Propane fuel system thermal management systems and methods
US-12510044-B2 · Dec 30, 2025 · US
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by using heat from working cylinders or cylinder heads
by using heat from working cylinders or cylinder heads · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02M31/14 |
| Official title | by using heat from working cylinders or cylinder heads |
| Display label | by using heat from working cylinders or cylinder heads |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine device
US-2025290473-A1 · Sep 18, 2025 · US
Pressure regulator warm up system for a transport refrigeration unit
US-12030364-B2 · Jul 9, 2024 · US
Propane fuel system thermal management systems and methods
US-2024035432-A1 · Feb 1, 2024 · US
Method and system for radiator fan operation for charge air cooler ice elimination
US-11821392-B2 · Nov 21, 2023 · US
Method and system for radiator fan operation for charge air cooler ice elimination
US-2023151784-A1 · May 18, 2023 · US
Engine air intake device
US-11371474-B2 · Jun 28, 2022 · US
Vehicle system with fuel separation system and method of using same
US-11339754-B1 · May 24, 2022 · US
Pressure regulator warm up system for a transport refrigeration unit
US-2021260961-A1 · Aug 26, 2021 · US
Engine air intake device
US-2021254585-A1 · Aug 19, 2021 · US
System including oxygen separation device
US-10458373-B2 · Oct 29, 2019 · US
Fuel supply device
US-10415520-B2 · Sep 17, 2019 · US
System including oxygen separation device
US-2019186436-A1 · Jun 20, 2019 · US
Work apparatus with a gas-operated combustion engine
US-2019178210-A1 · Jun 13, 2019 · US
Fuel supply device
US-2018163678-A1 · Jun 14, 2018 · US
Heat exchanger for the feeding of fuel in internal combustion engines
US-9835118-B2 · Dec 5, 2017 · US
Heat exchanger for the feeding of fuel in an internal combustion engine
US-9810182-B2 · Nov 7, 2017 · US
Thermal management system for the feeding of fuel in internal combustion engines
US-9752514-B2 · Sep 5, 2017 · US
Heat exchanger for the feeding of fuel in internal combustion engines
US-2016265490-A1 · Sep 15, 2016 · US
Power plant using two fuels, including one fuel with a high gelation temperature
US-2016177845-A1 · Jun 23, 2016 · US