Holder For Reserve Liquid Feeds Master Patents (Class 60/585)
  • Patent number: 10744988
    Abstract: The reservoir tank includes a reservoir body which reserves a fluid in an inner portion thereof formed to be in a hollow box shape. The reservoir body includes a port extending outward, a reservoir chamber which reserves the fluid and a port chamber which volume is smaller than that of the reservoir chamber and is in fluid communication with the port and a first communication passage positioned at a portion lower than a changeable liquid surface of the fluid reserved in the reservoir chamber in a vertical direction and provided at the first partition portion to allow the fluid communication between the reservoir chamber and the port chamber and wherein the port chamber and the port are kept being a state in which they are filled with the fluid supplied from the reservoir chamber via the first communication passage.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 18, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Sekine, Ryosuke Sakakibara, Jun Matsushima, Akira Omizu, Koji Masuda, Akira Sakai, Hideki Sugawa
  • Patent number: 10668908
    Abstract: A brake fluid reservoir for a vehicle comprising: a shell defining a main chamber for containing a quantity of brake fluid for one or more vehicle brake circuits having an outer surface; a fill opening defined by the shell in an upper portion of the outer shell, the fill opening in fluid communication with the main chamber and closable by a cap to close the main chamber from the surrounding environment; outlet ports defined by the shell in a lower portion of the outer shell, the outlet ports in fluid communication with the main chamber; and a channel located along at least a section of the outer surface between the fill opening and the outlet ports, wherein the channel is configured to collect fluid when fluid exits the opening along the outer surface.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: June 2, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Alejandro Martinez
  • Patent number: 10272892
    Abstract: A hydraulic unit for producing brake pressure for a hydraulic motor-vehicle brake system, including a main body, a cavity arranged in the main body and having at least one first bore segment with a defined target diameter, in which a cylindrical piston moveable in the axial direction is arranged, which, in the cavity, bounds at least one pressure chamber filled with a hydraulic fluid, for producing brake pressure in a brake circuit, and at least a first and a second sealing element for sealing off the cylindrical piston, which sealing elements are arranged at an axial distance from each other. In order to provide a hydraulic unit that can be produced more effectively and economically while the technical requirements nevertheless remain fulfilled, the material of the main body in a surface layer of an inner wall of the cavity in the bore segment has a material microstructure that is work-hardened.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 30, 2019
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Lothar Brandt, Mike Cichy, Björn Klein, Jörg Loke, Erkan Sarac
  • Patent number: 10046829
    Abstract: A hydraulic operating device is provided. The disc brake caliper may include a brake lever pivotable on a pivot axis, a hydraulic cylinder having a cylinder axis and a reservoir arranged so as to at least partly overlap the hydraulic cylinder as seen from a first direction perpendicular to the pivot axis, the reservoir having a reservoir axis which has a different orientation than the cylinder axis as viewed from the first direction.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 14, 2018
    Assignee: Shimano Inc.
    Inventors: Mototsugu Nakai, Shinya Hirotomi, Daisuke Noborio
  • Patent number: 9956945
    Abstract: A reservoir tank mounting section includes a reservoir tank configured to store a hydraulic fluid of a brake apparatus, and an auxiliary machine case. The auxiliary machine case has a tank supporting section configured to hold the reservoir tank. The tank supporting section is constituted by a recessed section in which an outer surface of the auxiliary machine case is recessed inward. The tank supporting section is formed substantially along an outer surface shape of the reservoir tank and has an outer surface covering wall configured to cover an outer surface of the reservoir tank.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: May 1, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takuma Koishikawa, Toru Sakai, Masayuki Hiramaru
  • Patent number: 9902383
    Abstract: A master brake cylinder arrangement (10) for a motor vehicle brake system, comprising a master brake cylinder housing (12) with a cylindrical recess (28), at least one pressure piston (30, 32) which is displaceable and sealingly guided in the cylindrical recess (28) of the master brake cylinder housing (12), a fluid reservoir (14) which is fluidically coupled to the master brake cylinder housing (12) via a connecting region (22) and which serves for storing brake fluid, wherein the at least one pressure piston (30, 32) together with the master brake cylinder housing (12) sealingly encloses a pressure chamber (38, 40) which, as a function of the position of the associated pressure piston (30, 32), is fluidically connected to or separated from the fluid reservoir (14), wherein furthermore the at least one pressure chamber (38, 40) can be or is fluidically coupled to a fluid circuit of the motor vehicle brake system, wherein the fluid reservoir (14) in the connecting region (22) is received, in a manner sealed b
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: February 27, 2018
    Assignee: LUCAS AUTOMOTIVE GMBH
    Inventors: David Lopéz Larequi, Hans-Martin Giese
  • Patent number: 9700689
    Abstract: A delivery system includes a holding chamber with first, second and third openings, and independently moveable first, second and third flow control members. A delivery system includes a holding chamber and a flow control member including a flap pivotable from an at rest position in a direction toward an outlet of a user interface and away from an output end of the holding chamber in response to a pressure being applied thereto.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: July 11, 2017
    Assignee: Trudell Medical International
    Inventors: Sarah Bruce, James N. Schmidt
  • Patent number: 9522663
    Abstract: A hydraulic-pressure generator including: primary and secondary pistons displaced corresponding to displacement of a brake pedal; a first pressure chamber communicating with a first hollow in the primary piston and generating in brake fluid hydraulic pressure corresponding to the displacement of the primary piston; a second pressure chamber communicating with a second hollow in the secondary piston and generating in the brake fluid hydraulic pressure corresponding to the displacement of the secondary piston; one or more first communication openings formed in a peripheral wall surrounding the first hollow; and second communication openings formed in a peripheral wall surrounding the second hollow. The flow rate of the brake fluid through the one or more first communication openings is different from the flow rate of the brake fluid through the second communication openings.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 20, 2016
    Assignees: Honda Motor Co., Ltd., Autoliv Nissin Brake Systems Japan Co., Ltd.
    Inventors: Takaaki Ohnishi, Motoyasu Nakamura, Masaki Kuramochi
  • Patent number: 9079573
    Abstract: An assembly includes a fluid reservoir and a master cylinder for a motor vehicle hydraulic brake system, the fluid reservoir being fastened to the master cylinder by a releasable connection and including at least one connection fitting, which is received in a corresponding connection aperture of the master cylinder. The fluid reservoir includes one or more components, which under a defined force applied to the fluid reservoir, allow a movement of at least one part of the fluid reservoir in the direction of the master cylinder.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: July 14, 2015
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Hans-Jürgen Neumann, Peter Tandler, Swen Ottmann, David Sibr, Stepan Vit
  • Publication number: 20150135704
    Abstract: A brake fluid reservoir includes in its upper portion a bottleneck with a thread and a top for receiving a cap with an edge and a top. The top of the bottleneck has channel opens into the atmosphere, one end of the channel leading into the atmosphere, one end of the channel leading into the interior of the bottleneck and the other end communicating with the outside atmosphere via a cavity.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Inventors: Vincent Maury, Jean-Michel L'aot, Sylvain Lenczner
  • Publication number: 20150113977
    Abstract: A master brake cylinder arrangement (10) for a motor vehicle brake system, comprising a master brake cylinder housing (12) with a cylindrical recess (28), at least one pressure piston (30, 32) which is displaceable and sealingly guided in the cylindrical recess (28) of the master brake cylinder housing (12), a fluid reservoir (14) which is fluidically coupled to the master brake cylinder housing (12) via a connecting region (22) and which serves for storing brake fluid, wherein the at least one pressure piston (30, 32) together with the master brake cylinder housing (12) sealingly encloses a pressure chamber (38, 40) which, as a function of the position of the associated pressure piston (30, 32), is fluidically connected to or separated from the fluid reservoir (14), wherein furthermore the at least one pressure chamber (38, 40) can be or is fluidically coupled to a fluid circuit of the motor vehicle brake system, wherein the fluid reservoir (14) in the connecting region (22) is received, in a manner sealed b
    Type: Application
    Filed: March 5, 2013
    Publication date: April 30, 2015
    Applicant: Lucas Automotive GmbH
    Inventors: David Lopéz Larequi, Hans-Martin Giese
  • Patent number: 8997481
    Abstract: In a reservoir tank (5) of the present invention, a hydraulic fluid movement deterring wall (26) is disposed integrally with an upper half body (9) and extending toward a radial direction center of a cylindrical upper half body neck section (24) on a curved portion at a boundary between an inner peripheral surface (24a) of the cylindrical upper half body neck section (24) and an inner surface (25a1) of a ceiling portion (25a) of an upper half body trunk section (25) or on the inner peripheral surface (24a) of the upper half body neck section (24). The movement of the hydraulic fluid frontward (toward a hydraulic fluid inlet (10)) in a hydraulic fluid storage chamber 13 at a time when the reservoir tank (5) is tilted frontward is controlled by this hydraulic fluid movement deterring wall (26).
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: April 7, 2015
    Assignee: Bosch Corporation
    Inventor: Toshiyuki Takahashi
  • Patent number: 8991171
    Abstract: A cup for a master cylinder coming into contact with its primary piston or its secondary piston and subjected to the pressure of the brake fluid of the primary chamber and of the secondary chamber. The cup has two large grooves bordered: by a rib between the heel and the first groove, by a rib between the first groove and the second groove, by a rib between the second groove and the small grooves, these ribs being in protrusion relative to the cylindrical surface of the heel in the mounted position of the cup in order to separate the heel from the surface of the piston and form, between the heel and the surface of the piston, a gap with a film of brake fluid. Master cylinder notably a tandem master cylinder fitted with such cups.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: March 31, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Olivier Bernadat, Marc Noblet, Julien Gateau, François Gaget, Marc Rodriguez
  • Publication number: 20150082786
    Abstract: A cylinder device, which is provided with: a substrate having a cylinder hole and a reservoir union port; a piston which is inserted into the cylinder hole; a regulation member which regulates the rearward limit of the piston; a reservoir having a liquid supply part; and a seal member which is for the reservoir and which is externally fitted to the liquid supply part. Therein: the substrate comprises a mounting hole and a first communication hole which open to the reservoir union port and the cylinder hole; the regulation member is inserted into the mounting hole (11h); and the liquid supply part has a cut-out section and a tip section arranged so as to face the regulation member. This structure enables the number of components to be reduced, reduces the size of the substrate, and also prevents air from collecting inside the reservoir union port.
    Type: Application
    Filed: March 29, 2013
    Publication date: March 26, 2015
    Inventors: Kazuaki Murayama, Takaaki Ohnishi, Nobuyuki Kobayashi
  • Publication number: 20150007559
    Abstract: In a system including a reservoir tank RSV integral with a master cylinder M/C, an inlet fluid passage 16 for connecting an inlet portion 22 of a pump P to the reservoir tank RSV, a pressure reducing fluid passage 32 that connects the inlet fluid passage 16 to wheel cylinders W/C and a normally closed pressure reducing vale 30 that is connected to the pressure reducing fluid passage 32 and opened when it is intended to depressurize a brake fluid to in the wheel cylinders thereby to return the brake fluid to the reservoir tank through the inlet fluid passage 16, there is employed a normally closed reservoir shutting valve 31 that is connected to the pressure reducing valve 30 in series with respect to the wheel cylinders W/C and the reservoir tank RSV.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 8, 2015
    Inventor: Toshiya Oosawa
  • Patent number: 8899039
    Abstract: Provided is a reservoir having first and second partitions. The first partitions partition a brake reservoir chamber and clutch reservoir chambers. The first partitions extend in a length direction of the vehicle and are formed uprightly along the sidewalls. The second partitions connect the first partitions and the sidewalls adjacent to the first partitions. The second partitions are formed uprightly at middle positions of the respective sidewalls in the length direction of the vehicle. The brake reservoir chamber and the clutch reservoir chambers are formed to face the sidewalls.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: December 2, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Tomonori Mouri
  • Patent number: 8893859
    Abstract: A hydraulic brake controller does not only dispose a first oil-return hole, which is connected to an oil storing space, at a stroke place of allowing a piston to reciprocate in a main oil cylinder, but also disposes a regulating screw, which stretches the first oil-return hole, on a controller main body. The speed of returning hydraulic oil to the oil storing space can be controlled by simply changing the degree of the regulating screw stretching the oil-return hole so that time of allowing the piston passing through the oil-return hole to completely impose the braking force on the brake pad can be extended or reduced, thereby achieving a goal of conveniently regulating the braking sensitivity.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: November 25, 2014
    Assignee: Heng Tong Machinery Co., Ltd.
    Inventor: Chun-Chin Wang
  • Publication number: 20140325973
    Abstract: A primary piston assembly for a master brake cylinder of a braking system of a vehicle, including a first primary piston component having a first piston element to which a driver braking force is transmittable in such a way that a pressure chamber volume of a pressure chamber of a master brake cylinder of the braking system which is fillable with liquid is reducible by moving the first piston element with the aid of the driver braking force, and a second primary piston component having a second piston element to which the first braking assisting force is transmittable in such a way that the pressure chamber volume of the pressure chamber is reducible by moving the second piston element with the aid of the first braking assisting force.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 6, 2014
    Applicant: ROBERT BOSCH GmbH
    Inventors: Jochen Mayer, Frank Overzier
  • Patent number: 8840196
    Abstract: A brake system for a motor vehicle which simplifies the hydraulic design and avoids a vacuum prevailing over a relatively long period of time. The first hydraulic unit has a suction volume, which is connected to the suction side of the pump and which, in the event of a change in the pressure on the suction side of the pump, provides a pressure and volume equalization by means of the brake fluid stored in the suction volume, with an elastic element.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: September 23, 2014
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Michael Hitzel, Michael Jung, Bernhard Hauke, Ronald Kley, Stefan A. Schmitt
  • Publication number: 20140196453
    Abstract: Disclosed herein is a reservoir tank of a brake master cylinder. The reservoir tank includes a reservoir body to store oil therein, the reservoir body being provided with an oil introduction port, a filter interrupted by a fixing step arranged at a lower portion of the oil introduction port, and a reservoir cap arranged at an upper portion of the oil introduction port, wherein a vent member is provided between the fixing step and the filter, to allow inflow of air through during introduction of oil.
    Type: Application
    Filed: January 9, 2014
    Publication date: July 17, 2014
    Applicant: MANDO CORPORATION
    Inventor: Soo-Yong JEON
  • Publication number: 20140144131
    Abstract: An improved diaphragm type chemical dosing pumps can be designed as both a variable displacement accurate dosing pump and a fixed displacement accurate dosing pump. The improved dosing pump provides a required supply of pressurized fluid, to be called hereafter as process fluid, to an injection point against varying gas or liquid pressures. By eliminating the use of elastomeric sealing, the failing of the pump due to seal wear is eliminated. An internal pressure relief valve protects the pump mechanicals from premature failure. Use of a spring assisted suction assists positive suction for very accurate dosing. The working fluid is a driver fluid that is used to lubricate working components of the pump. The angled ports minimize friction losses to further improve pump efficiency and also eliminate building up of air pockets.
    Type: Application
    Filed: July 27, 2011
    Publication date: May 29, 2014
    Applicant: Delaware Capital Formation, Inc.
    Inventors: Sudipta Sarker, John J. Kavalam
  • Patent number: 8667793
    Abstract: Reservoir in which the walls (111, 121) and the partitions (112, 122) are assembled by thermowelding the edges together with the exception of the edges (113a, 123a) of the well elements (113, 123), the edge (113a) of the upper element (113) and the edge (123a) of the lower element (123) of the well (104) have complementary shapes producing, by assembly under the pressure exerted by bringing together and welding the walls (111, 121) and the partitions (113, 123) of the reservoir (100), a fluid-tight joint between the edges of the two well elements, without generating projections that are deformed toward the interior of the well. The thermowelding hotplate (140) has a cut-out (143) along the line of the well elements (113, 123) so as to leave the edge (113a, 123a) of the well elements out of contact when the edge (111a, 121a) of the walls (111, 121) and that (112a, 122a) of the partitions (112, 122) of each of the reservoir parts (110, 120) is pressed against one face (141, 142) of the hotplate.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Sylvain Lenczner, Jean-Michel L'Aot, Vincent Maury, Miguel Angel Albarran
  • Publication number: 20130213025
    Abstract: A hydraulic pressure generator for a vehicle brake system comprises a piston and a cylinder that movably accommodates the piston. The piston defines a first hydraulic chamber and a second hydraulic chamber in the cylinder on opposite piston sides, wherein each hydraulic chamber has a hydraulic inlet and a hydraulic outlet. An actuating unit is able to put the piston into a back-and-forth motion so that an intake stroke with regard to the first hydraulic chamber corresponds to a discharge stroke with regard to the second hydraulic chamber, and vice versa.
    Type: Application
    Filed: May 23, 2011
    Publication date: August 22, 2013
    Applicant: LUCAS AUTOMOTIVE GMBH
    Inventor: Christoph Linden
  • Patent number: 8511343
    Abstract: A bladderless reservoir tank is provided with a hollow body that forms a cavity for receipt of a working fluid. A pick-up tube is attached to the hollow body of the reservoir tank. A portion of the pick-up tube extends into the interior of the body such that a port of the pick-up tube is positioned at the centroid of the hollow body. The pick-up tube has a channel that extends from the port at the centroid to the exterior of the body of the reservoir tank.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: August 20, 2013
    Assignee: Control Solutions LLC
    Inventor: Nicholas J. Scholtes
  • Patent number: 8505295
    Abstract: A reservoir device is provided, which prevents water from flooding in an accumulation tank and improves on-vehicle installation capability. The reservoir device 10 includes a catch tank 13 connected to an airspace “A” formed above an oil surface of working oil accumulated in an accumulation tank 12, which has a bottom surface formed with an external-air communication aperture 32. Liquid entering from the external-air communication aperture 32 is allowed, to be accumulated in the catch tank 13 once, and then is suitably discharged through the external-air communication aperture 32. This precludes the accumulation tank 12 from flooding with water and improves on-vehicle installation capability.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: August 13, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Michinobu Suzuki, Yasuhiro Kobayashi
  • Publication number: 20130025274
    Abstract: The invention relates to a reservoir, in particular for hydraulic motor vehicle brake systems, having one or more pressure medium chambers, a filler neck for filling the reservoir with pressure medium and a pressure medium passage, which is connected to the filler neck and has an opening facing the pressure medium chamber. In order to provide a reservoir which reliably prevents the pressure medium from leaking when the vehicle is in extreme positions and which, at the same time, can be produced in a simple and inexpensive manner, the proposal according to the invention is that the pressure medium passage be provided as a lateral channel which extends in the longitudinal direction along the reservoir, starting from the filler neck, and be formed by walls of an upper part and of a lower part of the reservoir.
    Type: Application
    Filed: September 15, 2010
    Publication date: January 31, 2013
    Applicant: CONTINENTAL TEVES AG & CO. OHG
    Inventors: Peter Tandler, Werner Krebs, Stephan Schlicht, Hans-Jürgen Neumann, Christoph Schiel, Yoji Hiraga
  • Patent number: 8316891
    Abstract: An open port is provided on an inner peripheral surface of the cylinder bore of the reservoir apparatus and the port is exposed to the exterior of the reservoir apparatus. A hollow portion is formed concentrically with the port on a reservoir body. An annular thin portion is formed between the inner peripheral surface of the cylinder bore and the hollow portion surrounding the port in a radial direction. The thin portion is outwardly deflected and deformed by being pushed outwardly in a radial direction centering on the port in a range narrower than the inner diameter of the hollow portion. Thus, the opening of the port is outwardly sunk from the inner peripheral surface of the cylinder bore thereby to form a curved surface at a root portion of the thin portion on the inner peripheral surface of the cylinder bore.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: November 27, 2012
    Assignee: Advics Co., Ltd.
    Inventor: Fumitoshi Koyama
  • Publication number: 20120205967
    Abstract: The disclosure relates to a method and a device as part of a complete brake system, that is, a brake system comprising a conventional part and a further part, such as a recuperative part, by means of which volume displacements of brake fluid are possible. The method according to the disclosure and the device according to the disclosure are used particularly if the pressure conditions in the hydraulic part of the brake system are adapted by the controllable braking force amplifier to a change in the additional braking effect of the further part of the brake system. A blending of the braking effects of the different brake systems into a constant total braking effect is thus accomplished, even if the proportion of the individual brake systems in the total braking effect change.
    Type: Application
    Filed: August 2, 2010
    Publication date: August 16, 2012
    Applicant: Robert Bosch GmbH
    Inventor: Dirk Mahnkopf
  • Publication number: 20120204554
    Abstract: Provided is a master cylinder hydraulic fluid flow control valve which can effectively decrease a pressure receiving area of a floating valve element when the floating valve element is seated on a valve seat, can favorably maintain a sealing function of a sealing member, and can suppress the increase of the number of assembling operation man-hours. A floating valve element 26a is vertically movably accommodated in a master cylinder connecting nipple portion 6b2, 6c2 which is hermetically mounted on a tandem master cylinder 4 by sealing members 23, 24 and forms a fluid passage between a reservoir tank and a tandem master cylinder 4 therein, and a valve seat 26b on which the floating valve element 26a is seatable is arranged in the master cylinder connecting nipple portion 6b2, 6c2.
    Type: Application
    Filed: October 15, 2010
    Publication date: August 16, 2012
    Inventor: Toshiyuki Takahashi
  • Publication number: 20120192556
    Abstract: A hydraulic main brake cylinder, preferably having an electro-mechanical brake booster for a brake assembly of a vehicle is disclosed. The main brake cylinder is provided with two pressure rod pistons, preferably nesting within each other, one of which is actuated by muscle power, and the other one is actuated by the brake booster. Furthermore, an energy store is provided, which stores energy when the main brake cylinder is released and then transferred to the main brake cylinder upon the actuation thereof, thus supporting the operation of the main brake cylinder.
    Type: Application
    Filed: May 27, 2010
    Publication date: August 2, 2012
    Applicant: Robert Bosch GmbH
    Inventors: Armin Verhagen, Jochen Mayer, Willi Nagel
  • Publication number: 20120186246
    Abstract: The invention relates to a master cylinder, in particular for a controlled motor vehicle brake system, including a first and a second piston which is displaceable in a housing and has a captive spring, a first end of the spring bearing at least indirectly against the piston and a second end thereof against a sleeve which is displaceable with respect to the piston and the movement of which with respect to the piston is limited by a pin provided on the piston and by a stop washer, the stop washer being arranged on a free end of the pin. In order to avoid impact noise upon rapid release of the brake, the stop washer of the first piston has a device for the damped abutment of the sleeve.
    Type: Application
    Filed: July 12, 2010
    Publication date: July 26, 2012
    Applicant: CONTINENTAL TEVES AG & CO. CHG
    Inventors: Jörg Loke, Peter Drott, Thanh-Quyen Tran, Heiko Leptich, Harald König
  • Patent number: 8197012
    Abstract: A device for supplying a downstream hydraulic brake fluid to a hydraulic brake circuit of a motor vehicle equipped with a clutch includes an enclosure intended to contain the hydraulic fluid, the enclosure being provided with at least one outlet nozzle and with an inlet orifice. The enclosure forms a downstream portion of a reservoir, the reservoir comprising an upstream portion forming an upstream enclosure intended to collect an upstream hydraulic fluid from the clutch of the vehicle. The upstream enclosure 4 includes at least one inlet nozzle serving to transfer the upstream hydraulic fluid toward the upstream enclosure 4. The inlet orifice is an intermediate orifice whereby the upstream enclosure opens into the downstream enclosure, the intermediate orifice being equipped with a means for filtering the upstream hydraulic fluid.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 12, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Jean-Michel L'Aot, Sylvain Lenczner, Christophe Duchossoy, Olivier Beaures-D'Augeres
  • Publication number: 20120096851
    Abstract: A master cylinder for a bicycle hydraulic disc brake configured to be disposed on either a right or left portion of a bicycle handlebar without effecting operation of the master cylinder by a user.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 26, 2012
    Applicant: SRAM, LLC
    Inventor: Wayne R. Lumpkin
  • Publication number: 20120096850
    Abstract: A master cylinder assembly for a hydraulic actuation system for a handlebar-steered vehicle. The master cylinder assembly generally includes a housing mountable to a frame member of the handlebar-steered vehicle and having a chamber including a fluid cavity with first and second fluid cavity regions. The first fluid cavity region is in fluid communication with the hydraulic actuation system. The housing includes discrete first and second housing portions. The first housing portion has first and second end portions. The first end portion of the first housing portion extends axially into the second fluid cavity region creating an annular gap radially outboard of the first end portion extending into the second fluid cavity region. The second end portion of the first housing portion is connected to the hydraulic actuation system. A piston assembly includes a piston slidably disposed within the fluid cavity.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Applicant: SRAM, LLC
    Inventors: Charles Emmett Dunlap, III, Braden Snead
  • Publication number: 20120067043
    Abstract: A pump body for governing hydraulic actuators (6) of disk brakes for bicycles or motorcycles, including a cylinder (1) with a chamber for compression of the fluid (5) communicating with the actuator (6), and a piston assembly (2), which is mobile with respect to the cylinder and is provided with a stem (3) and a primary gasket (4), wherein a movement of downstroke of the piston (2) brings about a reduction of the volume of the compression chamber (5) and displacement towards the actuator (6) of a corresponding volume of working fluid (1).
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Inventors: Andrea Becocci, Marco Fiesoli
  • Publication number: 20110308246
    Abstract: An assembly includes a fluid reservoir and a master cylinder for a motor vehicle hydraulic brake system, the fluid reservoir being fastened to the master cylinder by a releasable connection and including at least one connection fitting, which is received in a corresponding connection aperture of the master cylinder. The fluid reservoir includes one or more components, which under a defined force applied to the fluid reservoir, allow a movement of at least one part of the fluid reservoir in the direction of the master cylinder.
    Type: Application
    Filed: January 14, 2010
    Publication date: December 22, 2011
    Applicant: Continental Teves AG & Co. oHG
    Inventors: Hans-Jürgen Neumann, Peter Tandler, Swen Ottmann, David Sibr, Stepan Vit
  • Publication number: 20110302916
    Abstract: A sealing member for a piston slidably disposed within the cylinder bore of a hydraulic system includes a seal body having an outer sealing surface arranged to contact the cylinder bore and a glide ring at least partially disposed within the outer sealing surface of the seal body. The glide ring includes an outer surface and the outer sealing surface of the seal body includes at least one seal lip projecting beyond the outer surface of the glide ring.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 15, 2011
    Applicant: ROBERT BOSCH, LLC
    Inventors: Roger Miller, Milan Klimes, Brian Edward Roach
  • Publication number: 20110296827
    Abstract: In order to make the idle stroke which occurs as small as possible in a master cylinder, in particular for a clutch, actuating or brake system of a vehicle, comprising a cylinder housing with a piston bore, a piston arranged in the piston bore and having an end side facing a cylinder chamber and at least one afterflow opening which leads from a piston skirt surface through a piston wall to the cylinder chamber at a distance from the end side and adjoins an afterflow space in a pressure equalization position of the piston so that in the pressure equalization position hydraulic medium can run on into the cylinder chamber in order to equalize the pressure, and an inner sealing element which is arranged between the housing and the piston in the area of the piston bore and limits the cylinder chamber, it is suggested that the afterflow space be arranged between the sealing element and the piston skirt surface on a side of a sealing lip of the sealing element facing away from the cylinder chamber and that in the pr
    Type: Application
    Filed: June 14, 2011
    Publication date: December 8, 2011
    Applicant: Gustav Magenwirth GmbH & Co. KG
    Inventors: Michael Ruopp, Bernd Nenning
  • Patent number: 8051657
    Abstract: According to the plunger-typed master cylinder of the invention, because deformation of seal cups fitted in the hydraulic pressure chambers with the pistons (primary piston and floating piston) inserted is minimized, that is, the deformation of the inner flange being in contact with pistons does not substantially affect the outer flange being in contact with hydraulic pressure chambers when the master cylinder is in operation, it is possible to prevent deterioration in the performance of passing or stopping oil due to the deformation of seal cups and durability.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: November 8, 2011
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Seonghun Kim
  • Patent number: 8037898
    Abstract: A reservoir tank for a vehicle brake system has a tank body including upper and lower shells joined together along mating surfaces. A float and a fluid level sensor are mounted in a fluid level detecting chamber defined in the tank body. The float is fitted on a shaft of the fluid level sensor. A partition plate is fitted in the lower shell to restrict a flow of hydraulic fluid into and out of the fluid level detecting chamber. The partition plate is disposed near the top end of the shaft of the fluid level sensor to restrict the distance by which the float can move vertically. A filter, the fluid level sensor and the partition plate are all set in the lower shell. The filter and the partition plate having their top ends pressed against the bottom ends of partitioning walls of the upper shell. Thus, the filter and the partition wall are held in position in the tank body between the upper and lower shells.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: October 18, 2011
    Assignee: Advics Co., Ltd.
    Inventor: Mitsuharu Hayashi
  • Publication number: 20110239641
    Abstract: A brake fluid pressure control device for a vehicle includes: a base body; reservoirs to store brake fluid in the base body; and a single lid member secured to the base body. The reservoir has a reservoir hole, a piston that slides inside the reservoir hole, and a spring that biases the piston. The lid member hermetically seals the reservoir holes. The lid member includes a plate member with which the springs make contact and a ring-shaped sealing member held between one face of the base body to which the plate member is secured and the other face of the plate member opposed to the one face to provide a sealing function. In the lid member, a screw hole is disposed outside a region surrounded by the sealing member and a communication passage communicating with the reservoir holes is provided inside the region.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Applicant: NISSIN KOGYO CO., LTD.
    Inventors: Takuro KODAMA, Motoyasu Nakamura
  • Publication number: 20110209472
    Abstract: A cup seal (21) of the invention includes an intermediate lip portion (21d), positioned between an inner lip portion (21b) and an outer lip portion (21c), provided in a base portion (21a). The intermediate lip portion (21d) is configured in such a way that first intermediate lip portions (21d1), communication passages (21d3), second intermediate lip portions (21d2), whose axial direction length is less than that of the first intermediate lip portions (21d1), and the communication passages (21d3), which have no lip portion, are cyclically disposed, in this order, in the peripheral direction. An easy elastic deformation portion of the base portion (21a) which elastically deforms easily is formed by the second intermediate lip portions (21d2) and communication passages (21d3) and, by the easy elastic deformation portion elastically deforming easily when supplying liquid, a flow passage with a larger passage area is formed.
    Type: Application
    Filed: January 17, 2008
    Publication date: September 1, 2011
    Inventors: Tomohiro Aoki, Masaki Shiwa
  • Patent number: 7997075
    Abstract: A master cylinder 1, especially for a controlled brake system, includes at least one piston 3, 4; 53, 54 displaceable in a housing 2, which is sealed in relation to a pressure chamber 7, 8 by means of a sealing element 5, 6 arranged in an annular groove 23, 24 of the housing 2, said pressure chamber being connectable to an unpressurized supply chamber 11, 12 by means of transverse bores 9, 10; 50, 51 provided in the piston 3, 4; 53, 54. Several recesses 15, 16, 17 are arranged on an inside surface 13, 14; 59, 60 of the piston 3, 4; 53, 54 into which the transverse bores 9, 10; 50, 51 open.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: August 16, 2011
    Assignee: Continental Tevas AG & Co.
    Inventors: Peter Drott, Harald König, Udo Jungmann, Andreas Bischoff, Jörg Loke, Mathias Küster
  • Patent number: 7980075
    Abstract: A reservoir capable of shortening a time period required to fill a brake system and a clutch system with a fluid with vacuuming in a case where the reservoir has a brake reservoir chamber to be connected to a brake master cylinder of the brake system and a clutch reservoir chamber to be connected to a clutch master cylinder of the clutch system. The reservoir (12) includes a brake reservoir chamber (28) and an inlet port for injecting the brake reservoir chamber (28) with a fluid from outside. The reservoir further includes a clutch reservoir chamber (29) separated from the brake reservoir chamber (28), and a communication passage (37) providing communication between the inlet port and the brake reservoir chamber (28). The communication passage is branched so as to communicate with the clutch reservoir chamber (29).
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 19, 2011
    Assignee: Hitachi, Ltd.
    Inventor: Shoichi Sato
  • Patent number: 7926268
    Abstract: A master cylinder includes a cylinder body, a reservoir connection port formed at a surface of the cylinder body and being in communication with a reservoir, a pressure chamber formed inside of the cylinder body, a reservoir fluid passage connecting the reservoir connection port and the pressure chamber, a valve mechanism accommodated within the reservoir connection port and reducing an amount of fluid flowing in the reservoir fluid passage in a case where the reservoir fluid passage is at a high pressure, and a valve body including a small diameter cylindrical portion and a large diameter cylindrical portion, the small diameter cylindrical portion forming a passage by means of which the reservoir and the reservoir fluid passage communicate, the large diameter cylindrical portion having one end connected to the small diameter cylindrical portion and the other end fixed to the reservoir connection port, the valve body accommodating the valve mechanism.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: April 19, 2011
    Assignee: Advics Co., Ltd.
    Inventor: Takashi Egawa
  • Patent number: 7918089
    Abstract: A master cylinder has a body formed from a seamless cylindrical tube. Bosses are welded to an exterior sidewall portion of the tube and have passages communicating with the interior bore. An end cap closes one bore end and includes a passageway for supplying pressurized hydraulic fluid from the bore to individual wheel brake cylinders. The mating reservoir includes a pair of downwardly depending legs for attachment. A pair of bolts extend from a vacuum booster, pass through the reservoir mounting bolt apertures and engage the end cap of the body securing the resulting assembly to the vehicle.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: April 5, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Peter Wierzchon
  • Publication number: 20110017560
    Abstract: A cover for a hydraulic master cylinder. The cover includes an interface configured to sealingly engage with a master cylinder body to jointly define a hydraulic fluid reservoir. An electronic display unit is positioned at least partially within the cover and viewable from outside the cover.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 27, 2011
    Applicant: HARLEY-DAVIDSON MOTOR COMPANY GROUP, LLC
    Inventors: Matthew J. Van Dyke, Benjamin P. Davis, Jeffary R. Sonnentag
  • Patent number: 7861524
    Abstract: A master cylinder of a brake is disclosed. The master cylinder includes a cylinder body connected with an oil tank and defining therein a first pressure chamber and a second pressure chamber, which are separated from each other by a partition, a first piston to perform reciprocating movements in the first pressure chamber, a second piston to perform reciprocating movements in the second pressure chamber, a first return spring to elastically support the first piston in the first pressure chamber, and a second return spring to elastically support the second piston in the second pressure chamber. The first piston has a plurality of recesses formed at one end thereof to assure smooth supply of oil during braking. The master cylinder has the effects of assuring smooth supply of brake oil during braking, and preventing fluctuation of a piston therein.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: January 4, 2011
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Seong Hun Kim
  • Publication number: 20100313560
    Abstract: An open port is provided on an inner peripheral surface of the cylinder bore of the reservoir apparatus and the port is exposed to the exterior of the reservoir apparatus. A hollow portion is formed concentrically with the port on a reservoir body. An annular thin portion is formed between the inner peripheral surface of the cylinder bore and the hollow portion surrounding the port in a radial direction. The thin portion is outwardly deflected and deformed by being pushed outwardly in a radial direction centering on the port in a range narrower than the inner diameter of the hollow portion. Thus, the opening of the port is outwardly sunk from the inner peripheral surface of the cylinder bore thereby to form a curved surface at a root portion of the thin portion on the inner peripheral surface of the cylinder bore.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 16, 2010
    Applicant: ADVICS CO., LTD.
    Inventor: Fumitoshi Koyama
  • Publication number: 20100287930
    Abstract: Reservoir in which the walls (111, 121) and the partitions (112, 122) are assembled by thermowelding the edges together with the exception of the edges (113a, 123a) of the well elements (113, 123), the edge (113a) of the upper element (113) and the edge (123a) of the lower element (123) of the well (104) have complementary shapes producing, by assembly under the pressure exerted by bringing together and welding the walls (111, 121) and the partitions (113, 123) of the reservoir (100), a fluid-tight joint between the edges of the two well elements, without generating projections that are deformed toward the interior of the well. The thermowelding hotplate (140) has a cut-out (143) along the line of the well elements (113, 123) so as to leave the edge (113a, 123a) of the well elements out of contact when the edge (111a, 121a) of the walls (111, 121) and that (112a, 122a) of the partitions (112, 122) of each of the reservoir parts (110, 120) is pressed against one face (141, 142) of the hotplate.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Applicant: ROBERT BOSCH GMBH
    Inventors: Sylvain LENCZNER, Jean-Michel L'AOT, Vincent MAURY, Miguel Angel ALBARRAN