Posts Tagged ‘fluid drive’

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Fluid Drive Upgrades

April 25, 2017

TRI has new tilt pad bearing designs for upgrades to the Size 270 Dual Circuit Fluid Drive. These bearings replace fixed bore pressure dam bearings and are essential for vibration control under high torque conditions.

The image below replace the bearing and the bearing housing on the output-outboard end of the fluid drive. It’s a 6 pad bearing with 2 thermocouples in the bottom pad and vibrations probes at 45° off of the vertical center-line.

Size270DCFD-OPOB-640x640

The image below in the inboard bearing housing. This housing holds the pads for both the input-inboard bearing and the output-inboard bearing.

Size270DCFD-IB-640x640

 

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Geared Fluid Drives

December 15, 2016

Fluid drive applications that require an output speed that is faster than the input speed can utilize a gear set as a speed increaser.  Theoretically, a gear box can increase the speed  either before or after the fluid drive. However, it is usually better to increase the speed before the fluid drive because the size of the fluid drive parts are dependent on rotational speed at the hydraulic coupling: The faster the impeller, the smaller the parts.

TRI can make fluid drives with internal gears. A fluid drive with internal gears has two main advantages over a gear box external to the fluid drive. Machine trains that use fluid drives with internal gears have a smaller overall footprint then placing a gear box between the driver and the fluid drive, and fluid drives with internal gears eliminates the coupling between the drive and the fluid drive.

Call TRI for more information about fluid drives: (800) 363-8571

geared-fluid-drive

SIZE 195 Geared Fluid Drive
Input Speed = 1780, Output Speed = 5780

 

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Fluid Drive Over Heating and Vibration Issues

October 12, 2010

Two common problems found in existing fluid drives (by other manufacturers of course) are over heating and vibration damage. TRI has a Tech Note that explains the history of fluid drives, the historic application for them in the US power industry and the problems that arose after power plants went moved away from providing base load power. Read more…