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Drive unit for improving of existing diesel hammers for driving piles

Country of Origin: Bulgaria
Reference Number: TOBG20180911002
Publication Date: 11 September 2018

Summary

A Bulgarian SME with experience in R&D and engineering activities has developed an innovative drive unit for modernisation of existing diesel hammers for driving piles. The company is looking for research cooperation agreements and technical cooperation agreements with interested companies and R&D institutions in order to test new applications.

Description

The SME from Bulgaria has long-term experience in the research and development of a number of innovative engineering solutions. The company has been awarded for innovative solutions several times on national and international level.

The principle of “free fall impact” used in all current solutions for driving of piles is several times less effective than the principle of operation used in the device developed by the SME.

The novel engineering solution improves the crusher parts of hammers. The crusher part drive is carried out by an industrial rocket engine. The module provides power to the industrial crusher engine, allowing the driving of piles at any chosen angle.

The most important elements needed are:
1. Working (series-produced) pipe diesel hammer with a mass of the crusher parts up to 2250 kg, mounted on a suitable tractor (truck).
2. Drive module supplying the fuel and oxidizer to the industrial rocket engine. Additionally, receivers for compressed air up to 300 atmospheres (300 bars) and high pressure air compressor are included.
3. Reconstruction of the crushing part of a running diesel hammer with tubular mass of the crushing part up to 2250 kg, as well as, the hammer itself in order to be used to drive the industrial rocket engine.
4. Stand testing of the industrial rocket engine for reaching the necessary thrust for different cases of pivot driving.
5. Reconstruction of the leading pole of the hammer in order to provide different angles in the range 0-90 degrees from the vertical axis. Particular attention is given to driving at the angle range of 40-45 degrees from the vertical axis and the horizontal position - 90 degrees.
6. Adjusting performance of the drive module hammer at different angles of the crash.

The company is looking for research cooperation agreements with R&D institutions in order to test new applications and technical cooperation agreements with interested companies.

Advantages and Innovations

- the developed drive unit is innovative as all current solutions use the principle of “free fall impact” and are 3 to 4 times less effective than the solution proposed. It has a novel principle of operation. 
- the drive unit allows driving of piles at any angle in space.
- it is more effective in terms of features, earth stabilisation performance and price compared to existing solutions.

Stage Of Development

Available for demonstration

Requested partner

- Type of partner sought: industrial and R&D partners;
- Specific area of activity of the partner: companies and R&D units involved in manufacturing of hammers for driving piles, producing elements for crusher parts, receiver and high pressure compressors, organisations developing rocket engines with liquid fuel, with thrust up to 2000 kg;
- Task to be performed: the company is interested in research cooperation agreements with R&D institutions andtechnical cooperation agreements with companies interested in the innovative solution with adaptation to the specific needs.

Kooperationsanfrage stellen