1422results about "Gas based dampers" patented technology

The invention discloses a dust cover and an air spring. The dust cover comprises a guide cylinder, a leather bag, a dust cover body, an exhaust groove, a hoop, a thickened wall, an upper top seat, an edge, a piston, a mounting part and a groove, the exhaust of the dust cover is designed at the lower part, so that the exhaust of the dust cover is smoother when the air spring moves; dust is prevented from entering and discharging, and the service life of the leather bag is prolonged; and due to the flexibility of the rubber, the risk of howling caused by unsmooth exhaust during movement of the air spring is reduced, and the NVH effect is improved.

The rigidity-adjustable air spring comprises a seat body and a leather bag, the seat body comprises a first connecting piece and a second connecting piece, and an air spring structure with an air bag cavity in the middle is defined by the first connecting piece, the second connecting piece and the leather bag; a partition plate is arranged in the middle of the air bag cavity and divides the air bag cavity into an upper air bag cavity and a lower adjusting cavity. At least two capacity increasing cavities are arranged in the lower adjusting cavity, at least one capacity increasing cavity is communicated with the upper air bag cavity, and the internal volume of the capacity increasing cavity can be adjusted; the at least one capacity increasing cavity and the upper air bag cavity can be controlled to be communicated or separated. The internal volume of the air spring can be adjusted and changed, and the rigidity of the air spring can be changed by adjusting the internal volume.

A fluid damper is provided including a cylinder filled with a damping fluid, a piston base body shiftably guided in the cylinder along a stroke axis, and a valve disk spaced apart from a shell wall of the cylinder. The piston base body divides an inner space of the cylinder into a front space and a rear space along the stroke axis. In the piston base body, there is at least one channel connecting the front space to the rear space in a fluid-conducting manner. The valve disk is shiftably guided along the stroke axis between an opening position unblocking the at least one channel and a closing position closing the at least one channel. The valve disk has a central area extending radially outward from the stroke axis, the central area being free of apertures.

Air springs for bicycle components are described herein. An example air spring includes a tube, a first sealhead coupled to the tube, a second sealhead coupled to the tube such that a sealed pressure chamber is formed in the tube between the first and second sealheads, and a seal coupled to the second sealhead. The second sealhead and the tube are coupled along an axial interface locking length. The tube has a vent port. The seal is spaced from the vent port by a port seal gap that is less than the axial interface locking length such that as the second sealhead is being decoupled from the tube, the seal loses sealing contact with the inner surface to enable at least a portion of the sealed pressure chamber to be equalized with atmospheric air before the second sealhead is fully decoupled from the tube.

A double-piston membrane type air spring comprises a shell, an upper installation base used for being fixedly connected with a vehicle body and a lower installation base used for being fixedly connected with a suspension swing arm, the upper installation base is provided with a first piston installation column extending downwards, and a first piston is fixedly arranged on the first piston installation column. The lower mounting seat is provided with a second piston mounting column extending upwards, a second piston is fixedly arranged on the second piston mounting column, a space distance is reserved between the first piston mounting column and the second piston mounting column, and a rubber air bag is arranged between the first piston and the second piston and located in the shell. The upper end of the rubber air bag is fixedly connected with the first piston installation column, the lower end of the rubber air bag is fixedly connected with the second piston installation column, the axial length ratio of the first piston installation column to the second piston installation column is 2: 1-4: 1, the axial length of the first piston is the same as that of the first piston installation column, and the axial length of the second piston is the same as that of the second piston installation column.

A damping member for a pneumatic valve of a pneumatic system of a vehicle, in particular a utility vehicle, a pneumatic system, a vehicle, a method, a computer program and / or a computer-readable storage medium are provided. A damping member (100) for a pneumatic valve (205) of a pneumatic system (201) of a vehicle (200a), in particular a utility vehicle (200b), where the valve (205) comprises an air outlet section (210) for discharging pressurized air (220); wherein the damping member (100) is adapted to be mounted to the air outlet section (210) for damping acoustic emissions of the pressurized air (220); the damping member (100) comprises a bracket structure (105); and the support structure (105) is adapted to damp acoustic emissions of the pressurized air (220) by conducting air (220) through the support structure (105).

A user accessible shock travel spacer assembly is disclosed herein. The system is used on a shock assembly having a shaft with an initial predefined stroke length. A retaining cap having a retaining cap thickness and a retaining cap opening therethrough. The retaining cap opening having a diameter that is larger than an outer diameter (OD) of a shaft of a shock assembly. At least one fastener to fasten the retaining cap with a portion of the shock assembly about the shaft, such that the retaining cap reduces a stroke length of the shaft of the shock assembly by the retaining cap thickness.

The invention belongs to the technical field of automobile suspensions, and particularly relates to an independent type double-cavity air spring which comprises a base, an air bag and a piston, and the base, the air bag and the piston define a closed air containing cavity. A column cavity with a downward opening is formed in the piston, a plunger in axial sealing sliding fit with the inner side wall of the piston is arranged in the column cavity, the plunger divides the gas containing cavity into a main gas chamber and an auxiliary gas chamber which are isolated from each other, the main gas chamber is located on the lower side of the plunger, and the auxiliary gas chamber is located on the upper side of the plunger. The piston is provided with a first inflation inlet communicated with the main air chamber and a second inflation inlet communicated with the auxiliary air chamber. The upper end of the push rod is connected to the plunger, and the lower end of the push rod is connected to the base; the axis of the push rod and the axis of the piston inner column cavity are arranged in the same direction. The rigidity adjusting range of the air spring is expanded, the high-pressure air in the auxiliary air chamber provides buffering limiting for compression movement of the air spring, thrust is provided for reset movement of the air spring and a vehicle body to enable the vehicle body to reset quickly, and the driving comfort of the vehicle is improved.

The present invention discloses an auxiliary spring that compensates for the height decrease due to the creep of a rubber body in a mechanical transmission manner, which includes a rigid core shaft, a rubber body vulcanized and bonded to the outer periphery of the core shaft, a metal outer sleeve vulcanized and bonded to the outer periphery of the rubber body, and a support plate horizontally installed on the top of the metal outer sleeve. A height lifting device is provided between the core shaft and the base. The lifting device includes a frame base, a lifting mechanism installed on the frame base, a torsion transmission mechanism, and a pressure storage mechanism. When the rubber body has crept and dropped to a set height, the carriage is in a heavy load condition, and the auxiliary spring encounters a downward overload impact, the support plate sinks and presses down the pressure storage mechanism, and the pressure storage mechanism temporarily stores the pressure. When the downward overload impact is released or the carriage heavy load is released, the pressure stored in the pressure storage mechanism causes the lifting mechanism to lift the auxiliary spring upward through the torsion transmission mechanism, thereby realizing the compensation for the decreased height of the auxiliary spring.

An accumulator defines an accumulator volume that can be placed into communication with a spring chamber of a gas spring. A working volume of the gas spring is the sum of the spring chamber volume and the accumulator volume. The accumulator can be configured so that the accumulator volume can be selectively increased or decreased as desired, thus modifying performance of the associated gas spring.

The invention discloses a temperature compensation gas spring, and relates to the technical field of gas springs. The gas spring comprises a piston rod assembly, a working cavity, a compensation cavity first part, a compensation cavity second part and a temperature compensation control valve assembly, wherein the piston rod assembly can reciprocate in the working cavity; the compensation cavity first part and the working cavity are arranged in the reciprocating motion direction, and the compensation cavity second part is arranged in the circumferential direction of the working cavity and communicates with the compensation cavity first part; the temperature compensation control valve assembly is located between the compensation cavity first part and the working cavity, and the temperature compensation control valve assembly controls communication between the compensation cavity first part and the working cavity. The low-temperature full-force-value compensation device can achieve the low-temperature full-force-value compensation effect on the basis that the space in the telescopic direction is limited and the stroke of the gas spring is not shortened, is effectively matched with an electric drive supporting system for use, and has the advantages of being easy to manufacture, low in cost and wider in application range.

The invention discloses an air spring with multiple bearings, an automobile suspension and an installation method.The air spring comprises a bearing installation base and a lower installation base, the lower installation base is arranged at the bottom of the bearing installation base, an automobile body installation base is arranged outside the bearing installation base, and a first bearing is arranged at the top of the bearing installation base; by the adoption of the air spring with the multiple bearings, the design requirement for bearing lateral force and torsional force of the air spring is met, and the sealing performance is reliable.

The invention relates to a linear actuator with power-off self-locking and constant supporting force. The linear actuator comprises a driving assembly, a gas spring unit, a braking assembly and a planetary roller lead screw pair. The driving assembly converts electric energy into rotating kinetic energy to drive the actuator to operate. The air spring unit provides constant supporting force through a built-in high-pressure air cavity, and the pressure is adjusted through an inflation valve so as to dynamically adjust the supporting force. The braking assembly realizes power-off self-locking through a movable permanent magnet and a liquid sealing structure; the planetary roller lead screw pair converts rotation kinetic energy of the driving assembly into linear motion. The technical problems that an existing linear actuator is high in energy consumption, unstable in supporting force and lack of a self-locking function are solved.

The utility model relates to the technical field of springs, in particular to a piston balance valve structure and a gas spring, and aims to solve the problem that a common gas spring cannot stay at any position. The piston balance valve structure comprises a cylinder barrel and a valve element, the valve element is inserted into the cylinder barrel, and a first cavity and a second cavity are formed in the two ends of the valve element respectively. The valve element comprises a piston body, a sliding sleeve and a reset spring. The sliding sleeve is sleeved on the piston body; the reset spring is used for applying elastic force to the sliding sleeve; the piston body is provided with a first passage, the sliding sleeve is provided with a second passage, the first passage is communicated with the first cavity, and the second passage is communicated with the second cavity. The valve element moves towards the first cavity to enable the first cavity and the second cavity to generate pressure difference so as to push the sliding sleeve, then the first channel and the second channel are communicated, the elastic force of the reset spring enables the first cavity and the second cavity to generate pressure difference and balance the elastic force, meanwhile, the pressure difference acts on the section of the cylinder barrel to balance loads, and residence at any position is achieved.

The invention relates to a gas pressure spring (50) comprising a working piston (2) which is guided displaceably in a working cylinder (1) along a stroke axis (H), a compensating cylinder (12) which encloses the working cylinder (1), and a compensating piston (10) which is of hollow-cylindrical shape and is guided displaceably in the compensating cylinder (12) along the stroke axis (H). The working cylinder (1) has an open end (1b), at which the compensating cylinder (12) forms a projection (15) beyond the working cylinder (1) with a closed end (15b). The compensating piston (10) separates a working chamber (1a) which is arranged in the working cylinder (1), a compensation chamber (12a) which is arranged between the working cylinder (1) and the compensating cylinder (12), and a restoring chamber (15a) arranged in the projection (15) from one another and is open at an upper side (10a) of the balancing piston (10) facing the working chamber (1a). The gas spring (50) comprises a seal (8) arranged on the upper side (10a) of the balance piston (10) which seals the balance piston (10) to the working cylinder (1) and to the balance cylinder (12).

The invention provides an air spring and damper assembly, an automotive suspension and a vehicle. The assembly includes: a damper having a damper housing extending out of a damper rod of the damper housing; the mounting assembly is provided with a first coupling part coupled with the damper rod and a second coupling part coupled with the vehicle body structure, and the first coupling part comprises a first outer fixing piece, a first inner fixing piece and a first elastic piece located between the first outer fixing piece and the first inner fixing piece; the gas spring is rotationally connected with the mounting assembly; the air spring is provided with a bag skin, and the central axis of the bag skin is not coaxial with the central axis of the damper rod. Moreover, the top of the gas spring is connected with the damper rod in a sealed mode, and the top of the gas spring is arranged between the first elastic piece and the damper shell in the axial direction of the damper rod. According to the assembly of the air spring and the damper, coupling parts in the Macpherson air spring can be reduced, the structural complexity and the cost are reduced, and meanwhile the space occupation of the assembly can be reduced.

A dual function fluid adjuster assembly. The dual function fluid adjuster assembly has a first adjuster assembly for adjusting a first rebound fluid circuit and a second adjuster assembly for adjusting a second rebound fluid circuit. At least a portion of the first adjuster assembly is at least partially housed within a shaft assembly, and at least a portion of the second adjuster assembly is at least partially housed within the shaft assembly.

The utility model relates to an air spring sliding column assembly which comprises an air spring and an integrated shock absorber, the shock absorber comprises a shock absorber pipe and a piston rod, one end of the piston rod is connected with a top rubber assembly through an installation mechanism, the top rubber assembly is contained in an upper air chamber upper piece and comprises a bearing piece, top rubber and an outer framework, one end of the top rubber is connected with the bearing piece, and the other end of the top rubber is connected with the outer framework. The end, facing the upper top cover, of the outer framework is provided with a flange part which is turned outwards in the radial direction, the upper top cover is detachably connected to the upper air chamber upper piece, the lower end face of the flange part abuts against the upper air chamber upper piece, a gap is formed between the lower end of the outer framework and the bottom space of the upper air chamber upper piece, and the lower end of the outer framework is in a suspended state. Therefore, the flange part of the flanging is tightly pressed with the upper part of the upper air chamber, and the outer framework is prevented from being in contact with the plastic air chamber to damage the plastic part.

The utility model discloses a base structure of an air spring, which comprises a base body and a backing ring, a plurality of elastic fasteners are circumferentially distributed on the inner wall of the lower portion of the base body in a surrounding manner, and the elastic fasteners protrude towards the center of the base body. The upper end of the backing ring can be clamped at the lower end of the elastic buckle, then the backing ring can be clamped in the base body, and the upper end face of the clamped backing ring is lower than or flush with the upper end face of the base body. Therefore, the connection of the base body and the backing ring does not occupy the axial space, the minimum thickness of the air spring base can reach a design value of 3mm, the overall height of the air volume of the air spring can be increased, and the volume is increased to the maximum extent; and the height size gap between the piston and the backing ring can be maximized, so that the air spring is prevented from bending up and down and interference between the backing ring and the piston is avoided.

The present application belongs to the technical field of air spring assemblies, and in particular relates to an air spring assembly with adjustable stiffness based on a dual stiffness valve and multiple chambers. The present application is divided into three independent air chambers by two independently controlled solenoid valves and a matching structure. The first solenoid valve and the second solenoid valve are installed in these components and form a channel for controlling the flow of gas. The air chambers are connected and disconnected by independently controlling the power on and off of the solenoid valves, thereby changing the number of air chambers opened in the air spring assembly, thereby changing the actual use volume of the air spring assembly, so that the air spring assembly has multiple working states and realizes the stiffness adjustment function.

An embodiment armrest assembly for a vehicle includes an armrest rotatably coupled to an armrest board and configured to be extended from the armrest board by rotating forward or to be housed in the armrest board by rotating and standing and a speed-reduction damper mechanism connecting the armrest and the armrest board and configured to make a rotational speed of the armrest uniform by reducing the rotational speed when the armrest rotates to be extended.

A charger according to the present embodiment may comprise a cover having a space formed in the cover; a first pulley guide and a second pulley guide disposed in the cover; a first moving pulley guided by the first pulley guide and moved by a charging cable; a second moving pulley guided by the second pulley guide and moved by the charging cable; and a damper installed on one of the first moving pulley and the second moving pulley.

The invention discloses a large-deflection large-torsion air spring and damper combined damping device which comprises a damper assembly and an air spring leather bag, the damper assembly comprises a top seat, a torsion piston barrel, a cylinder barrel and a piston rod, top rubber is installed in a top seat hole of the top seat, the top end of the piston rod is connected with the top rubber through a damper nut, and the air spring leather bag is arranged in the cylinder barrel. A buffer block used for assisting the flexible supporting piston rod is further arranged in a top seat hole of the top seat. The cylinder barrel is sleeved with a torsion piston barrel, the outer wall of the lower middle portion of the cylinder barrel protrudes outwards to be provided with a bearing support, a rotating bearing is fixed to the bearing support and comprises two bearing parts which are in rotating fit with each other, one bearing part is connected with the cylinder barrel, and the other bearing part is connected with the torsion piston barrel. And an air spring leather bag is hermetically connected between the torsion piston cylinder and the top seat. The damping device can adapt to large deflection and large torsion damping conditions when a vehicle jolts, the air spring leather bag is effectively protected, and the service life of the whole device is prolonged.

The invention provides an air spring and application thereof. The air spring comprises a shell, a connecting rod, a piston and an embedded porous material, a closed cavity is defined by the shell, and the closed cavity is filled with gas; the piston is located in the closed cavity, one end of the connecting rod is connected with the piston, and the other end of the connecting rod penetrates through the shell and is located outside the closed cavity; the closed cavity is divided into a closed cavity positive cavity and a closed cavity negative cavity which are independent by a piston, and the closed cavity positive cavity is a cavity where the connecting rod is located; the piston is provided with a through hole capable of being automatically opened and closed, and the through hole controls the communication state between the positive closed cavity and the negative closed cavity. And the embedded porous material is positioned in the positive cavity of the closed cavity and is provided with micropores and macropores. The invention further provides damping equipment comprising the air spring. The rigidity of the air spring is reduced, the damping force change is slowed down, the movement is softer, and the stability is high.

The invention discloses a Macpherson suspension air spring assembly and a vehicle, relates to the technical field of automobile suspension vibration reduction, and solves the problem that the service life of an air bag is affected due to non-uniform stress in the working process of the air bag because a piston is eccentrically arranged and the central axis of the piston is intersected with the central axis of a vibration damper strut. The Macpherson suspension air spring assembly comprises a mounting assembly and a spring assembly, the upper end of the air bag is connected with the lower end of the mounting assembly in a slope matching manner; the central axis of the piston and the central axis of the air bag are eccentrically arranged; the damper assembly comprises a piston rod, the upper end of the piston rod is connected with the installation assembly, the lower end of the piston rod is connected with the piston in a penetrating and inserting mode, and the central axis of the piston rod and the central axis of the piston are arranged in an eccentric mode. The vehicle comprises the Macpherson suspension air spring assembly. Due to the eccentric design of the piston and the piston rod, the stress change of the central axis of the air bag is more uniform and relieved, and the service life of the air bag is prolonged.

The invention provides an electronic control shock absorber with coaxial dual solenoid valves. An electronically controlled shock absorber includes: a cylinder (110) formed with a dual structure having an inner space divided into a compression chamber and a rebound chamber and an outer space in which a reservoir chamber (117) is formed; a compression solenoid valve (180) mounted on the outside of the cylinder (110); and a rebound solenoid valve (190) mounted on the outside of the cylinder (110). The compression solenoid valve (180) and the rebound solenoid valve (190) are arranged to face each other on the same axis.

The invention relates to a vertical high-speed motor active and passive vibration reduction system, which comprises a motor body, a motor base, a controller, a vibration sensor and an integrated active and passive pneumatic damping actuator, and is characterized in that the actuator is arranged between the motor body and the motor base; the vibration sensor is in signal connection with the motor body; the input end of the controller is in signal connection with the vibration sensor, and the output end of the controller is in signal connection with the high-speed switch pneumatic servo valve. According to the vertical high-speed motor active and passive vibration reduction system and vibration reduction method, a controller, a high-speed switch pneumatic servo valve and other components form an active damping system; and the damping pore plate and the auxiliary air chamber jointly form a built-in passive damping system. The passive damping system processes broadband vibration, and active control burden is reduced; and the active damping system achieves accurate suppression, and the overall energy efficiency ratio is increased. The active damping system and the passive damping system work in cooperation to jointly solve the vibration problem, so that the vibration problem of the vertical high-speed motor is rapidly and effectively suppressed.

A user accessible shock travel spacer assembly is disclosed herein. The system is used on a shock assembly having a shaft with an initial predefined stroke length. A retaining cap having a retaining cap thickness and a retaining cap opening therethrough. The retaining cap opening having a diameter that is larger than an outer diameter (OD) of a shaft of a shock assembly. At least one fastener to fasten the retaining cap with a portion of the shock assembly about the shaft, such that the retaining cap reduces a stroke length of the shaft of the shock assembly by the retaining cap thickness.

The utility model provides a bidirectional rigid locking gas spring, which belongs to the technical field of gas springs and comprises a cylinder barrel, a piston rod component is arranged in the cylinder barrel and comprises a piston, a second piston rod and a first piston rod, the tail end of the first piston rod extends out of the right end of the cylinder barrel, the lining is located in the piston, the spring is located in the lining, the valve rod abuts against the right end of the spring, the control rod is located in the first piston rod and abuts against the right end of the valve rod, the valve rod is concaved inwards to form a flowing cavity, and an air cavity and an oil cavity are formed in the cylinder barrel through a second sealing piece. The oil cavities comprise the first oil cavity and the second oil cavity which are located on the left side and the right side of the piston respectively, the periphery of the piston is provided with a first channel and a second channel, the periphery of the bush is provided with a third channel, and the control rod is used for driving the valve rod to move and controlling the flowing cavity to be communicated with the third channel in cooperation with the spring so as to control the first oil cavity to be communicated with the second oil cavity. When the first oil cavity and the second oil cavity are not communicated, compression cannot be carried out due to the fact that gas spring oil exists on the two sides of the piston, and therefore two-way rigid locking is achieved. The gas spring provided by the utility model can be rigidly locked in two directions of stretching and compression (both the compression direction and the stretching direction are in an oil pressure state), is applied to a steering wheel adjusting column to adjust the working angle of a steering wheel, and can realize that the steering wheel is rigidly locked without obvious movement when the working angle is pulled and pressed.