Gear pump and gear pump operating method
AssigneeKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
InventorsShin IWASAKI, Kazuo IRITANI
Life of this patent
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Abstract
In order to highly precisely adjust a gap between a bearing and a gear rotor by a simple configuration, a gear pump of the present invention includes: a casing that includes an inlet and an outlet; a pair of gear rotors each of which is formed by integrating a gear portion with a shaft portion and which is disposed so as to engage with each other inside the casing; a bearing portion that supports the shaft portion so that the gear rotor is rotatable, the bearing portion being movable in the thrust direction of the gear rotor; and a gap adjustment unit that moves the bearing portion in the thrust direction so as to adjust a gap between the gear rotor and the bearing portion.
Claims10
A gear pump comprising:
- a casing that includes an inlet and an outlet;
- a pair of gear rotors each of which is formed by integrating a gear portion with a shaft portion and which is disposed so as to engage with each other inside the casing;
- a bearing portion that supports the shaft portion so that the gear rotor is rotatable, the bearing portion being movable in the thrust direction of the gear rotor;
- and
- a gap adjustment unit that moves the bearing portion in the thrust direction so as to adjust a gap between the gear rotor and the bearing portion.
A method of operating a gear pump including a casing that includes an inlet and an outlet, a pair of gear rotors each of which is formed by integrating a gear portion with a shaft portion and which is disposed so as to engage with each other inside the casing, and a bearing portion that supports the shaft portion so that the gear rotor is rotatable and is movable in the thrust direction as the axial direction of the gear rotor, the method comprising:
- measuring the temperatures of the bearing portion and the casing:
- and
- moving the bearing portion in the thrust direction based on the measured temperatures of the bearing portion and the casing.
Dependencies are inferred from the claim text.