Abstract: Disclosed is a friction assembly for a railway disc brake system, this friction assembly including, on the one hand, a brake head including an upper face with a receiving slide, and a lower face, and on the other hand, shoe of friction material and including a first face which is the friction face, and a second face with a profile member configured to engage with the receiving slide, the shoe including a duct establishing sealed communication between a first space bordered by the first face and a second space bordered by the second face, the friction assembly further including a through-hole of central axis A, provided in the brake head and located in line with the duct, and a connection bushing in the through-hole and forming a connection with the duct. The friction assembly includes a return mechanism capable of pressing the connection bushing against the profile member.

Abstract: Disclosed is a system for capturing braking particles from a friction braking system, which includes a vacuum source, a pneumatic circuit which connects the friction braking system to the vacuum source, and a particle filtration system located on the pneumatic circuit and including a support and a filter which is mounted on the support and which, during operation, becomes clogged with particles, preferentially on the surface. The capture system further includes a storage container which is able to receive particles that become detached from the filter.

Abstract: A brake pad includes a sole plate with outer and inner faces, and a lining made of friction material fixed to the inner face, the lining being delimited by friction and attachment faces, and inner, outer, rear, and front edges. The lining has a collection groove open on the friction face near the rear edge, the sole plate including a suction hole in fluid communication with the collection groove, this hole being connected to a negative pressure source. The collection groove is extended, at an end, by a duct of which the outer end is open away from the friction face, via an inlet, and of which the inner end is open in the collection groove via an outlet forming a cross-sectional jump with the groove. During operation, a negative pressure exists between the inlet and the collection groove one on each side of the duct.

Abstract: Disclosed is a system for suctioning braking particles from a friction braking system of a vehicle, the suction system including a negative-pressure source, a suction mouth, a filter, a pneumatic circuit connecting the suction mouth to the negative-pressure source, and a control unit configured to control the negative-pressure source, the suction system also including a pressure sensor for measuring the pressure prevailing in the pneumatic circuit, the control unit controlling the negative-pressure source so that the pressure in the pneumatic circuit reaches or tends to meet a predetermined negative-pressure setpoint, and an associated method.

Abstract: Disclosed is a friction assembly for a railway disc brake system for railway rolling stock, the friction assembly including a brake head on the one hand, and on the other hand at least one wear plate made of friction material including a first face which is the friction face, and a second face opposite to the first face, the wear plate being suitable for being integrally secured to the brake head, the friction assembly further including a part able to collect the particles emitted by the wear plate. The part includes a connection able to engage with a fastening element serving to fasten the friction assembly to a brake shoe in such a way that the part is held in a position of being integrally secured to the brake head when the fastening element is fastening the friction assembly to the brake shoe.

Abstract: The brake pad for a disk brake includes a lining and a plate. The lining includes:—a friction face and a fastening face;—a rear edge;—an inner edge and an outer edge; and—a collection groove extending into the inner edge or outer edge. The plate has a hole, the hole being connected to a vacuum source via communication element. The lining has a rear region including the rear edge and the collection groove, and a chamfered portion such that an area of a friction surface of the rear region increases when a thickness of the rear region decreases, the collection groove being located at a distance from a free surface of the chamfered portion and having a cross-section which extends obliquely towards the free surface of the chamfered portion.

Abstract: The brake pad (10A, 10B) comprises a lining (22) made of friction material and a plate (20) supporting the lining (22). The lining (22) comprises: —a rear edge (34) located on the side where the disk (9) is able to come out of an interface with the pad (10A, 10B) when the disk (9) rotates in an direction of travel of the vehicle, and a front edge (36); —a collection groove (3) that opens into the friction face (30) and is located close to the rear edge (34). The lining (22) has a rear region (60) comprising the rear edge (34) and the collection groove (3), and a front region (62) comprising the front edge (36), the front region (62) having a chamfered portion (66) such that an area of a friction surface of the front region (62) increases when a thickness of the front region (62) decreases.

Abstract: Disclosed is a friction assembly for a railway disc brake system, this friction assembly including, on the one hand, a brake head including an upper face with a receiving slide, and a lower face, and on the other hand, shoe of friction material and including a first face which is the friction face, and a second face with a profile member configured to engage with the receiving slide, the shoe including a duct establishing sealed communication between a first space bordered by the first face and a second space bordered by the second face, the friction assembly further including a through-hole of central axis A, provided in the brake head and located in line with the duct, and a connection bushing in the through-hole and forming a connection with the duct. The friction assembly includes a return mechanism capable of pressing the connection bushing against the profile member.

Abstract: Disclosed is a system for suctioning braking particles from a friction braking system of a vehicle, the suction system including a negative-pressure source, a suction mouth, a filter, a pneumatic circuit connecting the suction mouth to the negative-pressure source, and a control unit configured to control the negative-pressure source, the suction system also including a pressure sensor for measuring the pressure prevailing in the pneumatic circuit, the control unit controlling the negative-pressure source so that the pressure in the pneumatic circuit reaches or tends to meet a predetermined negative-pressure setpoint, and an associated method.

Abstract: A brake pad includes a sole plate with outer and inner faces, and a lining made of friction material fixed to the inner face, the lining being delimited by friction and attachment faces, and inner, outer, rear, and front edges. The lining has a collection groove open on the friction face near the rear edge, the sole plate including a suction hole in fluid communication with the collection groove, this hole being connected to a negative pressure source. The collection groove is extended, at an end, by a duct of which the outer end is open away from the friction face, via an inlet, and of which the inner end is open in the collection groove via an outlet forming a cross-sectional jump with the groove. During operation, a negative pressure exists between the inlet and the collection groove one on each side of the duct.

Abstract: The brake pad for a disk brake includes a lining and a plate. The lining includes:—a friction face and a fastening face;—a rear edge;—an inner edge and an outer edge; and—a collection groove extending into the inner edge or outer edge. The plate has a hole, the hole being connected to a vacuum source via communication element. The lining has a rear region including the rear edge and the collection groove, and a chamfered portion such that an area of a friction surface of the rear region increases when a thickness of the rear region decreases, the collection groove being located at a distance from a free surface of the chamfered portion and having a cross-section which extends obliquely towards the free surface of the chamfered portion.

Abstract: The brake pad (10A, 10B) comprises a lining (22) made of friction material and a plate (20) supporting the lining (22). The lining (22) comprises: —a rear edge (34) located on the side where the disk (9) is able to come out of an interface with the pad (10A, 10B) when the disk (9) rotates in an direction of travel of the vehicle, and a front edge (36); —a collection groove (3) that opens into the friction face (30) and is located close to the rear edge (34). The lining (22) has a rear region (60) comprising the rear edge (34) and the collection groove (3), and a front region (62) comprising the front edge (36), the front region (62) having a chamfered portion (66) such that an area of a friction surface of the front region (62) increases when a thickness of the front region (62) decreases.