An apparatus includes a first electrical component, a second electrical component, and a brake line. At least part of an electrical connection between the first electrical component and the second electrical component is defined by the brake line. The electrical connection may be a secondary electrical connection for rerouting an electrical path. The brake line may include first and second tubular conductive structures for defining first and second electrical connections. A repeater may be used to retransmit a data signal along the brake line. A nonconductive layer may be disposed on a tubular conductive structure of the brake line. A controller may switch operation of the brake line between an electrical power transmission mode and a data signal transmission mode. A controller may be operable determine a connected state or a disconnected state of the brake using the electrical connection.

the present invention involves several approaches for coupling the cover of the angle cock to the main body of the angle cock to avoid the need for tools to effect a repair of the angle cock. The angle cock has a main body with a brake pipe inlet, a brake pipe outline, and a mouth positioned between the brake pipe inlet and the brake pipe outlet. A ball valve positioned in the main body to selectively permit communication between the brake pipe inlet and the brake pipe outlet and has a stem extending out of the mouth. A cover is positioned in covering relation to the mouth to seal the mouth and the stem. The cover and mouth include corresponding structure to ensure a tight seal and to interlock the cover and main body together in a way that can be unlocked without tools.

Provided are a connection structure and system of an integrated brake device for a rail vehicle. The connection structure of an integrated brake device for a rail vehicle includes a brake valve, a dust collector, an intermediate body, an air cylinder, a support assembly and a connection assembly. The intermediate body is of a plate-type structure, the brake valve and the dust collector are mounted on one side of the intermediate body, the air cylinder is connected to the intermediate body by means of the connection assembly, the air cylinder is mounted on the other side of the intermediate body, and the support assembly is located between the air cylinder and the intermediate body. The connection structure of an integrated brake device for a rail vehicle has a simple and compact structure and saves on space. Brake components are integrated on the intermediate body, and the connections between the brake components and between the whole integrated brake device and an external mounting base are all secure and reliable.

Provided are a connection structure and system of an integrated brake device for a rail vehicle. The connection structure of an integrated brake device for a rail vehicle includes a brake valve, a dust collector, an intermediate body, an air cylinder, a support assembly and a connection assembly. The intermediate body is of a plate-type structure, the brake valve and the dust collector are mounted on one side of the intermediate body, the air cylinder is connected to the intermediate body by means of the connection assembly, the air cylinder is mounted on the other side of the intermediate body, and the support assembly is located between the air cylinder and the intermediate body. The connection structure of an integrated brake device for a rail vehicle has a simple and compact structure and saves on space. Brake components are integrated on the intermediate body, and the connections between the brake components and between the whole integrated brake device and an external mounting base are all secure and reliable.

A quick connection device that can connect the air brakes of a semi-truck to the airbrakes of a trailer is disclosed. A coupler plug and coupler body connect together. A securement housing is placed over the coupler connection, to shield the brake connection from road debris and prevent the connection from separating during normal use.

A pressure regulating valve for an air supply system of a utility vehicle includes a housing having at least one compressed air connection communicating with at least one first pressure regulating chamber. The pressure regulating chamber has a variable volume delimited by at least one wall section of the housing and a first active pneumatic surface of a pressure regulating piston. In first position of the pressure regulating piston a first regulating channel is not connected to the pressure regulating chamber, and a second position of the pressure regulating piston is connected to the pressure regulating chamber. The pressure regulating piston includes a pin which rises out of the first active pneumatic surface of the pressure regulating piston. A second active pneumatic surface is located on an end of the pin. The pin is movably guided through the wall section in a pneumatically sealed manner.

A pressure regulating valve for an air supply system of a utility vehicle includes a housing having at least one compressed air connection communicating with at least one first pressure regulating chamber. The pressure regulating chamber has a variable volume delimited by at least one wall section of the housing and a first active pneumatic surface of a pressure regulating piston. In first position of the pressure regulating piston a first regulating channel is not connected to the pressure regulating chamber, and a second position of the pressure regulating piston is connected to the pressure regulating chamber. The pressure regulating piston includes a pin which rises out of the first active pneumatic surface of the pressure regulating piston. A second active pneumatic surface is located on an end of the pin. The pin is movably guided through the wall section in a pneumatically sealed manner.

A blow-off metering valve for a hydraulic control unit assembly of a brake system including a valve seat. The valve seat includes a wall that extends about an axis between a first end and a second end. The wall defines a passage that extends axially between the first and second ends for transmitting a fluid through the valve seat. An annular flange extends axially from the second end of the wall toward the first end of the wall and tapers radially inwardly. A blocking member is axially movable toward and away from the annular flange for selectively creating a seal at the passage. A biasing element biases the blocking member toward the annular flange. The annular flange terminates at a distal end that is radially spaced from the wall. The annular flange defines at least one flow channel that extends axially for allowing fluid to bypass the blocking member.

A blow-off metering valve for a hydraulic control unit assembly of a brake system including a valve seat. The valve seat includes a wall that extends about an axis between a first end and a second end. The wall defines a passage that extends axially between the first and second ends for transmitting a fluid through the valve seat. An annular flange extends axially from the second end of the wall toward the first end of the wall and tapers radially inwardly. A blocking member is axially movable toward and away from the annular flange for selectively creating a seal at the passage. A biasing element biases the blocking member toward the annular flange. The annular flange terminates at a distal end that is radially spaced from the wall. The annular flange defines at least one flow channel that extends axially for allowing fluid to bypass the blocking member.

The present invention discloses a rubber composition, a processing method thereof, and also a brake fluid-resistant product using the rubber composition and a production method thereof. The rubber composition comprises, in parts by weight, 100 parts of a rubber matrix; 1.5-8 parts of a crosslinking agent 40-140 parts of a reinforcing filler; and 0-40 parts of a plasticizer, wherein the rubber matrix comprises, based on 100 parts by weight of the rubber matrix, a branched polyethylene with a content represented as A, in which 0<A100 parts; an EPM with a content represented as B, in which 0B<100 parts; and an EPDM with a content represented as C, in which 0C<100 parts. The rubber composition is useful in the production of brake fluid-resistant brake rubber hose and brake rubber diaphragm. The beneficial effect is that since the rubber composition comprises the branched polyethylene, the tear strength of the rubber compound is improved, thereby reducing the probability of tearing of the product during the production process and improving the overall processing performance.