Hydrodynamic friction clutch
US-11125280-B2 · Sep 21, 2021 · US
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with rotary working chambers and rotary reservoirs, e.g. in one coupling part
with rotary working chambers and rotary reservoirs, e.g. in one coupling part · 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 | F16D35/02 |
| Official title | with rotary working chambers and rotary reservoirs, e.g. in one coupling part |
| Display label | with rotary working chambers and rotary reservoirs, e.g. in one coupling part |
| Total patents | 16 |
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 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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
Hydrodynamic friction clutch
US-2020096056-A1 · Mar 26, 2020 · US
Viscous fluid shear device having fluid channel(s) formed in floating wiper
US-10563708-B2 · Feb 18, 2020 · 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
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
Viscous fluid shear device having fluid channel(s) formed in floating wiper
US-2018291969-A1 · Oct 11, 2018 · US
Fluid friction clutch
US-2017335901-A1 · Nov 23, 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 friction clutch
US-9534643-B2 · Jan 3, 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-9470278-B1 · Oct 18, 2016 · US
Fan clutch for vehicle
US-9255616-B2 · Feb 9, 2016 · US
Bimetal fan clutch with oil storage formed in rotor
US-9140315-B2 · Sep 22, 2015 · US
Fluid clutch device
US-8978859-B2 · Mar 17, 2015 · US
Liquid friction clutch
US-2015053524-A1 · Feb 26, 2015 · US
Fan clutch for vehicle
US-2015014112-A1 · Jan 15, 2015 · US