CN104948643A - Piston valve device - Google Patents
Piston valve device Download PDFInfo
- Publication number
- CN104948643A CN104948643A CN201510405273.9A CN201510405273A CN104948643A CN 104948643 A CN104948643 A CN 104948643A CN 201510405273 A CN201510405273 A CN 201510405273A CN 104948643 A CN104948643 A CN 104948643A
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- CN
- China
- Prior art keywords
- central shaft
- ring
- retainer
- spring
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Abstract
The invention discloses a piston valve device. The piston valve device comprises a center shaft, a retainer, a valve body, a compressing deflection disc and a rebounding deflection disc, wherein a first end of the center shaft is connected with one end of a piston rod, and an annular shoulder is arranged in the position, close to the first end, of the peripheral surface of the center shaft; the retainer is fixed at a second end of the center shaft; the valve body is arranged on the center shaft in a sleeving manner and located between the annular shoulder and the retainer, a plurality of fluid channels are formed in the valve body, and a sliding piston is arranged on the peripheral surface of the valve body in a sleeving manner; the compressing deflection disc is arranged on the center shaft in a sleeving manner and located between the annular shoulder and the valve body; the rebounding deflection disc is arranged on the center shaft in a sleeving manner, is located between the retainer and the valve body and seals the fluid channels on the valve body. The piston valve is connected with the piston rod through the center shaft, and parts of the piston valve device can be mounted on the center shaft according to requirements of different types of vehicles for the piston valve device of a vibration damper, so that use requirements of different types of vehicles are met.
Description
Technical field
The present invention relates to automobile absorber field, particularly relate to the piston valve device on a kind of automobile absorber.
Background technique
Usually, during road traveling, the suspension system of vehicle subjects the shape or uneven and impacted or shake due to road surface, and if impact or passenger that vibrations are directly passed in vehicle, passenger will feel uncomfortable.Thus suspension system is provided with vibration damper, alleviates such impact or vibrations, and strengthen the comfort level of driving by producing cushion effect.
Be existing a kind of vibration damper see what provide in Fig. 1, figure, comprise an inner casing 10, in inner casing 10, be configured with the inner chamber 11 that is filled with hydraulic fluid completely; One is arranged on the outer shell 20 outside inner casing 10, forms the exocoel 21 that a part is filled with hydraulic fluid between the internal surface of outer shell 20 and the outer surface of inner casing 10; One cylinder top head 30 and a cylinder bottom 40, cylinder upper cover 30 is arranged on the upper end of inner casing 10 and outer shell 20, for sealing the upper-end surface of inner casing 10 and outer shell 20, cylinder bottom 40 is arranged on the lower end of inner casing 10 and outer shell 20, for sealing the lower end surface of inner casing 10 and outer shell 20; One piston rod 50, one end of piston rod 50 extends in the inner chamber 11 of inner casing 10 through after cylinder upper cover 30, and the other end extends along the outside of outer shell 20; One piston valve device 60, piston valve device 60 slide arrangement is in the inner chamber 11 of inner casing 10 and be connected with one end that piston rod 50 extends in the inner chamber 11 of inner casing 10, and the inner chamber of inner casing 10 is separated into upper inner chamber and lower inner cavity by this piston valve device 60; And a bottom valve 70, bottom valve 70 is arranged on the bottom of the inner chamber 11 of inner casing 10, and the inner chamber 11 of inner casing 10 to be formed with the exocoel 21 of outer shell 20 at the lower position of bottom valve 70 and is communicated with.Piston valve device 60 is under the drive of piston rod 50, to-and-fro motion in the inner chamber 11 of inner casing 10, the hydraulic fluid in inner chamber 11 is forced to flow into lower inner cavity from upper inner chamber by the hole on piston valve device 60 repeatedly, or flow into upper inner chamber from lower inner cavity by the hole piston valve device 60, the perisporium of the hole now on piston valve device 60 and hydraulic fluid produce and rub, form the resistance to vibration, make the vibrational energy of vehicle body change into heat energy.
According to dissimilar vehicle, need to select different piston valve devices, make the factory producing vibration damper have to have the piston valve device of the suspension system being used in different automobile types in a large number, this adds warehousing cost and the cost of production of manufacturer undoubtedly.
For this reason, applicant carried out useful exploration and trial, have found result of the above problems, technological scheme described below produces under this background.
Summary of the invention
Technical problem to be solved by this invention: a kind of piston valve device being applicable to the vibration damper of dissimilar vehicle is provided for the deficiencies in the prior art.
Technical problem solved by the invention can realize by the following technical solutions:
Piston valve device, comprising:
One central shaft, one end that first end and the piston rod of described central shaft extend in inner casing is connected, and the outer circumferential face of described central shaft is provided with an annular shoulder near the position of its first end;
One is fixedly installed on the retainer on the second end of described central shaft;
One to be set on described central shaft and valve body between described annular shoulder and retainer, described valve body is positioned at circumference on the position outside central shaft and is arranged at intervals with the fluid passage of some its both ends of the surface through vertically, the outer circumferential face of described valve body is arranged with a sliding piston, during slip, described sliding piston outer circumferential face coordinate with the inner wall sealing of inner casing;
One to be set on described central shaft and the compression-deflection dish of at least one fluid passage covered on described valve body between described annular shoulder and described valve body, and on described compression-deflection dish, the fluid passage offered on some and described valve body is the first through hole of one-to-one relationship; And
One to be set on described central shaft and the resilience deflexion disk of at least one fluid passage covered on described valve body between described retainer and described valve body, and on described resilience deflexion disk, the fluid passage offered on some and described valve body is the second through hole of one-to-one relationship.
In a preferred embodiment of the invention, the first end of described central shaft offers an installing blind extended vertically, one end that described installing blind extends in inner casing for piston rod when equipped is inserted, and the outer circumferential face that the inwall of the installing blind of described central shaft and this piston rod insert the end of installing blind welds and coordinates, the gap between the opening of the installing blind of described central shaft and the outer circumferential face of piston rod is welded.
In a preferred embodiment of the invention, be arranged with a ring-type retainer and one first spacer ring from top to bottom successively at described central shaft between described annular shoulder and compression-deflection dish, the external diameter of described ring-type retainer equals the diameter of compression-deflection dish.
In a preferred embodiment of the invention, be arranged with one second spacer ring at described central shaft between described annular shoulder and compression-deflection dish, the diameter of described annular shoulder equals the diameter of compression-deflection dish.
In a preferred embodiment of the invention, between described annular shoulder and compression-deflection dish, one first spring retaining sleeve is arranged with at described central shaft, described first spring retaining sleeve is arranged with one first spring, the upper end of described first spring is fixed on the top of the outer circumferential face of described first spring retaining sleeve, and its lower end abutment is on the upper-end surface of described compression-deflection dish.
In a preferred embodiment of the invention, also comprise one second spring and one second spring fitting assembly, described second spring is installed on center shaft and between described resilience deflexion disk and retainer by described second spring fitting assembly, and its upper end is resisted against on the second spring fitting assembly, its lower end abutment is on the upper-end surface of described retainer.
Wherein, described second spring fitting assembly comprises the first tubular guide sleeve and the first ring-shaped baffle, described first tubular guide sleeve to be set on described central shaft and between described resilience deflexion disk and retainer, the lower end of described first tubular guide sleeve is provided with a radial flange, described first ring-type baffle-plate-sleeve is located on described first tubular guide sleeve, the lower end surface of described first ring-shaped baffle is provided with an oriented loop extended towards described radial flange, forms a step surface between the outer ring surface of described oriented loop and the lower end surface of described first ring-shaped baffle; Time equipped, the upper end of described second spring is resisted against on described step surface, and the upper-end surface of described first ring-shaped baffle is resisted against on the lower end surface of described resilience deflexion disk.
Or, described second spring assembly comprises the second tubular guide sleeve and the second ring-shaped baffle, the middle part in the urceolus face of described second tubular guide sleeve is formed with a step, the urceolus face that the urceolus face diameter be positioned at above described step of described second tubular guide sleeve is greater than described second tubular guide sleeve is positioned at the diameter below described step, the urceolus face that described second ring-shaped baffle is set in described second tubular guide sleeve is positioned in the part above described step, and the peripheral region of the upper-end surface of described second ring-shaped baffle is provided with a collar flange; Time equipped, the upper end of described second spring is resisted against on the lower end surface of described second ring-shaped baffle, and the upper-end surface of described second ring-shaped baffle is resisted against on the lower end surface of described resilience deflexion disk.
In a preferred embodiment of the invention, the top of described retainer is rounding mesa-shaped, its underpart is cylindric, the center of described retainer offers the mounting hole of axial its upper and lower end face through, the diameter of the upper-end surface of described retainer equals the diameter of described resilience deflexion disk, is arranged with one the 3rd spacer ring at described central shaft between described retainer and resilience deflexion disk.
Owing to have employed technological scheme as above, beneficial effect of the present invention is: piston valve of the present invention is connected with piston rod by central shaft, and the Component of piston valve device can be installed on center shaft according to the requirement of dissimilar vehicle to the piston valve device of vibration damper, to meet the use of dissimilar vehicle, so just do not need the piston valve device of the suspension system depositing a large amount of different automobile types, significantly reduce warehouse cost and the cost of production of manufacturer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing vibration damper.
Fig. 2 is the structural representation of enforcement 1 of the present invention.
Fig. 3 is the structural representation of enforcement 2 of the present invention.
Fig. 4 is the structural representation of enforcement 3 of the present invention.
Fig. 5 is the structural representation of enforcement 4 of the present invention.
Fig. 6 is the structural representation of enforcement 5 of the present invention.
Fig. 7 is the structural representation of enforcement 6 of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Embodiment 1
Be piston valve device see what provide in Fig. 2, figure, comprise central shaft 100, retainer 200, valve body 300, some compression-deflection dishes 400 and some resilience deflexion disks 500.
The first end 110 of central shaft 100 offers an installing blind extended vertically 111, one end 51 that installing blind 111 extends in inner casing for piston rod 50 is inserted, after piston rod 50 inserts this installing blind 110, weld between the outer circumferential face inwall of the installing blind 111 of central shaft 100 and piston rod 50 being inserted to the end of installing blind 111 and coordinate, in addition the gap between the opening of the installing blind 111 of central shaft 100 and the outer circumferential face of piston rod 50 is also welded, and so just effectively ensure that the stability be connected between central shaft 100 with piston rod 50.
The outer circumferential face of central shaft 100 is provided with an annular shoulder 130 near the position of its second end 120.
Retainer 200 is fixedly installed on the external peripheral surface 121 of the second end 120 of central shaft 100 by immobilization material 210, or retainer 200 is weldingly fixed on the external peripheral surface 121 of the second end 120 of central shaft 100.
Valve body 300 to be set on central shaft 100 and between annular shoulder 130 and retainer 200, valve body 300 is positioned at circumference on the position outside central shaft 100 and is arranged at intervals with some fluid passages 310, the upper and lower end face of each fluid passage 310 through valve body 300 vertically, the outer circumferential face of valve body 300 is arranged with a sliding piston 320, the outer circumferential face of sliding piston 320 coordinates with the inner wall sealing of inner casing, avoids the hydraulic fluid in inner casing to flow through from the gap between sliding piston 320 and inner casing.
Some compression-deflection dishes 400 to be set on central shaft 100 and between annular shoulder 130 and valve body 300, the compression-deflection dish 400 being positioned at below covers the upper shed of the fluid passage 310 of valve body 300, compression-deflection dish 400 offers the through hole (not shown) of fluid passage 310 in one-to-one relationship that be some and valve body 300, or be breach, flow into the upper inner chamber of inner casing to allow the hydraulic fluid of the lower inner cavity being arranged in inner casing via fluid passage 310.
Some resilience deflexion disks 500 to be set on central shaft 100 and between retainer 200 and valve body 300, the compression-deflection dish 400 being positioned at top covers the under shed of the fluid passage 310 of valve body 300, resilience deflexion disk 500 offers the through hole (not shown) of fluid passage 310 in one-to-one relationship that be some and valve body 300, or be breach, with the lower inner cavity allowing the hydraulic fluid of the upper inner chamber being arranged in inner casing to flow into inner casing via fluid passage 310.
Embodiment 2
The structure of the present embodiment is roughly the same with the structure of embodiment 1, and its difference is, see Fig. 3, also comprises one first spring 610,1 second spring 620,1 first spring retaining sleeve 630 and one second spring fitting assembly 640.
First spring retaining sleeve 630 is in a tubular structure, and it is set on central shaft 100 and between annular shoulder 130 and compression-deflection dish 400, the top of the outer circumferential face of the first spring retaining sleeve 630 is provided with a ring-type curve bath 631.First spring 610 is set in the outside of the first spring retaining sleeve 630, and its upper end embeds ring-type curve bath 631 internal fixtion of described first spring retaining sleeve 630, and its lower end abutment is on the upper-end surface of compression-deflection dish 400.
Second spring fitting assembly 640 comprises tubular guide sleeve 641 and ring-shaped baffle 642, tubular guide sleeve 641 to be set on central shaft 100 and between resilience deflexion disk 500 and retainer 200, the lower end of tubular guide sleeve 641 is provided with a radial flange 6411, ring-shaped baffle 642 is set on tubular guide sleeve 641, the lower end surface of ring-shaped baffle 642 is provided with the oriented loop 6421 extended to radial flange 6411 one day, forms a step surface 6422 between the outer ring surface of oriented loop 6421 and the lower end surface of ring-shaped baffle 642.Second spring 620 be set in central shaft 100 outside and between resilience deflexion disk 500 and retainer 200, its upper end is resisted against on the step surface 6422 that formed between the outer ring surface of oriented loop 6421 and the lower end surface of ring-shaped baffle 642, its lower end abutment on the upper-end surface of retainer 200, thus makes the upper-end surface of ring-shaped baffle 642 be resisted against on the lower end surface of resilience deflexion disk 500.
Embodiment 3
The structure of the present embodiment is roughly the same with the structure of embodiment 2, and its difference is, the structure of the second spring fitting assembly 640 in the present embodiment is different.See Fig. 4, second spring assembly 640a comprises tubular guide sleeve 641a and ring-shaped baffle 642a, the middle part in the urceolus face of tubular guide sleeve 641a is formed with a step 6411a, the urceolus face that the urceolus face diameter be positioned at above step 6411a of tubular guide sleeve 641a is greater than tubular guide sleeve 641a is positioned at the diameter below step 6411a, the urceolus face that ring-shaped baffle 642a is set in tubular guide sleeve 641a is positioned in the part above step 6411a, and the peripheral region of the upper-end surface of ring-shaped baffle 642a is provided with a collar flange 6421a.When second spring 620 assembles, second spring 620 to be set on central shaft 100 and between resilience deflexion disk 500 and retainer 200, its upper end is resisted against on the lower end surface of ring-shaped baffle 642a, its lower end abutment, on the upper-end surface of retainer 200, makes the upper-end surface of ring-shaped baffle 642a be resisted against on the lower end surface of resilience deflexion disk 500.
Embodiment 4
The structure of the present embodiment is roughly the same with the structure of embodiment 3, its difference is, see Fig. 5, the piston valve device of the present embodiment does not include the first spring 610 and the first spring retaining sleeve 630, replace, between annular shoulder 130 and compression-deflection dish 400, be arranged with ring-type retainer 710 and a spacer ring 720 from top to bottom successively at central shaft 100, the external diameter of this ring-type retainer 710 equals the diameter of compression-deflection dish 400.
Embodiment 5
The structure of the present embodiment is roughly the same with the structure of embodiment 4, and its difference is, see Fig. 6, the piston valve device of the present embodiment does not include the second spring 620 and the second spring fitting assembly 640a.The top of retainer 200a is rounding mesa-shaped, and its underpart is cylindric, and the center of retainer 200a offers the mounting hole 220a of axial its upper and lower end face through, and the diameter of the upper-end surface 210a of retainer 200a equals the diameter of resilience deflexion disk 500.
Embodiment 6
The structure of the present embodiment is roughly the same with the structure of embodiment, and its difference is, see Fig. 7, the piston valve device of the present embodiment does not include ring-type retainer 710 and spacer ring 720.The diameter of the annular shoulder 130a of the present embodiment equals the diameter of compression-deflection dish 400, is arranged with a spacer ring 730 at central shaft 100 between annular shoulder 130a and compression-deflection dish 400.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (9)
1. piston valve device, is characterized in that, comprising:
One central shaft, one end that first end and the piston rod of described central shaft extend in inner casing is connected, and the outer circumferential face of described central shaft is provided with an annular shoulder near the position of its first end;
One is fixedly installed on the retainer on the second end of described central shaft;
One to be set on described central shaft and valve body between described annular shoulder and retainer, described valve body is positioned at circumference on the position outside central shaft and is arranged at intervals with the fluid passage of some its both ends of the surface through vertically, the outer circumferential face of described valve body is arranged with a sliding piston, during slip, described sliding piston outer circumferential face coordinate with the inner wall sealing of inner casing;
One to be set on described central shaft and the compression-deflection dish of at least one fluid passage covered on described valve body between described annular shoulder and described valve body, and on described compression-deflection dish, the fluid passage offered on some and described valve body is the first through hole of one-to-one relationship; And
One to be set on described central shaft and the resilience deflexion disk of at least one fluid passage covered on described valve body between described retainer and described valve body, and on described resilience deflexion disk, the fluid passage offered on some and described valve body is the second through hole of one-to-one relationship.
2. piston valve device as claimed in claim 1, it is characterized in that, the first end of described central shaft offers an installing blind extended vertically, one end that described installing blind extends in inner casing for piston rod when equipped is inserted, and the outer circumferential face that the inwall of the mounting hole of described central shaft and this piston rod insert the end of mounting hole welds and coordinates, the gap between the opening of the mounting hole of described central shaft and the outer circumferential face of piston rod is welded.
3. piston valve device as claimed in claim 1, it is characterized in that, between described annular shoulder and compression-deflection dish, be arranged with a ring-type retainer and one first spacer ring from top to bottom successively at described central shaft, the external diameter of described ring-type retainer equals the diameter of compression-deflection dish.
4. piston valve device as claimed in claim 1, it is characterized in that, between described annular shoulder and compression-deflection dish, be arranged with one second spacer ring at described central shaft, the diameter of described annular shoulder equals the diameter of compression-deflection dish.
5. piston valve device as claimed in claim 1, it is characterized in that, between described annular shoulder and compression-deflection dish, one first spring retaining sleeve is arranged with at described central shaft, described first spring retaining sleeve is arranged with one first spring, the upper end of described first spring is fixed on the top of the outer circumferential face of described first spring retaining sleeve, and its lower end abutment is on the upper-end surface of described compression-deflection dish.
6. the piston valve device as described in any one of claim 3 to 5, it is characterized in that, also comprise one second spring and one second spring fitting assembly, described second spring is installed on center shaft and between described resilience deflexion disk and retainer by described second spring fitting assembly, and its upper end is resisted against on the second spring fitting assembly, its lower end abutment is on the upper-end surface of described retainer.
7. piston valve device as claimed in claim 6, it is characterized in that, described second spring fitting assembly comprises the first tubular guide sleeve and the first ring-shaped baffle, described first tubular guide sleeve to be set on described central shaft and between described resilience deflexion disk and retainer, the lower end of described first tubular guide sleeve is provided with a radial flange, described first ring-type baffle-plate-sleeve is located on described first tubular guide sleeve, the lower end surface of described first ring-shaped baffle is provided with an oriented loop extended towards described radial flange, a step surface is formed between the outer ring surface of described oriented loop and the lower end surface of described first ring-shaped baffle, time equipped, the upper end of described second spring is resisted against on described step surface, and the upper-end surface of described first ring-shaped baffle is resisted against on the lower end surface of described resilience deflexion disk.
8. piston valve device as claimed in claim 6, it is characterized in that, described second spring assembly comprises the second tubular guide sleeve and the second ring-shaped baffle, the middle part in the urceolus face of described second tubular guide sleeve is formed with a step, the urceolus face that the urceolus face diameter be positioned at above described step of described second tubular guide sleeve is greater than described second tubular guide sleeve is positioned at the diameter below described step, the urceolus face that described second ring-shaped baffle is set in described second tubular guide sleeve is positioned in the part above described step, the peripheral region of the upper-end surface of described second ring-shaped baffle is provided with a collar flange, time equipped, the upper end of described second spring is resisted against on the lower end surface of described second ring-shaped baffle, and the upper-end surface of described second ring-shaped baffle is resisted against on the lower end surface of described resilience deflexion disk.
9. the piston valve device according to any one of claim 3 to 5, it is characterized in that, the top of described retainer is rounding mesa-shaped, its underpart is cylindric, the center of described retainer offers the mounting hole of axial its upper and lower end face through, the diameter of the upper-end surface of described retainer equals the diameter of described resilience deflexion disk, is arranged with one the 3rd spacer ring at described central shaft between described retainer and resilience deflexion disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405273.9A CN104948643A (en) | 2015-07-08 | 2015-07-08 | Piston valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405273.9A CN104948643A (en) | 2015-07-08 | 2015-07-08 | Piston valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948643A true CN104948643A (en) | 2015-09-30 |
Family
ID=54163572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510405273.9A Pending CN104948643A (en) | 2015-07-08 | 2015-07-08 | Piston valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948643A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173535A (en) * | 2019-06-10 | 2019-08-27 | 伯科姆汽车零部件系统(苏州)有限公司 | A kind of frequency self-induction damping adjusting absorber valve assembly |
| CN110709604A (en) * | 2017-06-06 | 2020-01-17 | V·拉比 | Hydraulic piston with valve for maintaining cooling and hydraulic sealing |
| CN117465180A (en) * | 2023-10-31 | 2024-01-30 | 西南交通大学 | Driving experience improvement oriented adjustable negative stiffness air spring assembly and system control method |
-
2015
- 2015-07-08 CN CN201510405273.9A patent/CN104948643A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110709604A (en) * | 2017-06-06 | 2020-01-17 | V·拉比 | Hydraulic piston with valve for maintaining cooling and hydraulic sealing |
| CN110709604B (en) * | 2017-06-06 | 2022-03-15 | V·拉比 | Hydraulic piston with valve for maintaining cooling and hydraulic sealing |
| CN110173535A (en) * | 2019-06-10 | 2019-08-27 | 伯科姆汽车零部件系统(苏州)有限公司 | A kind of frequency self-induction damping adjusting absorber valve assembly |
| CN110173535B (en) * | 2019-06-10 | 2024-04-05 | 伯科姆汽车零部件系统(苏州)有限公司 | Frequency self-induction damping adjustment shock absorber recovery valve assembly |
| CN117465180A (en) * | 2023-10-31 | 2024-01-30 | 西南交通大学 | Driving experience improvement oriented adjustable negative stiffness air spring assembly and system control method |
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Application publication date: 20150930 |
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