Schäferjohann, Volker

The invention relates to an electronic control unit (1) for controlling application circuits, said electronic control unit (1) comprising:a housing (2) with a front opening,a printed circuit board (3) with electronic components (5),at least one connector (4; 4a, 4b, 4c, 4d, 4e) being mounted on a front end (3a) of said printed circuit board (3) and extending in a longitudinal direction (X),a frame comprising a lower frame part (6) and an upper frame part (8), wherein said lower frame part (6) and said upper frame part (8) being fixed to each other thereby holding or clamping said connectors (4) therebetween,wherein at least one of said frame parts (6, 8) comprises at least two spacers (18) protruding in a vertical direction (Z) between two adjacent connectors (4) of said connectors (4), thereby holding or clamping said at least one connector (4),wherein said printed circuit board (3) with said frame (6, 8) is inserted into said front opening of said housing (2) in said longitudinal direction (X),wherein said frame (6, 8) is fixed to said housing (2).

The invention relates to a spring brake actuator (1) for an air brake system of a motor vehicle, in particular of a commercial vehicle, comprising a brake cylinder (2) having a spring chamber (12), a parking pressure chamber (14), and a spring brake piston assembly (9) that is movably disposed inside the brake cylinder (2) and sealingly separates the spring chamber (12) from the parking pressure chamber (14), wherein the spring chamber (12) comprises a compression spring (11) that is configured to push the spring brake piston assembly (9) from a retracted position towards an extended position as a function of pressurized air being released from the parking pressure chamber (14), wherein the spring brake piston assembly (9) is configured to move towards the retracted position as a function of pressurized air being introduced into the parking pressure chamber (14); and an internal breather valve (21) in fluid communication with the spring chamber (12) and configured to allow for pressure compensation in the spring chamber (12) when the spring brake piston assembly (9) moves towards the extended position. It is proposed to mount the internal breather valve (21) to the spring brake piston assembly (9) in direct fluid communication between the spring chamber (12) and the parking pressure chamber (14).

A spring brake actuator (10) for a vehicle (62). The spring brake actuator (10) comprises a piston (12) and a tube (14). The tube (14) is fixed to the piston (12). The tube (14) is fixed to the piston (12) by a laser welded connection (16).

A temperature sensing unit (1), designed for a vehicle brake, comprises a parallel circuit having a first branch (2) with a first thermal switch (SW1) and a second branch (4) with a second thermal switch (SW2). The first thermal switch (SW1) is designed to switch at a first switching temperature indicating a first condition of the vehicle brake, and the second thermal switch (SW2) is designed to switch at a second switching temperature higher than the first switching temperature for indicating a second condition of the vehicle brake.

Spring brake actuator (250) for a pneumatic braking system (210) of a vehicle (200a), in particular utility vehicle (200b), wherein the spring brake actuator (250) comprises: a housing (50) having a circumferential portion (52) and a housing base (51) with an opening (53); a brake release bolt (111), wherein the brake release bolt (111) projects through the opening (53); and a boss element (113a) for cooperating with the brake release bolt (111); wherein the brake release bolt (111) comprises a first groove (120) and the boss element (113a) comprises a second groove (125); the spring brake actuator (250) comprises a retaining member (130); wherein the retaining member (130) is arranged within the first groove (120) and within the second groove (125).

Gear box actuator (100) for an automated manual transmission system (250) of a vehicle (200a), in particular utility vehicle (200b); wherein the gear box actuator (100) comprises a body part (105); the gear box actuator (100) comprises a shift fork (120) to actuate a gear box (260) of the automated manual transmission system (250) by pivoting the shift fork (120); the body part (105) comprises a pivot section (130) for providing a fixed pivot point (131) for pivotally mounting the shift fork (120); the shift fork (120) comprises a bearing surface (125); and the bearing surface (125) of the shift fork (120) and the pivot section (130) of the body part (105) are adapted to provide a sliding contact between each other for pivoting the shift fork (120) relative to the body part (105).

The invention relates to a brake release mechanism (24) for a spring brake actuator (2), in particular a parking or emergency spring brake actuator (2) for use in a commercial vehicle (1), wherein the spring brake actuator comprises a spring brake piston assembly (8) and an actuator power spring (6) configured to push the spring brake piston assembly (8) from a retracted position towards an extended position, said brake release mechanism (24) comprising a brake release bolt (30) that is configured to be rotatably mounted to the spring brake actuator (2), having a first bolt portion (31) that is configured to extend inside of the spring brake actuator, and a second bolt portion (32) that is configured to extend outside of the spring brake actuator (2), said first bolt portion (31) comprising a threaded portion (34), and the second bolt portion (32) comprising an operating section for operating the brake release bolt (30) when mounted to the spring brake actuator (2), and a running nut (12) engaging the threaded portion (34), said running nut (12) being configured to axially travel along the threaded portion (34) in order to move a spring brake piston assembly (8) against the actuator power spring (6). It is proposed that the operating section is a tool interface (14) that is integrally formed on the brake release bolt (30).

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …