Patent ID: 11946491
Assignee: NIDEC CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A liquid feeder comprising:
a pump; and
a replenisher; wherein
the pump includes:
an inflow port into which a liquid flows;
an outflow port from which the liquid having flowed in from the inflow port flows out;
a communication flow path that communicates between the inflow port and the outflow port;
a pump to circulate the liquid; and
a pump chamber located midway in the communication flow path and in which the pump is provided;

the replenisher includes:
 a cylinder that is a bottomed tube including an opening on a side adjacent to the communication flow path, the opening being connected to the communication flow path, and that is capable of accommodating the liquid in at least a portion of the cylinder;
 a seal that is housed in the cylinder in a movable manner along the cylinder, and seals the liquid in the cylinder; and
 a pressurizer to pressurize the seal toward the pump chamber, the pressurizer being movable in a pressurizing direction;
the pump chamber includes a suction port through which the liquid to be supplied to the pump is suctioned; and
the suction port opposes the replenisher in the pressurizing direction.