Fluid Injector Testing System with Segmented Receptacle
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Solution Overview
Problem
Current fluid injector testing methods rely on visual inspection, which is inadequate for accurately determining the proportion of fluid hitting the intended target, lacking precision in quality control.
Innovation Solution
A testing system comprising a receptacle with a target outlet and a runoff outlet, along with fluid-quantity measuring devices and a controller to measure and calculate the proportion of fluid injected into the target, allowing for precise determination of injection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual inspection is used to test fluid injectors, then the testing process is simple and quick, but the measurement precision of fluid proportion is insufficient
Solution Approach 1:
The receptacle is divided into distinct functional zones: a target outlet region for receiving accurately injected fluid and a runoff outlet region for receiving misplaced fluid. This segmentation allows separate measurement of fluid proportions, enabling precise determination of injection accuracy while maintaining a relatively simple overall structure.
Solution Approach 2:
Fluid collection devices are introduced as intermediary components between the receptacle outlets and the measurement system. These devices collect fluid from specific outlets and transfer it to measurement instruments, enabling accurate quantification of fluid proportions without requiring direct complex integration between the receptacle and measurement devices.
2Measurement precision
If visual gauging is used to determine if fluid hit the target, then the testing process is easy to operate, but the accuracy of ascertaining fluid proportion is inadequate
Solution Approach 1:
The system automatically measures fluid quantities through integrated sensors and collection devices that directly connect to the receptacle outlets. The fluid proportion determination is performed automatically by the controller based on measurements from the collection devices, eliminating the need for manual visual assessment while maintaining operational simplicity through automated processes.
3Measurement precision
If a receptacle with separate target and runoff outlets is used, then the fluid proportion can be accurately determined, but the device complexity increases
Solution Approach 1:
The fluid collection devices are integrated with the receptacle structure, where collection channels are formed within or attached to the receptacle body. This merging reduces the number of separate components and simplifies the overall device structure while maintaining the capability for accurate fluid proportion measurement through separate target and runoff outlet collection.
Data Source
AI summary
An injector testing system includes a testing rig having a receptacle and an injector mounting structure. The receptacle has an inlet for receiving fluid injected by an injector, a target outlet for receiving at least a portion of fluid injected through the inlet, and a runoff outlet for receiving fluid missing the target outlet. At least one fluid-quantity measuring device fluidly connected to at least one of the target and runoff outlets measures a quantity of fluid having flowed thereto. A controller receives signals representative of (i) a quantity of fluid having flowed to the at least one fluid-quantity measuring device via the target outlet, and (ii) a quantity of fluid having flowed to the at least one fluid-quantity measuring device via the runoff outlet or both of the runoff outlet and the target outlet. Based on these quantities, a proportion of fluid injected into the target outlet is determined.