A pressure measurement device has: a first chamber coupled to at least one fluid utilization unit, a second chamber coupled to a vacuum source, a seat with a passage for the fluid between the first and the second chamber, a plug for allowing or blocking the fluid flow through the passage, a retaining member for retaining the plug against the seat, a pressure sensor, and a measurement cavity coupled to the first chamber. The retaining member has a channel arranged to couple the first chamber and the measurement cavity.

Engine systems have an air induction system, a turbocharger in fluid communication with an intake manifold, an evacuator defining a Venturi gap with a suction port in fluid communication therewith, a relief valve enclosing a piston and defining an inlet and an outlet in selective fluid communication with one another, and a storage tank of high pressure air in fluid communication with the evacuator. The relief valve has a valve element connected to the piston, and the piston divides the housing into a pressurized chamber in fluid communication with the suction port of the evacuator and a bypass portion in fluid communication with the inlet, which is in fluid communication with the compressed air from the turbocharger, and the outlet, which is in fluid communication with the air induction system or atmosphere. A discharge cone of the evacuator is in fluid communication with atmosphere or the air induction system.

Engine systems have an air induction system, a turbocharger in fluid communication with an intake manifold, an evacuator defining a Venturi gap with a suction port in fluid communication therewith, a relief valve enclosing a piston and defining an inlet and an outlet in selective fluid communication with one another, and a storage tank of high pressure air in fluid communication with the evacuator. The relief valve has a valve element connected to the piston, and the piston divides the housing into a pressurized chamber in fluid communication with the suction port of the evacuator and a bypass portion in fluid communication with the inlet, which is in fluid communication with the compressed air from the turbocharger, and the outlet, which is in fluid communication with the air induction system or atmosphere. A discharge cone of the evacuator is in fluid communication with atmosphere or the air induction system.

An attachment assembly for a fluid line on a vehicle may include a spigot operably coupled to the fluid line such that automotive fluid may flow from the fluid line through the spigot, a coupling member which may operably couple the fluid line to the spigot, and a locking member which may be operably coupled to the coupling member to secure the fluid line to a chassis of the vehicle via insertion of the locking member into a bore disposed at the chassis of the vehicle. The locking member may be installed on the vehicle by hand without the use of tools.

A vehicle braking system includes a service brake and/or a parking brake, a network of pneumatic pipes provided for supplying, via at least one pneumatic pressure agent, the service brake and/or the parking brake to place the brake(s) in an engaged state or a disengaged state, and a display device for displaying the engaged state and/or the disengaged state of the service brake and/or of the parking brake. The display device includes at least one pneumatic intake connected to the service brake and/or to the parking brake via the network of pneumatic pipes, at least one electrical input, at least one electro-pneumatic triggering member connected to the pneumatic intake and to the electrical input, and at least one electronic display member connected to the electro-pneumatic triggering member and controlled to display the engaged state or the disengaged state of the service brake and/or of the parking brake.

A coiled filter for use in a hydraulic braking system of a vehicle comprises a coiled mesh-like structure which is configured to be installed around a first surface of a cylindrical hydraulic component. The coiled filter is configured to have an internal spring force as a retention force which couples the filter to the first surface of the cylindrical hydraulic component. The filter may be pre-coiled prior to installation by plastically deforming to a diameter that is smaller than the diameter of the cylindrical hydraulic component on which the filter is installed.

A coiled filter for use in a hydraulic braking system of a vehicle comprises a coiled mesh-like structure which is configured to be installed around a first surface of a cylindrical hydraulic component. The coiled filter is configured to have an internal spring force as a retention force which couples the filter to the first surface of the cylindrical hydraulic component. The filter may be pre-coiled prior to installation by plastically deforming to a diameter that is smaller than the diameter of the cylindrical hydraulic component on which the filter is installed.

According to at least one aspect, the present disclosure provides a braking device for a vehicle, the braking device comprising: an electronic control unit which controls a motor and a traction control valve and calculates a required pressure for braking a vehicle and a pressure in a main line, wherein the electronic control unit increases the pressure in the main line by applying a positive current to the motor when the required pressure is greater than the pressure in the main line and decreases the pressure in the main line by applying a negative current to the motor and opening the traction control valve when the required pressure is lower than or equal to the pressure in the main line.

According to at least one aspect, the present disclosure provides a braking device for a vehicle, the braking device comprising: an electronic control unit which controls a motor and a traction control valve and calculates a required pressure for braking a vehicle and a pressure in a main line, wherein the electronic control unit increases the pressure in the main line by applying a positive current to the motor when the required pressure is greater than the pressure in the main line and decreases the pressure in the main line by applying a negative current to the motor and opening the traction control valve when the required pressure is lower than or equal to the pressure in the main line.

A brake system for a vehicle having at least two axles. The brake system includes a first axle unit which can be mounted or is mounted on a first axle of the vehicle and has a motorized brake pressure build-up device, a first wheel brake cylinder and a second wheel brake cylinder, and a second axle unit which can be mounted or is mounted on a second axle of the vehicle and is formed separately hydraulically from the first axle unit. The first axle unit includes a first outlet valve assigned to the first wheel brake cylinder and a second outlet valve assigned to the second wheel brake cylinder. The brake fluid can be let out of the first wheel brake cylinder via the first outlet valve and out of the second wheel brake cylinder via the second outlet valve into the connected brake fluid reservoir.