fluid coupling


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fluid coupling

[¦flü·əd ¦kəp·liŋ]
(mechanical engineering)
A device for transmitting rotation between shafts by means of the acceleration and deceleration of a fluid such as oil. Also known as hydraulic coupling.

Fluid coupling

A device for transmitting rotation between shafts by means of the acceleration and deceleration of a hydraulic fluid. Structurally, a fluid coupling consists of an impeller on the input or driving shaft and a runner on the output or driven shaft. The two contain the fluid (see illustration). Impeller and runner are bladed rotors, the impeller acting as a pump and the runner reacting as a turbine. Basically, the impeller accelerates the fluid from near its axis, at which the tangential component of absolute velocity is low, to near its periphery, at which the tangential component of absolute velocity is high. This increase in velocity represents an increase in kinetic energy. The fluid mass emerges at high velocity from the impeller, impinges on the runner blades, gives up its energy, and leaves the runner at low velocity. See Hydraulics

Basic fluid couplingenlarge picture
Basic fluid coupling
References in periodicals archive ?
For this, the operator plans on installing an additional 866 TPKL fluid coupling.
Chinese Select Fluid Couplings for a Large Conveyor Drive
12 coal mine, the fluid couplings were operated in the partially filled mode during commissioning to be sure that the belt was tracking properly.
RM Wilson was aware that Voith's fill controlled fluid couplings were already a well-proven solution and it organized a meeting with Voith to further discuss the control system requirements.
The controlled application of torque, along with the torsional dampening characteristics of the fill controlled fluid couplings mean that users can expect the maximum possible life out of all drive components and AFC chain.
Different types of mechanical maintenance works of emergency nature like replacement of fluid couplings , Geared couplings , 150mm dia pipes , Bearings for vgf bearings for rgrs and fabrication of lock plates , Double scrapper plates , Idler frames etc if necessray as and when required for the year 2018-19 in crusher house of mm-iii sub division chp stage-iii drnttps
For 10 new belt conveyors, it will deploy 14 TWS fluid couplings from 55-315 kW.
We're all very impressed with the performance of the TWS constant-fill fluid couplings.
The two-speed motors were replaced with Voith Fluid Couplings (type 562 DTPKWL2) to prevent chain breaks as well as gearbox and motor break downs in the future.
Based on the hydrodynamic principle, the fluid couplings protect the whole drive train from overload situations, which often happen at Chang Ping," said Mao Weihong, head of the mechanical and electrical department of Chang Ping.