Multi-Temperature Shared Oil System for Generator and Engine Gearbox Cooling
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Solution Overview
Problem
Existing heat exchanger systems in aircraft applications add complexity, expense, and weight, making them undesirable for cost-sensitive, weight-sensitive, and space-limited environments.
Innovation Solution
A shared oil system with a heat exchanger system that provides oil at different temperatures to a generator and an engine gearbox, reducing complexity and weight by integrating a hydraulic pump, reservoir, and multiple heat exchangers to meet specific temperature criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional separate heat exchanger systems are used for generator and engine gearbox, then each component can maintain its required temperature, but the system adds complexity, expense, and weight
Solution Approach 1:
The patent combines multiple heat exchanger functions into a single integrated heat exchanger system that serves both the generator and engine gearbox. This unified system uses one coolant flow to cool both components, eliminating the need for separate heat exchangers and reducing overall system complexity while maintaining temperature control for both components.
Solution Approach 2:
The integrated heat exchanger system performs multiple cooling functions simultaneously - it cools both the generator and engine gearbox using a single coolant circuit. This multi-functional approach allows one system to replace what would traditionally require multiple separate systems, reducing complexity while maintaining reliability.
2Reliability
If traditional separate heat exchanger systems are used for generator and engine gearbox, then each component can maintain its required temperature, but the system adds expense and weight
Solution Approach 1:
The patent combines multiple heat exchanger functions into a single integrated heat exchanger system that serves both the generator and engine gearbox. This unified system uses one coolant flow to cool both components, eliminating the need for separate heat exchangers and reducing overall system complexity while maintaining temperature control for both components.
3Reliability
If traditional separate heat exchanger systems are used for generator and engine gearbox, then each component can maintain its required temperature, but the system adds expense and weight
Solution Approach 1:
The patent combines multiple heat exchanger functions into a single integrated heat exchanger system that serves both the generator and engine gearbox. This unified system uses one coolant flow to cool both components, eliminating the need for separate heat exchangers and reducing overall system complexity while maintaining temperature control for both components.
Solution Approach 2:
The integrated heat exchanger system performs multiple cooling functions simultaneously - it cools both the generator and engine gearbox using a single coolant circuit. This multi-functional approach allows one system to replace what would traditionally require multiple separate systems, reducing complexity while maintaining reliability.
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
The system achieves reduced weight, cost, and complexity while maintaining optimal oil temperatures for both the generator and engine gearbox, extending the generator's life and minimizing redundant components.
Implementation Method 1
a heat exchanger system in fluid communication with the hydraulic pump, a generator, and an engine gearbox
Data Source
Figure 1
Figure 2
AI summary
A fluid delivery system is provided including a reservoir (105) including oil, a hydraulic pump (110) in fluid communication with the reservoir (105), and a heat exchanger system (123). The heat exchanger system (123) is in fluid communication with the hydraulic pump (110), a generator (135), and an engine gearbox (137). The hydraulic pump (110) is configured to deliver the oil to the heat exchanger system (123). The heat exchanger system (123) is configured to provide the oil according to first temperature criteria to the generator (135) and provide the oil according to second temperature criteria to the engine gearbox (137).