Piston pump for brake system
AssigneeHyundai Mobis Co., Ltd.
InventorYoung Chang CHOI
Life of this patent
Estimating the term…
Abstract
According to at least one aspect, the present disclosure provides a piston pump comprising: a piston unit configured to reciprocate by driving of a motor cam; a sleeve unit disposed to surround at least a part of the piston unit and having a space in which brake oil is stored; and a check valve unit facing the sleeve unit and discharging the brake oil to an outside of the sleeve unit when a pressure of the brake oil increases, wherein the piston unit includes a first piston having a first end in contact with the motor cam and reciprocating, a second piston having a first end coupled to a second end of the first piston and configured to press the brake oil, and a spring cap coupled to a second end of the second piston and disposed to accommodate an inlet spring therein.
Claims12
A piston pump comprising:
- a piston unit configured to reciprocate in a piston housing by driving of a motor cam;
- a sleeve unit disposed to surround at least a part of the piston unit and having an accommodation space in which brake oil is stored;
- and
- a check valve unit disposed to face the sleeve unit and configured to discharge the brake oil to an outside of the sleeve unit when a pressure of the brake oil stored in the accommodation space of the sleeve unit increases,
- wherein the piston unit includes a first piston having a first end in contact with the motor cam and configured to reciprocate, a second piston having a first end coupled to a second end of the first piston and operating in conjunction with reciprocating movement of the first piston to press the brake oil stored in the accommodation space of the sleeve unit, and a spring cap coupled to a second end of the second piston and disposed to accommodate an inlet spring therein.
A piston pump comprising:
- a piston unit configured to reciprocate in a piston housing by driving of a motor cam;
- a sleeve unit disposed to surround at least a part of the piston unit, and having an accommodation space in which brake oil is stored;
- and
- a check valve unit disposed to face the sleeve unit and configured to discharge the brake oil to an outside of the sleeve unit when a pressure of the brake oil stored the accommodation space of the sleeve unit increases,
- wherein the piston unit includes a first piston having a first end in contact with the motor cam and configured to reciprocate, a second piston having a first end press-fitted and coupled to a second end of the first piston and operating in conjunction with reciprocating movement of the first piston to press the brake oil stored in the accommodation space of the sleeve unit, and a spring cap disposed to accommodate an inlet spring therein and coupled to a second end of the second piston.
Dependencies are inferred from the claim text.