A braking circuit including at least an auxiliary right valve (200) and an auxiliary left valve (300) suitable to allow braking on both sides, right and left of a vehicle, when this is required, but allowing to apply a pressure braking only on one of the two sides, right or left, when this is required to provide a steering function, characterized in that the circuit further comprises a master valve (400) having two positions: a first position when the vehicle has a velocity under a threshold wherein separate and selective right or left braking is authorized and a second position when the vehicle has a velocity above said threshold wherein said master valve (400) connects both a right braking line (204, 1205) and a left braking line (304, 1305) to an output braking line (110) so that if a braking is requested both right braking line (204, 1204) and left braking line (304, 1305) are under pressure and selective right or left braking is forbidden.

A braking circuit including at least an auxiliary right valve (200) and an auxiliary left valve (300) suitable to allow braking on both sides, right and left of a vehicle, when this is required, but allowing to apply a pressure braking only on one of the two sides, right or left, when this is required to provide a steering function, characterized in that the circuit further comprises a master valve (400) having two positions: a first position when the vehicle has a velocity under a threshold wherein separate and selective right or left braking is authorized and a second position when the vehicle has a velocity above said threshold wherein said master valve (400) connects both a right braking line (204, 1205) and a left braking line (304, 1305) to an output braking line (110) so that if a braking is requested both right braking line (204, 1204) and left braking line (304, 1305) are under pressure and selective right or left braking is forbidden.

An object of the present invention is to provide an emergency braking device for an automobile that is capable of preventing a safety-related accident by applying a braking force even when a brake pipe or the like is ruptured. To this end, the emergency braking device for an automobile of the present invention is an emergency braking device for an automobile that is added to an automobile that is braked by a pressure of main brake fluid transferred through a brake pipe when a brake pedal is stepped on and that is instantaneously and automatically switched to an emergency braking device when braking is not performed due to the rupture of the existing (main) brake pipe, or the like. The emergency braking device for an automobile includes a valve unit, an emergency pipe; a pressing part; and a pressure source.

An object of the present invention is to provide an emergency braking device for an automobile that is capable of preventing a safety-related accident by applying a braking force even when a brake pipe or the like is ruptured. To this end, the emergency braking device for an automobile of the present invention is an emergency braking device for an automobile that is added to an automobile that is braked by a pressure of main brake fluid transferred through a brake pipe when a brake pedal is stepped on and that is instantaneously and automatically switched to an emergency braking device when braking is not performed due to the rupture of the existing (main) brake pipe, or the like. The emergency braking device for an automobile includes a valve unit, an emergency pipe; a pressing part; and a pressure source.

In a throttle disk of a dynamic throttle of a hydraulic assembly of a vehicle brake system, with at least one disk surface which is formed by a rigid material, a layer of elastic material is at least partially formed on the disk surface.

In a throttle disk of a dynamic throttle of a hydraulic assembly of a vehicle brake system, with at least one disk surface which is formed by a rigid material, a layer of elastic material is at least partially formed on the disk surface.

A hydraulic fluid actuator has a housing and a seal member. The housing has a hydraulic hose port that is configured to receive a hydraulic hose. The seal member seals the hydraulic hose port. The seal member includes a frangible section configured to rupture upon attachment of the hydraulic hose into the hydraulic hose port with the seal member remaining between the hydraulic hose and the hydraulic hose port after attachment.

A swivel coupling assembly includes a first annular member having at least one annular barb, a shoulder and at least one annular groove containing a seal. There is a first bearing surface and a second bearing surface either side of the annular groove. The first and second bearing surfaces have a width equal to or greater than a width of the annular groove. There is a second annular member having an inner surface defining a bore configured to receive the first annular member. When joined, the shoulder of the first annular member frictionally engages the bore of the second annular, thereby allowing rotation. The seal engages with and seals the bore at a location between the ends of the second member. and spaced by a distance of at least the width of the first and second bearing surfaces from the shoulder and the second opening, respectively.

Check valves are disclosed that have a housing defining an internal cavity having a first port and a second port both in fluid communication therewith, and having a first seat defined by a first elastomeric V-ring seal and a second seat. and a check valve plate within the internal cavity that is translatable, in response to pressure differentials, between a closed position against the first seat and an open position against the second seat within the internal cavity of the housing. The first elastomeric V-ring seal includes a body having an interference fit to an annular channel defined by the housing and a lip extending from the body in a direction that defines a generally V-shaped void, viewed in cross-section, opening in a direction away from and generally perpendicular to the flow through the elastomeric V-ring seal into the internal cavity.

A vehicle is provided which comprises a plurality of ground engaging members and a frame supported by the plurality of ground engaging members. An engine is supported by the frame, the engine comprising an engine intake that includes an engine intake inlet. A brake assembly comprises a brake output member coupled to at least one ground engaging member of the plurality of ground engaging members, a master cylinder coupled to the brake output member, and a brake booster operably coupled to the master cylinder. Further, the brake booster comprising a body defining a fresh air intake, a conduit extending outwardly from the fresh air intake, and an inlet to the conduit positioned vertically above the brake booster.