| 摘要 |
A fluid pump includes a housing body mounted to a mounting plate in a liquid-tight manner, a pump shaft having a journal portion rotatably supported on the mounting plate and a cylindrical cam portion integrally formed with one end of the journal portion located in the housing body, an impeller mounted on the other end of the pump shaft immersed in hydraulic fluid at a backside of the mounting plate, a drive shaft rotatably mounted within the housing body to be applied with a drive torque and positioned coaxially with the journal portion of the pump shaft, the drive shaft being formed with an eccentric bore the center axis of which is radially displaced from the center axis of the journal portion, a carrier having a cylindrical cap portion rotatably coupled with the cylindrical cam portion of the pump shaft and a shaft portion integrally formed with the cylindrical cap portion coaxially therewith and rotatably coupled within the eccentric bore of the drive shaft, and a diaphragm of elastic material coupled at one end thereof with the cylindrical cap portion of the carrier and fixed at the other end thereof to an internal surface of the mounting plate in a liquid-tight manner to seal the journal portion and cylindrical cam portion of the pump shaft located in the housing body.
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