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Flush Cock Valves

April 27, 2017

Flush cock valves are used for situations where it is absolutely critical that a valve that can shut off the lube oil flow cannot be operated when the lube oil system is pressurized and in service.

FlushCockValveAssembled

TRI Manufactures flush cock valves for turbine generator lube oil systems. These valves can block or divert oil, but the are specifically designed not be operable while the system is under pressure.

For more information: http://turboresearch.com/products/flush-cock-valves

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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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Lift Oil Pocket

January 13, 2017

A quick video of a lift oil pocket machined on a CNC mill. The pocket is a constant 0.045″ deep along the curved bore.

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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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Top 5 Causes of Bearing Failures

December 6, 2016

There are many reasons why bearings fail. Over the years, TRI has been involved many repairs. TRI has published a list of the top 5 problems that lead to hydrodynamic bearing failures and how to avoid these pitfalls.

top-5-graphic

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Babbitt Casting Animation

November 14, 2016

A new animation showing the centrifugal Babbitt caster at TRI Transmission & Bearing Corp. has been added to YouTube.

Read the rest of this entry »

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Past Tech Notes

September 1, 2016

Since 1994, Dr. Mel’s Tech Notes have been issued from time to time. The Tech Note has evolved.  Since 2004, they have been distributed through email.  Prior to email, the Tech Note as sent out by fax.  When we first started sending out Tech Notes, the scope and length of the information was limited by the fax technology.  Most Tech Notes were brief, one page summaries of our latest projects. Now the Tech Note is distributed via email and published on the TRI Web Site (http://www.turboresearch.com/); the length and scope of the Tech Notes are no longer hampered by the delivery method.    Read the rest of this entry »