Pre-chamber ignition device with variable volume capability for internal combustion engines
US-11994057-B1 · May 28, 2024 · US
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with auxiliary piston in chamber for transferring ignited charge to cylinder space
with auxiliary piston in chamber for transferring ignited charge to cylinder space · 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 | F02B19/06 |
| Official title | with auxiliary piston in chamber for transferring ignited charge to cylinder space |
| Display label | with auxiliary piston in chamber for transferring ignited charge to cylinder space |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2018 | 2 |
| 2020 | 2 |
| 2021 | 7 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel supply system for active pre-combustor
US-11788458-B2 · Oct 17, 2023 · US
Fuel supply system for active pre-combustor
US-2023160334-A1 · May 25, 2023 · US
Ignitor for natural gas engine
US-11326507-B2 · May 10, 2022 · US
Ignitor for natural gas engine
US-2021324783-A1 · Oct 21, 2021 · US
Prechamber ignition system having hydraulically actuated piston
US-11125147-B2 · Sep 21, 2021 · US
Gaseous fuel engine and sparkless operating strategy therefor
US-11078826-B1 · Aug 3, 2021 · US
Pre-chamber ignition system having igniter with gas orifice structured for pre-expanding outgoing combustion gases
US-11078827-B2 · Aug 3, 2021 · US
Ignitor for natural gas engine
US-2021222609-A1 · Jul 22, 2021 · US
Ignitor for natural gas engine
US-11066977-B1 · Jul 20, 2021 · US
Methods and systems for a variable volume pre-chamber igniter
US-11066980-B1 · Jul 20, 2021 · US
Prechamber ignition system having hydraulically actuated piston
US-2020392892-A1 · Dec 17, 2020 · US
Pre-chamber ignition system having igniter with gas orifice structured for pre-expanding outgoing combustion gases
US-2020116074-A1 · Apr 16, 2020 · US
Internal combustion engine
US-10161296-B2 · Dec 25, 2018 · US
Direct injection of diluents or secondary fuels in gaseous fuel engines
US-9909514-B2 · Mar 6, 2018 · US
Combustion Pre-Chamber and Method for Operating Same
US-2016348569-A1 · Dec 1, 2016 · US
Internal combustion engine
US-2016230645-A1 · Aug 11, 2016 · US
Pressure-limiting device for pre-combustion chamber
US-2016069251-A1 · Mar 10, 2016 · US
Control valve for pre-combustion chamber assembly
US-2016069250-A1 · Mar 10, 2016 · US