摘要:
An air suspension system for an automotive vehicle wherein compressed air infused into an air spring or discharged therefrom can be adjusted by a valve body and valve operating means equipped within the air spring. The valve operating means cooperates with the axle supporter that is bumped or rebounded by load transmitted from rough terrain or from carrying weight of the vehicle while the vehicle is in motion.
摘要:
The invention relates to a level control arrangement for a vehicle having air springs (8) via which the chassis of the vehicle is suspended relative to at least one vehicle axle. A pneumatically-controllable directional-control valve (18) is arranged between the compressor (4) and the air dryer (6) and the directional-control valve (18) has two control inputs (20 and 22). In the base state of the level control arrangement, the compressor (4) is connected via the pneumatically-controllable directional-control valve (18) to the air dryer (6). When the control line (26) of the first control input (20) is connected via a controllable directional-control valve (30) to the atmosphere, the pneumatically-controllable directional-control valve 18 transfers into the other switching state and the air spring (8) can be vented via the air dryer (6). The pneumatically-controllable directional-control valve (18) permits large flow cross sections to be switched so that the air dryer (6) can be rapidly vented when venting the air spring (8) and a regeneration of the air dryer (6) is then possible in an especially advantageous manner.
摘要:
A solenoid valve assembly comprising solenoid windings positioned around a central core and a movable valve element arranged on the axis of the windings, the windings being supported by a spindle having a boss adapted to be received in an opening formed in a body at one end of the spindle and a fluid fitting adapted to establish a connection with a pressure line at the opposite end of the spindle, and sealant structure for sealing the interior of the spindle from external contaminants including an encapsulation material surrounding the spindle and the windings.
摘要:
A check valve for an air chamber of an air suspension mechanism in which a shock absorber is surrounded by a housing and an elastic body to form the air chamber, includes an air supply tube, a connector welded airtightly to the housing and having on an outer peripheral surface a first thread and on an inner peripheral surface a second thread respectively, a valve body formed of a rubber to converge inward of the housing and having in an inner end a slit, a nut screwed onto the first thread of the connector to fix the valve body to the connector and a mounting nut screwed into the second thread of the connector to removably connect the air supply tube to the connector. The slit of the valve body is expanded by the air supply tube after a thread of the mounting nut is engaged with the second thread of the connector in one or a few screw threads.
摘要:
A suspension system configured to exhibit low variance in vehicle ride frequency over a large range of vehicle loads. The suspension system includes a strut having a cylinder and a piston configured to reciprocate in the cylinder. The suspension system also includes a vessel coupled to the strut, and a valve in an interior chamber of the vessel. The valve divides the interior chamber into a first liquid volume and a second liquid volume. The suspension system also includes a hydraulic accumulator having a volume and a liquid volume. The suspension system further includes a compressible liquid in the cylinder, the first liquid volume in the vessel, and the second liquid volume in the vessel, and a spring element in the volume of the hydraulic accumulator.
摘要:
An air management system for a vehicle. The air management system includes at least one air spring. A compressor is provided for filling the air spring. A central air line is fluidly connected to the air spring and the compressor. At least one spring air line extends between the central air line and the air spring. At least one suspension valve is disposed along the spring air line. At least one auxiliary air line extends between the spring air line and the central air line. At least one high flow exhaust valve is disposed along the auxiliary air line. At least one isolation check valve is disposed in series with the high flow exhaust along the spring air line. The isolation check valve allows air to pass through therethrough from the air spring to the central air line while preventing air from passing therethrough from the central air line to the air spring.
摘要:
A pneumatic installation, especially an air suspension installation for a vehicle, operates in conjunction with a compressed air supply installation and comprises: a gallery line, at least one air spring having a pressure chamber, which can be pneumatically connected to the gallery line, an accumulator for compressed air, which is pneumatically connectable to the gallery line, and a compressed air port for pneumatic connection of the pneumatic installation and the compressed air supply installation. The pneumatic connection comprises a controllable shut-off valve system, which is formed by at least one directional valve and has first, second and third ports, the accumulator being pneumatically connected to the first port, the compressed air port being pneumatically connected to the second port, and the gallery line being pneumatically connected to the third port, the second port being switchable to a closed state in which the pneumatic connection is completely closed in both directions.
摘要:
The invention relates to a pneumatic installation (901, 902, 903, 904, 905), especially in the form of an air suspension installation for a vehicle, which is adapted for operation in conjunction with a compressed air supply installation (11, 21, 31, 41) and comprises the following: a collecting line in the form of a gallery line (95), at least one air spring having a pressure chamber which can be pneumatically connected to the gallery line (95), an accumulator (92) for compressed air, which is pneumatically connectable to the gallery line (95), and a compressed air port (2) for a pneumatic connection of the pneumatic installation (901, 902, 903, 904, 905) and the compressed air supply installation (11, 21, 31, 41). According to the invention, the pneumatic connection comprises a controllable shut-off valve system (700, 800, 800′, 900) which is formed by at least one directional valve and has a first, a second and a third port (X, Y, Z), the accumulator (92) being pneumatically connected to the first port (X), the compressed air port (2) being pneumatically connected to the second port (Y), and the gallery line (95) being pneumatically connected to the third port (Z), the second port (Y) being switchable to a closed state in which the pneumatic connection is completely closed in both directions.
摘要:
A method and apparatus for adjusting the sag setting of a vehicle suspension are disclosed. An integrated damper/gas spring shock absorber includes a bleed port located at a position on a gas spring cylinder corresponding to a desired sag setting. The gas spring may be over pressurized to a pressure above the expected operating pressure of the gas spring. The vehicle may then be loaded with the normal operating load, partially compressing the shock absorber. Opening the bleed port allows gas to vent from the gas spring, further compressing the shock absorber until a piston in the gas spring closes the bleed port from the inner surface of the gas spring cylinder. A sleeve may be inserted over the gas spring cylinder, the sleeve including one or more sealing elements that seal the bleed port from the outer surface of the gas spring cylinder during normal operation.
摘要:
A valve system controls which air bags on a tractor trailer are in fluid communication with a pressurized air supply source. If one of the air bags develops a leak, an air bag may be taken out of fluid communication with the remaining air bags and pressurized air source. A pressure gauge monitors the air pressure within the valve system and air bags. A dump valve allows the air pressure within the system to be decreased.