scale cooling capability according to demand while managing complexity through conditional operation rather than always-on redundant systems.
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 improved cooling performance, environmental sustainability, and cost-effectiveness by reusing the coolant, allowing for independent operation without a water connection and enhancing the accuracy and reproducibility of test results.
Implementation Method 1
a first heat exchanger which is designed and arranged in the fluid line in such a way that it is relieved of the fluid flow in the fluid line and the coolant circulating in the cooling circuit during operation is flowed through in such a way that a heat transfer between the fluid and the coolant is possible
Implementation Method 2
heat transfer between the fluid and the coolant
Implementation Method 3
the coolant circulating in the cooling circuit during operation is flowed through
Data Source
AI summary
A test bench (1) for testing a fluid pump (4) and/or a fluid injector (8) has a fluid-pump receiving apparatus (2) for receiving a fluid pump (4); a fluid-injector receiving apparatus (6) for receiving a fluid injector (8); a fluid line (5) which connects the fluid-pump receiving apparatus (2) to the fluid-injector receiving apparatus (6) hydraulically and makes a fluid flow possible during operation from the fluid pump (4) to the fluid injector (8); a closed cooling circuit (9), through which a coolant circulates during operation; and a first heat exchanger (10) which is configured and arranged in the fluid line (5) in such a way that the fluid stream and the coolant stream flow through it during operation in such a way that a heat transfer is possible between the fluid stream and the coolant stream.