F16D35/021 - CPC Classification Index

ClassID:

148424 ⎘

F16D35/021 - CPC Classification

Classification description:

Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves

Sub-classes:

F16D35/022 » {the valve being actuated by a bimetallic strip } 9
F16D35/023 » {the valve being actuated by a bimetallic coil } 13
F16D35/024 » {the valve being actuated electrically, e.g. by an electromagnet } 89
F16D35/025 » {the valve being actuated by inertia, e.g. using a flyweight or a centrifugal mass } 2
F16D35/026 » {actuated by a plurality of valves; the valves being actuated by a combination of mechanisms covered by more than one of groups to } 4

Recent Application in this class:

20250188999

2025-06-12

VISCOUS CLUTCH WITH FRONT-MOUNTED ELECTROMAGNETIC COIL, MODULAR VALVE AND FRONT HUB SUBASSEMBLIES FOR A VISCOUS CLUTCH, AND METHOD OF MAKING

20200096056

2020-03-26

Hydrodynamic friction clutch

20190293130

2019-09-26

Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method

20180291969

2018-10-11

Viscous fluid shear device having fluid channel(s) formed in floating wiper

20180252275

2018-09-06

Morning sickness valve system for viscous clutch

20180073576

2018-03-15

Two speed clutch with viscous system

20170241490

2017-08-24

Viscous clutch and associated flux circuit configuration

20170130783

2017-05-11

Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method