A stroke-controlled balancing device for hydraulic braking systems, comprising a balancing duct, a normally closed balancing valve, configured, in use, to maintain a connection between the hydraulic braking system and the balancing duct either closed or open, a stem having an external surface and an internal surface. A balancing channel is provided on the internal surface of the stem, said channel being hydraulically connected to the balancing duct, and the balancing valve is configured to slide, in use, along the external surface of the stem in order to open the connection between the braking system and the balancing duct. A braking system comprising the balancing device, as well as a method of operation of the braking system, are also described.

A brake device includes a brake pad, a pad thruster connected to the brake pad to linearly move the brake pad, and a caliper body provided with a cylinder space allowing the pad thruster to be seated therein. The pad thruster may include a conversion assembly configured to convert rotational motion into rectilinear motion, and at least two pistons connected to one end of the conversion assembly. The conversion assembly is seated in the cylinder space, and the at least two pistons are positioned outside of the cylinder space.

A low-pressure vehicle braking system and method of operation that controls the supply of brake fluid based on the pressure differential between left and right master cylinders associated with the different wheel brakes allowing for pressure harmonization between the left and right wheel brake circuits and a brake system module suitable for installation on an existing vehicle.

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.

An interlocking brake system structure provides braking force in response to a force caused by operation of brake levers even when disk brakes are used for both front and rear wheel brakes. A saddle riding type vehicle includes an interlocking brake lever on a second handle from among the left handle and the right handle to interlock a front wheel brake device and a rear wheel brake device. An operation force distributor distributes operation force, caused by an operation of the interlocking brake lever, between the front wheel brake device and the rear wheel brake device. An interlocking wire receives and transmits the operation force distributed at the operation force distributor to the front wheel brake device.

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.

A pump housing has at least two inlet valve openings located in a first row, at least two outlet valve openings located in a subsequent second row, and at least one high-pressure switching valve opening and at least one changeover valve opening located in a further subsequent fourth row. At least one connection for a wheel pressure sensor is positioned in a third row between the second and fourth rows. At least one connection for a master cylinder pressure sensor is positioned in a fifth row following the fourth row.

A braking system for a machine includes a first valve assembly having a first electronically actuated proportional valve, and a second valve assembly having a second electronically actuated proportional valve. The braking system includes a first pressure sensor and a second pressure sensor disposed downstream of the first and second valve assemblies, respectively. The first and second pressure sensors are configured to determine a first pressure and a second pressure of a braking fluid from the first and second valve assembly. The braking system also includes a controller configured to receive a signal indicative of the first pressure and the second pressure of the braking fluid and compare the first pressure and the second pressure. The controller is configured to selectively actuate at least one of the first electronically actuated proportional valve and the second electronically actuated proportional valve to substantially equalize the first pressure and the second pressure.

Disclosed are a pressure control method and a pressure control device for a braking cylinder of a rail vehicle, and the rail vehicle. The method includes the following steps: acquiring the air charge-release volume of the braking cylinder of the rail vehicle and the air flowrate of the braking cylinder; determining the charge-release duration according to the air charge-release volume of the braking cylinder and the air flowrate of the braking cylinder, and controlling the charge-release working duration of the air charge-release solenoid valve according to the air charge-release duration; when the working duration of the air charge-release solenoid valve reaches the charge-release duration, acquiring the predictive pressure of the braking cylinder, and controlling the working state of the air charge-release solenoid valve according to the predictive pressure.

A pressure control device has a device body partially delimiting a first circuit side opening, a second circuit side opening, and a conduit having a first conduit portion connectable to a first circuit to receive a first circuit fluid at a first circuit pressure and a second conduit portion connectable to a second circuit to receive a second circuit fluid at a second circuit pressure. A pressure adjusting mechanism controls the first and/or second circuit pressure to reach an actuating pressure. When at least one of the first and second circuit pressures is lower than a threshold pressure, the pressure adjusting mechanism prevents fluid passages between the first and second conduit portions to actuate either a first or a second braking device. When the first and second circuit pressures are both higher than the threshold pressure, the pressure control connects the first and second conduit portions to actuate the first and second braking devices.