A 3-way solenoid valve, a vehicle brake system including the 3-way solenoid valve, and a controlling method for the same are disclosed. The present disclosure in at least one embodiment provides a brake system for a vehicle, including one or more wheel cylinders configured to apply braking pressure to each of wheels of a vehicle by using hydraulic pressure, one or more of the 3-way solenoid valve configured to increase or decrease the hydraulic pressure supplied to the one or more wheel cylinders, and a braking device configured to supply the hydraulic pressure to the one or more wheel cylinders by using a stepping force applied to a brake pedal or driving of a hydraulic pump.

A filtering device includes a tubular outer body with an intermediate chamber containing a pair of cup-shaped valve elements mounted floating and slidable coaxially with opposing cavities in which an axially compressed spring is housed. The first cup-shaped valve element is arranged coaxially outside the second cup-shaped valve element and has a base with a central through opening and a tubular portion with a series of ribs. The second cup-shaped valve element has a perforated base abutting against a perforated plug fixed to one side of the cavity passing towards the master cylinder. The perforated plug forms a through seat that slidably houses an appendage of the second cup-shaped valve element. Passages are formed around the plug that establish fluid communication between the intermediate chamber and a passage to the master cylinder.

A filtering device includes a tubular outer body with an intermediate chamber containing a pair of cup-shaped valve elements mounted floating and slidable coaxially with opposing cavities in which an axially compressed spring is housed. The first cup-shaped valve element is arranged coaxially outside the second cup-shaped valve element and has a base with a central through opening and a tubular portion with a series of ribs. The second cup-shaped valve element has a perforated base abutting against a perforated plug fixed to one side of the cavity passing towards the master cylinder. The perforated plug forms a through seat that slidably houses an appendage of the second cup-shaped valve element. Passages are formed around the plug which that establish fluid communication between the intermediate chamber and a passage to the master cylinder.

A valve assembly, includes a valve body having an inlet portion, an outlet portion, and a constriction portion; a shaft positioned within the valve body and extending along a longitudinal axis of the valve body; a cone provided within the inlet portion and configured to move along the shaft; a spring configured to bias the cone away from the constriction and positioned between a first piston fixed to the cone and a second piston fixed to the shaft; and an adjustable spacer positioned between a fixed position on the shaft and the second piston. The adjustable spacer is adjustable in length to change an effective length of the adjustable spacer and change a position of the second piston on the shaft.

A valve for controlling fluid flows, including a valve housing in which a control bore extends along a bore axis, in which a first valve member is moveably accommodated along the bore axis between a first open position and a first closed position for a first fluid channel and in which a second valve member is moveably accommodated along the bore axis between a second open position and a second closed position for a second fluid channel and further including a first drive assigned to the first valve member and a second drive assigned to the second valve member, in which a helical compression spring extends along the bore axis from the first valve member to the second valve member and has a central spring section with a central coil pitch which is at least virtually identical to a wire diameter of the compression spring.

The present disclosure provides a pneumatic valve for vehicle. The pneumatic valve includes: a valve housing having a flow passage through which air flows; a core fixed to the center of the flow passage; a plunger that is disposed to face an end of the core and moves along the flow passage; and a damper made of an elastic material that is disposed at one end of the plunger facing the end of the core, and comes into contact with the end of the core by movement of the plunger.

A valve assembly, includes a valve body having an inlet portion, an outlet portion, and a constriction portion; a shaft positioned within the valve body and extending along a longitudinal axis of the valve body; a cone provided within the inlet portion and configured to move along the shaft; a spring configured to bias the cone away from the constriction and positioned between a first piston fixed to the cone and a second piston fixed to the shaft; and an adjustable spacer positioned between a fixed position on the shaft and the second piston. The adjustable spacer is adjustable in length to change an effective length of the adjustable spacer and change a position of the second piston on the shaft.

The invention relates to a shut-off valve comprising: a housing which has an inlet opening, an outlet opening and a control opening, wherein the housing defines an inner space extending along a longitudinal axis and has a partition which divides the inner space into an outlet chamber and a control chamber and has a guide hole which extends between the outlet chamber and the control chamber; an electrical coil which is accommodated in the partition and surrounds the guide hole; a servo valve needle which is arranged in the control chamber, is preloaded along the longitudinal axis into a closed position in which it seals the control opening, and can be moved, by means of a magnetic field which can be generated by the coil, into an open position in which it exposes the control opening and abuts the partition, wherein the servo valve needle has a connecting channel which connects the control chamber to the guide hole in the open position of the servo valve needle; and a main valve needle which is movably guided in the guide hole along the longitudinal axis, is preloaded along the longitudinal axis into a closed position in which it seals the outlet opening, and, when the servo valve needle is arranged in its open position, can be moved, by means of the magnetic field which can be generated by the coil, into an open position in which it exposes the outlet opening.

A solenoid valve including a first connection, a second connection, an armature and a coil for moving the armature. The solenoid valve comprises: a first closure part which is coupled to the armature and opens or closes the first connection as a result of a movement of the armature; a second closure part which is coupled to the armature and opens or closes the second connection as a result of the movement of the armature; and a damping spring which is arranged between the first closure part and the second closure part and is configured to dampen the closing process of the first connection and/or the second connection.