Solenoid-operated diesel injectors for low-viscosity liquid and gaseous fuels
Bibliographic record
Abstract
Alternative fuels such as liquid dimethyl ether have low viscosity that result in fuel leakage in diesel components, while natural gas and hydrogen are too compressible for diesel pressure operated injection. A new solenoid-operated injector design for diesel alternative fuels is described. Less force is required to open the injector because of the pressure-balanced design by having the pressure across the needle guide the same. A pulling rod is attached between the electrical solenoid core and needle guide. Activating the solenoid produces the electromagnetic force to pull open the injector needle. Circulation of the fuel through the common rail housing the solenoids is used to prevent the coils from excessive heat that tends to reduce the solenoid force. On injector closing, the elasticity of the pulling rod provides relative motion damping so that the core's inertia force is reduced as it is transferred to the needle. This results in lower impact forces between the needle and its seat and lessens their wear. Also, the magnitude of the needle seat bounce is attenuated and results in less post-injection and emission pollutants. The study of needle-to-seat impact forces has been modelled for computer simulation and has been verified with experiments.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".