公开(公告)号：US20220185257A1

公开(公告)日：2022-06-16

申请号：US17531502

申请日：2021-11-19

申请人： HYUNDAI MOBIS Co., Ltd.

发明人： Young Chang CHOI

IPC分类号： B60T17/02 ,  B60T11/236 ,  B60T13/16 ,  F04B1/12 ,  F04B9/04 ,  F04B53/10 ,  F04B53/12 ,  F04B53/14 ,  F16D65/22 ,  F16K15/04

摘要： 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.

公开(公告)号：US20160160847A1

公开(公告)日：2016-06-09

申请号：US14689873

申请日：2015-04-17

申请人： Hyundai Mobis Co., Ltd.

发明人： Young Chang CHOI

IPC分类号： F04B3/00 ,  F04B53/14 ,  F04B53/16 ,  F04B53/10

CPC分类号： F04B53/145 ,  F04B1/0408 ,  F04B1/0452 ,  F04B53/12 ,  F04B53/126 ,  F04B53/14

摘要： A piston pump for a brake including: a piston housing; an outer piston which rectilinearly reciprocates in the piston housing; an inner piston which is coupled to an inner portion of the outer piston, and rectilinearly reciprocates together with the outer piston in a state in which the inner piston is coupled to the inner portion of the outer piston, or rectilinearly reciprocates alone in a state in which the outer piston is stopped; an outer return spring which supports a tip portion of the outer piston; an inner return spring which supports a tip portion of the inner piston; and a piston rod spring which supports rear end portions of the outer piston and the inner piston.

摘要翻译： 一种用于制动器的活塞泵，包括：活塞壳体; 在活塞壳体中直线往复运动的外活塞; 内活塞，其联接到外活塞的内部，并且在内活塞联接到外活塞的内部部分的状态下与外活塞一起直线往复运动，或者以一定的状态直接往复运动 外活塞停止; 外部复位弹簧，其支撑外部活塞的末端部分; 内部复位弹簧，其支撑内部活塞的尖端部分; 以及支撑外活塞和内活塞的后端部的活塞杆弹簧。