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2. System construction

 

2.1 Design concept

The pollution free sealing system was designed by mainly three concepts as shown in Fig.1.

 

115-1.gif

Fig.1 Design Concept of AIRGUARD

 

Because the seal ring used in water lubricating condition is always apt to get damages compared with that in oil lubricating, seal rings except the aftermost should be kept not to contact with the sea water as much as possible. The first concept was introduced to separate between the sea water and oil by something harmless to the environment, that is an air in a seal chamber.

 

 

 

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