| 摘要 |
Provided is a linear generator which ensures efficient power generation stably while achieving a simplified structure and a reduced size and weight of the generator. The linear generator has a fluid pressure cylinder structure for reciprocating a piston (6) in a cylinder (1) in the axial direction by applying alternately a fluid pressure in a left fluid pressure chamber (4) in contact with the left end wall (2) of the cylinder (1) and a fluid pressure in a right fluid pressure chamber (5) in contact with the right end wall of the cylinder (1) to the piston (6), wherein a permanent magnet band (9) is formed between the left pressure receiving surface (7) in contact with the left fluid pressure chamber (4) of the piston (6) and the right pressure receiving surface (8) in contact with the right fluid pressure chamber (5) of the piston (6), and an electromotive coil band (11) provided over the left and right fluid pressure chambers (4, 5) is formed on the cylindrical wall between the left and right end walls (2, 3) of the cylinder (1) so that power generation in the electromotive coil band (11) is induced by the reciprocating movement in the axial direction of the piston (6) having the permanent magnet band (9).
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