| 摘要 |
PROBLEM TO BE SOLVED: To provide a large multi-cylinder two-cycle diesel engine having the same performance as that of a conventional engine of this type as well as reduced or unchanged weight and size. SOLUTION: The cross head type of large multi-cylinder two-cycle diesel engine comprises a number of crank-through two-crank shafts 1 mutually joined to main journals 5 supported by main bearings. Each crank-through has two arms 3 connected to each other via a crank pin 4. The arm 3 is joined to the relating main journal 5 with the shrink fitting of the end of the main journal to a hole portion of the arm 3. Bearing portions of the main journals 5 can be individually designed at lengths M<SB>1</SB>, M<SB>2</SB>, ..., M<SB>n+x</SB>. A cylinder pitch and a main bearing pitch are variable and individually adaptable to the crank through 2 and the main bearing 5. COPYRIGHT: (C)2007,JPO&INPIT
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