1460results about "Liquid based dampers" patented technology

Hydraulic damper(1000) for furniture doors or drawers. Damper(1000) comprises housing(1) having a closed first end(14) and a second end provided with lid(7); and piston(2) movable in housing(1) along longitudinal piston axis(A). Piston(2) defines first and second chambers(11,12) inside housing(1), respectively at first and second end-sides of piston(2). Piston(2) comprises circumferential groove(24) defined between circumferential first and second shoulders(241,242). Groove(24) is provided with annular collar(5) axially movable between first and second shoulders(241,242). Collar(5) is formed from elastic material to reversibly contact inner surface(13) of housing(1) when radially expanded when subjected to hydraulic-pressure forces parallel to axis(A). First shoulder(241) is arranged allowing hydraulic fluid to flow on collar(5) when collar(5) contacts first shoulder(241). Second shoulder(242) is arranged blocking hydraulic fluid from flowing on collar(5) when collar(5) contacts second shoulder(242). Piston(2) is provided with channel(21) arranged to provide fluid flow communication between first and second chambers(11,12).

A damper assembly includes a rod elongated along an axis. The damper assembly includes a body supported by the rod, the body having a first surface and a second surface opposite the first surface. The body and the rod define a passage between the body and the rod, the passage extending from the first surface of the body to the second surface of the body.

The present disclosure relates to a hydraulic damper comprising a main tube, a piston assembly, a base valve assembly, and at least one hydraulic compression stop assembly cooperating with a compression valve assembly, and comprising a pin disposed slidably within the piston rod and biased to project an activating tip towards the compression chamber. Said compression valve assembly comprises at least one deflectable or floating disc covering compression flow passages, and biased by a piston member slidable along said axis and normally abutting a retaining surface, and a pressure chamber having one surface defined by a surface of said piston member abutting said retaining surface, wherein said pin upon sliding inside the piston rod facilitates a flow of the working liquid from the compression chamber into said pressure chamber to increase biasing load on said at least one deflectable or floating disc.

The invention relates to the field of electromagnetic valves, in particular to a valve body unit, an electromagnetic valve with the valve body unit and an electric control hydraulic shock absorber with the valve body unit. The hydraulic unit comprises a main valve assembly; the valve plate unit is arranged on the main valve assembly; the main valve assembly comprises a main valve shell. An oil channel is arranged on the main valve shell; the valve plate unit comprises a control valve plate; the control valve plate is arranged at the end part of the main valve shell; the control valve plate can deform; after the control valve plate is deformed, a communication channel is formed at the joint of the control valve plate and the main valve shell; through the arrangement of the control valve plate, after the current of the coil unit is cut off, overflow and discharge of hydraulic oil can be achieved through deformation of the control valve plate.

A damper assembly includes a housing having a tubular shape defining a main chamber extending along a center axis. A piston is movable along the center axis and divides the main chamber into a compression chamber and a rebound chamber. The piston includes a piston body defining a frequency-adaptive orifice (FAO) passage providing fluid communication between the compression chamber and the rebound chamber. The piston includes an FAO valve assembly having an FAO cover member configured to block fluid flow therethrough in response to application of a low-frequency excitation, and allowing fluid flow through the FAO passage in response to application of a high-frequency excitation. The FAO valve assembly also includes a tappet configured to translate relative to the piston body to bias the FAO cover member to selectively cover the FAO passage in response to the application of the low-frequency excitation.

The invention belongs to the technical field of automobile shock absorbers, and particularly relates to a shock absorber assembly structure for an active hydraulic suspension. Liquid in the rod cavity and the energy accumulator can be pumped into the rodless cavity by regulating and controlling the two-way pump to achieve active jacking of the hydraulic shock absorber, liquid in the rodless cavity is pumped into the energy accumulator and the rod cavity to enable the shock absorber to be actively compressed, and then the lifting end of the shock absorber drives a vehicle body to synchronously move to achieve active adjustment of the height of the vehicle body. In addition, a first channel, a second channel, a third channel, a fourth channel, a first electromagnetic one-way damping valve, a second one-way damping valve, a third electromagnetic one-way damping valve and a fourth one-way damping valve are arranged on the base, and the first electromagnetic one-way damping valve, the second one-way damping valve, the third electromagnetic one-way damping valve and the fourth one-way damping valve are used for controlling the oil flow direction and damping force. An oil flow channel and a flow direction of a traditional shock absorber are changed, a plurality of valve bodies are integrally assembled, and assembly of the valve bodies and the shock absorber is facilitated.

A shock absorber body assembly is disclosed that is includes a shock body formed of a cylinder defining a top cylinder end and a bottom cylinder end, and having a cylinder wall that surrounds a cylinder cavity. The cylinder wall is defined by a solid interior portion and a raised cooling pattern disposed on and proud of an exterior side of cylinder wall. The raised cooling pattern is comprised of one or more fins, wherein the raised cooling pattern is configured to provide for heat transfer from hydraulic fluid within the cavity of the cylinder cavity to an environment external to the shock absorber body assembly. The raised cooling pattern includes one or more cooling fins that extend along a length of the cylinder in a straight line and extend outwardly from the cylinder wall in an orthogonal direction, a cooling lattice mesh, or a cooling gyroid mesh.

The invention belongs to the technical field of shock absorption, and discloses a shock absorber. According to the shock absorber, the temperature change of a shock absorber medium is monitored in real time through the detection piece, and the distance between the one-way valve element and the fastening plug is automatically adjusted through the driving assembly, so that the damping force of the shock absorber can be adaptively adjusted along with the temperature change of the medium. When the viscosity is reduced due to the rising of the medium temperature, the gap between the one-way valve element and the fastening plug is automatically reduced, and the damping force is increased to maintain the vibration reduction performance; when the viscosity is increased due to reduction of the medium temperature, the gap between the one-way valve element and the fastening plug is automatically enlarged, and the situation that damping force is too large, and vibration reduction comfort is affected is avoided. According to the automatic adjusting mechanism, the problem of damping force fluctuation caused by temperature change of a traditional shock absorber is effectively solved, and the stable shock absorption effect of a vehicle can be kept at different environment temperatures.

The invention relates to the technical field of shock absorbers, and particularly discloses a novel frequency sensitive shock absorber piston valve which comprises a connecting rod arranged on the inner side of a shock absorber shell, a first flow guide hole and a second flow guide hole are formed in the lower end of the connecting rod, and the first flow guide hole and the second flow guide hole communicate with an oil channel formed in the inner side of the connecting rod, so that a bypass channel is formed; the piston valve is arranged between the first flow guide hole and the second flow guide hole, the frequency sensitive valve sleeves the outer side of the connecting rod, one side of the piston valve is in lap joint with one side of the frequency sensitive valve, and the frequency sensitive valve is communicated with the second flow guide hole. On the basis of a traditional shock absorber valve assembly, a set of frequency sensitive valve system is additionally arranged, the frequency sensitive valve system can conduct mechanical automatic adjustment on the damping force of the shock absorber along with changes of the vibration frequency or stroke of a whole vehicle at the low-frequency stage and the high-frequency stage, and therefore the requirement for actual use of the whole vehicle is met; the driving comfort and controllability are improved, and the reliability is better.

The invention relates to a self-adaptive force output and energy consumption bridge vibration and vibration control inerter tuning device, and belongs to the technical field of vibration control. Comprising a roll shaft support, a spring rod, a main inerter element, a box chamber main body, a secondary inertia flywheel, a flow guide pipe, a transmission connecting rod and a flow baffle, the main inerter element penetrates through and is arranged in the box chamber main body, the outer end of the main inerter element is connected with the spring rod, the spring rod is connected with the roll shaft support, and the roll shaft support is respectively fixed with the bottom surface of a main beam and the top of a bridge pier; in addition, the flow guide pipe is arranged in the box chamber body, a flow baffle and a transmission connecting rod are further arranged in the flow guide pipe, and the transmission connecting rod is further connected with a secondary inertia flywheel. The damping device is achieved through a hydraulic mechanism, and the damping device with the self-adaptive inerter coefficient is formed through linkage of the inerter devices in the main box chamber and the auxiliary box chamber, so that the purposes of changing the inerter coefficient in real time and damping are achieved. The shock resistance, the transmission efficiency, the energy consumption effect, the structural rigidity and the stability of a vibration reduction system can be improved.

The invention discloses a hydraulic oil cylinder with an axial supporting protection function, and belongs to the technical field of hydraulic cylinders, the hydraulic oil cylinder comprises an outer cylinder body, an oil cylinder rod and a first piston, a center oil cavity is formed in the outer cylinder body, the first piston is fixedly connected to the bottom of the oil cylinder rod, and the oil cylinder rod and the first piston are both slidably connected to the interior of the center oil cavity; a pressure buffering structure is connected into the outer cylinder body, when the oil cylinder rod bears pressure, the pressure buffering structure and the magnetic supporting structure are matched with each other to jointly share the pressure borne by the oil cylinder rod, a supporting rod in the magnetic supporting structure can transmit the pressure of the oil cylinder rod to a second piston, and therefore the oil cylinder rod is prevented from falling off. The second piston slides downwards in the storage cavity and extrudes the magnetorheological fluid, the stress of the oil cylinder rod is relieved through the buffering characteristic of the magnetorheological fluid, and therefore protection on the oil cylinder rod is effectively enhanced, and the stability and reliability of the hydraulic oil cylinder under the pressure effect are improved.

The utility model belongs to the technical field of shock absorbers, and particularly relates to a hydraulic damping adjusting device of a shock absorber, the shock absorber comprises a hydraulic cylinder and a piston rod sleeved with a piston valve body, the piston valve body divides an inner cavity of the hydraulic cylinder into an upper oil cavity and a lower oil cavity, the piston rod is provided with a throttling channel, and a throttling rod axially slides on the piston rod. A pre-tightening spring is arranged between the throttling rod and the throttling channel, the hydraulic damping adjusting device comprises a hydraulic adjusting end cover, an adjusting cavity is formed in the hydraulic adjusting end cover, and the adjusting cavity and the throttling rod are matched with a hydraulic push rod on the hydraulic adjusting end cover through a plunger to be in transmission connection. According to the utility model, the throttle lever is driven to axially move in a hydraulic mode so as to adjust the flow area of the throttle channel and realize the damping force adjustment of oil flowing, so that the problems of time and labor waste and low adjustment efficiency caused by mechanical transmission matched adjustment are avoided, and meanwhile, the problem of leakage of damping oil in the prior art is effectively solved.

The invention relates to the technical field of shock absorption, in particular to an active shock absorber and an installation method. The active damper comprises a damping assembly and a driving unit. The damping assembly comprises an outer cylinder unit and a piston unit; the outer cylinder unit comprises an outer cylinder body, a first opening and a second opening; part of the piston unit is movably arranged in the outer cylinder and divides the outer cylinder into an upper cavity and a lower cavity. The first opening is communicated with the upper cavity; the second opening is communicated with the lower cavity. The driving assembly comprises a driving unit and a first supporting unit; the driving unit inlet / outlet is communicated with the first port and the second port; the first supporting unit comprises a first connecting module, a second connecting module and a third connecting module; the first connecting module and the third connecting module are respectively connected with the driving unit; the second connecting module is arranged between the first opening edge and the second opening edge; the second connecting module is connected with the outer cylinder body; and the second connecting module is connected with the side walls in the first port and the second port. Therefore, the problem that when the driving structure is connected to the outer side of the cylinder body, fixation is not firm enough is solved.

The invention discloses a variable-damping shock absorber and a motor vehicle, and the variable-damping shock absorber comprises a damping tube filled with a damping medium; the piston rod is arranged in the damping tube and does telescopic motion in the axial direction of the damping tube; the working piston is connected with the piston rod and divides the internal space of the damping tube into a first working cavity and a second working cavity, and two damping medium control loops are formed between the first working cavity and the second working cavity; the first electromagnetic valve and the second electromagnetic valve are arranged on the two damping medium control loops respectively, a first one-way valve is arranged at the front end of the first electromagnetic valve, and a second one-way valve is arranged at the front end of the second electromagnetic valve. Damping can be independently adjusted when the damping shock absorber stretches out and draws back, meanwhile, the response time can be obviously shortened through the structure, and vehicle controllability and riding experience are greatly improved.

Rheological-dynamic shock absorber, comprising: a housing (100) provided with an internal cavity (110); a piston assembly (200) slidably arranged along an axial direction of the inner cavity (110), wherein the piston assembly (200) separates the inner cavity (110) into a first fluid chamber (111) and a second fluid chamber (112), wherein at least one flow channel (200a) is provided on the piston assembly (200) and is connected to the first fluid chamber (111) and the second fluid chamber (112), a damping fluid flows between the first fluid chamber (111) and the second fluid chamber (112) through the flow channel (200a), one of the housing (100) and the piston assembly (200) is connected to a vibration element, and the other of the housing (100) and the piston assembly (200) is connected to an element to be buffered; and a swirl module (300) which is pushed onto the piston arrangement (200) and arranged in the first fluid chamber (111), wherein the swirl module (300) comprises at least one rotatable swirl vane (310) and the damping fluid causes the swirl vane (310) to rotate when it flows between the first fluid chamber (111) and the second fluid chamber (112).

A modular hydraulically-adjustable preload and / or cross-over system. The system includes a housing configured to couple with a main damper cylinder, the housing including a slave cylinder within a portion of a slave cylinder chamber, the slave cylinder telescopically movable with respect to the housing; a fluid chamber; and a fluid port configured to provide a fluid flow for the fluid chamber, wherein an increase in a fluid volume within the fluid chamber causes a portion of the slave cylinder to telescopically extend from the slave cylinder chamber. A preload flange coupled with the slave cylinder at an end of the housing such that a change in a location of the slave cylinder causes a change in a location of the preload flange.

The invention discloses an oil way structure of a hydraulic damping cylinder, the hydraulic damping cylinder, a limb and a robot, and the oil way structure of the hydraulic damping cylinder comprises a body which is provided with a first group of one-way valve mounting positions, a second group of one-way valve mounting positions, a damper mounting position and a hydraulic cylinder mounting position; a first one-way valve and a second one-way valve are mounted at the first one-way valve mounting A third one-way valve and a fourth one-way valve are mounted at the second one-way valve mounting A first channel, a second channel, a third channel, a fourth channel and an intersection channel are formed in the body. Relative to the intersection channel, the first one-way valve, the second one-way valve, the third one-way valve and the fourth one-way valve have the same flowing direction. And the oil path structure forms a channel for hydraulic oil to circulate, so that the hydraulic oil circulates in each component of the hydraulic damping cylinder. According to the oil way structure of the hydraulic damping cylinder, hydraulic oil channels are concentrated, the number of the hydraulic oil circulation channels in other parts of the hydraulic damping cylinder is reduced, and the overall machining difficulty and cost of the hydraulic damping cylinder are reduced.

A damper link (14) for a sway bar system (100), the damper link for coupling a first end of a sway bar to a first location on a vehicle (152), which damper link comprises: a body (202) comprising a damping chamber (209) and a reservoir (222); a through shaft (204) coupled to a piston (208), wherein said piston divides said damping chamber into a first chamber (210) and a second chamber (216); a high-pressure line (218) fluidly coupled with said damping chamber (209) and said reservoir (222), to allow fluid to flow from said first chamber (210) and said second chamber (216) to said reservoir (222); and a low-pressure line (220) fluidly coupled with said damping chamber (209) and said reservoir (222), to allow fluid to flow from said reservoir to said first chamber (210) and said second chamber (216), wherein in use said high-pressure line (218) and said low-pressure line (220) assist in self-centering said sway bar.

The application discloses a damping-adjustable hydraulic bushing and a control method thereof. The damping-adjustable hydraulic bushing is composed of a hydraulic bushing body and a solenoid valve. The hydraulic bushing body comprises a bushing support, a main spring rubber, a cast aluminum inner tube, an aluminum outer tube and a cage-shaped framework. The cast aluminum inner tube, the main spring rubber and the aluminum outer tube are coaxially arranged from inside to outside. The cage-shaped framework is arranged in the main spring rubber and used for supporting the main spring rubber. Two flow channel plates are assembled between the aluminum outer tube and the main spring rubber, so that a brake liquid chamber and an acceleration liquid chamber are formed between the main spring rubber and the flow channel plates respectively. A brake flow channel on the brake side flow channel plate cooperates with an acceleration flow channel on the acceleration side flow channel plate to form a passage. A connecting bridge is arranged on the cage-shaped framework. The solenoid valve is connected to the connecting bridge through bolts. An axial actuating hole is arranged on the cage-shaped framework. An actuating rod is arranged in the axial actuating hole and controlled by the solenoid valve.

The invention belongs to the technical field of shock absorbers, and particularly relates to a variable damping shock absorber which comprises a cylinder body assembly, the cylinder body assembly comprises a working cylinder, a middle cylinder and an oil storage barrel which are coaxially assembled from inside to outside, a cavity between the working cylinder and the middle cylinder is configured to be a recovery middle cavity, and a cavity between the middle cylinder and the oil storage barrel is configured to be an oil storage cavity; the piston valve group is arranged in the working cylinder and divides the working cylinder into a recovery cavity and a compression cavity, and the middle cylinder is provided with a circulation hole for communicating a recovery middle cavity with the recovery cavity; a cavity between the middle cylinder and the isolation assembly is configured to be a compression transition cavity, and the compression transition cavity communicates with the compression cavity. The recovery middle cavity is communicated with the oil storage cavity through a recovery valve; the compression transition cavity is communicated with the oil storage cavity through a compression valve; according to the shock absorber, the working cylinder, the middle cylinder and the oil storage barrel are coaxially arranged, and the structure that the recovery middle cavity and the compression transition cavity are defined in the middle cylinder or in the peripheral area of the middle cylinder through components such as the isolation assembly is adopted, so that the overall structure of the shock absorber is relatively simplified.

This shock absorber includes a first valve assembly connected to one end of a tube in an axial direction, a piston assembly dividing an inner chamber of the tube into a first chamber and a second chamber, a piston rod extending from the tube through the first chamber with the piston assembly connected to an intermediate position in the axial direction, a cup provided in the second chamber, and a second valve assembly disposed in the second chamber to be connected to the piston rod and configured to enter and exit from the cup. The cup includes a sleeve disposed in the second chamber with a gap between itself and the tube in a radial direction, and a base adapter fixed to the sleeve by press fitting and provided between the sleeve and the first valve assembly.

The invention relates to the technical field of shock absorbers, in particular to a hydraulic damping shock absorber structure which comprises a hydraulic cylinder, a piston, an adjusting disc, an adjusting mechanism and a supporting plate. The hydraulic cylinder is slidably connected with a piston rod, one end of the piston rod penetrates through the hydraulic cylinder and extends into the hydraulic cylinder, and the hydraulic cylinder is filled with hydraulic oil; the piston is fixedly connected with the piston rod and provided with a plurality of flow guide holes in a penetrating mode. The adjusting disc is arranged in the hydraulic cylinder, and an adjusting hole matched with the flow guide hole is formed in the adjusting disc in a penetrating mode; the adjusting mechanism is arranged in the hydraulic cylinder; the supporting plate is arranged in the hydraulic cylinder, and the top of the supporting plate is fixedly connected with a reset spring. Through cooperative arrangement of the piston, the adjusting disc and the adjusting mechanism, when the hardness of the damper needs to be adjusted, the adjusting hand wheel is rotated to change the positions of the flow guide hole and the adjusting hole, then the size of the flow guide channel is changed, and adjustment of the hardness of the damper is achieved under the condition that the damping stroke of the damping spring is not changed.

A shock absorber for a vehicle including a pressure tube, a piston body slidably positioned within the pressure tube, a blowoff disc having a first surface in contact with a surface of the piston body and an opposite second surface, a disc stack, and a preload ring axially positioned between the disc stack and the blowoff disc. The preload ring is in direct contact with the second surface of the blowoff disc and includes a circular outer surface and a substantially constant thickness. The preload ring further includes a cross-sectional width that varies along its circumference. The preload ring increases smoothness of the blowoff opening behavior of the shock absorber, which can result in an improved comfort level of the vehicle.

The present disclosure provides a frequency-sensitive shock absorber capable of implementing target performance of damping force by preventing a valve portion formed of a rubber material or a synthetic resin material constituting a pilot valve of a valve assembly from peeling in a high-pressure and high-temperature environment and securing a flow path, and a valve assembly employed therein. An upper pilot valve and a lower pilot valve each include a base portion in the form of a metal plate and a valve portion integrally molded with the base portion as an elastic material passes through a molded hole formed in a penetrating manner in the base portion, and elastically deformed vertically.

The invention discloses an anti-impact single-rod shear thickening damper, and relates to the field of dampers. The piston is connected in the cylinder barrel in a sliding manner and is provided with a plurality of damping holes; one end of the piston rod is connected with the piston, and the other end of the piston rod penetrates through the cylinder barrel and extends out of the cylinder barrel; the baffle disc is rotationally connected to the piston and used for opening and closing the damping holes, and communicating holes which are used for communicating the damping holes and have the same number as the damping holes are formed in the baffle disc. According to the damper, the baffle disc is rotated by an operator to shield or open the damping hole, so that the flowing sectional area of damping liquid is changed, the damping force of the damping liquid is changed, and the damping requirements of the damper under different load conditions are met.

The invention relates to the technical field of shock absorbers, in particular to a hydraulic pilot-operated type adjustable pre-tightening shock absorber. The hydraulic pilot-operated type adjustable pre-tightening shock absorber comprises a piston assembly used for providing shock absorption damping and a hydraulic driving assembly, a spring piece is arranged outside the piston assembly, one end of the spring piece is fixed to the piston assembly, the spring piece is used for providing damping force for the piston assembly, and the other end of the spring piece is connected with the hydraulic driving assembly. The hydraulic driving assembly provides axial adjusting force so that the pre-tightening force of the spring piece on the piston assembly can be changed. The hydraulic driving assembly comprises a valve sleeve provided with a pressure control part and an output rotor, the output rotor is installed in the valve sleeve, a gap exists between the output rotor and the upper portion of the valve sleeve, and the output rotor is in sliding fit with the valve sleeve and can rotate and axially move relative to the valve sleeve. The invention provides a shock absorber which is compact in structure, quick in response, easy to realize in engineering and capable of effectively improving the adaptability of a vehicle.

The invention discloses a vehicle hydro-pneumatic suspension system, a one-way variable damping valve, a shock absorber and a vehicle, the vehicle hydro-pneumatic suspension system comprises a suspension hydraulic cylinder provided with a piston rod and a cylinder body, one end of the piston rod is used for being connected with a frame, and the cylinder body is connected with an axle; the energy accumulator is connected with the suspension hydraulic cylinder; the one-way variable damping valve is connected between the suspension hydraulic cylinder and the energy accumulator; the one-way variable damping valve comprises a valve body, a rubber check valve, an oil guide block, a valve element, a damping valve plate, a large reset spring, an electromagnet assembly and a small reset spring. The valve element is arranged in a first flow channel cavity of the oil guide block in a sliding mode, and the damping valve plate is arranged between the valve element and the oil guide block. And the rubber check valve is arranged at one end of the second runner cavity. According to the vehicle hydro-pneumatic suspension system and the one-way variable damping valve, accurate control of one-way passage damping can be achieved, the damping can be flexibly adjusted according to different working condition requirements, meanwhile, the low resistance characteristic during reverse flowing is guaranteed, and the overall performance of the vehicle hydro-pneumatic suspension system is improved.

The present invention relates to a high-frequency response semi-active shock absorber with adjustable damping, which includes an oil storage cylinder, a working cylinder, a piston rod and a bypass oil passage. A conducting one-way valve is arranged between the working cylinder and the oil storage cylinder, and both ends of the conducting one-way valve are respectively communicated with the lower end of the working cylinder and the inside of the oil storage cylinder. The piston body is provided with a conducting hole and a piston one-way valve for communicating the upper chamber and the lower chamber. The bypass oil passage includes a first branch oil passage, a second branch oil passage and a third branch oil passage which are arranged in parallel. A first switching valve and a first pilot valve are connected in series on the first branch oil passage. A second switching valve is arranged on the second branch oil passage. A first overflow valve is arranged on the third branch oil passage. The purpose of the present invention is to solve or at least alleviate the problem that the traditional passive hydraulic shock absorber cannot be adjusted in real time according to the vehicle load and line conditions, and to provide a high-frequency response semi-active shock absorber with adjustable damping.

A ring circumscribing a moveable rod of a hydraulic damper. The movable rod defining an axis. The ring comprising a first wall, a second wall, an inner wall, an outer wall and a fluid passage. The fluid passage comprising a first channel extending radially along the second wall from the inner wall, with respect to the axis The fluid passage further comprising a second channel.

A motor vehicle having an active damping control, which includes at least one vibration damper having a damper piston, which can be moved back and forth in a main pipe with hydraulic medium in an axial direction relative to the main pipe. The main pipe is arranged in a container pipe. An intermediate pipe is arranged between the main pipe and the container pipe. The main pipe, the intermediate pipe and the container pipe are arranged coaxially in a three-pipe damper. The damper piston is attached to an end of a piston rod.