Piston assembly with opposing injection regions for an opposed-piston engine
US-12320312-B2 · Jun 3, 2025 · US
having in-cylinder means to influence the charge motion
having in-cylinder means to influence the charge motion · 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 | F02B23/0618 |
| Official title | {having in-cylinder means to influence the charge motion} |
| Display label | having in-cylinder means to influence the charge motion |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston assembly with opposing injection regions for an opposed-piston engine
US-2023392564-A1 · Dec 7, 2023 · US
Bluff body combustion system for an internal combustion engine
US-11236711-B2 · Feb 1, 2022 · US
Diesel engine, motor vehicle and method for reducing heat transfer to a piston of a cylinder of a diesel engine
US-11162410-B2 · Nov 2, 2021 · US
Piston for internal combustion engine having congruous combustion bowl and gallery surfaces and method of making the same
US-11118533-B1 · Sep 14, 2021 · US
Diesel engine, motor vehicle and method for reducing heat transfer to a piston of a cylinder of a diesel engine
US-2021180508-A1 · Jun 17, 2021 · US
Bluff body combustion system for an internal combustion engine
US-2020408175-A1 · Dec 31, 2020 · US
Piston design for flow re-direction
US-10876464-B2 · Dec 29, 2020 · US
Air-compressing internal combustion engine
US-2020340391-A1 · Oct 29, 2020 · US
Power cylinder apparatus for reducing unburnt hydrocarbon emissions
US-10724424-B2 · Jul 28, 2020 · US
Piston assembly with opposing injection regions for an opposed-piston engine
US-2020191090-A1 · Jun 18, 2020 · US
A piston for an internal combustion engine
US-2020141305-A1 · May 7, 2020 · US
Piston Design for Flow Re-Direction
US-2020095920-A1 · Mar 26, 2020 · US
Combustion system for an internal combustion engine
US-2019301408-A1 · Oct 3, 2019 · US
Combustion chamber structure of engine
US-10273870-B2 · Apr 30, 2019 · US
Diesel engine having reentrant combustion chamber
US-2019112968-A1 · Apr 18, 2019 · US
Ducted combustion systems utilizing flow field preparation
US-10119456-B2 · Nov 6, 2018 · US
Ducted combustion systems utilizing duct-exit tabs
US-10036356-B2 · Jul 31, 2018 · US
Ducted combustion systems utilizing flow field preparation
US-2018195430-A1 · Jul 12, 2018 · US
Combustion chamber structure of engine
US-2018171862-A1 · Jun 21, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B23/0618?
- CPC F02B23/0618 is the Cooperative Patent Classification code for “having in-cylinder means to influence the charge motion.”
- How many patents are filed under CPC F02B23/0618 (having in-cylinder means to influence the charge motion)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC F02B23/0618 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).