Abstract: The present invention relates to a master cylinder arrangement for a brake system, comprising a tandem master cylinder including a master cylinder housing, a first master piston movably arranged in the master cylinder housing, a second master piston movably arranged in the master cylinder housing, a balancing piston movably arranged in the second master piston, and an elastic pedal feel element. The invention further relates to a hydraulic system for a brake system as well as a brake system.

Abstract: To suppress a sharp variation in the posture of a vehicle in a control apparatus that is configured to control the posture of the vehicle by adjusting a distribution ratio of a braking force between the front and rear during braking of the vehicle. The control apparatus includes a distribution setting unit that is configured to change the braking force distribution ratio from a basic braking force ratio during braking of the vehicle so that a posture of the vehicle follows a posture indicated by the target posture value. If the target posture value is varied when the braking force distribution ratio is different from the basic braking force ratio, the distribution setting unit sets the amount of change, by which the braking force distribution ratio is changed per unit time, equal to or smaller than a restriction amount.

Abstract: Provided is a parking brake apparatus for a vehicle that allows an improvement in the ease of assembly during manufacturing. A parking brake apparatus for a work vehicle having wet brake mechanisms for restricting rotation of right and left axles and is able to simultaneously apply or release brakes via brake arms for the right and left transaxles. The parking brake apparatus includes a parking brake pedal for artificially providing a parking instruction, an electric actuator having a displacement portion that is displaced in response to the parking instruction, and a link mechanism connecting the displacement portion and the brake arms. The link mechanism includes auxiliary brake rods connected at first end portions to the brake arms, an equalizer connected to second end portions of the auxiliary brake rods, and a single principal brake rod connected at a first end portion to a substantially central portion of the equalizer and connected at a second end portion to the displacement portion.

Abstract: A pedal feel emulator includes: a body; a displacement piston provided inside the body, the displacement piston being movable along an axial direction of the body, the displacement piston has a hollow part at lower part, and the hollow part is surrounded by a surrounding wall; a retainer provided fixed inside the body, the retainer being under the displacement piston; a first elastic object provided between the displacement piston and the retainer, the first elastic object being retained by the retainer; and a second elastic object provided inside the hollow part of the displacement piston, an air gap is provided between bottom surface of the second elastic object and top surface of the retainer. A brake-by-wire system including the pedal feel emulator is also disclosed herein.

Abstract: An assembly of a dash panel and a brake master cylinder unit of a vehicle disclosed herein may include: a panel-side support plate arranged between the brake master cylinder unit and the dash panel, the panel-side support plate being parallelly fixed to the dash panel; a unit-side support plate arranged between the dash panel and the panel-side support plate, the unit-side support plate being fixed to the brake master cylinder unit; a first anti-vibration plate interposed between the dash panel and the unit-side support plate; a second anti-vibration plate interposed between the unit-side support plate and the panel-side support plate; and a third anti-vibration plate interposed between the panel-side support plate and the brake master cylinder unit. A rigidity of the second anti-vibration plate in a plate thickness direction may be greater than any of rigidities of the first and the third anti-vibration plates in plate thickness directions.

Abstract: A method and apparatus for sensing wheel torque of a highly automated driving (HAD) vehicle includes a wheel hub configured to rotate around a rotation axis as the vehicle moves and a brake caliper, including a brake pad, configured to apply a caliper force to the wheel hub. A reaction carriage is interconnected with the brake caliper and is configured to have a reaction force applied to it when the brake caliper applies the caliper force to the wheel hub. The wheel torque sensor includes a hydraulic chamber having a hydraulic fluid and a pressure sensor, interconnected with the hydraulic chamber, that senses pressure applied to the hydraulic fluid in response to the reaction force.

Abstract: Provided is a parking brake apparatus for a vehicle that allows an improvement in the ease of assembly. A parking brake apparatus includes a valve, a single hydraulic actuator that includes a cylinder, a piston housed in the cylinder in such a manner as to be reciprocably displaceable along the cylinder, and a principal brake rod connected to the piston, and can displace the piston to one of a brake operating position and a brake non-operating position by the valve, a balance arm connected to a first end portion of the principal brake rod on a side protruded from the cylinder, and a pair of left and right auxiliary brake rods provided between bent portions at end portions of the balance arm and left and right brake arms, respectively. The hydraulic actuator includes a spring member for constantly urging the piston to the brake operating position.

Abstract: A chassis of a transportable device including a base structure, four casters arranged thereon, four lowerable and raiseable support feet also mounted on the base structure, and a hydraulic support foot actuating device. The hydraulic support foot actuating device has a reservoir (1), a pump (2) manually operable by hand or foot, four support foot linear actuators (3) and a purely hydro-mechanical pipe and valve arrangement (4) which connects the reservoir (1), the pump (2) and the linear actuators (3) to one another. Therein, by means of hydraulic fluid delivered by the pump (2) from the reservoir (1) the two support feet assigned to two primary linear actuators (3a) can be fully extended until a mechanical stop is reached while raising the base structure by first applying pressure to the two primary linear actuators (3a) before applying pressure to the two other, secondary linear actuators (3b).

Abstract: A brake system including a base, a driving motor, a cam, a braking pump, a rotating column, and a bearing shaft. The base has an accommodating space. The driving motor is disposed on the base and located in the accommodating space. The cam is pivoted to the driving motor, and the driving motor is adapted to drive the cam to rotate relative to the base. The braking pump is disposed outside the base. The rotating column is rotatably disposed outside the base and connected to the braking pump. The bearing shaft is connected to the rotating column and extended into the accommodating space so as to radially in contact with the cam.

Abstract: A method for providing a brake force in a vehicle includes actuating an electric brake motor, which overrides an idling function, generating a hydraulic braking power, and re-actuating the electric brake motor.

Abstract: A method for adjusting the brake pedal counter force in a vehicle with a hydraulic vehicle brake and an electromechanical brake device includes modulating the brake pressure during the simultaneous operation of the hydraulic vehicle brake and the electromechanical brake device such that the brake pedal counter force follows a predetermined target profile.

Abstract: A floating type disc brake device in which a body, a support and a cylinder unit are configured separately, and a first piston and a second piston are accommodated in the cylinder unit, wherein the cylinder unit is fixed to arm portions provided on both the rotation-in side and the rotation-out side of a rotor in the support via cylinder attachment portions disposed on the outer circumference side of the cylinder unit.

Abstract: Provided is a master cylinder unit including a simulator pressure chamber which communicates with a pressure chamber of a master cylinder and moves a simulator piston by means of an introduced fluid pressure; a biasing chamber in which a biasing mechanism biasing the simulator piston against a fluid pressure introduced into the simulator pressure chamber is disposed; a first seal member which partitions a simulator supply chamber, the simulator supply chamber, and the simulator pressure chamber communicating with a master supply chamber; and a second seal member which partitions the simulator supply chamber and the biasing chamber and allows a brake fluid to flow from the simulator supply chamber to the biasing chamber when a pressure difference occurs between the simulator supply chamber and the biasing chamber.

Abstract: The present invention relates to a mechanical system for stabilization on the floor for vehicles on castors (for example a surgical assistance robot used in an operating room) that can adopt two stable states, i.e. disengaged, the vehicle resting on the castors, and activated, the vehicle being immobilized on the floor, respectively. According to the invention, the stabilization system comprises: feet for resting on the floor, movable between a first retracted position, at a distance from the floor, and a contact position ensuring the immobilization of the vehicle through mechanical friction against the floor; means for mechanically controlling said supporting feet, said control means being movable between two stable positions corresponding to the activated and disengaged states; mechanical means for transmitting the displacement of the control means simultaneously to all the supporting feet.

Abstract: A current whose magnitude corresponds to first pressing force-current characteristics set to prevent forward movement of a driven member from being stopped is applied to a motor when the driven member moves forward, and a current whose magnitude corresponds to second pressing force-current characteristics set to move the stopped driven member forward is applied to the motor when the driven member is stopped, in the case where a relationship between a pressing force as a force with which a friction member presses a rotating body and an energization current to the motor is defined as pressing force-current characteristics.

Abstract: A wheel assembly for an automotive vehicle is described herein. The assembly includes a cylindrical rim, a tire around the rim, two spoke assemblies, a wheel hub, a brake assembly, and a mounting arm. The rim is symmetrical, and has a first flange on a first side of the rim and a second flange on a second side of the rim. The tire is disposed around the rim. The first spoke assembly is coupled to the first flange and has a hub-mounting structure at its center. The second spoke assembly is coupled to the second flange and has an opening at its center. The wheel hub and brake assembly are disposed inside the rim between the first and second spoke assemblies, coupled to the hub-mounting structure. The mounting arm passes through the opening at the center of the second spoke assembly and couples the wheel assembly to the vehicle.

Abstract: Provided are a disc brake and a piston whose weights can be effectively reduced. A disc brake includes a piston configured to press a pad against a disc. The piston includes a body member formed into a bottomed cylindrical shape and including a cylinder portion and a bottom portion. The cylinder portion and the bottom portion are approximately equal in wall thickness. The piston further includes a plate-shaped member fixed to an external bottom surface of the body member and disposed within a range of the external bottom surface and in a region including a center of the external bottom surface.

Abstract: An aircraft comprises a landing gear assembly on a part of which is mounted a motor for driving a wheel of the landing gear assembly, for example to enable the aircraft to perform taxiing manoeuvres. The motor is a liquid-cooled motor and the liquid that is used to cool the motor is hydraulic fluid, preferably hydraulic fluid taken from a hydraulic system that already exists on the aircraft to supply other consumers of hydraulic fluid pressure on the aircraft. The hydraulic fluid thus has other utility (i.e. other than cooling the motor) on the aircraft and therefore has a significant volume (and therefore a significant heat capacity). There may be a need to convert from high pressure hydraulic fluid to a lower pressure supply.

Abstract: The invention relates to a mechanism (1) for progressive braking, applicable to brakes comprising friction elements (2) secured to the vehicle (3), which act on frictional tracks (4) secured to the wheels, the friction elements (2) being actuated by means of a primary hydraulic circuit (5), where the friction elements (2) comprise primary sectors (2a) actuated by the primary hydraulic circuit (5), and secondary sectors (2b) actuated by a secondary hydraulic circuit (6), while said friction elements (2) are mounted on the vehicle by means of attachment means (7) that can be partially moved in the direction of the frictional tracks (4), the partially movable attachment means (7) being associated with at least one hydraulic actuator (8), which regulates the pressure in the secondary hydraulic circuit (6) in order to regulate the braking pressure of the secondary sectors (2b) according to the movement of the friction elements (2).

Abstract: A brake assist system comprising an intermediate spring combined with a compression thrust bearing, limiting the compression to a force greater than the response of the brake pedal under normal operating conditions. The spring and its compression thrust bearing are placed between the plunger piston (2) and the helper piston so that the spring transmits the thrust from the helper piston to the plunger piston that pulls the pedal under normal braking conditions. The helper piston pushes the plunger piston by way of the compression thrust bearing when the response of the plunger piston exceeds the compression threshold. A contact detector detects the contact between the helper piston and the thrust bearing.

Abstract: A stop arrangement having a first brake lever arrangement and a second brake lever arrangement, which together form a brake lever pair of a brake caliper arrangement and which, at the first end thereof, are respectively articulated on a support and, at the second end thereof, are coupled to one another by means of a positioning arrangement, wherein a first stop element is arranged in each case between the ends of the first brake lever arrangement and a second stop element is arranged between the ends of the second brake lever arrangement, and first and second stop elements are formed and mesh in such a way that they allow operating movements in opposite direction towards and away from one another between a brake position and a releasing position of the brake lever arrangements and inhibit an aligned tilting movement of the brake lever arrangements in a tilting direction (M), such that the brake lever arrangements are retained in the releasing position against a tilting action in a centering position within a

Abstract: A cooling assembly for a transmission component includes a housing having one or more walls at least in part defining an internal cavity in which the transmission component is mounted. A coolant passage extends through the one or more walls of the housing. A spray plate is mounted to the housing. The spray plate has one or more openings extending through the spray plate in communication with the coolant passage and configured to disperse coolant from the coolant passage to effect an altered spray pattern exiting from a flow outlet of the coolant passage.

Abstract: An activation apparatus for a transmission of a motor vehicle includes a gear selector that is configured to move in a shift gate to thereby select first drive programs, and an activation device that is connected to the gear selector. Actuation of only the gear selector activates the first drive programs. The first drive programs include a forward drive program and a reverse drive program. The gear selector is configured take up a monostable rest position in the shift gate. Simultaneous actuation of both the gear selector and the activation device activates a second drive program that is different from the first drive programs. The activation device is a spring-loaded switch that is activated by actuating the gear selector.

Abstract: A brake piston assembly is described. The brake piston assembly includes a brake piston, the brake piston comprising: a front face and a back surface, the front face opposite the back surface and the front face configured to exert pressure on a brake pad; a cavity extending into the brake piston from the rear surface; and a projection located within a cavity of the brake piston at a position intermediate the front face and the rear surface; a brake piston nut receivable into the cavity; and a flexible retainer, the flexible retainer located in a groove in an outer wall of the brake piston nut; wherein, when the piston nut is fully inserted into the cavity, the flexible retainer will be located between the projection and the front face.

Abstract: A limited slip differential for a vehicle comprising: a carrier containing lubricant and rotatable about a first axis; a pinion gear arranged within the carrier and rotatable about a second axis; a side gear arranged within the carrier and engaged with the pinion gear; and a clutch pack arranged within the carrier and rotatable about the first axis, the clutch pack comprising a captive disk and a floating disk, each of the captive disk and the floating disk have a central aperture, a peripheral region, and at least one lubrication aperture, the captive disk having an inner lubrication aperture arranged proximal to the respective central aperture and an outer lubrication aperture arranged proximal to the respective peripheral region, and the floating disk having an intermediate lubrication aperture arranged between the inner aperture and the outer aperture, whereby rotation of the floating disk relative to the captive disk causes lubricant to travel from the central apertures to the peripheral regions by progr

Abstract: A brake device may include: a master cylinder including a master piston moved in connection with a pedal, and a master cylinder body having the master piston movably inserted therein and containing fluid of which hydraulic pressure is varied when the master piston is moved; a pedal force generation part housed in the master cylinder body, and restricting a motion of the master piston while interfering with the master piston depending on the motion of the master piston; a braking actuator configured to generate hydraulic pressure; an actuator connection part connecting the braking actuator to a brake mounted on a wheel; and a master connection part connecting the master cylinder to the actuator connection part.

Abstract: A hydraulic operating system for a small vehicle including a bicycle is basically provided with a base member, a piston, a hydraulic fluid chamber, a diaphragm and a deformation adjustment structure. The base member includes a cylinder bore. The piston is movably disposed in the cylinder bore. The hydraulic fluid chamber is fluidly connected to the cylinder bore. The diaphragm is at least partially defining the hydraulic fluid chamber. The diaphragm is deformed by fluid pressure in response to movement of the piston in the cylinder bore. The deformation adjustment structure is configured to selectively change a deformation condition of the diaphragm between at least two different deformation conditions.

Abstract: The invention relates to a caliper for disc brake comprising a caliper body which defines a housing compartment for an associated brake disc and houses at least one pair of pads arranged on opposite sides of the housing compartment along an axial direction. The caliper body comprises at least one thrust piston axially operable against the pad, at least one axial guide which supports and guides the pad in the axial direction and a first thrust spring which exerts a thrust on the pad. Said thrust has a first axial component, axially directed in a direction of approach to the pistons, and a first radial component, perpendicular to the axial direction. Advantageously, the caliper body comprises at least one compensation spring which exerts an axial thrust on the pad in a direction of approach to the pistons. The second axial component annuls the momentum given by the friction force exchanged between the pad and the axial guide with respect to the point of application of the first axial component on the pad.

Abstract: An expanding device for actuating one of the brake shoes of a drum brake includes a body of revolution and transmission bodies actuated by the body of revolution via ball track ramps. A spacer body is located between two partial bodies of the body of revolution, the spacer body guided by an adjustment spring keeping the partial bodies at the respectively reached distance. The spacer body is screwed onto a pin on the first partial body. A readjustment nut ensures that, when the two partial bodies are pushed apart, the spacer body rotates on the pin and moves away from a supporting surface on a partition of the second partial body. Upon renewed actuation of the brakes, the readjustment nut is guided such that the spacer body bears against the second partial body, but takes up a different position on the pin, the position corresponding to the air clearance readjustment.

Abstract: An actuator for use in a drum-in-hat parking brake includes a wedge. A pair of tappets oppositely disposed from each other such that a tappet is positioned adjacent opposite sides of the wedge is included and a bearing is positioned between the wedge and an adjacent tappet. The bearing rolls along and between the wedge and the adjacent tappet and forces the pair of tappets apart from each other when the wedge moves relative to the pair of tappets. Movement of the pair of tappets away from each is used to force a pair of brake shoes into contact with a brake drum and provide a desired braking force on a brake drum.

Abstract: A releasable pneumatically operated coupling for an industrial drive such as for a grinding mill. A variable speed motor has its output shaft provided with a flange rotating therewith on which are mounted a plurality of radially moveable arcuate elements having friction pads on their radially inner surfaces. An inflatable ring surrounds the arcuate elements and, upon inflation, urges the pads into driving contact with an annular friction surface on a coupling output shaft. The arcuate elements have U-shaped undercuts in the axial torque bar passages therethrough for stress relief. Separate speed sensors on the motor shaft and coupling output shaft provide signals to a comparator which, upon sensing a predetermined speed difference, provide a signal to an electrically operated valve which exhausts air pressure from the inflatable ring to release the coupling.

Abstract: A hydraulic brake valve system may comprise a valve housing comprising a brake port, a pressure port, a return port, and a valve actuation end; a valve shaft coupled to the valve actuation end, wherein the valve shaft may be comprised at least partially within the valve housing; and an electric actuator coupled to the valve shaft, wherein the electric actuator may be configured to move the valve shaft between a shaft on position and a shaft off position. The hydraulic brake valve system may be configured to pass hydraulic pressure through at least one of the brake port, the pressure port, or the return port in response to a position of the valve shaft.

Abstract: The vehicle brake device has the invalid depression region in a brake pedal operation by a driver. The vehicle brake device includes an input rod configured to move forward and rearward in conjunction with a depression operation of a brake pedal and a pedal bias unit configured to bias the input rod in a direction to which the brake pedal returns when the depression operation position of the brake pedal lies within the invalid depression region. The pedal bias unit includes an elastic body including one end portion attached to the input rod and the other end portion attached to the vehicle body side member to provide a spring force to the input rod in the direction to which the brake pedal returns.

Abstract: An actuator device for a selectable clutch having three or more clutch modes may include a dual rate piston with a stable middle position. A positive stop provides very accurate control when shifting from an end position to a middle position without overshoot. Precision position control of the actuator device facilitates consistent, stable control of the current mode of the selectable clutch.

Abstract: 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.

Abstract: A disc brake runs wet by use of cooling fluid, in particular for a road vehicle, and includes stationary stator discs arranged in parallel to and at a distance from one other, and between which in each case a rotatable rotor disc is arranged. During braking, the radially extending stator discs and rotor discs can be pressed against one another, closing an air gap and, after the brake has been released, can be separated from one another, forming the air gap. The brake is designed such that the rotor discs have cooling channels which can be filled with cooling fluid immediately before or at the start of braking.

Abstract: A brake assembly having a brake spider that may receive an anchor pin or a sleeve that receives an anchor pin. Features such as splines may be provided with the anchor pin to help secure the anchor pin to the brake spider or the sleeve. Engagement features may be provided with the sleeve to help secure the sleeve to the brake spider.

Abstract: An electro-mechanical actuator in an aircraft brake may include a ball nut piston, and endcap coupled to the ball nut piston, a retaining ring coupled to the endcap, and a puck secured within the endcap. The puck may be permanently retained within the retaining ring. The retaining ring may be a split ring which is installed around a base of the puck. The puck may be inserted within a single-piece retaining ring, and the retaining ring may be bent over a base of the puck.

Abstract: A bicycle rim brake is basically provided with a first brake arm and a hydraulic actuation device. The first brake arm includes a first coupling portion configured to pivot about a first pivot axis, a first actuated portion and a first mounting portion. The first mounting portion is configured to mount a first friction member and extends from the first coupling portion. The hydraulic actuation device is operatively coupled to the first actuated portion of the first brake arm. The hydraulic actuation device includes a cylinder housing defining a hydraulic chamber, a first piston movably disposed in the hydraulic chamber of the cylinder housing, and a first sealing member provided on the cylinder housing so as to at least partially support the first piston in the hydraulic chamber.

Abstract: A master brake cylinder for a braking system of a vehicle is described, having a first pressure chamber. A first rod piston element is movable into at least a first partial pressure chamber of the first pressure chamber in such a way that a first partial residual volume of the first partial pressure chamber which is fillable with liquid is reducible by moving the first rod piston element. The master brake cylinder also includes a second partial pressure chamber of the first pressure chamber which is delimited from the first partial pressure chamber via at least one partial partition and into which a second rod piston element is movable in such a way that a second partial residual volume of the second partial pressure chamber which is fillable with liquid is reducible by moving the second rod piston element. Moreover, a manufacturing method is described for a master brake cylinder.

Abstract: A brake assembly adapted to be mounted to the flange of an axle housing. The brake assembly includes a stationary plate having a plurality of threaded holes therein. The brake assembly also includes a mounting sleeve positioned adjacent to the axle housing flange opposite the stationary plate. A plurality of holes are provided through the mounting sleeve and are aligned with the threaded holes in the stationary plate. A bolt is received through each of the holes in the mounting sleeve and the aligned holes in the axle housing flange and the threaded holes in the stationary plate to secure the brake to the axle housing. The mounting sleeve may be provided in two or more separate pieces in order to facilitate installation.

Abstract: A device for locking a rod member is provided. The device includes a body section having a vertical hole therein, and a ring-type locking unit and a piston serially arranged along the hole, wherein the rod member is disposed in the hole to be axially movable through the locking unit and the piston. The locking unit may be a lock block including an outer ring having an inclined surface on one side thereof, thereby defining a wedge-type space, an inner ring coaxially disposed in one side of the outer ring and accommodating a pressurizing member interacting with the inclined surface, and a spring disposed in the other side of the outer ring so as to elastically connect the outer ring and the inner ring.

Abstract: Dual clutch including two clutch units acting in a force-fitting manner and mounted on a common clutch hub in a rotationally fixed and axially movable manner, a pressure disk arrangement retained between the clutch units on the clutch hub in an axially fixed manner and including two axially movable pressure pistons each of which can be ventilated by a compression spring arrangement positioned in the clutch hub. Each compression spring arrangement includes multiple compression springs, each of which is arranged in a recess of the clutch hub. Each recess is introduced into the clutch hub as an axially extending blind hole. The pressure disk arrangement is received in a radial groove of the clutch hub, the groove being radially and/or axially spaced from the blind holes.

Abstract: A brake actuation system of a hydraulic brake system, for actuating at least one front axle brake circuit having at least one front wheel brake, and for actuating at least one rear axle brake circuit having at least one rear wheel brake, the brake actuation system including at least one hand brake module which, when actuated, can activate both brake circuits. In order to provide an improved brake actuation system with a plurality of actuation capabilities, which system can also be utilized in light motorcycles and scooters without the restrictions of existing brake actuation systems, while simultaneously offering a simple concept and a reduced cost and weight, the hand brake module is hydraulically coupled into a combined hand brake module, the combined hand brake module being designed to simultaneously generate brake pressure in both brake circuits.

Abstract: A valve assembly including a housing and a first movable member which divides the housing into a control chamber and a main chamber. A second movable member has a first valve part and a second valve part and is movable to engage the first valve part with a corresponding inlet valve part to substantially prevent flow of fluid into the main chamber via an inlet port. The first movable member is provided with an exhaust valve part and is movable to engage the second valve part of the second movable member to substantially prevent flow of pressurized fluid out of the main chamber via an exhaust port. A support part is secured relative to the housing, there being a first seal between the second movable member and the support part and a second seal between the support part and the first movable member.

Abstract: A parking brake for a body mounted brake cylinder having either a single locking mechanism cooperates with a threaded shaft that is centrally mounted within the brake cylinder or with multiple locking mechanisms that are positioned symmetrically about the centerline of the brake cylinder push rod so that the push or piston rod can still accommodate arcuate motion of the level of the braking system. The locking mechanism may be controlled by a mechanical linkage or through a pneumatic circuit. Activation of the locking mechanisms prevents axial movement of the brake piston. As a result, engagement of the locking mechanism may be used to prevent a release of the brakes after then have been applied to provide an automatic parking brake.

Abstract: A disc brake caliper, has a caliper body having a pair of half-calipers which define a housing compartment for a portion of an associable brake disc. The half-calipers being placed on opposite sides to the housing compartment in an axial direction parallel to the rotation axis of the associable brake disc. At least one half-caliper is fitted with at least one housing seat for a piston suitable to press a pad against the associable brake disc, in the axial direction. The housing seat passes through the respective half-caliper so as to extend between an inner wall facing the housing compartment and an outer wall of the half-caliper, axially opposite the housing compartment. A cup-shaped hollow insert is housed inside the housing seat so as to present a closed end wall, placed on the side of the outer wall of the half-caliper, and a cavity having an aperture facing axially towards the housing compartment.

Abstract: A hydraulic operating device includes a base member, a hydraulic cylinder provided on the base member and having a bore, a piston located in the bore to move between an initial position and an actuated position, a lever pivotally coupled to the base member around a lever axis for pivotal movement between a rest position and an operated position and including a contact portion, and a connecting member configured to connect the lever to the piston such that the piston is pulled from the initial position to the actuated position in response to the pivotal movement of the lever from the rest position to the operated position. The connecting member has a first end portion coupled to the piston and a second end portion configured to displaceably contact with the contact portion of the lever.

Abstract: A line-locking brake system consists of a brake pressure generator which, in conjunction with a brake fluid solenoid isolates the front brake circuit from the master cylinder while maintaining a precise brake pressure in the front brake hydraulic system. The brake pressure generator consists of a pressure amplifier having a high pressure chamber located in the flow path from the master cylinder to the front brake cylinders and a low pressure chamber in fluid communication with a regulated gas pressure source. When activated, the brake pressure generator applies a pressure to the front brake circuit that is directly proportional to the pressure of the regulated gas and therefore is precisely controllable irrespective of wear on parts, driver fatigue or other variables.

Abstract: Disclosed is a hydraulic brake system comprising a master cylinder forming a braking hydraulic pressure according to an operation of a brake pedal, wheel brakes provided at a front wheel and a rear wheel, respectively, to provide a braking force by receiving the braking hydraulic pressure of the master cylinder, solenoid valves provided at an inlet side and an outlet side of each of the wheel brakes to control a flow of the braking hydraulic pressure, a low pressure accumulator temporarily storing oil discharged from the wheel brake during a pressure reducing braking in which the solenoid valve operates, a pump configured to compress oil stored in the low pressure accumulator such that the oil is discharged toward the wheel brake or the master cylinder according to a demand, and an orifice provided at an outlet side of the pump, wherein the orifice includes an outer case and an inner case provided to form a space between the outer case and the inner case while assembled to the outer case, a first oil passage