Internally rotating gear pump
AssigneeDaido Machinery Ltd.
InventorsYusuke Ota, Shoji Torii
Life of this patent
Estimating the term…
Abstract
In an internally rotating gear pump, a pinion having external teeth and a gear having internal teeth are housed in a casing. The pinion and the gear rotate while the internal teeth and the external teeth are meshed with each other. The pinion is a driving gear that is coupled to a rotating shaft receiving a rotating force from an external motor, such that the pinion and the rotating shaft are rotationally driven in an integrated manner when the rotating shaft is driven. The gear is a driven gear, and is rotatably supported on a gear pin provided to the casing via a gear bush serving as a slide bearing.
Claims7
An internally rotating gear pump in which a pinion having external teeth and a gear arranged eccentrically to the pinion and having internal teeth meshed with the external teeth of the pinion are housed in a casing having a suction port and a discharge port, the internally rotating gear pump being configured to suck a fluid and discharge the fluid by rotating the pinion and the gear while the internal teeth and the external teeth are meshed with each other, the internally rotating gear pump comprising:
- a rotating shaft rotatably supported in the casing and rotationally driven by an external actuator;
- and
- a gear pin fixedly mounted to the casing, wherein
- the pinion is coupled to the rotating shaft such that the pinion and the rotating shaft are rotationally driven in an integrated manner when the rotating shaft is driven, and
- the gear is rotating around the gear pin and supported on the gear pin via a gear bush functioning as a slide bearing between the gear pin and the gear.
Dependencies are inferred from the claim text.