FLUDEX Fluid Couplings by Flender
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Fluid coupling, also known as hydraulic coupling, is a hydrodynamic device used to transfer rotational power from one shaft to another using transmission fluid. It is used in the automotive transmission system, marine propulsion system, and industries for power transmission. The FLUDEX hydrodynamic fluid coupling works according to the Föttinger principle. It functions entirely free of wear.
Hydrodynamic transmission converts the torque and speed within the power flow of a driving machine to a working device based on their indirect principle.
Benefits
FLUDEX couplings have many benefits. Too many to list them all, so we'll mention just three.
- FLUDEX couplings are hydrodynamic fluid couplings that operate on the Föttinger principle. The coupling parts on the input and output sides are not mechanically connected to each other. Output is transmitted via the oil filling, which rotates in the coupling and is conducted over radially arranged blades.
- FLUDEX couplings limit starting and maximum torque in the drive train and, through the property of rotational slip, serve as an aid to starting the motor, as overload protection in the event of a fault, and for isolating torsional vibration.
- All FLUDEX couplings are designed with unset radial blades and are therefore suitable for rotation in both directions and reversing operation. They can be fitted horizontally, at an angle, or vertically. In the case of FLUDEX couplings with a delay chamber, it must be ensured that the delay chamber is below the working chamber when fitting at an angle or vertically.
Design and Configuration
FLUDEX couplings are constructed of just a few robust components. Internal components include the hollow shaft or solid shaft (106), to which the blade wheel (105) is connected. The outer housing comprises the cover (102) and the blade wheel housing (101). The joint is constructed as a bolted flange joint and sealed with an O ring. The outer housing and the shaft or hollow shaft have double-bearing support and are sealed off to the outside with radial shaft seals. The coupling is provided with two filler plugs (153) with integral overflow protection and one or two fusible safety plugs (103) in the coupling housing to protect against overheating. The fusible safety plug or a screw plug fitted in the same position also serves as a fluid drain plug and, with the aid of a scale marking on the housing, can be used as a level indicator.
Application
FLUDEX couplings are used in drives for conveyor systems such as belt conveyors, bucket elevators, and chain conveyors. In heavy industry, FLUDEX couplings are used for applications such as blade wheel drives, crushers, roller presses, mixers, large ventilators, boiler feed pumps, large compressors, centrifuges, and auxiliary drives for mills. Further applications are, for example, pump drives, PTO generator drives, wind power systems, and door and gate drives. In drives with diesel engines, FLUDEX couplings are used on driven machines with a high mass moment of inertia.
Product Literature
Flender Fluid Couplings Catalog
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