| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 060545000 |
Having electricity or magnetically operated structure
| 80 |
| 060585000 |
Holder for reserve liquid feeds master
| 44 |
| 060547100 |
With control of or by a separate power fluid, etc.
| 30 |
| 060591000 |
Having valve, director, or restrictor in pulse fluid flow path
| 20 |
| 060534000 |
Having signal, indicator or recorder of apparatus condition
| 15 |
| 060562000 |
Master piston of one pulsator circuit drives master piston of a parallel circuit through a resilient, fluid or lost motion connection
| 13 |
| 060594000 |
Having cam, or lever system driving master
| 11 |
| 060592000 |
Having, surge chamber, fluid supply means, or means compensating for fluid expansion, contraction or leakage
| 7 |
| 060581000 |
Plural structurally related master pistons, cylinders or pulsator circuits
| 7 |
| 060537000 |
Programmed, self-cycled or self-pulsed
| 6 |
| 060593000 |
Having fluid motor driving piston of master unit
| 6 |
| 060584000 |
Having separately and manually operated structure for charging, discharging bleeding, or adjusting pulsator volume | 4 |
| 20090025384 | Feed Line for a Hydraulic System and Hydraulic System - The feed line for a hydraulic system, in particular of a motor vehicle, is formed, at least over part of its longitudinal extent, by a dimensionally variable body. The wall of the dimensionally variable body is elastically deformable, at least in regions, so that, when the flow passes through the dimensionally variable body, the cross section of the dimensionally variable body can be varied as a function of the pressure of the hydraulic medium. | 01-29-2009 |
| 20090205330 | Master Cylinder Assembly for a Hydraulic Actuation System for a Handlebar-Steered Vehicle - A master cylinder assembly for a hydraulic actuation system for a handlebar-steered vehicle including a fluid cavity having an adjustable length. The master cylinder assembly generally includes a housing, a piston assembly, an actuator and an adjuster. The housing is mountable to a frame member and includes a chamber having a fluid cavity with first and second regions. The first region is in fluid communication with the hydraulic actuation system. The piston assembly includes a piston slidably disposed within the fluid cavity. The actuator is operatively connected to the housing and operatively connected to the piston to slidably displace the piston between an open fluid circuit position permitting fluid flow between the first and second regions and a closed fluid circuit position blocking fluid flow between the first and second regions. The adjuster is operatively connected to the housing to adjust a length of the fluid cavity. | 08-20-2009 |
| 20140157770 | AUXILIARY DEVICE FOR VEHICLE MAINTENANCE - An auxiliary device for vehicle maintenance including a pneumatic cylinder and a multi-mode control vale unit at least having a foot vale is provided. One end of a cylinder body and a first end of an axial rod of the pneumatic cylinder are to be coupled to a steering wheel and a brake pedal, respectively. The foot vale is connected between an inlet and outlet portions and selectively permits the inlet and outlet portions to be communicated pneumatically with each other. When the inlet and outlet portions are communicated pneumatically with each other, pressurized air goes into the cylinder body and drives the axial rod moving away from the cylinder body. | 06-12-2014 |
| 20150135704 | BRAKE FLUID RESERVOIR WITH PRESSURE BALANCING - 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. | 05-21-2015 |
| 060563000 |
Expansible chamber of output pressurized directly by motive fluid and indirectly by a master driven by the motive fluid | 4 |
| 20110120121 | HYDRAULIC BRAKE BOOSTER COMPRISING A MOTOR - The present invention relates chiefly to a hydraulic brake booster comprising a motor, preferably an electric motor. | 05-26-2011 |
| 20120204553 | Pressure Transformation Method and Device for its Implementation - A method for transforming pressures of a system operating with pressure medium to optimize the travel speeds and/or forces of tasks utilizing pressure, area and flow ratios, employing valve structures, in which method, transforming with pressure transformers the pressure of the actuators differ from system pressure. A device implementing the method includes valve structures and pressure transformers. In the method, pressure transformers are switched when going above or below a set limit value controlling valves of actuators which requires the transformation of travel speed or force. In the device, pressure transformers are arranged to be switched when going above or below a set limit value controlling the valves for the actuator which requires higher travel speed or force. | 08-16-2012 |
| 20120324883 | MASTER CYLINDER DEVICE - A master cylinder device includes: a first pressurizing piston including a main body portion which defines a first pressurizing chamber for pressurizing a brake fluid, and a flange portion which is formed around an outer circumference of the main body portion and in front of which there is defined an opposing chamber; and an input piston which can be shrunk by operating a brake pedal. The master cylinder device further includes an electromagnetic open/close valve for making the opposing chamber and the inter-piston chamber communicate with a reservoir, and an electromagnetic open/close valve for prohibiting the shrink of the input piston. The master cylinder device with such a structure allows a pressurization of the brake fluid depending on an operation force in a state in which the shrink of the input piston is prohibited. | 12-27-2012 |
| 20130269338 | MASTER CYLINDER DEVICE AND HYDRAULIC BRAKE SYSTEM USING THE SAME - A master cylinder device includes a housing whose front side end is closed and which includes a third housing member separating an interior of the housing into a front side chamber and a rear side chamber and having an opening through the third housing member, a first pressurizing piston which includes a main body portion disposed in the front side chamber and which is moved forward by receiving a force for pressurizing the brake fluid to be supplied to a brake devices, and an input piston. In the master cylinder device, an input chamber into which a brake fluid is introduced is defined between a rear end of the main body portion of the first pressurizing piston and the third housing member. The input piston is fitted in the housing with seals, whereby, an inter-piston chamber across which the input piston and the pressure receiving piston face to each other. | 10-17-2013 |
| 060579000 |
Slave of first master drives master of another slave | 3 |
| 20110005221 | HYDRAULIC PRESSURE SUPPLY UNIT FOR A POWER SCREWDRIVER - The pressure supply unit has a pressure generating aggregate ( | 01-13-2011 |
| 20110120122 | Master Cylinder Comprising Means For Injecting Brake Fluid Into Said Master Cylinder, And Braking System Comprising Such A Master Cylinder - The present invention relates mainly to a braking system comprising a master cylinder comprising means of connection to a hydraulic braking circuit and means of connecting at least one chamber of the master cylinder to means of injecting brake fluid into said chamber. | 05-26-2011 |
| 20130283779 | MASTER CYLINDER FOR BRAKE SYSTEM - Disclosed is a master cylinder for brake systems including a cylinder body including a first cylinder having a first bore therein and a second cylinder having a second bore therein, the first and second cylinders being joined together by fastening members to allow the first and second bores to communicate with each other, a first and second piston installed to move forward and backward in the first and second bores, a first hydraulic pressure chamber adapted to be pressed by the first piston arranged in the first bore, and a second hydraulic pressure chamber adapted to be pressed by the second piston arranged in the second bore. Each of the first and second bores comprises a large diameter portion expanded to an inside of the cylinder body to increase a flow rate at an initial stage of braking and a small diameter portion narrowed from the large diameter portion. | 10-31-2013 |
| 060565000 |
Master and diverse non-pulsator drive of output member or members | 3 |
| 20110072812 | BRAKE FOR VEHICLE - Disclosed is a brake for a vehicle, capable of preventing a vacuum connection pipe connected to a brake booster from being rotated. The brake includes a brake booster generating boosting force and including a casing, a vacuum connection pipe coupled with the casing, a master cylinder body connected to the brake booster, and an oil tank communicated with the master cylinder body. The oil tank includes an anti-rotation member extending from one side of the oil tank toward the vacuum connection pipe to prevent the vacuum connection pipe from being rotated. | 03-31-2011 |
| 20110107759 | Pressure Generator of a Hydraulic Vehicle Brake System and Operating Method for This - The present invention relates to a pressure generator for a hydraulic vehicle brake system for the regulated generation of a hydraulic brake pressure in a brake circuit, the pressure generator having a multiple-piston pump for delivering a brake fluid with at least two pump pistons and associated pressure chambers, on which the pump pistons act, an actuator for actuating the multiple-piston pump, and a fluid feed line which extends to the pressure chambers and is configured for connection to a storage container, in which a hydraulic fluid is stored. At least one valve is arranged in the fluid feed line and divides the latter into a first section which is arranged upstream of the valve and into a second section which is arranged downstream of the valve, the valve being configured to optionally at least partly shut off or open the second section of the fluid feed line and therefore to control the fluid supply of at least one pressure chamber. | 05-12-2011 |
| 20110131974 | VEHICLE BRAKE SYSTEM - The invention relates to a vehicle brake system, having at least one supply container for delivering brake fluid to a master cylinder and/or to at least one wheel brake of the vehicle brake system. A precharging apparatus for increasing the effective pressure in the supply container is provided, in which the precharging apparatus generates compressed air for increasing the pressure. According to the invention, the precharging apparatus includes a first precharging device, which generates the compressed air from exhaust gases of an exhaust system of the vehicle, and/or a second precharging device, which generates the compressed air from the relative wind. | 06-09-2011 |
| 060574000 |
Automatic control of plural stage pressure generation or utilization | 3 |
| 20100326073 | VEHICULAR BRAKE SYSTEM - In a vehicular brake system, an input piston and a pressure piston are coaxially and axially movably supported in a cylinder, and a brake pedal is coupled to the input piston. Pressure chambers formed on the axially opposite sides of the input piston communicate with each other via a communication passage. A control oil pressure can be supplied to a first supply port of the communication passage, and a reaction-force oil pressure can be supplied to a second supply port of a reaction-force chamber of the input piston, while braking oil pressures can be delivered from delivery ports of the respective pressure chambers. | 12-30-2010 |
| 20090000295 | PRESS-DRIVEN TOOL ACTUATION SYSTEM - A hydraulically-operated press-driven tool actuation system includes a press-driven hydraulic power device and/or a hydraulically-powered tool actuator. In the tool actuator, at least two pistons are carried by a housing, and at least one return device is carried by the housing laterally inboard of the pistons. In the power device, a pump includes a piston disposed in a pump cylinder for pressurizing hydraulic fluid therein. An accumulator is in fluid communication with the pump cylinder, and includes a piston disposed in an accumulator cylinder that houses hydraulic fluid on one side of the piston. A body supports the pump and accumulator thereon and is in fluid communication between the pump and accumulator cylinders. The body includes a pressure relief valve downstream of the pump cylinder and upstream of the accumulator cylinder, and a check valve downstream of the accumulator cylinder and upstream of the pump cylinder. | 01-01-2009 |
| 20140182283 | HYDRAULIC PRESSURE GENERATOR - 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. | 07-03-2014 |
| 060571000 |
Double-acting slave unit or opposed slaves having a single output | 3 |
| 20090064676 | HYDROSTATIC DRIVE HAVING VOLUMETRIC FLOW EQUALISATION - The invention relates to a hydrostatic drive comprising a first and a second hydraulic pump ( | 03-12-2009 |
| 20130186083 | SLAVE CYLINDER - A slave cylinder includes a first input port provided to a first slave hydraulic chamber and which is connected to a master cylinder and is selectively cut off from the master cylinder by a first shut-off valve; a second input port provided to a second slave hydraulic chamber and which is connected to the master cylinder and is selectively cut off from the master cylinder by a second shut-off valve; a first atmosphere port formed in a first back chamber disposed in rear of the first slave hydraulic chamber and which moves together with a first piston; a second atmosphere port formed in a second back chamber disposed in front of the first slave hydraulic chamber and which moves together with a second piston; and a restricting means to restrict the second piston. The second atmosphere port is disposed in the vicinity of the restricting means. | 07-25-2013 |
| 20140298798 | Electro-Hydraulic Steering Control System - A steering control system includes a steering circuit, a primary control circuit and a redundant control circuit. The primary control circuit includes primary proportional control valves, and a primary pilot valve having a thermal bleed of pilot fluid to warm the primary pilot valve when not operating to control the steering circuit. The redundant control circuit includes secondary proportional control valves, and a pressure reducing valve having a thermal bleed orifice allowing fluid flow to warm the pressure reducing valve when not operating to control the steering circuit. The thermal bleeds may also flow past the proportional control valves to raise their temperatures. The circuits of the steering control system are contained in a single valve group housing. | 10-09-2014 |
| 060583000 |
Pulse fluid vessel embracing output piston and fluid displacing element | 2 |
| 20140096517 | PRIMARY PISTON COMPONENT FOR A MASTER CYLINDER OF A HYDRAULIC BRAKE SYSTEM AND METHOD OF OPERATING A HYDRAULIC BRAKE SYSTEM - A primary piston component for a master cylinder of a hydraulic brake system includes a primary piston housing and an additional piston component, which is configured to be at least partially movable into a cavity of the primary piston housing. An inner piston body extends through the cavity along a central line of the primary piston component. A braking force applied on a brake actuating element is transferable at least partially on the inner piston body, and further on the primary piston housing. The additional piston component is at least partially movable into the cavity between the inner piston body and the primary piston housing, and a brake booster force is transferable at least partially on the additional piston component, and via the inner piston body on the primary piston housing. A method of operating a hydraulic brake system is also described. | 04-10-2014 |
| 20140305121 | Combined Service Brake Cylinder and Spring Brake Cylinder Having a Bayonet Coupling - A combined service brake cylinder and spring brake cylinder for brake systems of vehicles is provided, wherein a bayonet coupling is configured between the spring brake cylinder and an intermediate wall. The bayonet coupling has locking segments protruding radially outward on an end-side edge of a wall of the spring brake cylinder and recess segments formed radially inward and recess segments corresponding thereto that are formed radially outward and formed on an annular chamber connected to the intermediate wall and locking segments protruding radially inward into the annular chamber. A bottom-side stop surface in the annular chamber forms an axial stop for the end-side wall edge of the spring brake cylinder. An annular seal is arranged between a circumferential surface of the edge of the wall of the spring brake cylinder pointing radially inward and the circumferential surface of the annular chamber pointing radially outward. A recess provided in the bottom of the annular chamber accommodates at least one end section of the annular seal, and end-face contact surfaces are provided on the locking segments of the spring brake cylinder for abutting on the bottom-side stop surface in the annular chamber. At least the and section of the annular seal is clamped between the recess in the bottom of the annular chamber and the edge of the wall of the spring brake cylinder. | 10-16-2014 |
| 060546000 |
Pulsator synchronizes movement of plural outputs | 1 |
| 20080271445 | HYDRAULIC CIRCUIT FOR SYNCHRONIZED HORIZONTAL EXTENSION OF CYLINDERS - A hydraulic system for synchronized movement of multiple cylinders in a horizontal plane includes a bidirectional pump, a shuttle valve cross-connected between pump outlets, flow-control check valves, and control valves which combine to reduce the number of valves in the hydraulic circuit and to reduce total cost of components for the system. The shuttle valve of the hydraulic system provides fluid for resynchronizing extension and retraction of multiple cylinder assemblies without disconnection of lines, provides air removal without disconnection of lines, allows easy addition/refill of hydraulic fluid, and allows excellent control of the extendable cylinder assemblies. | 11-06-2008 |
| 060536000 |
Plural correlated pulsators transmitting unlimited rotary input to unlimited rotary output | 1 |
| 20090249781 | System and method of increasing the output energy of a motor by transferring the output energy through a plurality of hydraulic networks - Today, the world is faced with many problems such as the Greenhouse Effect, global warming, ozone layer depletion and increased pollution. One direct cause of these problems has been linked to the emission from internal combustion engines. | 10-08-2009 |
| 060561000 |
Pressure balancing free piston or diaphragm between parallel pulsators | 1 |
| 20120006016 | HYDROPNEUMATIC PISTON RESERVOIR - This invention relates to a hydropneumatic piston reservoir ( | 01-12-2012 |
| Entries |
| Document | Title | Date |
|---|
| 20100005796 | Method for Creating Low Pressure In A Brake Activation Device of a Motor Vehicle Brake System - A method for creating low pressure in a brake activation device of a motor vehicle brake system, comprising a pneumatic brake force booster the interior of which is divided into at least one low-pressure chamber and one working chamber, a brake master cylinder and a pneumatic motor pump unit for creating the low pressure in the low-pressure chamber, which motor pump unit comprises a low-pressure pump and a motor driving the low-pressure pump, a low-pressure level in the low-pressure chamber or a pressure difference between the low-pressure chamber and the working chamber being detected by a sensor and the motor pump unit being activated by an electronic control unit if the pressure falls below a first predefined, lower low-pressure level Pe in the low-pressure chamber and being deactivated if a second predetermined, upper low-pressure level Pa is reached. | 01-14-2010 |
| 20100154407 | BRAKING CIRCUIT MASTER CYLINDER LIP SEAL - Master cylinder of a hydraulic braking circuit, particularly for a motor vehicle, comprising a piston ( | 06-24-2010 |
| 20100212313 | COMMON RAIL AND METHOD OF MANUFACTURING COMMON RAIL - A projection ( | 08-26-2010 |
| 20110016861 | VEHICLE BRAKE DEVICE - A vehicle brake device includes an elastic body being formed such that a circulation of an operation fluid is permitted from a front end to a rear end of the elastic body until a filling rate of the elastic body reaches a predetermined value in a filling area where deformation of the elastic body is stopped by restraint of a control piston in a state where a forward stroke of the control piston is less than at least a predetermined stroke, but the circulation of the operation fluid is stopped when the filling rate reaches the predetermined value or more. | 01-27-2011 |
| 20110126534 | HYBRID BRAKE SYSTEM - Disclosed is a hybrid brake system equipped with a pedal simulator having a parallel structure. The hybrid brake system includes an input shaft connected to a brake pedal, a pedal simulator provided therein with a control plunger connected with the input shaft, a master cylinder communicating with the pedal simulator and provided therein with first and second pistons, an oil supply part supplying oil to the pedal simulator and the master cylinder, and a boosting part communicating with the pedal simulator and forming repulsive force when the brake pedal is stepped on. | 06-02-2011 |
| 20110271670 | MOTOR-PUMP ASSEMBLY - Disclosed is a motor-pump assembly ( | 11-10-2011 |
| 20110277464 | Motor-Pump Assembly - Disclosed is a motor-pump assembly ( | 11-17-2011 |
| 20120085090 | Hydraulic Brake Master Cylinder with Back-up Ring - Disclosed herein is a hydraulic master cylinder body having a bore defined at least in part by a bore wall, wherein the bore wall includes an opening for hydraulic fluid to be passed into the bore, and a piston assembly situated at least substantially in the bore, the assembly having a piston with a piston body and at least one cup seal situated substantially around the piston body, the cup seal situated adjacent to the bore wall so as to be in sealing engagement therewith, and a back-up ring that is situated about the piston body, wherein the back-up ring is positioned to at least partially cover a portion of the cup seal that is adjacent to the bore wall and to prevent at least a portion of the cup seal from contacting the bore wall and the opening for hydraulic fluid during piston actuation. | 04-12-2012 |
| 20120096848 | CUP OF A MASTER CYLINDER, ADVANTAGEOUSLY A TANDEM MASTER CYLINDER AND TANDEM MASTER CYLINDER PROVIDED WITH SUCH CUPS - “Cup for master cylinder, advantageously a tandem master cylinder, and a tandem master cylinder fitted with such cups” | 04-26-2012 |
| 20120110994 | Sealed Master Cylinder and Plunger of Vehicle Hydraulic-Brake System - A sealed master cylinder and plunger of a vehicle hydraulic-brake system, includes a master cylinder, a plunger and a seal collar. The master cylinder is adjacent the plunger and has a holding slot disposed thereon and adjacent the plunger, and the seal collar provided in the holding slot. The seal collar comprises a collar body, separated into a circumferential inner wall and a circumferential outer wall, both of which are pliable. The sealed master cylinder and plunger further comprises a first fluid passage formed between the circumferential inner wall and the plunger and a second fluid passage formed between the circumferential outer wall and the holding slot. | 05-10-2012 |
| 20120124990 | SUPPORT CYLINDER FOR A SELF-ENERGIZING HYDRAULIC BRAKE - A pressure generating device generates a hydraulic pressure as a result of a tensile or compressive load. The device has connections, one of which can be rigidly connected to a frame by way of a mechanism for introducing a mechanical tensile or compressive load, a pressure cylinder and a piston unit extending at least partially and flexibly in the pressure cylinder and bounding a hydraulic chamber filled with hydraulic fluid jointly with the pressure cylinder. The chamber has a simple and inexpensive construction. The connections are connected to the pressure cylinder or the piston unit by way of a coupling device that is configured such that the same hydraulic chamber has pressure applied thereto under tensile load and under compressive load. | 05-24-2012 |
| 20120144822 | CYLINDER DEVICE - A cylinder device is characterized in: that it selectively realizes an operation-force dependent pressurizing state where brake fluid is pressurized by operation force and a high-pressure-source-pressure dependent pressurizing state where brake fluid is pressurized depending on a pressure from a high-pressure-source device; that there are defined an inter-piston chamber in front of an input piston by an insertion of the input piston into a pressurizing piston, an input chamber in the back of a flange of the pressurizing piston at the pressure from the high pressure source device, and an opposing chamber in front of the flange; and that the cylinder device has a mechanism elastically pressurizing an reaction force chamber formed by a communication between the inter-piston and the opposing chambers, and a mechanism switching communication/not-communication state between the reaction chamber and a reservoir. | 06-14-2012 |
| 20120186245 | ASSEMBLY MADE OF A PRESSURE MEDIUM STORAGE TANK AND A MANUALLY ACTUATED MAIN CYLINDER, IN PARTICULAR FOR A HYDRAULIC MOTORCYCLE BRAKE SYSTEM - The invention relates to an assembly including a pressure medium reservoir and a manually actuable master cylinder, in particular for a hydraulic motorcycle brake system, wherein the pressure medium reservoir is connected permanently to the master cylinder by at least one pressure medium connection, wherein the master cylinder has at least one pressure chamber, which can be connected to wheel brakes. According to the invention, provision is made for a protection device to be arranged in the region of the pressure medium connection, the device preventing air from penetrating into the pressure chamber and allowing air to escape in the direction of the pressure medium reservoir. | 07-26-2012 |
| 20120204552 | RESERVOIR TANK CONNECTION CONNECTOR, MASTER CYLINDER PROVIDED WITH THIS CONNECTOR, AND BRAKING DEVICE PROVIDED WITH THIS MASTER CYLINDER - Disclosed is a reservoir tank, comprising a connector body installed on a master cylinder, a hose connection tube body, which is arranged protruding from the edge of the connector body and has a hose connected with the reservoir tank connected thereto, and a conveying arm guide section as an interference preventing section, which is arranged on the connector body and prevents interference with the conveying jig when the connector body is supported by a conveying jig. When a conveying arm of the conveying jig abuts the conveying arm guide section and supports the connector body, the conveying arm will not interfere with the hose connection tube body due to the conveying arm guide section. | 08-16-2012 |
| 20120247099 | MASTER CYLINDER - A master cylinder includes a cylinder body formed with an annular concave portion at a position surrounding a space where a piston is inserted so as to fit in the cylinder body. An annular cup seal is provided in the annular concave portion and includes an inner lip portion coming into sliding contact with the outer periphery of a piston, an outer lip portion provided on the outside thereof, and a base portion arranged along a first inner wall surface of the annular concave portion. The cup seal further includes a plurality of projecting portions coming into abutment with a second inner wall surface of the annular concave portion. Clearance areas are formed between the first inner wall surface and the base portion at positions opposing the abutting portions between the projecting portions and the second inner wall surface. | 10-04-2012 |
| 20120324881 | MOUNTING STRUCTURE FOR BOOSTERS AND BOOSTER ASSEMBLY FOR VEHICLES HAVING THE SAME - Disclosed herein are a mounting structure for boosters and a booster assembly for vehicles having the same. The mounting structure for boosters to mount a booster provided with a casing formed by hermetically connecting a front cell and a rear cell includes a front bolt passing through the front cell, the inside of the front bolt being hollow, a tube having a cylindrical shape, the inside of which is hollow in the lengthwise direction, and provided with a front part being opposite the front bolt to communicate with the hollow of the front bolt and a rear part crossing the casing to pass through the rear cell, a support washer installed on the tube and connected to the rear portion of the front bolt to surround the outer circumferential surface of the rear portion of the front bolt, and a sealing member provided between the tube and the support washer. | 12-27-2012 |
| 20130055710 | BOOSTER ASSEMBLY FOR VEHICLE - A booster assembly includes a booster provided at an engine room partitioned from a passenger compartment by a partition plate, a master cylinder disposed outwardly of a front side of the front cell, and fastening members to simultaneously mount the booster and master cylinder to the vehicle. Each fastening member includes a tube extending through the booster and having a front portion extending through a flange of the master cylinder, nuts fastened to respective front portions of the tubes, to fasten the master cylinder to the booster, through-bolts extending through respective tubes and the partition plate, to be mounted to the front portions of respective tubes, and a non-circular coupler formed at a rear portion of each tube, to prevent the tube from rotating when the corresponding nut is fastened to the tube. The rear cell is provided with a hole having a shape mating with the non-circular coupler. | 03-07-2013 |
| 20130086900 | BRAKE MASTER CYLINDER - Disclosed is a brake master cylinder configured to sense a variation in magnetic flux in accordance with operation of a piston installed with a magnet, and thus to control activation of brake lamps. The brake master cylinder includes a cylinder body connected to a booster, first and second pistons to reciprocate in the cylinder body, a Hall sensor installed at an outside of the cylinder body, to sense operation of the pistons, for control of activation of brake lamps, a coupling shaft formed at an end of the second piston facing the first piston, and a magnet ring assembly installed at the coupling shaft such that the magnet ring assembly faces the Hall sensor. The magnet ring assembly includes a bushing centrally formed with a fitting hole to receive the coupling shaft, and a ring-shaped magnet fitted around the bushing, to exert magnetic force on the Hall sensor. | 04-11-2013 |
| 20130167526 | BRAKE SYSTEM OF STRADDLE TYPE VEHICLE - A rear brake system has a rod extending from a master cylinder that inputs the operational force of a brake pedal to the master cylinder, a coil spring coaxially arranged with the rod and providing reaction force to return the brake pedal to the state before operating the brake pedal, a reaction adjustment mechanism provided on the rod and configured so as to be movable in the axial direction of the rod. According to the position of the reaction adjustment mechanism in the axial direction of the rod, shrinkage of the coil spring in the axial direction of the rod can be adjusted. | 07-04-2013 |
| 20130205772 | MASTER CYLINDER FOR A MOTOR VEHICLE HYDRAULIC BRAKE SYSTEM - A motor vehicle hydraulic brake system master cylinder, having at least one piston which is arranged in a housing and displaceable along an axis as a result of brake actuation and to which a pressure chamber which can be connected to wheel brakes, and a refill chamber is assigned, wherein the pressure chamber in the non-actuated state can be connected to a fluid reservoir via a compensating bore and on actuation of the brake can be isolated therefrom by means of a cup seal arranged on the piston in order to build up pressure. The master cylinder having a cup seal arranged in a radially open, encircling groove of the piston which groove is formed by a first and a second radially encircling projection, wherein when the brake actuation is released additional fluid is drawn from the refill chamber in the direction of the pressure chamber via the second projection. | 08-15-2013 |
| 20130213033 | MASTER CYLINDER FOR A REGULATED BRAKING SYSTEM - 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. | 08-22-2013 |
| 20130269337 | BRAKE BOOSTER AND METHOD FOR OPERATING A BRAKE BOOSTER - A brake booster includes an input element actuatable by a driver, an actuator for generating a support force, an output element to which an input or support force may be applied and via which an actuating force may be applied to a piston of a brake master cylinder, and a force transmission unit having elastic properties, situated between the input element and the actuator, and the output element, and transmitting the input and/or support forces to the output element. An air gap, which in idle mode is smaller or larger than a desired air gap, is provided between the input element and the force transmission unit. A method for operating the brake booster includes generating a support force prior to a braking intent to be anticipated or immediately after detection of a braking intent, in a time span before or immediately after detection of an actuation of the input element. | 10-17-2013 |
| 20130276442 | Hydraulic Block for a Hydraulic Multi-Circuit Vehicle Braking System - A hydraulic block of a hydraulic multi-circuit vehicle braking system having braking force regulation includes an installation space for a hydraulic reservoir of the vehicle braking system that is isolated from a braking circuit, for example by closing a connecting line using a pressed-in ball. The installation space is connected to another braking circuit via an additional bore, wherein a larger storage volume is available to the braking circuit as a result. The necessary changes to the hydraulic block are small. | 10-24-2013 |
| 20130305706 | BRAKE BOOSTER AND METHOD FOR OPERATING A BRAKE BOOSTER - A brake booster includes an input element actuatable by a driver, an actuator for generating a support force, an output element to which an input or support force may be applied and through which an actuating force may be applied to a piston of a brake master cylinder, a force transmission unit having elastic properties, situated between the input element and the actuator, and the output element, and transmitting the input and/or support forces to the output element, and a preload unit acting on the force transmission unit to apply a force couple to the force transmission unit when the brake booster is in idle mode. A method for operating the brake booster includes generating a support force prior to a braking intent to be anticipated or immediately after detection of a braking intent, in a time span before or immediately after detection of an actuation of the input element. | 11-21-2013 |
| 20130312404 | Hydraulic Brake System with Controlled Boost - The brake system includes a pedal, a pedal simulator, and a brake pedal unit. The brake pedal unit includes an input piston connected to the brake pedal for operating the pedal simulator during a normal braking mode. The brake pedal unit further includes first and second output pistons actuated by the input piston during a manual push through mode such that the first output piston generates brake actuating pressure at a first output of the brake pedal unit, and the second output piston generates actuating pressure at a second output of the brake pedal unit. The brake system further includes a hydraulic pressure source for supplying fluid at a controlled boost pressure, and a hydraulic control unit adapted to be hydraulically connected to the brake pedal unit and the hydraulic pressure source. The hydraulic control unit includes a slip control valve arrangement and a switching base brake valve arrangement for switching the brake system between the normal braking mode, wherein boost pressure from the hydraulic pressure source is supplied to first and second vehicle brakes, and the manual push through mode wherein the brake actuating pressure from the first and second output pistons is supplied to the first and second vehicle brakes, respectively. | 11-28-2013 |
| 20140000254 | VEHICULAR HYDRAULIC-PRESSURE-GENERATION DEVICE AND VEHICULAR BRAKING-FORCE GENERATION DEVICE | 01-02-2014 |
| 20140026556 | Brake Booster with Position-Dependent Pressure Equalization - A brake booster for a motor vehicle brake system, comprises a force input element that is or can be connected to a brake pedal, a chamber arrangement with a working chamber and a vacuum chamber that are separated from one another by a movable wall, and a control device with a control valve, by which the working chamber can be optionally connected to the vacuum chamber or to the surrounding atmosphere as a result of a displacement of the force input element, wherein the control valve has a control valve housing, which is coupled to the movable wall and in which the force input element is guided in a displaceable manner against the action of a return spring together with a control piston, and wherein the control valve further comprises a valve element that is optionally prestressed into sealed abutment on a first valve seat provided on the control valve housing or into sealed abutment on a second valve seat provided on the control piston of the control valve by a tension spring. In order to reduce the actuating force, a pneumatic function chamber can be closed in a sealing manner by the valve element and can be optionally connected to the vacuum chamber or to the surrounding atmosphere according to a current actuating position of the force input element. | 01-30-2014 |
| 20140060037 | BRAKE SYSTEM MASTER-CYLINDER SEAL - Master-cylinder seal housed in a groove around a piston has a core connected to three annular and concentric lips. The core rests against a side of the groove and has: a surface provided with an interior edge followed by a peripheral platter cut by at least one channel, and an exterior crown provided with a connection zone formed by an interruption in the crown and deformable due to pressure within the seal to recreate the crown's continuity and impermeability while facilitating purging the brake system when there is no pressure in the channel and the connection zone. | 03-06-2014 |
| 20140150420 | MASTER CYLINDER, IN PARTICULAR FOR A CONTROLLED BRAKE SYSTEM - A master cylinder for a controlled brake system, including at least one piston which is displaceable in a housing and is sealed with respect to a pressure chamber by a sealing element arranged in an annular groove of the housing, which pressure chamber is connectable to an unpressurized supply chamber by control passages formed in the piston. The piston | 06-05-2014 |
| 20140165553 | PRIMARY PISTON FOR A TANDEM MASTER CYLINDER AND TANDEM MASTER CYLINDER EQUIPPED WITH SUCH A PRIMARY PISTON - 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. | 06-19-2014 |
| 20140165554 | MASTER CYLINDER ASSEMBLY IN BRAKE SYSTEM - A master cylinder assembly of the type comprises a housing ( | 06-19-2014 |
| 20140283512 | HYDRAULIC SYSTEM - A hydraulic system ( | 09-25-2014 |
| 20140298797 | BRAKING DEVICE - Disclosed is a braking device in which all multiple ports (for example, input ports ( | 10-09-2014 |
| 20140325978 | Movable Barrier Hydraulic Braking - A hydraulic brake apparatus, a movable barrier apparatus, a hydraulic brake kit, a method of stopping movement of a movable barrier, and a method installing a hydraulic brake assembly are described herein. A selectively operable piston mechanism converts rotation of a drive shaft of a movable barrier into hydraulic pressure used to operate a brake configured to stop movement of the drive shaft. | 11-06-2014 |
| 20140345270 | BRAKE BOOSTER DEVICE FOR A BRAKING SYSTEM OF A VEHICLE, AND METHOD FOR MANUFACTURING A BRAKE BOOSTER DEVICE FOR A BRAKING SYSTEM OF A VEHICLE - A brake booster device for a braking system of a vehicle includes: a booster body to which a brake-boosting force is exertable by an actuator device; a first piston rod component to which the brake-boosting force is at least partially transmittable via a first contact with the booster body, the first piston rod component contacting the booster body at a first contact surface such that the first piston rod component is at least partially adjustable; and a second piston rod component to which the brake-boosting force is at least partially transmittable via a second contact with the booster body, the second piston rod component contacting the booster body at a second contact surface such that the second piston rod component is adjustable together with the first piston rod component. | 11-27-2014 |
| 20140345271 | HYDRAULIC BRAKE SYSTEM - A hydraulic brake system for braking a vehicle, including a master cylinder device having a fluid-flow permission mechanism that permits a flow of a working fluid between an inter-piston chamber and a low-pressure source, wherein, when a pressure of the working fluid to be supplied to a brake device exceeds a set pressure upon advancing in association with an advancing movement of a brake operation member, a closing and opening mechanism for hermetically closing the inter-piston chamber and opening an opposing chamber to the low-pressure source is controlled so as to hermetically close the inter-piston chamber, while, when the pressure of the working fluid becomes lower than a set pressure upon retracting in association with a retracting movement of the brake operation member, the fluid-flow permission mechanism is controlled so as to permit the flow of the working fluid between the inter-piston chamber and the low-pressure source. | 11-27-2014 |
| 20150121861 | Composite Spring Retainer And Method Of Assembly In A Brake Master Cylinder - A cup shaped spring retainer is slidably disposed within a cup shaped piston, encapsulating a spring therebetween. The side wall of the spring retainer presents a plurality of recesses and a plurality of slots defining a plurality of fingers. A tang, projects radially outward at the distal end of each of the fingers to engage a retaining ring within the piston in a latch position. The combination of the spring retainer and the piston provide an arrangement whereby all of the fingers may be compressed with the spring retainer outside of the piston to an insert position with the tangs disposed in gripping engagement with the spring. After inserting the compressed spring retainer into the piston, the radial compression the of the fingers may be released to allow the fingers to expand from the insert position to the latch position at which point the deflection of the fingers is discontinued. | 05-07-2015 |
| 20150291139 | MASTER CYLINDER APPARATUS - A master cylinder apparatus includes: an input piston that can be moved forward by operating a brake operating member; a pressure piston provided in front of the input piston to be capable of moving relative to the input piston; and a stroke velocity ratio modification device capable of modifying a stroke velocity ratio, which is a ratio between a stroke velocity of the pressure piston and a stroke velocity of the input piston, in at least two stages within a range not greater than a predetermined value larger than 1. | 10-15-2015 |
| 20150292528 | PULSATION REDUCTION APPARATUS OF HYDRAULIC PISTON PUMP - The present invention relates to a pulsation reduction apparatus of a hydraulic piston pump, comprising: a block housing that has one end connected to the first hydraulic circuit and the other end connected to the second hydraulic circuit; a damper that is embedded in the block housing, absorbs pressure resulting from working fluid introduced to the first hydraulic circuit, assists with pressure increase of the second hydraulic circuit, and allows shape deformation; and viscosity damping units that are embedded in the block housing, are arranged between the first hydraulic circuit and the damper and between the second hydraulic circuit and the damper, and reduce viscosity of the working fluid introduced from the first and second hydraulic circuits, thereby reducing pressure pulsation and stably performing shock absorption and pressure increase at the same time with a relatively simple configuration. | 10-15-2015 |
| 20150298673 | BRAKE SYSYTEM MASTER-CYLINDER SEAL - A master-cylinder seal housed in a groove around a piston has a core connected to three annular and concentric lips. The core rests against a side of the groove and has: a surface provided with an interior edge followed by a peripheral platter cut by at least one channel, and an exterior crown provided with a connection zone formed by an interruption in the crown and deformable due to pressure within the seal to recreate the crown's continuity and impermeability while facilitating purging the brake system when there is no pressure in the channel and the connection zone. | 10-22-2015 |
| 20150321651 | MASTER BRAKE CYLINDER FOR A BRAKING SYSTEM OF A VEHICLE, AND MANUFACTURING METHOD FOR A MASTER BRAKE CYLINDER - 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. | 11-12-2015 |
| 20150321652 | BRAKING CONTROL DEVICE - The braking control device for controlling a master cylinder device includes a housing, an output piston, an input piston, a separation chamber opening and closing portion, and a driving hydraulic pressure generating portion, and is provided with an operation control for controlling the master cylinder device in an operation force operating state (regulator mode) in which the output piston is driven by operation force on a brake operation member and in a driving hydraulic pressure operating state (linear mode) in which the output piston is driven by driving hydraulic pressure from the driving hydraulic pressure generating portion; a brake operation judgment portion for judging the presence or absence of a brake operation and the probability thereof and a state transition limiter for limiting at least one of state transitions between the operating states when the presence of the brake operation and possibility thereof is determined. | 11-12-2015 |
| 20160031424 | DRIVER BRAKE FORCE SIMULATOR FOR A BRAKING SYSTEM OF A VEHICLE, AND MANUFACTURING METHOD FOR A DRIVER BRAKE FORCE SIMULATOR - A driver brake force simulator is provided for a braking system of a vehicle, including at least one spring, and a displaceable piston which delimits a pressure chamber formed in the driver brake force simulator and which is movable from its starting position, against an elastic force of the at least one spring, by a predefined maximum displacement travel in a first direction in such a way that a volume of the pressure chamber which is fillable with brake fluid is increasable. The driver brake force simulator includes at least multiple disk springs as the at least one spring. Moreover, a manufacturing method is provided for a driver brake force simulator for a braking system of a vehicle by supporting a displaceable piston of the driver brake force simulator with the aid of at least one spring. The displaceable piston is supported by at least multiple disk springs as the at least one spring. | 02-04-2016 |
| 20160076217 | METHOD AND APPARATUS FOR EARTH MOVING AND SURFACE GRADING - A tandem system having multiple fluid powered cylinders for operation of motor graders and other earth-moving equipment that is capable of interfacing with and being controlled by conventional two dimensional (“2-D”) and three dimensional (“3-D”) grade control systems, responds to encountered grade changes and adjusts elevation and a cross-slope to match predetermined project design specifications. Each cylinder member has at least one master area and at least one slave area. | 03-17-2016 |
| 20160090070 | CYLINDER DEVICE AND VEHICLE BRAKE SYSTEM - A cylinder device includes a regulation mechanism that regulates separation distance between a front piston and a rear piston. A spring seat member of the regulation mechanism includes a spring reception part that projects toward a retainer side to receive a rear end of a spring, a cup seal holding part that projects on an opposite side from the retainer to hold a cup seal arranged on the rear piston, and a projection part that projects on the opposite side from the retainer. The projection part becomes abuttable on the retainer by a stroke of the rear piston if the spring reception part and the cup seal holding part are installed reversely-oriented on the rear piston. | 03-31-2016 |
| 20160090150 | HYDRAULIC PRESSURE MASTER CYLINDER FOR BAR-HANDLE VEHICLE - Cup seals are fitted to a cylinder hole of a hydraulic pressure master cylinder. A plunger is movably inserted into the cylinder hole via the cup seals. A fluid chamber is formed on an outer circumferential side of the cylinder hole and between the cup seals so as to communicate with a fluid storage chamber through a fluid communication hole. The plunger is formed in a cylindrical shape having a bottom and provided with a recess portion opening toward a bottom portion of the cylinder hole. A hydraulic pressure chamber is defined between the recess portion and the bottom portion. Plural communication ports are formed in a circumferential wall of the recess portion, to penetrate the circumferential wall. When the plunger is in an initial position and is in a non-operating state, the communication ports connect the hydraulic pressure chamber and the fluid chamber. | 03-31-2016 |
| 20160114774 | MASTER CYLINDER FOR BRAKE SYSTEM - Disclosed is a master cylinder for a brake system. The master cylinder includes a cylinder body that has a bore therein; at least one piston provided in the bore to be moved forwards and rearwards; a liquid pressure chamber compressed by the piston; a brake liquid port that is connected to a reservoir and configured to supply brake liquid to the liquid pressure chamber; and a brake liquid discharge opening for discharging the brake liquid in the liquid pressure chamber to a wheel brake of a wheel. A valve unit that includes a check valve to control the unidirectional flow of the brake liquid that is introduced from the reservoir to the liquid chamber and a fluid resistance hole opened in two directions and is smaller than the size of the brake liquid discharge opening is provided in the brake liquid port. | 04-28-2016 |
| 20160152220 | Electromagnetic Servo Brake | 06-02-2016 |
| 20160159330 | Brake Control Unit - A brake control unit includes a primary piston and a secondary piston that respectively define a primary chamber and a secondary chamber. The primary piston carries an intermediate piston that slides in the secondary piston. A primary insulating seal is disposed between the pistons such that the primary insulating section of the primary insulating seal only depends on the equivalent section connecting the force applied at the inlet and the secondary pressure. The ratio of the hydraulic sections is configured to be modified without having to intervene on the primary and secondary pressure seals for the main piston and the secondary seal by way of modifying the section of the plunger piston and that of the seal thereof. | 06-09-2016 |
| 20160251009 | BRAKE BOOSTER DEVICE FOR A BRAKING SYSTEM OF A VEHICLE AND A MANUFACTURING METHOD FOR A BRAKE BOOSTER DEVICE FOR A BRAKING SYSTEM OF A VEHICLE | 09-01-2016 |
| 20220135181 | SADDLE-RIDING TYPE VEHICLE - This saddle-riding type vehicle includes: a transmission that includes a clutch operated by an operation of a slave cylinder; an oil pressure actuator that includes a master cylinder which generates an oil pressure on an operation oil; an oil pressure valve unit that controls transmission of the oil pressure generated by the master cylinder to the slave cylinder; a master-side connection pipe arrangement that connects the master cylinder to the oil pressure valve unit; and a slave-side connection pipe arrangement that connects the oil pressure valve unit to the slave cylinder, wherein the slave cylinder and the oil pressure valve unit are arranged on one side part in a vehicle width direction of the saddle-riding type vehicle, and the oil pressure actuator is arranged on another side part in the vehicle width direction of the saddle-riding type vehicle. | 05-05-2022 |
