Tel: 610-363-8570 PO BOx 454, Lionville, PA 19353

TRI Patents

4,867,006
Rotating Shaft Mounted Actuating Mechanism

5,144,862
Rotating shaft mounted actuating mechanism

5,188,170
Rocker connection

5,207,903
Filter stand assembly

5,303,801
Brake assembly having an adjustable yoke

5,315,825
Oil system for constant input speed fluid drive

5,331,811
Fluid drive

5,438,755
Method of making a monolithic shrouded impeller

5,505,662
Quick disconnect

5,573,374
Monolithic shrouded impeller

5,610,500
Method of converting turbine driven generator into a synchronous condenser

5,886,505
Apparatus and method for bringing on line a large synchronous condenser that cannot be started by an across the line start

6,712,516
Bearing spring plate pedestal

6,769,248
Fluid coupling for mobile equipment

7,171,870
Geared fluid drive with parallel start-up capability

7,237,958
Bearing stiff plate pedestal

Other patents pending

`Heavy Duty Fluid Drives for Pumps, Fans and Compressors`

TRI designs and manufacturers variable speed fluid drives for large pumps, fans and compressors.

TRI has provided retrofit packages to existing applications. Many of these units have been made to the available space envelope. In other words, they are "custom made" for the specific application.

TRI has many variable fluid drives in service for boiler feed pumps from 3,000 to 28,000 hp at 3600 rpm input in power plants, as well as fans at 600 rpm.

TRI manufactures all of our products in our U.S. facility. In almost all applications, we machine the impellers and runners from forged steel. The consequence is that our equipment has a very high reliability record. Our fluid drives typically have operational records exceeding ten years between inspections.



	Custom Applications Consider an existing application that consists of a constant speed motor driving a constant speed compressor. In such a case, it is typical to move the motor back away from the load (pump or compressor), and install a fluid drive with new flexible couplings. In some applications, the same flex couplings can be used with new coupling halves of the same design and size that are mounted onto the fluid drive input and output shafts. Then, the existing flex couplings do not have to be removed from the existing equipment. In most cases, there is no need for the manufacturer of the pump or compressor or the driving motor to be involved. TRI has considerable expertise in the required engineering skills such as rotor-dynamics and stress analysis. If the compressor or pump is to have a new application (process fluid or pressure) then the manufacturer might be involved. We can provide drawings for the foundation modifications and your civil engineers can create the necessary foundation drawings. TRI can supply the soleplates, or we can provide soleplate specifications and you can manufacture soleplates.

TRI can supply complete oil systems, or we can provide the specifications for the actual hardware of the oil systems.

There is considerable energy savings that will result from application of fluid drives with large pumps, fans and compressors. In addition, the starting operation for all components, motors, compressors, fans, pumps, and any gears, is much easier, so life expectancy of the components is greatly increased. Removal of any discharge control valves permits improved ease of operation, and the valves that are removed no longer need maintenance. The time period that it takes to pay back the capital cost of the installation is usually measured in months. The reduced maintenance cost and increased production time (reduced downtime) should also be factored into the "benefit to cost" ratio.

In order to move to specifics, please provide descriptions of applications that you think might benefit from the use of TRI Fluid Drives. The most important factors are these:

- Description of application including process fluid (preferred).
- Speed range of the load (pump, fan, or compressor).
- Speed of the driver.
- If driver is a motor: induction motor or a synchronous motor?
- If not a motor, what is the driver?
- Is there a gearbox now being used?
- What is the time frame for doing the project?

TRI typically uses a separate oil reservoir, so the size of the fluid drive housing is reduced.

The rotating components in TRI fluid drives are made from steel. All steel construction makes the TRI fluid drive "heavy duty".

TRI Fluid Dives are made in the U.S.A.

If you have more questions about Fluid Drives, please call TRI at 800-363-8571