Multistage pump with axial thrust optimization
US-11549512-B2 · Jan 10, 2023 · US
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By-passing by increasing clearance between impeller and its casing
By-passing by increasing clearance between impeller and its casing · 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 | F04D15/0033 |
| Official title | {By-passing by increasing clearance between impeller and its casing} |
| Display label | By-passing by increasing clearance between impeller and its casing |
| Total patents | 24 |
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 | 2 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotodynamic pump having a body defining a body cavity with a first and second housing portion defining a portion of an impeller cavity and disposed within the body cavity wherein the body cavity extends at least in part around the second housing portion and the housing portions defining an impeller clearance
US-11459958-B2 · Oct 4, 2022 · US
Hydraulically powered rotary actuator
US-11268547-B2 · Mar 8, 2022 · US
A Multistage Pump With Axial Thrust Optimization
US-2022042513-A1 · Feb 10, 2022 · US
Pump for pumping liquid as well as impeller assembly
US-11236757-B2 · Feb 1, 2022 · US
Vortex pump
US-11168695-B2 · Nov 9, 2021 · US
Gas turbine engine operating point
US-2021071672-A1 · Mar 11, 2021 · US
Rotodynamic pump and method
US-2020300179-A1 · Sep 24, 2020 · US
Spring regulated variable flow electric water pump
US-10760577-B2 · Sep 1, 2020 · US
Pump with integrated bypass mechanism
US-10662961-B2 · May 26, 2020 · US
Gas turbine engine operating point
US-2020011333-A1 · Jan 9, 2020 · US
Vortex Pump
US-2019316590-A1 · Oct 17, 2019 · US
Spring regulated variable flow electric water pump
US-2019162190-A1 · May 30, 2019 · US
Pump for pumping liquid as well as impeller assembly
US-2019154047-A1 · May 23, 2019 · US
Pump with integrated bypass mechanism
US-2019128271-A1 · May 2, 2019 · US
A hydraulically powered rotary actuator
US-2019072116-A1 · Mar 7, 2019 · US
Compressor clearance control
US-10161406-B2 · Dec 25, 2018 · US
Pump for pumping liquid as well as an impeller assembly
US-9828999-B2 · Nov 28, 2017 · US
Adjustable core turbocharger
US-9695822-B2 · Jul 4, 2017 · US
Spring regulated variable flow electric water pump
US-2016290340-A1 · Oct 6, 2016 · US