Hydrogen engine
US-12546248-B2 · Feb 10, 2026 · US
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with separate admission of air and fuel into cylinder
with separate admission of air and fuel into cylinder · 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 | F02B1/08 |
| Official title | with separate admission of air and fuel into cylinder |
| Display label | with separate admission of air and fuel into cylinder |
| Total patents | 15 |
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 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 4 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrogen engine
US-2025257684-A1 · Aug 14, 2025 · US
Control system for compression-ignition engine
US-10794323-B2 · Oct 6, 2020 · US
Control system of compression-ignition engine
US-10704524-B2 · Jul 7, 2020 · US
Combustion control device for compression autoignition engine
US-10677187-B2 · Jun 9, 2020 · US
Internal combustion engine with injection device arranged in the cylinder barrel, and method for operating an internal combustion engine of said type
US-10590898-B2 · Mar 17, 2020 · US
Control system for compression-ignition engine
US-2019360425-A1 · Nov 28, 2019 · US
Control system of compression-ignition engine
US-2019360451-A1 · Nov 28, 2019 · US
In-cylinder air injection via dual-fuel injector
US-2019338730-A1 · Nov 7, 2019 · US
Combustion control device for compression autoignition engine
US-2019093592-A1 · Mar 28, 2019 · US
Diesel engine cold starting system and methods
US-10138833-B1 · Nov 27, 2018 · US
Internal combustion engine with injection device arranged in the cylinder barrel, and method for operating an internal combustion engine of said type
US-2018003140-A1 · Jan 4, 2018 · US
Managing shift energy in a transmission of a vehicle
US-9777651-B2 · Oct 3, 2017 · US
Managing shift energy in a transmission of a vehicle
US-2016265460-A1 · Sep 15, 2016 · US
Gas fuel admission system for a gas fired engine
US-9175614-B2 · Nov 3, 2015 · US