Engine operating method and engine system for improved load step acceptance
US-2021404375-A1 · Dec 30, 2021 · US
by increasing exhaust energy, e.g. using combustion chamber {by after-burning (using an auxiliary combustion chamber supplied by charging air F02B37/166)}
by increasing exhaust energy, e.g. using combustion chamber {by after-burning (using an auxiliary combustion chamber supplied by charging air F02B37/166)} · 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 | F02B37/20 |
| Official title | by increasing exhaust energy, e.g. using combustion chamber {by after-burning (using an auxiliary combustion chamber supplied by charging air F02B37/166)} |
| Display label | by increasing exhaust energy, e.g. using combustion chamber {by after-burning (using an auxiliary combustion chamber supplied by charging air F02B37/166)} |
| Total patents | 73 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 5 |
| 2020 | 10 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal combustion engine
US-2021277849-A1 · Sep 9, 2021 · US
Methods to enhance powertrain systems equipped with turbocharger or regenerative braking system
US-11104340-B2 · Aug 31, 2021 · US
An internal combustion engine
US-2021231065-A1 · Jul 29, 2021 · US
Powerplant and related control system and method
US-11022030-B2 · Jun 1, 2021 · US
Compounded internal combustion engine
US-11002185-B2 · May 11, 2021 · US
On-board diagnostics of a turbocharger system
US-2021010438-A1 · Jan 14, 2021 · US
Exhaust gas turbocharger
US-10890105-B2 · Jan 12, 2021 · US
Systems and methods for increasing power output in a waste heat driven air brayton cycle turbocharger system
US-10851704-B2 · Dec 1, 2020 · US
A method for controlling a turbocharger system for a combustion engine and a turbocharger system for use together with a combustion engine
US-2020355112-A1 · Nov 12, 2020 · US
Compounded internal combustion engine
US-2020309025-A1 · Oct 1, 2020 · US
High altitude internal combustion engine/turbocharger exhaust combustor
US-10746090-B2 · Aug 18, 2020 · US
Systems and methods for a boosted internal combustion engine with an intake-side bypass line
US-10697362-B2 · Jun 30, 2020 · US
Systems and methods for increasing power output in a waste heat driven air brayton cycle turbocharger system
US-2020191048-A1 · Jun 18, 2020 · US
Turbine housing and method of improving efficiency of a radial/mixed flow turbine
US-2020173298-A1 · Jun 4, 2020 · US
Powerplant and related control system and method
US-2020173345-A1 · Jun 4, 2020 · US
Methods to enhance powertrain systems equipped with turbocharger or regenerative braking system
US-2020148210-A1 · May 14, 2020 · US
High altitude internal combustion engine/turbocharger exhaust combustor
US-2020063647-A1 · Feb 27, 2020 · US
Drive system with expander shut off upon detection of a leak
US-10519878-B2 · Dec 31, 2019 · US
Exhaust gas turbocharger
US-2019323422-A1 · Oct 24, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B37/20?
- CPC F02B37/20 is the Cooperative Patent Classification code for “by increasing exhaust energy, e.g. using combustion chamber {by after-burning (using an auxiliary combustion chamber supplied by charging air F02B37/166)}.”
- How many patents are filed under CPC F02B37/20 (by increasing exhaust energy, e.g. using combustion chamber {by after-burning (using an auxiliary combustion chamber supplied by charging air F02B37/166)})?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC F02B37/20 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).