公开(公告)号：US09944263B2

公开(公告)日：2018-04-17

申请号：US14912703

申请日：2014-08-07

Applicant: Bosch Corporation

Inventor： Yuji Hirata

IPC: B60T11/232 ,  B60T11/22 ,  F15B7/08 ,  B60T11/16

CPC classification number: B60T11/22 ,  B60T11/16 ,  B60T11/232 ,  F15B7/08

Abstract: An object is to provide a master cylinder that ensures the responsivity during brake actuation, improves a release delay during brake release, ensures the responsivity during automatic braking, and quickly releases the residual pressure in the hydraulic chamber.The master cylinder includes a cylinder body having a cylinder hole, a piston slidably inserted into the cylinder hole, the piston partitioning a hydraulic chamber, a communicating passage provided in the cylinder body, the communicating passage communicating with a reserver, a relief port formed in the piston, the relief port performing communication between the communicating passage and the hydraulic chamber, and a seal member housed in a recess portion in an inner peripheral surface of the cylinder hole of the cylinder body, the piston slidably passing through the seal member, the seal member performing sealing between the inner peripheral surface of the cylinder hole and an outer peripheral surface of the piston, the communicating passage communicating with the relief port during non-actuation, the piston moving to block the communicating passage from the relief port using the seal member during actuation, in which a flow passage control member for opening and closing the relief port is provided in a part of the relief port close to the hydraulic chamber.

公开(公告)号：US09657753B2

公开(公告)日：2017-05-23

申请号：US14126980

申请日：2011-06-17

Applicant: Dongqiang Luo ,  Richard J. Kriz, II

Inventor： Dongqiang Luo ,  Richard J. Kriz, II

IPC: B60T11/20 ,  F15B15/02 ,  B60T11/236 ,  B60T11/232 ,  B60T11/16

CPC classification number: F15B15/02 ,  B60T11/16 ,  B60T11/20 ,  B60T11/232 ,  B60T11/236

Abstract: A master cylinder assembly of the type comprises a housing (20) disposed along an axis (A) defining a chamber (22) having a cylindrical shape extending horizontally between an open end and a closed end. A first cylinder (42) and a second cylinder (44) are disposed for sliding movement axially along the axis. Each of the cylinders includes a cylindrical wall (48) defining a cylindrical bore (52). A piston (56) is disposed in each of the cylindrical bores. The cylindrical wall of each cylinder includes a cylinder ramp (70) to define a cylinder ramp shoulder (74). Each piston includes a piston ramp (76) to define a piston ramp shoulder (80). The piston ramp shoulder (80) of each piston and the cylinder ramp shoulder (74) of each cylinder radially engage one another in an assembled position to allow the cylinders (42, 44) and the pistons (56) to abut one another during the sliding movement axially along the axis within the chamber of the housing.

公开(公告)号：US09657752B2

公开(公告)日：2017-05-23

申请号：US13515898

申请日：2010-12-15

Applicant: Harald König ,  Andreas Bischoff ,  Peter Drott ,  Makato Inaba ,  Heinrich Kreh ,  Udo Jungmann ,  Filip Janosek

Inventor： Harald König ,  Andreas Bischoff ,  Peter Drott ,  Makato Inaba ,  Heinrich Kreh ,  Udo Jungmann ,  Filip Janosek

IPC: F15B7/10 ,  F15B15/00 ,  B60T11/10 ,  B60T11/16 ,  B60T11/232 ,  B60T11/236

CPC classification number: F15B15/00 ,  B60T8/38 ,  B60T11/101 ,  B60T11/16 ,  B60T11/232 ,  B60T11/236

Abstract: A master cylinder for a regulated braking system having at least one piston, which is movable in a housing and which is sealed from a pressure chamber by a sealing element arranged in a ring groove of the housing, which can be connected to an unpressurized supply chamber by control passages designed in the pistons. In order to reduce the flow resistance of the control passages at the same dead stroke, the control passages have a control edge designed parallel to a piston end face of at least one of the pistons.

公开(公告)号：US20170106849A1

公开(公告)日：2017-04-20

申请号：US15298167

申请日：2016-10-19

Applicant: MANDO CORPORATION

Inventor： Sang-Won YUN

IPC: B60T13/74 ,  B60T8/40 ,  B60T7/04

CPC classification number: B60T13/745 ,  B60T7/042 ,  B60T8/368 ,  B60T8/4081 ,  B60T11/232 ,  B60T11/236 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  B60T2270/82

Abstract: An electric brake system is disclosed. The electric brake system comprises an electronic control unit configured to control a hydraulic pressure supply device and valves on the basis of hydraulic pressure information and pedal displacement information and including a circuit board on which a plurality of electronic elements are mounted, and the hydraulic pressure supply device configured to generate hydraulic pressure using a rotational force of a motor that is activated in response to an electrical signal output from the electronic control unit, wherein the circuit board and a housing of the hydraulic pressure supply device contact each other to transfer heat generated at the plurality of electronic elements to the housing of the hydraulic pressure supply device.

公开(公告)号：US20170088107A1

公开(公告)日：2017-03-30

申请号：US15276322

申请日：2016-09-26

Applicant: MANDO CORPORATION

Inventor： Jae-Yoon KIM

IPC: B60T11/236 ,  B60T11/20

CPC classification number: B60T11/236 ,  B60T11/20 ,  B60T11/232

Abstract: Disclosed herein is a master cylinder for a brake system. The master cylinder for a brake system comprises a cylinder body in which a bore is formed, at least one piston provided to be movable forward and backward in the bore, a hydraulic chamber pressurized by the piston, an oil port connected to a reservoir and configured to supply oil to the hydraulic chamber of the cylinder body, and a sealing member installed in the cylinder body and configured to block a flow of oil between the oil port and the hydraulic chamber according to a movement of the piston, wherein the piston includes a piston groove having an inclined surface in contact with the sealing member and a plurality of piston holes formed along an outer circumferential surface of the piston groove configured to communicate the oil port with the hydraulic chamber.

公开(公告)号：US09550483B2

公开(公告)日：2017-01-24

申请号：US14362844

申请日：2012-12-14

Applicant: Robert Bosch GmbH

Inventor： Laurent Lhuillier ,  Marc Rodriguez

IPC: B60T11/22 ,  B60T11/20 ,  B60T11/232 ,  B60T11/224

CPC classification number: B60T11/22 ,  B60T11/20 ,  B60T11/224 ,  B60T11/232

Abstract: A brake fluid reservoir is connected to a master cylinder by a neck which is arranged in an upper chamber of the master cylinder. Holes extend through a surface of a piston, opening to a pressure chamber. The piston extends through a bore hole of the master cylinder. A drill hole extends through an interior wall of the master cylinder, opening into the bore hole, thereby providing communication between the fluid reservoir and the pressure chamber. A floating orifice plate is arranged within the upper chamber, between the neck of the brake fluid reservoir chamber and the drill hole, such that the orifice plate forms a baffle that limits a flow rate of liquid from the brake fluid reservoir chamber to the pressure chamber; and includes supports pressing against a surface of the interior wall of the master cylinder and arranged around the first side of the drill hole.

Abstract translation: 制动液储存器通过设置在主缸的上腔室中的颈部连接到主缸。 孔延伸穿过活塞的表面，通向压力室。 活塞延伸穿过主缸的钻孔。 钻孔延伸穿过主缸的内壁，通向钻孔中，从而在流体储存器和压力室之间提供连通。 浮动孔板布置在上腔室内，在制动液储存室的颈部和钻孔之间，使得孔板形成挡板，其限制液体从制动液储存腔到压力室的流速 ; 并且包括支撑在主缸的内壁的表面上并且布置在钻孔的第一侧周围的支撑件。

公开(公告)号：US20140165553A1

公开(公告)日：2014-06-19

申请号：US13996940

申请日：2011-12-01

Applicant: Marc Rodriguez ,  Olivier Bernadat ,  Laurent Lhuillier ,  Marc Noblet ,  Julien Gateau ,  Daniel Grech ,  Carole Charpentier

Inventor： Marc Rodriguez ,  Olivier Bernadat ,  Laurent Lhuillier ,  Marc Noblet ,  Julien Gateau ,  Daniel Grech ,  Carole Charpentier

IPC: B60T13/10

CPC classification number: B60T13/10 ,  B60T8/38 ,  B60T11/16 ,  B60T11/20 ,  B60T11/232

Abstract: A primary piston composed of a skirt and an intermediate back wall having a rear face receiving the servobrake thrustrod and a forward face for the telescoping rod and the spring pushing the secondary piston. The front of the skirt has longitudinal grooves open in front and closed in the rear. The thickness of the skirt beneath the grooves and the part of the skirt between two successive grooves in the peripheral direction foam a front face enabling the principal piston to push the secondary piston. The principal piston is made of a single piece of plastic material.

Abstract translation: 由裙部组成的主活塞和具有接收伺服制动器推力轴的后表面的中间后壁和用于伸缩杆的前表面以及推动次活塞的弹簧。 裙部的前部具有前部开放的纵向凹槽，并在后部封闭。 凹槽下方的裙部的厚度和在周向方向上的两个连续的凹槽之间的裙部的一部分使得主活塞能够推动第二活塞的前表面。 主活塞由单件塑料材料制成。

公开(公告)号：US08286427B2

公开(公告)日：2012-10-16

申请号：US12219673

申请日：2008-07-25

Applicant: Takato Ogiwara ,  Takayuki Kinoshita

Inventor： Takato Ogiwara ,  Takayuki Kinoshita

IPC: F15B7/08

CPC classification number: B60T11/232

Abstract: In a master cylinder, a supply passage for supplying operating liquid from a reservoir (2) to a pressure chamber (6) is provided in a cylinder body (3) coupled with the reservoir. A bypass passage (37) for bypassing the supply passage and connecting the reservoir and the pressure chamber is further provided, and a check valve (34) adapted to open when a pressure in the pressure chamber is lower than that in the reservoir is disposed in the bypass passage. A valve case (38) containing a valve body (41) of the check valve includes a valve seat (40) and a cylindrical wall (45) for slidably guiding the valve body which are integrally formed as a single member.

Abstract translation: 在主缸中，在与储存器联接的缸体（3）中设置有用于将操作液体从储存器（2）供应到压力室（6）的供给通道。 还设置有用于绕过供给通道并连接储液器和压力室的旁路通道（37），并且当压力室中的压力低于储液器中的压力时，设置有止回阀（34） 旁路通道。 包含止回阀的阀体（41）的阀壳（38）包括阀座（40）和用于滑动地引导阀体的圆柱形壁（45），该阀体一体地形成为单个构件。

公开(公告)号：US20120248861A1

公开(公告)日：2012-10-04

申请号：US13434999

申请日：2012-03-30

Applicant: Yoshihiro Miyata ,  Shigemitsu Nohira

Inventor： Yoshihiro Miyata ,  Shigemitsu Nohira

IPC: B60T13/128 ,  B60T13/16

CPC classification number: B60T13/686 ,  B60T8/4275 ,  B60T8/441 ,  B60T11/232 ,  B60T13/145

Abstract: A fluid pressure booster and a fluid pressure brake apparatus having the same are provided. The fluid pressure booster includes an auxiliary fluid pressure source having a pump and a pressure accumulator, a pressure adjusting device which adjusts fluid pressure supplied from the auxiliary fluid pressure source to a value corresponding to an operating amount of a brake operation member by displacement of a spool valve and introduces the same into a boost chamber, a boost piston which receives the fluid pressure introduced into the boost chamber to generate assist force and operates a master piston of a master cylinder by assisted force, and a displacement absorption member which is provided at a position to which thrust force of the master piston is applied, and which is compressed in an axial direction when transfer power between the boost piston and the master piston exceeds a setting value.

Abstract translation: 提供一种流体压力增压器和具有该流体压力增压器的流体压力制动装置。 所述液压增压器包括具有泵和蓄压器的辅助流体压力源，压力调节装置，其通过将所述辅助流体压力源供给的流体压力调整到对应于制动操作构件的操作量的值 滑阀，并将其引入升压室，增压活塞，其接收引入增压室的流体压力以产生辅助力并通过辅助力操作主缸的主活塞;以及位移吸收构件，其设置在 施加主活塞的推力的位置，当增压活塞和主活塞之间的传递动力超过设定值时，该位置被沿轴向压缩。

公开(公告)号：US20120152673A1

公开(公告)日：2012-06-21

申请号：US12969790

申请日：2010-12-16

Applicant: CHUN-CHIN WANG

Inventor： CHUN-CHIN WANG

IPC: B62L3/02 ,  B60T11/10 ,  B60T7/08

CPC classification number: B60T7/102 ,  B60T11/165 ,  B60T11/18 ,  B60T11/232

Abstract: A brake master cylinder of the invention is to dispose a main oil cylinder and an oil storing space on a handlebar base. In addition, a sleeve engaged with the main oil cylinder is disposed in the oil storing space. The one end of the oil storing space has a fastening seat passed by a draw bar linked to the brake handlebar, and a positioning sheath of the fastening seat is utilized to engage with the sleeve. A leakage prevention component is disposed between the fastening seat and the handlebar base. A bushing integrally extended from the leakage prevention component is utilized to encapsulate the positioning sheath of the fastening seat and the sleeve. Accordingly, the brake master cylinder having convenient assembly and better sealing effect for hydraulic oil is obtained.

Abstract translation: 本发明的制动主缸应在主杆底座上设置主油缸和储油空间。 此外，与主油缸接合的套筒设置在储油空间中。 储油空间的一端具有通过与制动把手连接的牵引杆通过的紧固座，紧固座的定位护套用于与套筒接合。 防漏部件设置在紧固座和把手座之间。 使用从防漏部件整体延伸的衬套来封装紧固座和套筒的定位护套。 因此，获得了对于液压油具有方便的组装和更好的密封效果的制动主缸。