# US 2025/0092995 A1 · Composite material pressure vessel with strain sensor and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0092995 A1 - Document ID: US20250092995A1 - Status: Published application - Kind: A1 - Application number: 18/565,173 - Filed: 2022-11-25 - Published: 2025-03-20 - Earliest claimed: 2022-05-24 - Assignees: Globiz Co., Ltd. - Applicants: Globiz Co., Ltd. - Inventors: Jong Soon IM; Jun Sik IM - Web page: https://patentgrep.com/patent/US20250092995A1 ## CPC - F17C 1/06: built-up from wound-on bands or filamentary material, e.g. wires - B29C 53/56: Winding and joining, e.g. winding spirally {(winding in general B65H)} - B29C 70/32: on a rotating mould, former or core - B60K 15/03: Fuel tanks - F17C 1/00: Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge (pressurised apparatus for purposes other than storage, see the relevant subclasses such as A62C, B05B; associated with vehicles, see the appropriate subclass of classes B60 - B64; pressure vessels in general F16J12/00 {; autoclaves B01J3/04; tank vehicles B60P3/22; railway tank wagons for carrying fluent materials B61D5/00; accumulators for supplying fluid under pressure F15B1/04; liquefied gas stoves F24C3/00}) - F17C 13/02: Special adaptations of indicating, measuring, or monitoring equipment (measuring in general G01) - G01K 1/14: Supports; Fastening devices; Arrangements for mounting thermometers in particular locations - G01L 1/22: using resistance strain gauges - G01L 17/00: Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies - G01L 19/0092: {Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L9/025, G01L9/045, G01L9/065, G01L9/085, G01L9/105, G01L9/125, G01L19/02, G01L19/04 take precedence; measuring two or more variable G01D21/02; temperature sensors with pressure compensation G01K1/26)} - F17C 2201/0109: with exteriorly curved end-piece - F17C 2201/058: portable (<30 l) - F17C 2209/2154: Winding - F17C 2221/012: Hydrogen - Y02E 60/32: Hydrogen storage - F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A method of manufacturing a composite material pressure vessel is provided. The method may include preparing a liner provided with an entrance portion; and forming an inner shell by winding at least one composite material filament around the liner, wherein the forming of the inner shell includes simultaneously winding a plurality of enamel wire strain sensors around the liner together with the composite material filament by differentiating a start point where each of the plurality of enamel wire strain sensors manufactured in the form of a filament starts to be wound around the liner. A composite material pressure vessel is further manufactured by using the method. ## Claims ### Claim 1 A method of manufacturing a composite material pressure vessel, the method comprising: preparing a liner provided with an entrance portion; and forming an inner shell by winding at least one composite material filament around the liner, wherein the forming of the inner shell includes simultaneously winding a plurality of enamel wire strain sensors around the liner together with the composite material filament by differentiating a start point where each of the plurality of enamel wire strain sensors manufactured in the form of a filament starts to be wound around the liner. ### Claim 2 (depends on 1) The method of claim 1, wherein: the plurality of enamel wire strain sensors are evenly wound around the entire area of the composite material pressure vessel. ### Claim 3 (depends on 1) The method of claim 1, wherein: the plurality of enamel wire strain sensors are wound around the composite material pressure vessel at locally different concentrations. ### Claim 4 (depends on 1) The method of claim 1, wherein: some of the plurality of enamel wire strain sensors are evenly wound around the entire area of the composite material pressure vessel, and others of the plurality of enamel wire strain sensors are wound around the composite material pressure vessel at locally different concentrations. ### Claim 5 (depends on 1) The method of claim 1, further comprising: forming an outer shell on the inner shell. ### Claim 6 (depends on 5) The method of claim 5, further comprising: attaching a dome made of foam plastic to at least one of both ends of the outer shell. ### Claim 7 (depends on 1) The method of claim 1, wherein: the composite material filament includes one or more fibers of carbon fiber, glass fiber, and aramid fiber and a resin. ### Claim 8 (depends on 1) A composite material pressure vessel manufactured by using the method of manufacturing the composite material pressure vessel of claim 1. ### Claim 9 (depends on 8) The composite material pressure vessel of claim 8, wherein: a sensor module connected to a strain sensor to enable communication is mounted on an entrance portion. ### Claim 10 (depends on 9) The composite material pressure vessel of claim 9, wherein: the sensor module includes an internal pressure sensor configured to measure an internal pressure of the composite material pressure vessel; an ambient temperature sensor configured to measure an ambient temperature; and a printed circuit board electrically connected to the strain sensor, the internal pressure sensor, and the ambient temperature sensor. ### Claim 11 (depends on 10) The composite material pressure vessel of claim 10, wherein: the sensor module further includes a communication connector, and the communication connector is configured to transmit a signal measured by the sensor module or a signal generated by the sensor module. ### Claim 12 (depends on 11) The composite material pressure vessel of claim 11, wherein: the sensor module further includes an internal temperature sensor configured to measure an internal temperature of the composite material pressure vessel and electrically connected to the printed circuit board.