Hydraulic pump with swash plate tilt control
US-12540605-B2 · Feb 3, 2026 · US
by varying the relative positions of a swash plate and a cylinder block
by varying the relative positions of a swash plate and a cylinder block · 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 | F04B27/22 |
| Official title | by varying the relative positions of a swash plate and a cylinder block |
| Display label | by varying the relative positions of a swash plate and a cylinder block |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Straight axis variable displacement piston pump with rotating swash plate
US-2025389259-A1 · Dec 25, 2025 · US
Capacity control valve
US-12180950-B2 · Dec 31, 2024 · US
Swash plate-type compressor
US-11885319-B2 · Jan 30, 2024 · US
Capacity control valve
US-11867312-B2 · Jan 9, 2024 · US
Capacity control valve
US-11754194-B2 · Sep 12, 2023 · US
Electronic control valve for HVAC system of vehicle and control method of HVAC system
US-11685232-B2 · Jun 27, 2023 · US
Hydraulic pump
US-2023193886-A1 · Jun 22, 2023 · US
Capacity control valve having a throttle valve portion with a communication hole
US-11603832-B2 · Mar 14, 2023 · US
Hydraulic pump with swash plate tilt control
US-11603830-B2 · Mar 14, 2023 · US
Method for controlling swash plate compressor and swash plate compressor
US-2023035718-A1 · Feb 2, 2023 · US
Capacity control valve
US-2022213877-A1 · Jul 7, 2022 · US
Capacity control valve
US-2022170564-A1 · Jun 2, 2022 · US
Capacity control valve
US-2022154838-A1 · May 19, 2022 · US
Control valve for a swash plate compressor having a passage controlled by three orifice holes and variable capacity compressor
US-11221003-B2 · Jan 11, 2022 · US
Swash plate-type compressor
US-2022003224-A1 · Jan 6, 2022 · US
Compressor
US-11053795-B2 · Jul 6, 2021 · US
Piston compressor
US-11015587-B2 · May 25, 2021 · US
Control valve and variable capacity compressor
US-2020400133-A1 · Dec 24, 2020 · US
Electronic control valve for hvac system of vehicle and control method of hvac system
US-2020369119-A1 · Nov 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B27/22?
- CPC F04B27/22 is the Cooperative Patent Classification code for “by varying the relative positions of a swash plate and a cylinder block.”
- How many patents are filed under CPC F04B27/22 (by varying the relative positions of a swash plate and a cylinder block)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC F04B27/22 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).