| 摘要 |
A provided plunger pump includes a swash cam which rotates by power and has an inclined plunger contact surface for a rotary shaft; at least one plunger which is elevated according to the rotation of the swash cam by being elastically biased to be in contact with the plunger contact surface separated apart from the rotary shaft of the swash cam and has a rolling contact unit which rolls by being in contact with the plunger contact surface according to the rotation of the swash cam; a plunger support plate which supports at least one plunger; a pump chamber which is fixated to the plunger support plate and has a pressurizing space in which a fluid inputted from the outside is pressurized according to the elevation of at least one plunger; an inlet pipe which guides the fluid inputted from the outside to the pump chamber; and an outlet pipe which discharges the fluid pressurized in the pump chamber to the outside. The pump chamber has an inlet valve which inputs the fluid to the pressurizing space by being closed when the plunger ascends and being opened when the plunger descends, and an outlet valve which discharges the pressurized fluid from the pressurizing space to the outside by being opened when the plunger ascends and being closed when the plunger descends. |
