Methods and system for diagnosing a high-pressure fuel pump in a fuel system
US-2021277845-A1 · Sep 9, 2021 · US
by throttling of passages to pumping elements or of overflow passages {, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment}
by throttling of passages to pumping elements or of overflow passages {, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment} · 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 | F02M59/34 |
| Official title | by throttling of passages to pumping elements or of overflow passages {, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment} |
| Display label | by throttling of passages to pumping elements or of overflow passages {, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment} |
| Total patents | 82 |
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 | 4 |
| 2016 | 9 |
| 2017 | 6 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 14 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High pressure fuel pump and fuel supply system
US-11028809-B2 · Jun 8, 2021 · US
High-pressure fuel supply pump
US-11002236-B2 · May 11, 2021 · US
Error diagnosis device and error diagnosis method
US-2021087993-A1 · Mar 25, 2021 · US
High-pressure fuel supply pump
US-10941741-B2 · Mar 9, 2021 · US
Fuel pump and inlet valve assembly thereof
US-10871136-B2 · Dec 22, 2020 · US
Fuel pump
US-10859049-B2 · Dec 8, 2020 · US
Metal diaphragm damper
US-2020355150-A1 · Nov 12, 2020 · US
Metering valve for a pump unit for feeding fuel to internal combustion engine and pump unit comprising such a valve
US-2020332752-A1 · Oct 22, 2020 · US
Fuel pump and inlet valve assembly thereof
US-2020256300-A1 · Aug 13, 2020 · US
High-pressure fuel supply pump
US-10731616-B2 · Aug 4, 2020 · US
Solenoid valve
US-2020224786-A1 · Jul 16, 2020 · US
Pressurized fuel system for an engine, and method for operating a pressurized fuel system for an engine
US-2020182185-A1 · Jun 11, 2020 · US
Methods and system for diagnosing a high-pressure fuel pump in a fuel system
US-2020149492-A1 · May 14, 2020 · US
Fuel injector having cam-actuated plunger and plunger cavity metering edge for valvetrain noise suppression
US-2020088146-A1 · Mar 19, 2020 · US
Fuel injector having cam-actuated plunger and plunger cavity metering edge for valvetrain noise suppression
US-10570863-B1 · Feb 25, 2020 · US
Liquid pump with cavitation mitigation
US-10557446-B2 · Feb 11, 2020 · US
Fuel pump and inlet valve assembly thereof
US-2020011279-A1 · Jan 9, 2020 · US
Methods and system for diagnosing a high-pressure fuel pump in a fuel system
US-10526994-B2 · Jan 7, 2020 · US
Group and method for unclogging a filter of a pumping group for pumping diesel to an internal combustion engine
US-2019383225-A1 · Dec 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M59/34?
- CPC F02M59/34 is the Cooperative Patent Classification code for “by throttling of passages to pumping elements or of overflow passages {, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment}.”
- How many patents are filed under CPC F02M59/34 (by throttling of passages to pumping elements or of overflow passages {, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment})?
- Our database includes 82 publications tagged with this CPC code.
- Is patent activity under CPC F02M59/34 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).