公开(公告)号：WO2022112936A1

公开(公告)日：2022-06-02

申请号：PCT/IB2021/060852

申请日：2021-11-23

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro

IPC: B60T8/36 ,  B60T15/02 ,  B60T8/32

Abstract: A valve unit (10) for an anti-lock braking system (ABS) comprises a valve body (11), a piston (18) movable in the valve body, and an elastic element (34) acting on the piston. The valve body has an outlet port (14), an inlet port (17), a primary chamber (15) communicating with the outlet port, an expansion chamber (16) with an outflow passage (51) that achieves fluid communication between the primary chamber and the expansion chamber, and a bypass passage (50) between the inlet port and the outlet port. The piston (18) is movable in the primary chamber (15) and has a longitudinal through cavity (31). The piston has a first transversal surface, facing away from the outlet port, and a second transversal surface opposite the first and facing away from the outlet port, where the first transversal surface has an area smaller than the area of the second transversal surface. The elastic element (34) exerts an elastic force to move the piston (18) away from the outlet port (14). The valve unit (10) is activatable by the pressure of the brake fluid in the primary chamber (15).

公开(公告)号：WO2022144295A8

公开(公告)日：2022-07-07

申请号：PCT/EP2021/087461

申请日：2021-12-23

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  STRUVE', Benjamin Chetwood

IPC: B60T8/36 ,  B60T13/662 ,  B60T7/042 ,  B60T8/329 ,  B60T8/3615

Abstract: A valve unit (10) for an ABS system has a single hydraulic chamber (15) configured to receive brake fluid, with a delivery port (14) for supplying brake fluid to a brake caliper (G), and a passage (50) for letting brake fluid from a master cylinder (M) into the single hydraulic chamber (15). A single piston (18), longitudinally movable within the single hydraulic chamber (15), has first transverse surfaces facing the delivery port and defining as a whole a first transverse area, second transverse surfaces facing away from the delivery port (14) and defining as a whole a second transverse area greater than the first transverse area. A longitudinal cavity (31) extends in the single piston (18) establishing fluid communication between the first transverse surfaces and the second transverse surfaces, whereby a displacement of the piston towards the delivery port (14) occludes the passage (50) and increments the volume available for the brake fluid in the hydraulic chamber.

公开(公告)号：WO2021161160A1

公开(公告)日：2021-08-19

申请号：PCT/IB2021/051027

申请日：2021-02-09

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  CANALE, Roberto

IPC: B60T11/20

Abstract: A control device comprises two brake master cylinders (13, 14), both of which may be operated simultaneously by the same single manual control lever (15), according to a combined or integral braking mode. A switching element (27), associated with the manual control lever (15), may exclude one (14) of the two brake master cylinders.

公开(公告)号：WO2023062122A1

公开(公告)日：2023-04-20

申请号：PCT/EP2022/078494

申请日：2022-10-13

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  GIACCARDI, Matteo

IPC: F16D65/095 ,  F16D65/00 ,  F16D55/228 ,  F16D69/04

Abstract: A backing plate (10) for a hydraulic brake of a two-wheeled vehicle is made of plastic material and has a first face (11) and a second face (13) opposite each other. The first face (11) is configured to fixedly carry a layer of friction material (8). Formed within the thickness (t) of the backing plate (10) is an undercut recess (14) that opens on the second face (13) and is configured to receive and retain a corresponding portion (17) of a floating piston (15) for brake actuation.

公开(公告)号：WO2022249095A1

公开(公告)日：2022-12-01

申请号：PCT/IB2022/054899

申请日：2022-05-25

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  STRUVE', Benjamin Chetwood

IPC: B60T11/28 ,  B60T15/02 ,  B60T15/00

Abstract: A hydraulic brake distributor comprises a first inlet (11) which may be hydraulically connected to a first brake control of a vehicle, a second inlet (16) which may be hydraulically connected to a second brake control of the vehicle, a first outlet (12) which may be hydraulically connected to a first brake of the vehicle, a second outlet (17) which may be hydraulically connected to a second brake of the vehicle, a first channel (13) which sets the first inlet (11) and the first outlet (12) in direct fluid communication, a branch channel (22) which sets the first channel (13) in fluid communication with a first internal cavity (14), and a cutoff valve (14, 18, 24) which is arranged within the first internal cavity (14) and may be actuated in response to brake fluid being sent to the second inlet (16) so as to interrupt the fluid communication through the branch channel (22).

公开(公告)号：WO2023281351A1

公开(公告)日：2023-01-12

申请号：PCT/IB2022/055943

申请日：2022-06-27

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  CANESTRARI, Andrea

IPC: B60T8/36

Abstract: A valve unit for an ABS system includes a valve body (10, 110), a cutoff piston (18, 118) movable in an inner cavity (22) of the valve body, sliding contact seals arranged at the interface between the cutoff piston and the inner cavity. The internal cavity is hydraulically connectable with a delivery port (14) to a brake caliper, an inlet conduit (20), and an expansion chamber (33). The seals define with the cutoff piston and the inner cavity an axially movable hydraulic chamber (15, 115). The cutoff piston is movable between a first position, in which the hydraulic chamber is in fluid communication with the expansion chamber and the delivery port, and not with the inlet conduit, and a second position, in which the hydraulic chamber is in fluid communication with the delivery port and the inlet conduit, and not with the expansion chamber.

公开(公告)号：WO2022144295A1

公开(公告)日：2022-07-07

申请号：PCT/EP2021/087461

申请日：2021-12-23

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  STRUVE', Benjamin Chetwood

IPC: B60T8/36

Abstract: A valve unit (10) for an ABS system has a single hydraulic chamber (15) configured to receive brake fluid, with a delivery port (14) for supplying brake fluid to a brake caliper (G), and a passage (50) for letting brake fluid from a master cylinder (M) into the single hydraulic chamber (15). A single piston (18), longitudinally movable within the single hydraulic chamber (15), has first transverse surfaces facing the delivery port and defining as a whole a first transverse area, second transverse surfaces facing away from the delivery port (14) and defining as a whole a second transverse area greater than the first transverse area. A longitudinal cavity (31) extends in the single piston (18) establishing fluid communication between the first transverse surfaces and the second transverse surfaces, whereby a displacement of the piston towards the delivery port (14) occludes the passage (50) and increments the volume available for the brake fluid in the hydraulic chamber.

公开(公告)号：WO2022112984A1

公开(公告)日：2022-06-02

申请号：PCT/IB2021/060958

申请日：2021-11-25

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro

IPC: B60T8/36 ,  B60T15/02 ,  B60T8/32

Abstract: A valve unit for an anti-lock braking system of a vehicle comprises a piston (18) longitudinally movable in a primary chamber (15) connectable to an outflow chamber (16). The piston has an internal channel (40) having a first opening (41) formed in a transversal surface (36) of the piston and facing longitudinally to a stationary sealing element (39), and a second opening (42) arranged on a lateral surface (37) of the piston which is received in a section (20) of the primary chamber (15) where an outflow passage (51) opens between the primary chamber and the outflow chamber.

公开(公告)号：WO2021260149A1

公开(公告)日：2021-12-30

申请号：PCT/EP2021/067420

申请日：2021-06-24

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： STRUVE, Benjamin Chetwood ,  BONARDO, Sandro ,  CANESTRARI, Andrea ,  CANOVA, Daniele

IPC: B62L3/02 ,  B60T8/17 ,  B60T8/32 ,  B60T8/1706 ,  B60T8/3225 ,  B62L3/023

Abstract: An anti-lock braking unit comprises a single actuating solenoid (31) acting on a piston (40) of an associated valve unit (30). The solenoid moves the piston within a primary chamber (38) which is in fluid communication with a brake calliper. The movement the piston closes a bypass passage (50), formed within the valve unit, that normally connects a master cylinder to the brake calliper. By closing the bypass passage (50), the buildup of pressure acting on the calliper is stopped. Simultaneously, the same actuating movement of the piston (40) opens an outflow passage within the valve unit, allowing the brake fluid to vent from the primary chamber (38) into an expansion chamber. The expansion chamber provides an increased volume for the brake fluid contained between the valve unit (30) and the brake calliper, thereby decreasing the pressure of the brake fluid acting on the calliper.

公开(公告)号：WO2021124310A1

公开(公告)日：2021-06-24

申请号：PCT/IB2020/062295

申请日：2020-12-21

Applicant: RAICAM DRIVELINE S.R.L.

Inventor： BONARDO, Sandro ,  GIACCARDI, Matteo

IPC: B62L3/08 ,  B60T8/26 ,  B60T11/10 ,  B62L3/02 ,  B60T11/101 ,  B60T8/261 ,  B62L3/023

Abstract: A hydraulic brake distributor for a two-wheeled vehicle, comprising an outer body (11) which forms an internal cavity (12) that accommodates two floating piston valve elements (30, 40) which are axially movable and mutually coupled in a telescopic manner. One of the two piston valve elements (30) has an internal through-channel (31).