Lubricant Flow Mixing Control for Target Temperature and Volume
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Solution Overview
Problem
Existing methods for dispensing lubricating fluids to mechanical components require complex individual heating and cooling to achieve optimal viscosity and temperature, leading to increased measurement tolerances and complexity, especially when supplying multiple components.
Innovation Solution
A method and system that calculate and regulate the partial volume flows of input fluids based on the actual and target values of the output fluid's volume flow and temperature, reducing the need for multiple measurements and independent control circuits, allowing for precise adjustment of output fluid flow to predetermined targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual heating and cooling of individual lubricant flows is used to supply multiple components with optimal temperature and viscosity, then the lubrication quality is improved, but the system complexity becomes disproportionately high
Solution Approach 1:
The system segments the lubrication supply by providing individual temperature and flow control for each component through separate control loops, while using a common reference measurement point to reduce overall system complexity
Solution Approach 2:
A common reference measurement point acts as an intermediary for all control loops, allowing individual component control while sharing the measurement infrastructure to reduce complexity
2Manufacturing precision
If separate control loops with independent measurements are used for each input fluid partial flow, then the volume flow and temperature control precision is improved, but the measurement tolerances and error accumulation increase
Solution Approach 1:
The patent merges the measurement reference point for all control loops into a single common location, combining the measurement infrastructure while maintaining separate control loops for precision
3Adaptability or versatility
If multiple independent control loops are implemented for multiple input fluids, then the flexibility and adjustability of the system is improved, but the measurement effort and control complexity increase
Solution Approach 1:
The common reference measurement point serves multiple control loops simultaneously, providing a universal measurement infrastructure that supports flexible control of multiple input fluids without proportionally increasing complexity
Data Source
Figure 1~2
AI summary
The invention relates to a method for outputting an output fluid flow (Qout), in particular a lubricating fluid flow, with a predetermined target volume flow (Qsoll) and a predetermined target temperature (Tsoll), which consists of at least two input fluids (F1, F2), each with an adjustable partial volume flow (Q1) or (Q2) and a determinable temperature (T1) or (T2).(T2), comprising the steps: - Acquiring an actual volume flow rate (Qist) and an actual temperature (Tist) of the fluid flow (Qout), - Calculating the target partial volume flow rates (Q1 target, Q2 target) to be set based on the target volume flow rate (Qsoll) and the target temperature (Tsoll) of the fluid flow (Qout) and based on the temperatures (T1, T2) of the input fluids (F1, F2), - Calculating actual partial volume flow rates (Q1 actual, Q2 actual) based on the actual volume flow rate (Qist) and the actual temperature (Tist) of the fluid flow (Qout) and based on the temperatures (T1, T2) of the input fluids (F1, F2), and - Controlling the partial volume flow rates (Q1, Q2) to the target partial volume flow rates (Q1 target, Q2 target) using the calculated actual partial volume flow rates (Q1 actual, Q2 is).