(2)　Annual results of manufacture

　

2.4.7　NKK Corporation

(1)　Development of new model Nil

(2)　Annual results of manufacture

　

2.4.8　Hanshin Diesel Works, Ltd.

(1)　Development of new model

The LA34 type engine of 2,500PS, having the largest bore stroke ratio of 2.12 in 4-stroke engines, was developed. In this engine the hydraulic pressure valve driving system, Oil-saving ring, etc. were employed for low noise, low fuel consumption and low LO consumption, while low NOx emission was achieved in compliance with IMO's regulation from 2000. Table 2.4.8-1 and Fig. 2.4.8-1 indicate the principal particulars and the section of the newly manufactured LA34 type engine respectively.

　

Table 2.4.8-1 Principal Particulars of LA34 Type Engine

Fig. 2.4.8-1 Section of LA34 Type Engine

　

(2)　Annual results of manufacture

Total number of engines　75 sets

(all for main engines)

Total horse power　202,960PS

(3)　Related equipment

In addition to the diesel engines, the following full-automatic sludge discharge type lubricating oil purifier and the reversing device were developed as the integrated manufacturer of the ship propulsion plants.

The specification of the LO purifier are as follows;

Type　CL16A

Filtration accuracy　2μm

Capacity　330 l/h

This light and compact lubricating oil purifier, which consists of the centrifuge and the precise filter, can concentrate the sludge and automatically discharge the remnant in a sort of jelly.

The HMG50 type reversing device for slow-speed diesel engines is the planet gear style, and the maximum permissible torque is 5,140kgf-m. Fig. 2.4.8-2 indicates the section of this device.

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