{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","research_id":"eoa_inverse_innovation_exp12_light_screen_20260805","cell_id":"objective_weighting_governance__computer_science","search_lanes":{"direct_problem_and_intervention":{"queries":["data center liquid cooling parallel branches flow imbalance balancing valves cold plates","data center liquid cooling flow imbalance parallel cold plates research","liquid cooling parallel branches passive temperature differential pressure priority bias valve"],"source_ids":["SRC1","SRC2"],"no_result_note":null},"synonyms_and_historical_terms":{"queries":["thermostatic balancing valve wax actuator differential pressure coolant valve","self acting temperature control valve differential pressure compensating valve combined","self operated temperature differential pressure controller adjustable setpoint mechanical valve","double throw bimetal thermal valve"],"source_ids":["SRC2","SRC3","SRC4"],"no_result_note":null},"products_practices_and_standards":{"queries":["pressure independent control valve thermostatic differential pressure controller","ASHRAE liquid cooling guidelines flow balancing CDU parallel cold plates","thermostatic valve preset flow rate differential pressure controller emergency full open"],"source_ids":["SRC1","SRC2","SRC3"],"no_result_note":null},"component_combination":{"queries":["patent mechanical valve temperature pressure spring bias lever thermal override valve","thermostatic valve preset flow rate differential pressure controller emergency full open","passive flow compensated temperature controller integrated differential pressure controller"],"source_ids":["SRC2","SRC3","SRC4"],"no_result_note":"No opened source disclosed the complete proposed combination of a temperature force, differential-pressure force, exchangeable priority-bias cartridge, visibly adjustable summing geometry, and independent full-open thermal latch in a compute-cooling branch."}},"sources":[{"source_id":"SRC1","title":"Engineering Liquid Cooling: A Guide to Direct-to-Chip & Cold Plate Operations in Data Centers","publisher":"XD Thermal","url":"https://www.xdthermal.com/engineering-liquid-cooling-a-guide-to-direct-to-chip-cold-plate-operations-in-data-centers/","source_type":"TRADE_PROFESSIONAL","claims_supported":["Parallel cold plates can exhibit flow starvation because coolant follows lower-resistance paths.","Excess flow can reach some servers while hydraulically disadvantaged servers overheat.","Flow-balancing valves, pressure-independent control, pressure-drop budgets, and worst-case-branch testing are recognized mitigations."]},{"source_id":"SRC2","title":"Danfoss Dynamic Valve™","publisher":"Danfoss","url":"https://www.danfoss.com/en/products/dhs/radiator-and-room-thermostats/radiator-thermostats/radiator-valves/dynamic-valve/","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial passive valve combines thermostatic control and differential-pressure regulation in one body.","The valve provides an installer-set maximum-flow range and maintains preset flow despite pressure changes.","Temperature-responsive control, hydraulic balancing, and visible presetting are therefore established adjacent practices."]},{"source_id":"SRC3","title":"Self-acting controllers integrated to heat exchanger (PN16): PTC2.2+P","publisher":"Danfoss","url":"https://assets.danfoss.com/documents/latest/402155/AI476551466092en-010102.pdf","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A self-acting product integrates proportional-flow, thermostatic, and differential-pressure functions without electronic control.","The mechanism converts an orifice pressure drop through a diaphragm and spring into spindle motion while a thermostatic element adjusts the same valve path.","Its temperature setting is mechanically adjustable and visibly indicated."]},{"source_id":"SRC4","title":"US4144998A — Double throw thermal valve","publisher":"United States Patent and Trademark Office (accessed via Google Patents)","url":"https://patents.google.com/patent/US4144998A/en","source_type":"OTHER","claims_supported":["Older valve art uses a snap-acting bimetallic member to switch fluid passages at a temperature threshold.","The disclosed assembly includes springs and mechanical motion transfer from the bimetal element to the valve stopper.","A mechanically independent, threshold-like thermal switching element is established component-level prior art."]}],"problem_evidence":{"status":"PARTLY_SUPPORTED","finding":"Parallel cold-plate flow starvation and overheating from unequal hydraulic resistance are directly visible in industry guidance, while commercial hydronic products confirm that pressure variation can require combined thermostatic and automatic balancing control. The narrower scenario of a limited shared pump during controller, network, or power-domain failure was not directly documented in the retained sources.","source_ids":["SRC1","SRC2"]},"closest_prior_art":[{"name":"Danfoss Dynamic Valve™","source_ids":["SRC2"],"overlap":"Combines passive thermostatic valve action, differential-pressure regulation, automatic balancing, and an installer-visible maximum-flow preset in one mechanical valve.","remaining_difference":"The source does not disclose a separately exchangeable continuity-priority cartridge, explicit lever-arm weighting of separable forces, or an independent high-temperature latch that forces full opening."},{"name":"Danfoss PTC2.2+P self-acting controller","source_ids":["SRC3"],"overlap":"Mechanically integrates proportional-flow, thermostatic, and differential-pressure functions, with spring/diaphragm force transfer and an adjustable temperature setting.","remaining_difference":"It controls domestic-hot-water heat-exchanger operation rather than allocating scarce coolant among compute branches, and it lacks the proposed declared priority-bias cartridge, visible weighted summing lever, and noncompensable full-open override."},{"name":"US4144998A double throw thermal valve","source_ids":["SRC4"],"overlap":"Provides old component-level art for a snap-acting bimetallic thermal threshold that mechanically redirects fluid through alternate passages.","remaining_difference":"It does not continuously combine temperature, differential pressure, and a revisable priority bias or address parallel-branch coolant allocation."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"Relative to the opened prior art, the testable remaining claim is an entirely passive per-branch allocator in which local temperature force, differential-pressure force, and a replaceable declared-priority bias remain physically separable and visibly reweighted through discrete mechanical settings, while a mechanically independent temperature latch forces full opening regardless of that weighted balance.","contrastive_claim_falsifier":"The claim is falsified by an opened product, patent, or technical disclosure showing those three separately adjustable inputs mechanically combined in a coolant-metering valve with an independent full-open thermal override, or experimentally if cartridge/detent changes are not repeatable and monotonic, the terms cannot be independently perturbed, or any allowed weighted setting prevents full-open threshold actuation.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered the direct compute-cooling problem, hydronic and historical synonyms, commercial balancing and self-acting products, and combinations involving thermostatic elements, differential-pressure mechanisms, mechanical presets, and bimetallic switching. Four opened sources from three publisher identities were retained, including two first-party product sources.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"The general hydraulic problem is directly documented: parallel cold plates can starve disadvantaged branches and overheat while other branches receive excess flow. Evidence for the proposal's precise fault scenario remains narrower, so the problem is only partly supported.","source_ids":["SRC1","SRC2"]},"distinct_testable_claim":{"status":"PASS","rationale":"Close products combine temperature, pressure compensation, flow functions, and mechanical settings, and older art supplies bimetallic switching; none of the opened sources contains the full separable three-term weighting architecture plus independent full-open threshold. Its remaining differences are mechanically observable and falsifiable.","source_ids":["SRC2","SRC3","SRC4"]},"bounded_next_test":{"status":"PASS","rationale":"An isolated three-branch water loop with dummy heaters can compare fixed restrictions, ordinary thermostatic valves, and the proposed assembly over a finite pump/load/configuration matrix while measuring flow, pressure, temperature, valve position, repeatability, settling, and override actuation. This is bounded and does not require production equipment.","source_ids":["SRC1","SRC2","SRC3"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"The authorized test is limited to a supervised, pressure-relieved, low-voltage benchtop water loop with dummy loads, spill containment, rated components, explicit halt criteria, and no production connection. Leakage, pressure excursion, oscillation, seizure, and override failure are identifiable stop conditions; no obvious authority stop prevents that first test.","source_ids":[]}},"screen_survival":true,"world_novelty_boundary":"This bounded four-source screen establishes only adjacent prior art and a remaining contrastive test. It cannot establish world novelty, patentability, freedom to operate, market size, prevalence, expert acceptance, production safety, or realized technical or economic value."}