Copi, Joachim

The invention refers to a twin chamber air dryer (1) for a pneumatic system of a commercial vehicle, said twin chamber air dryer (1) comprising:a casing (14),a supply inlet (101) to be connected to a compressor,a spool valve comprising a first spool valve outlet (17) to be connected to a first cartridge inlet of a first cartridge and a second spool valve outlet (18) to be connected to a second cartridge inlet of a second cartridge,wherein a first air passage (32) is connecting said supply inlet (101) to said first spool valve outlet (17), and a second air passage (33) is connecting said supply inlet (101) to said second spool valve outlet (18),wherein in a basic condition, said first air passage (32) is open and said second air passage (33) is closed, to form a first supply mode through said first cartridge, and wherein in an actuated condition said second air passage (33) is open and said first air passage (32) is closed, to form a second supply mode through said second cartridge,wherein in a high inlet pressure situation with an inlet pressure at said supply inlet (101) above a pressure threshold, said supply inlet (101) is connected to said first spool valve outlet (17) and to said second spool valve outlet (18).

The invention is directed to a housing section (100) of a housing assembly (200) for housing a printed circuit board based electrical circuit (202), which comprises a support structure (108) configured for receiving an elastic element (110) to be placed between the support structure (108) and the printed circuit board based electrical circuit (202). The support structure comprises, a distal end section (112) in a first direction (z), a plurality of protruding sections (114) that extend in a perpendicular second direction (x), wherein pairs of neighboring protruding sections (114) are linked in a perpendicular third direction (y) by a corresponding linking section (116) having a shorter extension in the third direction (x) than the protruding sections (114) and forming grooves (118) in the support structure (108) that extend in the first direction (z) from the distal end section (112).

The invention relates to an air dryer (1) for a pneumatic system (2) of a commercial vehicle (3), comprisingan dryer inlet (1a) to be connected to a compressor (4) for receiving compressed air (9) in a supply mode,an dryer cartridge (16), an overflow charging valve (15), a regeneration valve (22) for connecting said dryer cartridge inlet (16a) to said discharge port (1e) in a regeneration mode,and a regeneration path (26) extending between said regeneration port (1c) and said dryer cartridge outlet (16b),wherein a pressure release valve device (12) is provided between said dryer inlet (1a) and said overflow charging valve (15), said pressure release valve device (12) comprising a first position for passing compressed air (9) from a dryer inlet (1a) to said overflow charging valve (15) in said supply mode (I) and a second position for connecting said dryer inlet (1a) to a discharge port (1e) in a feeding line venting mode.

A silencer housing component (10) for a pneumatic system for a vehicle comprises an outer wall (20) and an end wall (26). The outer wall (20) extends circumferentially around a center axis (13). A plurality (23) of gas outlet passages are formed through the outer wall (20). The end wall (26) comprises a gas directing structure (30). The gas directing structure (30) forms at least one gas flow channel (31, 32) that curves around the center axis (13).

A silencer (50) for a vehicle comprises a noise dampening mesh material (40) and a silencer housing component (10) forming a receptacle for the noise dampening mesh material (40). The silencer housing component (10) comprises an outer wall (20) and an end wall (26). The outer wall (20) extends circumferentially around a center axis (13) of the silencer housing component (10). The end wall (26) forms a concavity (29). A retarding structure (30) comprising at least one wall (31, 32, 33, 34) is arranged in the concavity (29) and projects from the end wall (26). The retarding structure (30) is configured to reduce a rate of gas egress through gas outlet passages of the silencer (50).

The invention relates to an exhaust device (1) of a pressure supply for a vehicle (V), in particular a solenoid modulator ABS-valve (2), comprising a body (10) having an exhaust line (120) terminating in an exhaust port (130) for venting the exhaust air flow (FE), and a silencer system (20) arranged in the exhaust line (130) for damping the exhaust air flow (FE). The silencer system (20) includes a silencer device (210) defining an exhaust chamber (211) extending upstream with respect to the exhaust direction (E), and a sealing washer (220) arranged adjacent to the silencer device (210). The invention suggests that the silencer device (210) has a slice-kind base portion (212) and a rim portion (213) projecting therefrom in exhaust chamber (211), wherein the rim portion (213) is adapted to divide the flow chamber (211) into at least a first chamber region (215.1) having a first plurality of flow ports (214.1) and the second chamber region (215.2) having a second plurality of flow ports (214.2), each defining a flow passage (216.1, 216.2) from a distal entrance portion (217) of the rim portion (213) to the respective one of the first or second plurality of flow ports (214.1, 214.2).

The invention relates to a vehicular air dryer (10), comprising a dryer inlet (11) configured to receive air from a compressor discharge line (31), a dryer outlet (12) configured to supply dried air, a dryer exhaust (18), a desiccant cartridge (13a) connected or connectable to the dryer inlet (11) via an inlet line (14a) and to the dryer outlet (12) via an outlet line (15a), the desiccant cartridge (13a) being configured to be selectively operated in a drying mode and in a regeneration mode, wherein in the drying mode, the desiccant cartridge (13a) is configured to receive and dry the air from the dryer inlet (11) and to provide the dried air for outputting via the dryer outlet (12), and in the regeneration mode, the desiccant cartridge (13a) is configured to receive and humidify regeneration air from the outlet line (15a) and/or from a regeneration port (16a, 16b) via a regeneration line (17a, 17b, 17c) and to vent humidified regeneration air via the dryer exhaust (18), wherein the vehicular air dryer (10) comprises at least two regeneration lines (17a, 17b, 17c) and wherein the vehicular air dryer (10) is configured to provide a variable amount of regeneration air to the desiccant cartridge (13a) operated in the regeneration mode by selectively providing the regeneration air to the desiccant cartridge (13a) via at least one of the regeneration lines (17a, 17b, 17c).

The invention relates to a communication device (10) for automotive communication, comprising a microcontroller (12) for generating a microcontroller output signal (14) and receiving a microcontroller input signal (16. The microcontroller output signal and the microcontroller input signal respectively indicate a voltage (18a, 18b) with respect to a first ground potential (20). Further the, communication device (10) comprises a bus transceiver (22) for generating a bus signal (24) depending on a transceiver input signal (26) which depends on the microcontroller output signal (14) and for observing the bus signal (24) for providing a transceiver output signal (28) depending on the bus signal (24). The transceiver input signal (26) and the transceiver output signal (28) respectively indicate a voltage (30a, 30b) to a second ground potential (32). Moreover the communication device (10) comprises a shifting module (34) for detecting a potential difference (36) between the first ground potential (20) and the second ground potential (32), for shifting a potential (38) of the microcontroller output signal depending on the detected potential difference (36) to output the transceiver input signal (26) and for shifting a potential (40) of the transceiver output signal (28) depending on the detected potential difference (36) to output the microcontroller input signal (16).The invention further relates to a network System (90), a vehicle comprising a communication device (10) and a method (110) for automotive communication in a vehicle.

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