公开(公告)号：US20120326493A1

公开(公告)日：2012-12-27

申请号：US13532031

申请日：2012-06-25

申请人： Koichi OKAMURA ,  Chikage NAKAMURA ,  Tomoo HARADA

发明人： Koichi OKAMURA ,  Chikage NAKAMURA ,  Tomoo HARADA

IPC分类号： B60T13/68 ,  B60T13/66 ,  B60T13/16 ,  B60T13/128 ,  B60T13/14

CPC分类号： B60T8/368 ,  B60T13/146 ,  B60T13/686

摘要： A brake fluid pressure control device includes: a electromagnetic control valve; a electromagnetic booster valve; a electromagnetic decompression valve; a pump, which are incorporated in a single housing; and an electronic control unit, wherein, the pump draws up at least one of brake fluid, which is supplied from the main reservoir, and brake fluid, which is discharged from the wheel cylinder, and then the pump returns the drawn brake fluid to an area that extends from the electromagnetic control valve of a main flow path up to the electromagnetic booster valve; and a fluid reservoir, which communicates with both the decompression path and an intake port of the pump, and which is arranged inside the housing so that the brake fluid in the fluid reservoir flows toward the intake port of the pump by gravity.

摘要翻译： 一种制动液压控制装置，包括：电磁控制阀; 电磁增压阀; 电磁减压阀; 泵，其被并入单个壳体中; 以及电子控制单元，其中，泵吸入从主容器供给的制动流体和从轮缸排出的制动流体中的至少一个，然后泵将抽出的制动流体返回到 从主流路的电磁控制阀向电磁增压阀延伸的区域; 以及与减压路径和泵的进气口连通的流体储存器，并且布置在壳体内部，使得流体储存器中的制动流体通过重力流向泵的进气口。

公开(公告)号：US20080206081A1

公开(公告)日：2008-08-28

申请号：US12027780

申请日：2008-02-07

申请人： Tomoo HARADA

发明人： Tomoo HARADA

IPC分类号： F04B53/12 ,  F04B7/04

CPC分类号： F04B1/0408 ,  B60T8/4031 ,  F04B23/06 ,  F04B53/121 ,  F04B53/143

摘要： A piston pump includes a pump mechanism for changing a volume of a pump chamber to move a piston in a housing, and a feed mechanism that has a feed ring attached to a circular groove portion of the piston to be slaved with a movement of the piston. The feed mechanism is located in a suction passage from a suction port to a pump chamber, and the piston has a flange portion protruding radially outwardly. An inner peripheral surface of the feed ring has an inner-diameter enlarged portion extending radially outwardly to have an enlarged passage portion between the inner peripheral surface of the feed ring and the outer peripheral surface of the piston, and a valve portion for opening and closing a suction passage is constructed of an end portion of the inner diameter enlarged portion of the feed ring and the flange portion.

摘要翻译： 活塞泵包括泵机构，用于改变泵室的体积以移动壳体中的活塞;以及进给机构，其具有附接到待活塞的圆形槽部分的进给环，所述进给环具有活塞的活动 。 进料机构位于从吸入口到泵室的吸入通道中，活塞具有径向向外突出的凸缘部。 进料环的内周面具有径向向外延伸的内径扩大部，在进料环的内周面和活塞的外周面之间具有扩大的通道部分，以及用于打开和关闭的阀部分 吸入通道由进料环的内径扩大部分的端部和凸缘部分构成。

公开(公告)号：US20110115283A1

公开(公告)日：2011-05-19

申请号：US12945302

申请日：2010-11-12

申请人： Tomoo HARADA ,  Tsunekazu Nishida

发明人： Tomoo HARADA ,  Tsunekazu Nishida

IPC分类号： F16J9/00 ,  F04B53/12 ,  F16J9/28 ,  B60T13/16

CPC分类号： F04B1/0408 ,  B60T8/4031 ,  F04B53/126 ,  F04B53/143

摘要： A sealing structure is provided wherein an annular groove formed in a pump cylinder of a piston pump receives therein a seal ring made of a synthetic resin material and having an inner circumferential surface fluid-tightly contacting an outer circumferential surface of the pump piston and an O-ring arranged on the outer circumferential side of the seal ring and urging the seal ring radially inward. The seal ring is formed at its axial end portions with flange portions for preventing the O-ring from coming off. In the state that the seal ring and the O-ring are fitted in the annular groove, the flange portions do not receive a load from the O-ring, and a surface pressure which the seal ring applies to the outer circumferential surface of the piston at an axial center portion thereof is set to be higher than surface pressures which it applies to the outer circumferential surface of the piston at axial end portions thereof.

摘要翻译： 提供一种密封结构，其中形成在活塞泵的泵筒中的环形槽容纳由合成树脂材料制成的密封环，并且具有与泵活塞的外周表面流体紧密接触的内周表面和O 设置在密封环的外周侧并径向向内推动密封环。 密封环在其轴向端部处形成有用于防止O形环脱落的凸缘部分。 在密封环和O形环安装在环形槽中的状态下，凸缘部分不会从O形环接收负载，并且密封环施加到活塞外周表面的表面压力 其轴向中心部分被设定为高于其在轴向端部处对活塞的外周面施加的表面压力。