| 摘要 |
In order to achieve the practical use of an eccentric rotary compression mechanism (20, 30) which comprises a cylinder (21, 31) having an annular cylinder space (C1), a piston (22, 32) disposed eccentrically with respect to the cylinder (21, 31), and a drive shaft (53) coupled to the piston (22, 32), and in which the piston (22, 32) is provided with a piston part (22a, 22b) that performs eccentric rotational movement with respect to the cylinder (21, 31) and a piston-side end plate part (22c, 32c) that closes the cylinder space (C1) and a plurality of cylinder chambers (23a,…, 23d, 33a,…, 33d) are formed, while preventing increase in cost and increase in structural complexity, an end plate accommodating space which accommodates the piston-side end plate part (22c, 32c) so that the piston-side end plate part can perform eccentric rotational movement is formed in the cylinder (21, 31), the cylinder space (C1) constitutes a main cylinder chamber, and the end plate accommodating space is used as an auxiliary cylinder chamber (C2). |
