Rotary swash plate hydraulic pump
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsShinji Nishida, Isamu Yoshimura, Yusei Miyamoto, Satoru Takao
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Abstract
This rotary swash plate hydraulic pump includes: a casing including an inlet passage; a cylinder block disposed in the casing so as to prevent relative rotation of the cylinder block and including a plurality of cylinder bores connected to the inlet passage; a plurality of pistons each of which is inserted into a corresponding one of the plurality of cylinder bores; and a rotary swash plate that is housed in the casing so as to be rotatable about an axis and reciprocates each of the plurality of pistons. The inlet passage includes a plurality of inlet ports through which a working fluid is drawn.
Claims7
A rotary swash plate hydraulic pump comprising:
- a casing including an inlet passage;
- a cylinder block disposed in the casing so as to prevent relative rotation of the cylinder block and including a plurality of cylinder bores connected to the inlet passage;
- a plurality of pistons each of which is inserted into a corresponding one of the plurality of cylinder bores;
- a rotary swash plate that is housed in the casing so as to be rotatable about an axis and reciprocates each of the plurality of pistons;
- and
- a variable capacity mechanism that changes an effective stroke length of each of the plurality of pistons by adjusting opening and closing of the corresponding one of the plurality of cylinder bores, wherein
- the inlet passage includes a plurality of inlet ports through which a working fluid is drawn,
- a discharge passage including a discharge port through which the working fluid is discharged is formed in an outer peripheral surface of the casing,
- the plurality of cylinder bores are arranged about the axis in the cylinder block, and
- the variable capacity mechanism is positioned inward of the plurality of cylinder bores in the cylinder block.
Dependencies are inferred from the claim text.