A brake caliper assembly may comprise a caliper body comprising an inner body and an outer body and a hose connection; the inner body may comprise a piston set and bleed port; the outer body may comprise a piston set and bleed port; a fluid path within the caliper body may comprise an inner body segment between the bleed port and the piston set of the inner body and an outer body segment between the bleed port and the piston set of the outer body; air can be removed from the inner body segment of the fluid path within the caliper body at the bleed port by flowing fluid between the hose connection; air can be removed from the outer body segment of the fluid path within the caliper body at the bleed port by flowing fluid between the hose connection. Air can be removed from the fluid path within the caliper body by flowing fluid between the bleed port of the inner body segment and the bleed port of the outer body segment. Each piston set may comprise at least two pistons; each body may comprise a fluid path across each piston.

A hydraulic anti-lock brake wheel cylinder includes a cylinder body with a first cavity having an end cover, a first oil chamber interface, a second oil chamber interface and an oil return interface. A first piston is arranged within the first cavity, a first spring between the first piston and the end cover, a first oil chamber between the first piston and a bottom of the first cavity, the first oil chamber communicating with the first oil chamber interface; the first piston having a second cavity, a second piston arranged within the second cavity; a second spring between the second piston and a bottom of the second cavity, a second oil chamber between the second piston and a top of the second cavity; a core tube within the cylinder body, and one end of the core tube communicating with the second oil chamber, the other end communicating with the second oil chamber interface; the oil return interface communicating with the first oil chamber when the first piston moves outwards to a set position.

A caliper brake includes: a brake disc; an inner brake pad positioned to an inner side of the brake disc; an outer brake pad positioned to an outer side of the brake disc; a first pressing member configured to press the inner brake pad toward the brake disc; a housing including a finger portion configured to press the outer brake pad toward the brake disc with a reaction force caused by a pressing force from the first pressing member; a second pressing member neighboring the first pressing member and configured to operate independently from the first pressing member to press the inner brake pad toward the brake disc; and a third pressing member being opposite to the second pressing member with the brake disc interposed therebetween and configured to operate independently from the first pressing member to press the outer brake pad toward the brake disc.

The present invention relates to a brake caliper (1) of the floating type of a disc brake (100) comprising:

a bracket or support element (2) configured to be connected to a vehicle,

a caliper body or floating element (3),

wherein the caliper body (3) comprises a first caliper body portion or caliper body vehicle-side portion (3.1), wherein the first caliper body portion (3.1) delimits at least one housing seat (5) for thrust means (5a);

wherein the caliper body (3) comprises a second caliper body portion or cantilevered caliper body portion (3.2), wherein the second caliper body portion (3.2) projects from the first caliper body portion (3.1) at least in the axial direction (A-A);

at least one caliper body sliding guide or caliper body guide pin (11), wherein said at least one caliper body sliding guide (11) is arranged between said caliper body (3) and said bracket (2) to allow a relative sliding between the caliper body (3) and the bracket (2) along an axial direction (A-A);

at least two pads (6) having a support plate (7) and a friction material lining (8), each of said at least two pads (6) being positionable on a side of a brake disc (4) of said disc brake (100) facing opposite braking surfaces (4a) of a braking band (4b) of the brake disc (4);

said brake disc (4) being a rotor adapted to rotate about a rotation axis (10) which defines said axial direction (A-A), parallel to said rotation axis (10), a radial direction (R-R), orthogonal to said rotation axis (10), and a circumferential direction (C-C) orthogonal to said radial (R-R) and axial (A-A) directions;

at least one pad guide pin (12) supported by said bracket (2) and which extends in the axial direction (A-A), said pads (6) being slidingly mounted to said pad guide pin (12) so as to allow said pads (6) to slide in the axial direction (A-A) along said pad guide pin (12);

at least one spring (15), shaped to be arranged straddling the brake disc (4), wherein said spring (15) applies an elastic bias to the pads (6) so as to elastically bias the pads (6) away from the brake disc (4) and so as to cause, by means of at least one of said pads (6), the caliper body (3) to slide in said axial direction (A-A), in the direction in which the second caliper body portion (3.2) moves away from the brake disc (4);

Provided in a device for activating a wheel brake of a vehicle, having a tensioning installation which has a spindle drive, are two electric motors, the first electric motor by way of a first gear mechanism acting bi-directionally on the spindle drive. In order for the position of the tensioning installation, once attained, to be fixed in a parking brake, a second electric motor by way of a second gear mechanism, which has a self-locking worm gear mechanism and by way of at least one releasable coupling that acts uni-directionally in the activating direction, is coupled to the spindle drive. The coupling is composed of a cam on an output shaft of the first gear mechanism, and a pin on an output element of the worm gear mechanism. Since the cam cannot be reversed beyond the pin, a latching position of the tensioning installation is defined in this way.