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METHOD OF PROTECTION FOR ENGINE AND TURBOCHARGER PERFORMANCES

IP.com Disclosure Number: IPCOM000245893D
Publication Date: 2016-Apr-18
Document File: 4 page(s) / 98K

Publishing Venue

The IP.com Prior Art Database

Related People

Heikki Bergman: INVENTOR [+2]

Abstract

By means of utilizing existing motor performance measurements methods and fuel oil analyses result information, it is possible create engine and turbo charger protection function inside HMI, such as an energy monitoring and management system, which guides and recommends users accordingly to increase/decrease the maintenance interval or to take safety manners. When fuel oil in-flow and out-flow are measured, as well as output torque from the engine shaft, with an optimization algorithm, it may be monitored if the oil analysis result input is having an effect on specific fuel oil consumption (SFOC) of the engine. It can be detected if SFOC value moves compared to long term average into better or worse direction. In case it is moving into the worse direction, an alarm can be generated

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METHOD OF PROTECTION FOR ENGINE AND TURBOCHARGER PERFORMANCES

The innovation concerns marine main, auxiliary and propulsion engines.

In the marine industry, fuel (heavy fuel oil, marine diesel) is purchased in large quanti- ties and typically from various places. Quality of oil is briefly described in the seller's certificate, but oil quality is not linked in the operational performance of the ship - neither to engines operational performances nor the maintenance recommendation of the en- gine or the turbocharger.

Recently, the bunker (fuel oil) suppliers have reduced the analyses content and calcu- lated analyses of the fuel oil they sell. This makes it more difficult to understand the fuel oil quality that is received. It also makes nearly impossible to link the fuel oil quality onto the performance of the vessel.

Additionally, it is known that certain fuel oil quality features do have direct impact on the lifetime of the turbocharger. Such direct impact is, for example, between the quantity of aluminium particles in fuel and the turbo impeller blade wear.

By means of utilizing existing motor performance measurements methods and fuel oil analyses result information, it is possible create engine and turbo charger protection function inside HMI, such as an energy monitoring and management system, which guides and recommends users accordingly to increase/decrease the maintenance inter- val or to take safety manners.

When fuel oil in-flow and out-flow are measured, as well as output torque from the en- gine shaft, with an optimization algorithm, it may be monitored if the oil analysis result input is having an effect on specific fuel oil consumption (SFOC) of the engine. It can be detected if SFOC value moves compared to long term average into better or worse di- rection. In case it is moving into the worse direction, an alarm can be generated. This indicates to the owner that purchased fuel oil source should not be selected any more.

In case the sample of the purchased fuel is analyzed and results are fed into the moni- toring system, the performance of engine (and ship) can be linked with fuel oil quality. At

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the same time, the values can be linked to the maintenance interval data and updated maintenance intervals can be shown in HMI. Instant warning / alarm can be made in case any fuel oil analysis result is in the critical level.

In the improvement, there is provided a preventive protection function on the turbo charger, by linking the fuel oil quality onto the operation. In the improvement, it is possi- ble to discover how to connect fuel quality directly online with t...