CN103671686B - Passive fluidic resistor suspension with equivalent mechanical structure - Google Patents
Passive fluidic resistor suspension with equivalent mechanical structure Download PDFInfo
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- CN103671686B CN103671686B CN201310704157.8A CN201310704157A CN103671686B CN 103671686 B CN103671686 B CN 103671686B CN 201310704157 A CN201310704157 A CN 201310704157A CN 103671686 B CN103671686 B CN 103671686B
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Abstract
The invention relates to a passive fluidic resistor suspension with an equivalent mechanical structure, and belongs to the technical field of engine supporting structures. The passive fluidic resistor suspension with the equivalent mechanical structure mainly comprises an external rubber mainspring, an upper connecting bolt connected with the external rubber mainspring, an external supporting spring, an upper fluid chamber, a lower fluid chamber, an inner gas chamber, an inner spring, a mass block and the like, wherein the inner spring and the mass block are arranged in the inner gas chamber. The upper fluid chamber which tightly abuts against the upper end face of a partition board between the upper fluid chamber and the lower fluid chamber, an external gas chamber and the inner gas chamber are arranged in sequence from outside to inside. The lower fluid chamber tightly abuts against the lower end face of the partition board between the upper fluid chamber and the lower fluid chamber. An inertia channel which enables the upper fluid chamber to be communicated with the lower fluid chamber is arranged in the partition board between the upper fluid chamber and the lower fluid chamber. According to the passive fluidic resistor suspension with the equivalent mechanical structure, the notch frequency of the fluidic resistor suspension is constant within a low frequency range, but the dynamic stiffness of the fluidic resistor suspension is reduced as far as possible within a notch frequency range; in addition, the dynamic stiffness of a corresponding peak frequency is reduced as far as possible, the noise lowering effect and the damping effect of the engine fluidic resistor suspension are improved within the low frequency range, and the fatigue performance and the creep property of the fluidic resistor suspension can also be improved.
Description
Technical field
The present invention relates to engine support structure, be specifically related to the suspension of a kind of engine flooding.
Background technique
Vehicle motor assembly suspension system refers to the elastic connecting system between power assembly and car body, and the quality of this system directly affects the smoothness of automobile.But along with the light-weight design of automobile, the four cylinder engine that especially balance is poor, in the engine behind front wheel-application of front wheel driving pattern in vehicle, makes the impact of power assembly on automobile ride increasing.Vehicle engine assembly is a vibrating source, simultaneously also by the object of vibration isolation.
Rubber mounting, as the vibration isolation element in vehicle engine assembly suspension system, had once played important effect, at present in the good motor of balance, still adopted and used it as vibration isolation element.But the dynamic characteristic of rubber mounting element has 2 deficiencys: vibration damping is less than normal, can not meet vehicle engine assembly suspension system in the vibration isolation of lower frequency region, damping property requirement; There will be dynamic hardening phenomenon when dither, cause its dynamic stiffness to enlarge markedly, can not meet automobile power assembly suspension system in the vibration isolation of high-frequency domain, anti-acoustic capability requirement.
Along with the progress of technology, in order to reduce vehicle in the process of moving engine luggine on the impact of vehicle.From the end of the seventies, a kind of novel liquid damping type rubber mounting vibration isolation element (be called for short hydraulically damped rubber mount or Hydraulic Engine Mount) starts abroad automobile to be applied, it sets up liquid damping mechanism in the rubber mounting element closed, its elastic characteristic and damping characteristic are all significantly better than General Purpose Rubber suspension members, the shortcoming of General Purpose Rubber suspension members can be made up to a great extent, thus greatly can improve vibration insulation and noise reduction, the vibration reduction and cushioning performance of automobile power assembly suspension system.
Novel Hydraulic Engine Mount can be decayed the vibration of low frequency, intermediate frequency and high-frequency region in vehicle travel process, also has and reduces the ability of motor medium-high frequency vibration to the transmission of car body, suppress the air chamber resonance noise in passenger compartment.Present stage, increasing car enterprise adopts Hydraulic Engine Mount.Typical Hydraulic Engine Mount structure is that upper liquid chamber realizes intercommunication by inertia channel and lower liquid chamber.Liquid in inertia channel oscillate in passage, when fluid viscosity is large, can produce an additional damping.But when fluid viscosity is less, liquid is oscillate in passage, its effect is equivalent to a dynamic vibration absorber.But when trap frequency changes, simultaneously also can change in the dynamic stiffness of crest frequency point.When making to reduce in the dynamic stiffness of trap frequency point, then can become large in the dynamic stiffness of crest frequency point.
In sum, in existing passive Hydraulic Engine Mount device, when vehicle travels in idling, as made to reduce in the dynamic stiffness of trap frequency point, then make passive Hydraulic Engine Mount can become large in the dynamic stiffness of crest frequency point, cause its anti-vibration performance to be deteriorated, cannot effectively decay to the vibration that motor produces, the vibration passing to vehicle body becomes large, increases the resonance noise in passenger compartment, the travelling comfort affecting vehicle drive and take.
Summary of the invention
The object of the invention is to overcome traditional typical Hydraulic Engine Mount when reducing the dynamic stiffness of trap frequency point, large problem can be become in the dynamic stiffness of crest frequency point, a kind of a kind of passive Hydraulic Engine Mount with equivalent mechanical structure that can carry out vibration damping and vibration isolation to the vibration in motor low frequency region is better provided.
In order to achieve the above object, the present invention adopts following technological scheme:
There is a passive Hydraulic Engine Mount for equivalent mechanical structure, the dynamic vibration absorber comprising upper liquid chamber, lower liquid chamber, outside air chamber, interior air chamber, up and down liquid chamber dividing plate and be made up of contained spring and mass block; From outer layers towards inner layers, be the upper liquid chamber of the upper-end surface abutting against upper and lower liquid chamber dividing plate respectively, outside air chamber and interior air chamber successively; Dynamic vibration absorber is positioned at air chamber; Lower liquid chamber abuts against the lower end surface of upper and lower liquid chamber dividing plate; The inertia channel be communicated with lower liquid chamber by upper liquid chamber is provided with in upper and lower liquid chamber dividing plate.
After adopting this structure, when motor works under idling operation, produce low-frequency vibration, liquid in upper liquid chamber and lower liquid chamber is flowed back and forth by inertia channel (also claiming low frequency vibration damping passage), increase resistance coefficient, improve vibration absorption ability, play the object of vibration damping.When arranging the suitable parameters of contained spring and mass block, in inertia channel, liquid reaches resonance frequency range vicinity, make the dynamic vibration absorber work that contained spring and mass block form, the power that contained spring and mass block produce and exciting force reverse, can make to reduce in the dynamic stiffness of trap frequency point Hydraulic Engine Mount, and be reduced in the dynamic stiffness of crest frequency point Hydraulic Engine Mount, the vibration that motor of can decaying to a greater extent produces, reduce the vibration passing to vehicle frame, reduce the noise in passenger compartment, the travelling comfort improving vehicle drive and take.
There is a passive Hydraulic Engine Mount for equivalent mechanical structure, comprise connecting bolt, outside rubber spring, closed supports, the main spring of inner rubber, elastomer diaphragm, lower end cap and lower construction bolt; The main spring of outside rubber spring, closed supports and inner rubber sets gradually from outer layers towards inner layers, and is fixed on the upper-end surface of upper and lower liquid chamber dividing plate respectively by sulfuration; The upper end of the outside inner side of rubber spring, the outside of closed supports and liquid chamber dividing plate up and down surrounds upper liquid chamber, and the main spring of closed supports, inner rubber and up and down liquid chamber dividing plate surround outside air chamber, and the main spring of inner rubber and upper and lower liquid chamber dividing plate surround interior air chamber; Elastomer diaphragm is fixed on the lower end surface of upper and lower liquid chamber dividing plate, and surrounds lower liquid chamber with upper and lower liquid chamber dividing plate; On upper connecting bolt rubber spring mounted externally, and upper connecting bolt is connected with closed supports by external bracing spring; Lower end cap is fastened on the periphery of elastomer diaphragm, and lower construction bolt is fixedly connected with lower end cap.After adopting this structure, outside rubber spring adopts elastic rubber material, plays supporting engines assembly and provides the effect of frictional damping.Be full of liquid in upper and lower liquid chamber, liquid flows back and forth and produces additional damping in inertia channel, plays the effect of dynamic vibration absorber.The power produced when it is contrary with the direction of exciting force, suitably can reduce the value of dynamic stiffness, the transmission of vibration can be made like this to reduce, and increases the effect of vibration damping.The effect of elastomer diaphragm, one is be convenient to form lower liquid chamber, and two is the characteristics utilizing rubber elasticity deformation, with decay engine operation time the vibration that produces, realize reducing the object that the impact of engine luggine and isolation are delivered to cabin noise by bus.
Closed supports comprises: spring seat, dividing plate and supporting frame; Spring seat is fixed on the top of dividing plate, and dividing plate is fixed on the top of supporting frame; Upper connecting bolt is arranged on the top of spring seat, is provided with external bracing spring between the lower end of upper connecting bolt and spring seat.After adopting this structure, namely spring seat is installed on supporting frame by membrane support, the weight of external bracing spring and outside rubber spring common support power assembly, thus the wall thickness of outside rubber spring can do thinner, change the volume rigidity of upper liquid chamber; The change of upper liquid chamber volume rigidity can change the dynamic stiffness of Hydraulic Engine Mount crest frequency point; External bracing spring also can increase the support to power assembly further, while raising supports, also enhances effectiveness in vibration suppression, and can improve fatigue behaviour and the croop property of Hydraulic Engine Mount.
The upper end of the main spring of inner rubber is connected with the lower end of dividing plate; The main spring of dividing plate, supporting frame, inner rubber and up and down liquid chamber dividing plate surround outside air chamber.After adopting this structure, in outside air chamber, being full of air, because air has compressibility, when being subject to impact force, the effect of pneumatic spring can being served as, reduce the vibration of power assembly.
In dynamic vibration absorber, the upper end of contained spring connects with the main spring of inner rubber and dividing plate, and mass block hanging is in the lower end of contained spring.After adopting this structure, within the scope of certain frequency, the direction of the power that contained spring produces is contrary with the direction of exciting force, can reduce the value of dynamic stiffness, the transmission of vibration can be made like this to reduce, and increases effectiveness in vibration suppression, improves the travelling comfort of passenger in cabin of riding.
The upper end open of lower end cap is provided with aduncate flanging; The lower end of outside rubber spring is provided with the outward extending top edge of upper and lower liquid chamber dividing plate of fitting, and the upper end of elastomer diaphragm is provided with the outward extending lower limb of upper and lower liquid chamber dividing plate of fitting; Top edge, up and down liquid chamber dividing plate and lower limb wrap up and compress by flanging.After adopting this structure, first, outside rubber spring, up and down liquid chamber dividing plate and elastomer diaphragm can be combined closely by lower end cap; Secondly, air chamber can be formed between lower end cap and elastomer diaphragm, for the space of elastomer diaphragm distortion; Finally, lower end cap well can be protected internals.
Lower end cap is provided with vent.After adopting this structure, the air chamber that lower end and the lower end cap of elastomer diaphragm are formed is connected with air by vent, is more conducive to the distortion of elastomer diaphragm.
Inertia channel in the horizontal plane be projected as spirality; One end of inertia channel is communicated with upper liquid chamber, and the other end is communicated with lower liquid chamber.After adopting this structure, inertia channel has longer flow distance, but inertia channel is not limited to spirality, also can adopt other flow channel shape.
The shape of cross section of inertia channel is circular or square; The opening of inertia channel is provided with lead angle.After adopting this structure, be conducive to liquid turnover inertia channel.
Upper liquid chamber and lower liquid chamber are built with ethylene glycol liquid.After adopting this structure, effectively can improve the effectiveness in vibration suppression of whole Hydraulic Engine Mount.The reasonable liquid of other flow stability can be encapsulated in upper liquid chamber and lower liquid chamber, in order to make liquid be subject under vibration exciting force can be reliable in spirality inertia channel, stable flowing.
Generally speaking, tool of the present invention has the following advantages:
1, utilize the elastic deformation characteristic of component, the vibration produced during decay engine operation, thus reach the object of shock-absorption sound-insulation.
2, in the upper liquid chamber of Hydraulic Engine Mount, add external bracing spring, which raises the support performance of Hydraulic Engine Mount, also play the effect of vibration damping simultaneously, and fatigue behaviour and the croop property of Hydraulic Engine Mount can be improved.
3, adopt spiral inertia channel, increase the resistance coefficient of liquid, improve the vibration absorption ability of Hydraulic Engine Mount, add shock attenuation result.
4, the interior air chamber of the main spring of the inner rubber of Hydraulic Engine Mount is provided with the dynamic vibration absorber be made up of contained spring and mass block, in resonance frequency range, the transferring energy of vibration can be made to reduce, and increases effectiveness in vibration suppression, improves the travelling comfort of passenger in cabin of riding.
5, this Hydraulic Engine Mount can, when reducing trap frequency point dynamic stiffness, make the dynamic stiffness of crest frequency point reduce simultaneously.Reduce the transmission of vibration, increase effectiveness in vibration suppression.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the passive Hydraulic Engine Mount of equivalent mechanical structure.
Fig. 2 is the structural representation of external bracing spring.
Fig. 3 is the structural representation of inertia channel.
Fig. 4 is the structural representation of dynamic vibration absorber.；
Reference character:
1, upper connecting bolt; 2, external bracing spring; 3, spring seat; 4, dividing plate; 5, supporting frame; 6, outside air chamber; 7, inertia channel; 8, lower liquid chamber; 9, elastomer diaphragm; 10, vent; 11, lower construction bolt; 12, lower end cap; 13, upper and lower liquid chamber dividing plate; 14, mass block; 15, the main spring of inner rubber; 16, contained spring; 17, upper liquid chamber; 18, outside rubber spring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
A kind of passive Hydraulic Engine Mount with equivalent mechanical structure can be applicable to motor, as vibration damping equipment, be connected between motor and car body, wherein go up connecting bolt to be connected with motor, lower construction bolt is connected with body, like this in engine working process, the passive Hydraulic Engine Mount with equivalent mechanical structure is connected between the motor of vehicle and vehicle frame as the vibration damping equipment of vehicle, can isolate the vibration of motor, reduce the vibration passing to vehicle body, reduce the resonance noise in passenger compartment, the travelling comfort improving vehicle drive and take.
A kind of passive Hydraulic Engine Mount with equivalent mechanical structure comprises: the outside rubber spring of upper connecting bolt, external bracing spring, closed supports (containing spring seat, dividing plate, supporting frame), the main spring of inner rubber, contained spring and mass block, up and down liquid chamber dividing plate, elastomer diaphragm, lower end cap and lower construction bolt.
The neutral position, upper end of upper connecting bolt rubber spring mounted externally, and the lower end of upper connecting bolt and outside rubber spring and external bracing spring interface.Upper connecting bolt is in the neutral position of spring seat, and the lower termination bottom of external bracing spring is discoidal spring seat.
Upper and lower liquid chamber dividing plate entirety is discoid, and inside is provided with spiral inertia channel, and the cross section of inertia channel is square.The top of one end of inertia channel is provided with the opening be communicated with upper liquid chamber, and the bottom of the other end is provided with the opening be communicated with lower liquid chamber.The edge of the opening of inertia channel is provided with the lead angle that radius is 5mm, also can adopt the chamfering of other sizes.The sectional shape of inertia channel can be circle, also can adopt other sectional shape.During making, adopt upper and lower two runner plates to mode form spiral inertia channel, concrete, the surface of dirty guidance tape is provided with spiral groove, after making itself and upper reaches guidance tape fit, spiral inertia runner can be formed.Liquid under a certain pressure, can free-flow between upper and lower liquid chamber.It is more stable that spiral inertia channel can make liquid flow in runner.Those skilled in the art to the understanding of inertia channel can be, above-mentioned spirality inertia channel refers to have comparatively small flow radius, and there is the liquid flow path of longer flow distance, but it must be spiral that spirality inertia channel of the present invention does not limit to runner, also can adopt other flow channel shape, not limit herein.
Outside rubber spring is the rubber cover body of heavy wall, tips upside down on the upper surface of upper and lower liquid chamber dividing plate.The spring seat of round bottom embeds in dividing plate, and dividing plate snaps in supporting base, and three forms the closed supports of a cover body shape jointly, tips upside down on the upper surface of upper and lower liquid chamber dividing plate.The main spring of inner rubber becomes cover body shape to tip upside down on the upper surface of upper and lower liquid chamber dividing plate, and the lower end of dividing plate is withstood in its upper end.Elastomer diaphragm is upwards fastened on the lower surface of upper and lower liquid chamber dividing plate.
The main spring of outside rubber spring, closed supports and inner rubber sets gradually from outer layers towards inner layers, and is separately fixed at the upper-end surface of upper and lower liquid chamber dividing plate; Outside rubber spring, closed supports and upper and lower liquid chamber dividing plate surround upper liquid chamber, and the main spring of inner rubber and upper and lower liquid chamber dividing plate surround the interior air chamber of air in addition.Elastomer diaphragm and upper and lower liquid chamber dividing plate surround lower liquid chamber.The main spring of dividing plate, supporting frame, inner rubber and up and down liquid chamber dividing plate surround the outside air chamber containing air.
Lower end cap is also upwards fastened on elastomer diaphragm periphery in cover body shape forms an air chamber, and lower construction bolt is fixed on the center of the lower end of lower end cap.The upper end open of lower end cap is provided with aduncate flanging; The lower end of outside rubber spring is provided with the outward extending top edge of upper and lower liquid chamber dividing plate of fitting, and the upper end of elastomer diaphragm is provided with the outward extending lower limb of upper and lower liquid chamber dividing plate of fitting; Top edge, up and down liquid chamber dividing plate and lower limb wrap up and compress by flanging.Lower end cap lower end is provided with vent, thus air chamber is communicated with air.
Upper liquid chamber and lower liquid chamber are built with ethylene glycol liquid.
Interior plenum interior is provided with the dynamic vibration absorber be made up of contained spring and mass block.The upper end of contained spring connects with the lower end of the main spring of inner rubber and dividing plate, and the lower end of contained spring is hung with mass block.Air is full of in the interior air chamber that the main spring of inner rubber and upper and lower liquid chamber dividing plate are formed, be conducive to mass block to move up and down when being subject to vibration exciting force, the power that motion is produced and vibration exciting force reverse, can the peak value dynamic stiffness of Hydraulic Engine Mount be made at trap frequency point place to reduce, improve the effectiveness in vibration suppression of whole Hydraulic Engine Mount device.
Above-described embodiment is the present invention's preferably mode of execution; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. there is a passive Hydraulic Engine Mount for equivalent mechanical structure, it is characterized in that: the dynamic vibration absorber comprising upper liquid chamber, lower liquid chamber, outside air chamber, interior air chamber, up and down liquid chamber dividing plate and be made up of contained spring and mass block; From outer layers towards inner layers, be the upper liquid chamber of the upper-end surface abutting against upper and lower liquid chamber dividing plate respectively, outside air chamber and interior air chamber successively; Dynamic vibration absorber is positioned at air chamber;
Lower liquid chamber abuts against the lower end surface of upper and lower liquid chamber dividing plate;
The inertia channel be communicated with lower liquid chamber by upper liquid chamber is provided with in upper and lower liquid chamber dividing plate.
2. according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 1, it is characterized in that: it comprises connecting bolt, outside rubber spring, closed supports, the main spring of inner rubber, elastomer diaphragm, lower end cap and lower construction bolt;
The main spring of outside rubber spring, closed supports and inner rubber sets gradually from outer layers towards inner layers, and is fixed on the upper-end surface of upper and lower liquid chamber dividing plate respectively by sulfuration; The upper end of the outside inner side of rubber spring, the outside of closed supports and liquid chamber dividing plate up and down surrounds upper liquid chamber, and the main spring of closed supports, inner rubber and up and down liquid chamber dividing plate surround outside air chamber, and the main spring of inner rubber and upper and lower liquid chamber dividing plate surround interior air chamber;
Elastomer diaphragm is fixed on the lower end surface of upper and lower liquid chamber dividing plate, and surrounds lower liquid chamber with upper and lower liquid chamber dividing plate;
On upper connecting bolt rubber spring mounted externally, and upper connecting bolt is connected with closed supports by external bracing spring;
Lower end cap is fastened on the periphery of elastomer diaphragm, and lower construction bolt is fixedly connected with lower end cap.
3., according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 2, it is characterized in that: described closed supports comprises: spring seat, dividing plate and supporting frame; Spring seat is fixed on the top of dividing plate, and dividing plate is fixed on the top of supporting frame; Upper connecting bolt is arranged on the top of spring seat, is provided with external bracing spring between the lower end of upper connecting bolt and spring seat.
4., according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 3, it is characterized in that: the upper end of the main spring of described inner rubber is connected with the lower end of dividing plate; The main spring of dividing plate, supporting frame, inner rubber and up and down liquid chamber dividing plate surround outside air chamber.
5. according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 3, it is characterized in that: in described dynamic vibration absorber, the upper end of contained spring connects with the main spring of inner rubber and dividing plate, and mass block hanging is in the lower end of contained spring.
6., according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 2, it is characterized in that: the upper end open of described lower end cap is provided with aduncate flanging; The lower end of outside rubber spring is provided with the outward extending top edge of upper and lower liquid chamber dividing plate of fitting, and the upper end of elastomer diaphragm is provided with the outward extending lower limb of upper and lower liquid chamber dividing plate of fitting; Top edge, up and down liquid chamber dividing plate and lower limb wrap up and compress by flanging.
7., according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 6, it is characterized in that: described lower end cap is provided with vent.
8., according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 1, it is characterized in that: described inertia channel in the horizontal plane be projected as spirality; One end of inertia channel is communicated with upper liquid chamber, and the other end is communicated with lower liquid chamber.
9. according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 8, it is characterized in that: the shape of cross section of described inertia channel is for circular or square; The opening of inertia channel is provided with lead angle.
10. according to a kind of passive Hydraulic Engine Mount with equivalent mechanical structure according to claim 1, it is characterized in that: described upper liquid chamber and lower liquid chamber are built with ethylene glycol liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310704157.8A CN103671686B (en) | 2013-12-19 | 2013-12-19 | Passive fluidic resistor suspension with equivalent mechanical structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310704157.8A CN103671686B (en) | 2013-12-19 | 2013-12-19 | Passive fluidic resistor suspension with equivalent mechanical structure |
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| CN103671686A CN103671686A (en) | 2014-03-26 |
| CN103671686B true CN103671686B (en) | 2015-07-01 |
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| CN201310704157.8A Expired - Fee Related CN103671686B (en) | 2013-12-19 | 2013-12-19 | Passive fluidic resistor suspension with equivalent mechanical structure |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106372361A (en) * | 2016-09-23 | 2017-02-01 | 河海大学常州校区 | Method for calculating volume stiffness of hydro-elastic mount liquid feeding chamber based on finite element |
| CN108099574B (en) * | 2017-12-21 | 2023-08-22 | 柳州铁道职业技术学院 | Suspension vibration-resisting device for motor vehicle |
| CN108501680B (en) * | 2018-05-10 | 2023-08-29 | 浙江零跑科技股份有限公司 | Suspension liquid seal structure |
| CN110103694B (en) * | 2019-04-19 | 2021-02-19 | 浙江吉利控股集团有限公司 | Two-stage vibration isolation hydraulic suspension |
| CN113696708B (en) * | 2021-09-22 | 2023-03-17 | 湖南信息职业技术学院 | Power motor suspension assembly structure for automobile |
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| CN202790302U (en) * | 2012-09-27 | 2013-03-13 | 中船重工海声科技有限公司 | Liquid composite damping vibration isolator |
| CN203641383U (en) * | 2013-12-19 | 2014-06-11 | 华南理工大学 | Passive hydraulically-damped mount having equivalent mechanical structure |
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| JPH08240241A (en) * | 1995-03-03 | 1996-09-17 | Nok Megurasutikku Kk | Liquid enclosing mount |
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