| 摘要 |
A pump is provided with a housing (31), a rotor (40), and a separating member (50). The housing (31;60) is formed by connecting two housing members. A first housing member (31) has a cylindrical wall (31h) and a bottom wall (31c), and the other end of the cylindrical wall (31h) is open. A second housing member (60) comprises a sealing portion (61), a side portion (62) and a connecting portion (63). The side portion (62) extends from the sealing portion (61) to the bottom side of the first housing member (31) along an outer face of the cylindrical wall (31h) of the first housing member. The connecting portion (63) connects a distal end of the side portion (62) to the first housing member (31). The sealing portion (61) fits tightly with the cylindrical wall (31h) of the first housing member along its entire circumference. The open end of the first housing member (31) is reliably sealed by the second housing member (60). The shape of the cavity within the housing is adjusted reliably to a predetermined shape. Fluid can reliably be prevented from leaking between spaces divided by the rotor (40) and the separating member (50) within the housing and pump efficiency improves. <IMAGE>
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