Transmission device for driving a fan of a cooling circuit of an internal combustion engine, associated cooling circuit, and vehicle
US-2025207526-A1 · Jun 26, 2025 · US
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using clutches, e.g. electro-magnetic or induction clutches
using clutches, e.g. electro-magnetic or induction clutches · 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 | F01P7/081 |
| Official title | {using clutches, e.g. electro-magnetic or induction clutches} |
| Display label | using clutches, e.g. electro-magnetic or induction clutches |
| Total patents | 14 |
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 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cooling fan device
US-11833883-B1 · Dec 5, 2023 · US
System and method using fan control to assist vehicle braking
US-2022145792-A1 · May 12, 2022 · US
System and method using fan control to assist vehicle braking
US-11326505-B1 · May 10, 2022 · US
Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method
US-10619682-B2 · Apr 14, 2020 · US
Hardware protection mode in high ambient temperature after stationary operation
US-10494982-B2 · Dec 3, 2019 · US
Apparatus Employing Shear Forces To Transmit Energy Having Flow Altering Structures Configured To Increase Heat Rejection From A Working Fluid And Related Method
US-2019293130-A1 · Sep 26, 2019 · US
Hardware protection mode in high ambient temperature after stationary operation
US-2019234288-A1 · Aug 1, 2019 · US
Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method
US-10364852-B2 · Jul 30, 2019 · US
Liquid cooled fan clutch
US-10030717-B2 · Jul 24, 2018 · US
A Fan Drive Assembly
US-2017342988-A1 · Nov 30, 2017 · US
Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method
US-2017130783-A1 · May 11, 2017 · US
Liquid Cooled Fan Clutch
US-2016377127-A1 · Dec 29, 2016 · US
Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method
US-9470278-B1 · Oct 18, 2016 · US