{ "id": "S-01", "title": "Composition-drift monitor + autonomous replenishment (the moat)", "type": "system", "gap_refs": [ "G3" ], "claim_scaffold": { "independent": [ "A cooling system comprising the composition, a sensor measuring a property indicative of fuel:pump ratio (refractive index, density, dielectric, or optical absorbance), a controller comparing to a setpoint, and a dosing actuator injecting a fuel-rich or pump-rich concentrate to restore the setpoint." ], "dependents": "Dependents: each sensor modality; enhancement-duty coupling; alarm.", "filed_overlap": "Nearest filed: PROV-001 Claim 55 (MANUAL kit only). DISTINCT: closed-loop sensing+control+actuation (the biggest unclaimed moat)." }, "enabling_assets": [ "src/analysis/fractionation_model.py", "docs/IP_COVERAGE_AND_GAPS.md" ], "novelty": { "score": 0.616, "axis": 3, "backends_used": [ "openalex", "crossref" ], "backends_skipped": [ "epo_ops", "patentsview" ], "n_examined": 11, "closest_art": [ { "id": "10.55274/r0010864", "title": "PR-179-13207-R01 Variable Fuel Composition Air Fuel Ratio Control of Lean Burn Engines", "year": 2016, "source": "crossref", "url": "https://doi.org/10.55274/r0010864", "venue": "", "snippet": "This research evaluates the effects of variable fuel quality on a large bore 2 stroke natural gas engine by varying ethane in the fuel gas from 5 to 25%. Four control strategies were evaluated at ~2 g/bhp-hr NOx, constant boost control, trapped gas ratio (TGR) control, trapped equivalence ratio (TER) control and a novel NOx sensor feedback control methodology. These control approaches were evaluated during variations in intake manifold temperature, relative humidity, ethane volume percentage, and engine speed. Emissions, combustion parameters, controller performance, and engine perform", "cited_by": 0, "term_overlap": 0.357 }, { "id": "10.4271/arp4028", "title": "Aircraft/Engine Fuel Pump Two Phase (Slugging Flow) Inlet Performance Test and Evaluation", "year": null, "source": "crossref", "url": "https://doi.org/10.4271/arp4028", "venue": "", "snippet": "<div class=\"section abstract\">\n\n\n<div class=\"htmlview paragraph\">This procedure is intended to apply to all engine or airframe mounted fuel pumps and controls when required by the applicable specification. The procedure recommends a recirculation system similar to ARP492 to control the fuel properties affecting the fluid and its ability to \"release\" fuel vapors and dissolved air and have these \"re-entrained or dissolved\" during the fluid recovery process back to the tank and the original starting conditions.</div></div>", "cited_by": 0, "term_overlap": 0.357 }, { "id": "10.2172/4776349", "title": "THERMAL-STRESS AND STRAIN-FATIGUE ANALYSES OF THE MSRE FUEL AND COOLANT PUMP TANKS", "year": 1962, "source": "crossref", "url": "https://doi.org/10.2172/4776349", "venue": "", "snippet": "", "cited_by": 2, "term_overlap": 0.214 } ], "retrieved": "2026-06-09", "known_blockers": [ "thin prior art per gap analysis" ] }, "certainty": { "key_quantity": "system CHF (W/cm^2, est.)", "lead_proxy": "HFO-1336mzz-Z + vinylene carbonate 70:30 (discovery)", "ci90": [ 40.4, 210.1 ], "median": 105.3, "axis": 3, "calibration": "thermo sigma AAD 0.5%, Tb 0.1C (Phase-B); MC N=20k seed 7" }, "urgency": { "score": 1.0, "axis": 5, "primary_driver": "ECHA_PFAS", "drivers": [ { "driver": "ECHA_PFAS", "nearest_date": "2025-12-31", "citation": "ECHA Annex XV restriction report, submitted 13 Jan 2023 by DE/NL/DK/SE/NO; RAC/SEAC opinion-forming 2023-2025.", "applies_because": "displaces 306-94-5, 307-34-6, 311-89-7, 355-42-0, 756-13-8" }, { "driver": "AI_DC_GROWTH", "nearest_date": "2026-06-09", "citation": "IEA Electricity 2024 / datacenter energy outlooks; rack power densities exceeding air-cooling limits drive two-phase adoption.", "applies_because": "secular demand" } ] }, "proof": { "tier0_consensus": 0.2, "engines_min": 1, "limiting_component": "692-49-9", "md_tier": 2, "axis": 4, "md_grade": "full", "md_seeds": 4, "md_component_sigma": { "692-49-9": { "sigma_mNm": 16.06, "sem": 0.29, "n_seeds": 4 }, "872-36-6": { "sigma_mNm": 38.17, "sem": 1.02, "n_seeds": 4 } }, "md_blend_sigma": { "sigma_298_mNm": 19.63, "dsigma_dT_mNm_per_K": -0.0576 }, "chf_input_rel_uncertainty": 0.25, "tier_status": { "tier0_solver_consensus": "weak", "tier1_md": "full", "tier2_cfd": "pass", "tier3_wetlab": "not_run" } }, "fto_flag": "LOW", "fto_axis": 5, "fto_chart": { "max_overlap": 0.333, "heuristic_risk": "MED", "n_blockers_compared": 2 }, "design_space_cells": null, "property_card": { "epsilon": 12.827, "mu_mPas": 0.0167, "miscibility": "miscible (single phase)" }, "tco": { "vs_air": { "delta_tco_usd_per_mw_median": 1500000.0, "ci90": [ 750000.0, 2600000.0 ], "p_lead_cheaper": 1.0, "confidence_tag": "PLACEHOLDER" }, "vs_novec": { "delta_tco_usd_per_mw_median": 2300000.0, "ci90": [ 1100000.0, 4500000.0 ], "p_lead_cheaper": 1.0, "confidence_tag": "PLACEHOLDER" }, "density_source": "MD_NPT (Modal campaign)" }, "cfd_tier2": { "peak_U_cold": 0.257273, "peak_U_hot": 0.502571, "capillary_sensitivity": 0.512 }, "value_driver": "Per-system royalty on the control loop; the durable moat.", "filing_route": "provisional", "score": { "N": 3, "U": 5, "C": 3, "P": 4, "F": 5, "total": 23, "formula": "2N+U+C+P+F (max 30)" }, "status": "counsel_ready", "expected_casualty": false, "honesty": { "computational_not_measured": true, "no_best_fluid_claim": true, "language_doc_compliant": true } }