CN113251177B - Flow control valve, vehicle suspension shock absorber assembly and vehicle suspension system - Google Patents

Flow control valve, vehicle suspension shock absorber assembly and vehicle suspension system Download PDF

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Publication number
CN113251177B
CN113251177B CN202110723076.7A CN202110723076A CN113251177B CN 113251177 B CN113251177 B CN 113251177B CN 202110723076 A CN202110723076 A CN 202110723076A CN 113251177 B CN113251177 B CN 113251177B
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China
Prior art keywords
valve
oil inlet
oil
flow control
overflow
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CN202110723076.7A
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Chinese (zh)
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CN113251177A (en
Inventor
张勇
秦雪梅
汪军
李国华
侯平
唐兵
王洪涛
邵翀
严茂
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Chengdu Jiuding Technology Group Co Ltd
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Chengdu Jiuding Technology Group Co Ltd
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Publication of CN113251177A publication Critical patent/CN113251177A/en
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    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
    • B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
    • B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
    • 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
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/325—Constructional features of cylinders for attachment of valve units
    • 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
    • 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
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/0624—Lift valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention relates to the technical field of valves and discloses a flow control valve, a vehicle suspension shock absorber assembly and a vehicle suspension system, wherein the flow control valve comprises a valve body assembly, the valve body assembly comprises a main valve body, a plurality of mounting parts are arranged on the main valve body, an oil inlet and an oil outlet which are communicated with the inside of the mounting parts are respectively arranged at the positions of the mounting parts on the main valve body, and a plurality of oil passages which are arranged in parallel are formed by communicating the oil inlet and the corresponding oil outlet; and the high-speed switch valves are respectively arranged in the mounting parts and are in sealing fit with the mounting parts, and the on-off of each oil passage is controlled by controlling the on-off of the high-speed switch valves. The flow control valve has the characteristics of large flow regulation range, high response speed and high flow control precision, and can be applied to different working conditions.

Description

Flow control valve, vehicle suspension shock absorber assembly and vehicle suspension system
Technical Field
The invention relates to the technical field of valves, in particular to a flow control valve, a vehicle suspension shock absorber assembly and a vehicle suspension system.
Background
The high-speed switch valve has the advantages of small volume, low cost, insensitivity to pollution and the like, has higher response speed, can realize the digital control of a computer, is widely applied to the field of hydraulic control, and is an important direction for the development of hydraulic technology.
At present, most passive double-tube hydraulic shock absorbers adopted by vehicle suspension systems on the market have fixed characteristics, provide fixed damping characteristic curves in tension and compression strokes, so that in the adjustment of the dynamic characteristics of a whole vehicle, only a compromise scheme can be found between smoothness and steering stability, and the optimal matching of the comfort and the maneuverability of the vehicle cannot be met. The damping adjusting shock absorber can select damping force adaptive to the current working condition according to the running working condition (road surface condition, braking, acceleration, turning, driver's will and the like) of the whole vehicle so as to restrain vibration of the vehicle body, prevent tires from jumping and keep the vehicle body stable. The damping adjusting shock absorber mainly realizes real-time adjustment of damping in a magnetorheological type control mode, a solenoid valve type control mode, a stepping motor type control mode and the like at present, wherein the solenoid valve control mode is most widely applied in the market with the advantages of reliable performance, relatively low cost, compact structure, high technical maturity and the like, and is widely applied to a high-performance vehicle suspension system.
The common use of these high performance vehicle suspension systems is a solenoid controlled shock absorber, and most of these solenoid controlled adjustable damping shock absorbers are adjusted and controlled by a proportional solenoid valve, which has the following problems in practical applications: 1) the energy consumption is big: the proportional solenoid valve adjusts and controls the damping force by inputting currents with different magnitudes to control the oil flow passing through the proportional solenoid valve so as to output the damping force with different magnitudes and realize the adjustment and control of the damping force. The existing shock absorber mainly adopts an inverse proportion electromagnetic valve, when the input current of the electromagnetic valve is larger, the flow controlled by the electromagnetic valve is larger, the damping force of the shock absorber is smaller, and when the proportion electromagnetic valve is in a failure state, namely the proportion electromagnetic valve is not electrified, the damping force of the shock absorber is in a maximum state. Therefore, in order to keep the comfort and the controllability of the whole vehicle, the proportional solenoid valve in the shock absorber is almost always in a power-on state, and the energy consumption is high; and the automobile is in a normal road running state in most of the time in the daily running process, and the damping force of the shock absorber does not need to be adjusted frequently. 2) The response speed is slow: the signal response time of the proportional solenoid valve is generally more than 5ms, and the response time of the proportional solenoid valve also influences the response time of the damping adjustable shock absorber assembly. 3) The control precision is low: the proportional solenoid valve controls the opening of the valve core by controlling the current change, and the small current change in the adjusting range causes the large opening change of the solenoid valve due to the small adjusting range, so that the control precision of the solenoid valve is low. Thus, the control and performance of the shock absorber assembly and the vehicle suspension system is greatly affected.
Disclosure of Invention
The invention provides a flow control valve, a vehicle suspension shock absorber assembly and a vehicle suspension system aiming at the problems of large energy consumption, low response speed and low control precision of the conventional vehicle suspension system.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a flow control valve comprising:
the valve body assembly comprises a main valve body, a plurality of mounting parts are arranged on the main valve body, oil inlet holes and oil outlet holes communicated with the inside of the mounting parts are respectively arranged at the positions of the mounting parts on the main valve body, and the oil inlet holes and the corresponding oil outlet holes are communicated to form a plurality of oil passages which are arranged in parallel;
and the high-speed switch valves are respectively arranged in the installation parts and are in sealing fit with the installation parts, and the on-off of each oil passage is controlled by controlling the opening and closing of the high-speed switch valves.
In the above technical scheme, further, the oil inlet of the high-speed switch valve is communicated with the oil inlet hole of the corresponding installation part, and the oil outlet of the high-speed switch valve is communicated with the oil outlet hole of the corresponding installation part.
In the above technical solution, further, the mounting part is a cavity structure with an opening at the upper end, the oil inlet and the oil outlet are respectively located at the bottom of the cavity of the mounting part, and the oil outlet is located outside the oil inlet and is arranged close to the inner side wall of the cavity of the mounting part;
threaded connection between high-speed ooff valve and the installation department cavity inside wall, high-speed ooff valve oil inlet place terminal surface and installation department cavity bottom sealing fit, form confined oil pocket between high-speed ooff valve and the installation department in installation department cavity lower part, oil pocket intercommunication high-speed ooff valve's oil-out and oil outlet cross.
In the above technical solution, further, an oil inlet portion is arranged on the main valve body below the mounting portion, and the oil inlet portion forms a cavity structure with an opening at a lower end on the main valve body;
the main valve body is provided with an oil inlet support in the oil inlet portion, a closed oil inlet cavity is formed between the oil inlet support and the main valve body, an oil inlet nozzle is arranged on the oil inlet support, and the oil inlet cavity is communicated with the oil inlet hole and the oil inlet nozzle respectively.
In the above technical scheme, further, an overflow valve assembly is arranged between the oil inlet support and the main valve body;
an overflow oil path is arranged in the overflow valve component and is respectively communicated with the oil inlet nozzle and the oil inlet hole;
the oil inlet support is provided with an overflow port, when the overflow valve assembly is closed, oil entering the oil inlet support from the oil inlet nozzle enters the oil inlet hole through an overflow oil path, and when the overflow valve assembly is opened, part of the oil flows out of the overflow port.
In the technical scheme, the overflow valve assembly comprises a hollow overflow valve body and an overflow valve core, the overflow valve body is arranged in the oil inlet support and is in sealing fit with the inner wall of the cavity of the oil inlet support, the overflow valve core is arranged in the overflow valve body in a matched manner, is in sliding fit connection with the overflow valve body and can axially move along the overflow valve body, an overflow hole is formed in the overflow valve core, and the overflow hole is communicated with the inside of the overflow valve body to form an overflow oil path;
the overflow valve is characterized in that an overflow spring is arranged in the overflow valve body, the overflow spring exerts acting force on an overflow valve core, the overflow valve core is tightly propped against the oil inlet support, sealing fit is formed between one end face of the overflow valve core and the outlet end face of the oil inlet nozzle, the overflow hole is communicated with the oil inlet nozzle, and the overflow port is located at the position of the outlet end face of the oil inlet nozzle.
In the above technical scheme, further, the high-speed switch valve includes a housing, and an actuating assembly, a valve core, and a valve seat that are disposed in the housing, where the valve core is disposed between the actuating assembly and the valve seat, the oil inlet is disposed on the valve seat, the oil outlet is disposed on the housing, and the actuating assembly controls the valve core to move and controls the opening and closing of the oil inlet.
In the above technical solution, further, the valve core is in sliding fit with the housing, so that the valve core can move axially along the housing;
a first spring is arranged between the valve core and the valve seat, one end of the valve core is in contact with the actuating assembly in an initial state, and a certain distance is arranged between the other end of the valve core and an oil inlet on the valve seat;
or a second spring is arranged between the valve core and the actuating assembly, one end of the valve core blocks an oil inlet on the valve seat under the action of the spring force in an initial state, and a certain distance is arranged between the other end of the valve core and the actuating assembly.
In the above technical solution, further, the actuating assembly is an electromagnetic coil assembly disposed on an upper portion of the housing, and when the electromagnetic coil assembly is energized, the driving valve plug moves along an axial direction of the housing.
In the above technical solution, further, the high-speed switching valve includes one or more normally open high-speed switching valves and/or one or more normally closed high-speed switching valves.
In the above technical solution, further, the control flow rate of each high-speed switching valve is increased in multiples.
The invention also provides a vehicle suspension shock absorber assembly which comprises a shock absorber, wherein the shock absorber is provided with a flow control valve, and the flow control valve is used for adjusting the damping force of the shock absorber.
In the above technical solution, further, the shock absorber includes a cylinder assembly;
the cylinder barrel assembly comprises an outer cylinder barrel, an inner cylinder barrel and a working cylinder, the inner cylinder barrel is sleeved on the working cylinder, a middle cavity is formed between the inner cylinder barrel and the working cylinder, a working cavity is formed in the working cylinder, the working cavity is communicated with the middle cavity, and an oil storage cavity is formed between the outer cylinder barrel, the inner cylinder barrel and the working cylinder;
the flow control valve is arranged on the cylinder barrel assembly, an oil inlet hole of the flow control valve is communicated with the middle cavity, and an oil outlet hole of the flow control valve is communicated with the oil storage cavity.
In the technical scheme, furthermore, an installation sleeve communicated with the working cylinder is arranged on the outer cylinder barrel, the flow control valve is arranged in the installation sleeve and is in sealing fit connection with the installation sleeve, a closed oil outlet cavity is formed at the lower part of the installation sleeve, and the oil outlet cavity is respectively communicated with an oil outlet hole and an oil storage cavity of the flow control valve;
and an oil inlet nozzle of the flow control valve extends into the cylinder barrel assembly and is in sealing fit connection with the inner cylinder barrel.
In the above technical solution, further, the high-speed on-off valve of the flow control valve includes one or more normally open type high-speed on-off valves and one or more normally closed type high-speed on-off valves, so that the damping force of the vehicle suspension damper assembly is located in a middle region of a damping force adjustment zone of the vehicle suspension damper assembly when the high-speed on-off valve of the flow control valve is not energized.
The invention further provides a vehicle suspension system which comprises the vehicle suspension shock absorber assembly, and the vehicle suspension shock absorber assembly is respectively arranged at the corresponding positions of the front wheel and the rear wheel of the vehicle. The vehicle suspension system adopting the vehicle suspension shock absorber assembly can well improve the comfort of an automobile.
The invention has the following beneficial effects:
1) the flow control valve integrates a plurality of high-speed switch valves, the control valve has the capability of quick response by utilizing the characteristic of quick response time of the high-speed switch valves, and meanwhile, the plurality of high-speed switch valves adopt a parallel array structure, and the large-range adjustment and control of the oil flow are realized by the on-off control of different high-speed switch valves, so that the requirements of different flow control can be met, and the flow control valve can be suitable for various different use working conditions.
2) The flow control valve has a simple structure and reasonable design, and can be used for controlling a plurality of high-speed switch valves in an integrated manner, so that the functional requirement of the high-speed switch valves on controlling each independent oil way is well met, the miniaturization of the whole structure is well realized, and the industrial application of the control valve is facilitated.
3) The flow control valve can realize the control under a large-range flow and any flow characteristic curve by adopting a plurality of high-speed switch valves, and can greatly improve the flow control precision of the flow control valve by the quick switch control of the plurality of high-speed switch valves.
4) The vehicle suspension shock absorber assembly disclosed by the invention adopts the flow control valve to control the oil flow of the shock absorber, so that the large-range adjustment of the damping force can be realized, the requirements of the shock absorber on the adjustment of the damping force under various different working conditions can be met, and the use performance of the shock absorber can be greatly improved; meanwhile, based on the characteristic that the response time of the flow control valve is short, the quick response to the damping force adjustment can be realized, the response time of the damping adjustment of the shock absorber is reduced, and therefore the comfort of the automobile is improved.
5) According to the vehicle suspension shock absorber assembly, the high-speed switch valve in the flow control valve is arranged, so that the damping force of the shock absorber can be in the middle area of the adjustable range of the shock absorber under the condition that the flow control valve is not electrified, the damping force of the shock absorber is equivalent to the damping force of a conventional passive shock absorber, the shock absorber can meet the shock absorption requirement of an automobile under the normal running working condition, the flow control valve does not need to be frequently switched and controlled under most normal working conditions in the running process of the automobile, the effects of saving energy and reducing consumption can be achieved, and meanwhile the service life of the flow control valve can be effectively prolonged.
6) The flow control valve adopted in the vehicle suspension shock absorber assembly has a large control range and high control precision on the oil flow, so that the precise control on the damping force can be realized, the control precision of the damping force of the shock absorber is improved, and the shock absorber assembly has more excellent service performance.
7) The vehicle suspension system has good comprehensive performance, can meet the requirements of vehicles on high performance and high quality of the suspension system, and can well improve the comfort and the safety of the vehicle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a flow control valve according to an embodiment of the present invention.
Fig. 2 is a top view of a flow control valve according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a main valve body in the flow control valve according to the embodiment of the invention.
FIG. 4 is a top view of a main valve body structure of a flow control valve according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a normally open high-speed switching valve in a flow control valve according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a normally closed high-speed on-off valve in the flow control valve according to the embodiment of the invention.
FIG. 7 is a schematic view of the flow direction of oil in a flow control valve according to an embodiment of the present invention.
FIG. 8 is a schematic structural diagram of a vehicle suspension damper assembly in accordance with an embodiment of the present invention.
Fig. 9 is a schematic sectional view taken along line a-a in fig. 8.
FIG. 10 is a schematic view of the oil flow direction during the extension stroke of a vehicle suspension damper assembly in accordance with an embodiment of the present invention.
Fig. 11 is a partial schematic view of fig. 10 at B.
FIG. 12 is a schematic view of the flow of oil during a compression stroke of a vehicle suspension damper assembly in accordance with an embodiment of the present invention.
In the figure:
100. the hydraulic control valve comprises a flow control valve, 101, a high-speed switch valve, 111, an oil inlet, 112, an oil outlet, 113, a shell, 114, an actuating assembly, 115, a valve core, 116, a valve seat, 117, a first spring, 118, a second spring, 102, a main valve body, 121, a mounting part, 122, an oil inlet hole, 123, an oil outlet hole, 124, an oil inlet part, 103, an oil passing cavity, 104, an oil inlet support, 141, an oil inlet nozzle, 142, an overflow port, 105, an oil inlet cavity, 161, an overflow valve body, 162, an overflow valve core, 163, an overflow hole, 164 and an overflow spring;
201. the oil-saving hydraulic cylinder comprises an outer cylinder barrel 202, an inner cylinder barrel 203, a working cylinder 204, a bottom valve assembly 205, a piston assembly 206, a communication hole 207, an oil storage cavity 208, an intermediate cavity 209, a working cavity 291, a piston upper cavity 292, a piston lower cavity 210, a mounting sleeve 211 and an oil outlet cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Example one
The embodiment provides a flow control valve, which adopts an array structure formed by a plurality of high-speed switch valves arranged in parallel, and can realize large-range adjustment and control on the flow of the flow control valve by on-off control on the high-speed switch valves; more importantly, through carrying out integrated design on a plurality of high-speed switch valves on a valve structure, the flow control of the flow control valve is simpler to realize, the miniaturization of the whole structure of the flow control valve is fully realized, and the control valve has better service performance while the flow control and the control precision of the control valve are ensured.
Referring to fig. 1 and 2, a flow control valve 100 in the present embodiment includes:
the valve body assembly comprises a main valve body 102, a plurality of mounting parts 121 are arranged on the main valve body 102, oil inlet holes 122 and oil outlet holes 123 which are communicated with the inside of the mounting parts are respectively arranged at the positions of the mounting parts on the main valve body 102, and the oil inlet holes 122 and the corresponding oil outlet holes 123 are communicated to form a plurality of oil passages which are arranged in parallel;
and the high-speed switch valves 101 are respectively and correspondingly arranged in the installation parts 121, and the high-speed switch valves 101 are in sealing fit with the installation parts 121 and are used for controlling the on-off of the oil passages. The on-off of each oil passage arranged in parallel is controlled by controlling the opening and closing of the high-speed switch valve, so that the flow of the control valve is adjusted and controlled within a certain range, the control is simple, and the reliability of the whole structure is high.
Specifically, as shown in fig. 3 and 4, the mounting portion 121 on the main valve body 102 is a cavity structure with an open upper end, the oil inlet 122 and the oil outlet 123 are respectively located at the bottom of the cavity of the mounting portion, and the oil outlet 123 is located outside the oil inlet 122 and is close to the inner side wall of the cavity of the mounting portion 121; the high-speed switch valve 101 is in threaded connection with the inner side wall of the cavity of the mounting portion 121, the end face where the oil inlet 111 of the high-speed switch valve is located is in sealing fit with the bottom of the cavity of the mounting portion 121, a closed oil passing cavity 103 is formed between the high-speed switch valve 101 and the mounting portion 121 at the lower portion of the cavity of the mounting portion, and the oil passing cavity 103 is communicated with an oil outlet 112 and an oil outlet 123 of the high-speed switch valve 101; at this time, the oil inlet 111 of the high-speed switch valve is communicated with the oil inlet 122 of the corresponding installation part, the oil outlet 112 of the high-speed switch valve is communicated with the oil outlet 123 of the corresponding installation part, and at this time, on-off control of an oil passage between each oil inlet and each oil outlet can be realized by controlling on-off of the high-speed switch valve. The oil liquid enters the oil inlet of the high-speed switch valve through the oil inlet, and when the oil inlet is opened, the oil liquid enters the oil passing cavity through the oil inlet and the liquid outlet in sequence, and the oil passing cavity is communicated with the oil outlet and is discharged from the oil outlet.
As another embodiment of the present invention, an oil inlet portion 124 is disposed on the main valve body 102 below the mounting portion 121, and the oil inlet portion 124 forms a cavity structure with an opening at the lower end on the main valve body 102; an oil inlet support 104 is arranged in the oil inlet portion 124 of the main valve body 102, a closed oil inlet cavity 105 is formed between the oil inlet support 104 and the main valve body 102, an oil inlet nozzle 141 is arranged on the oil inlet support 104, and the oil inlet cavity 105 is respectively communicated with the oil inlet hole 122 and the oil inlet nozzle 141. Referring to fig. 7, in the operation process of the flow control valve, oil enters the closed oil inlet cavity through the oil inlet nozzle, and because each oil inlet hole is communicated with the oil inlet cavity, the oil can enter each oil inlet hole respectively. Through setting up the oil feed support to make things convenient for the use of flow control valve in corresponding control system, and make flow control valve's overall function structure simpler.
As another embodiment of the present invention, a spill valve assembly is provided between the oil intake support 104 and the main valve body 102; an overflow oil path is arranged in the overflow valve assembly and is respectively communicated with the oil inlet nozzle 141 and the oil inlet hole 122; the oil inlet support 104 is provided with an overflow port 142, when the overflow valve assembly is closed, oil entering the oil inlet support from the oil inlet nozzle 141 enters the oil inlet hole 122 through an overflow oil path, and when the overflow valve assembly is opened, part of the oil flows out from the overflow port 142 to perform an overflow function.
Specifically, the overflow valve assembly comprises a hollow overflow valve body 161 and an overflow valve core 162, wherein the overflow valve body 161 is arranged in the oil inlet support 104 and is in sealing fit with the inner wall of the cavity of the oil inlet support 104, the overflow valve core 162 is arranged in the overflow valve body 161 in a fit manner, is in sliding fit connection with the overflow valve body 161 and can axially move along the overflow valve body 161, an overflow hole 163 is formed in the overflow valve core 162, and the overflow hole 163 is communicated with the inside of the overflow valve body 161 to form an overflow oil path. An overflow spring 164 is arranged in the overflow valve body 161, the overflow spring 164 applies an acting force to the overflow valve core 162 to tightly press the end face of the overflow valve core against the oil inlet support 104, so that a sealing fit is formed between the end face of one end of the overflow valve core 162 and the outlet end face of the oil inlet nozzle 141, the overflow hole 163 is communicated with the oil inlet nozzle 141, and the overflow port 142 is located at the position of the outlet end face of the oil inlet nozzle 141 on the oil inlet support.
An overflow valve component is arranged in the flow control valve, so that the function of protecting the working process of the flow control valve is achieved; when the oil pressure at the oil inlet end is too large and exceeds the spring force of the overflow spring, the oil pushes the overflow valve core away, and at the moment, part of the oil flows out of the overflow port, so that the impact of the oil pressure on the flow control valve can be reduced, and the flow control valve is effectively protected.
Referring to fig. 5 and 6, the high-speed switching valve 101 herein includes a housing 113, and an actuating assembly 114, a valve element 115, and a valve seat 116, which are disposed in the housing, wherein the valve element 115 is disposed between the actuating assembly 114 and the valve seat 116, the oil inlet 111 is disposed on the valve seat 116, the oil outlet 112 is disposed on the housing 113, and the actuating assembly 114 controls the valve element 115 to operate, controls on/off of the oil inlet, and implements on/off control of an oil passage.
Specifically, the valve core 115 is in sliding fit with the housing 113, so that the valve core 115 can move axially along the housing, a closed cavity is formed at the lower part of the housing between the valve core 115 and the housing 113, the valve seat 116 is arranged in the closed cavity, the oil outlet 112 is communicated with the closed cavity, and when the oil inlet 111 on the valve seat 116 is opened, oil enters the closed cavity and flows out from the oil outlet; when the oil inlet 111 on the valve seat 116 is closed, the oil cannot enter the closed cavity, and the high-speed switch valve can play a role in controlling the on-off of the oil. The actuating assembly 114 is a solenoid assembly disposed in an upper portion of the housing 113, and when energized, drives the valve element axially along the housing.
As shown in fig. 5, a first spring 117 is disposed between the valve core 115 and the valve seat 116, and in an initial state, one end of the valve core 115 is in contact with the actuating assembly 114, and the other end of the valve core 115 is spaced from the oil inlet 111 on the valve seat 116; at the moment, the oil inlet on the valve seat is always kept in an open state under the non-electrified state, and when the electromagnetic coil assembly is electrified, the electromagnetic coil assembly controls the valve core to act to close the oil inlet, namely the normally open high-speed switch valve.
As shown in fig. 6, a second spring 118 is disposed between the valve core 115 and the actuating assembly 114, in an initial state, one end of the valve core 115 blocks an oil inlet on the valve seat under the action of a spring force, and a certain distance is disposed between the other end of the valve core 115 and the actuating assembly 114; at the moment, the oil inlet on the valve seat is always in a closed state under the non-electrified state, and when the electromagnetic coil assembly is electrified, the electromagnetic coil assembly controls the valve core to act to open the oil inlet, namely the normally closed high-speed switch valve.
In the flow control valve of this embodiment, the plurality of high-speed on-off valves 101 include one or more normally-open high-speed on-off valves and one or more normally-closed high-speed on-off valves, or include a plurality of normally-open high-speed on-off valves, or include a plurality of normally-closed high-speed on-off valves, and different configuration modes can be adopted according to different working condition requirements, so as to meet different functional requirements.
Through setting up a plurality of high-speed ooff valves, carry out on-off control to a plurality of high-speed ooff valves, regulation, the control flow of expanded control valve to the control of flow this moment is irrelevant with control current's size, and a plurality of high-speed ooff valves parallel control, can effectively improve the control accuracy of control valve like this, and its control accuracy can not receive the influence of electric current, and it is more convenient to control.
As a further improved embodiment, the control flow of each high-speed on-off valve 101 in the flow control valve is increased by multiple times, so that the flow regulation range of the flow control valve can be further expanded.
Taking the flow control valve with four high-speed switching valves in this embodiment as an example, if the control flow between the high-speed switching valves is increased by multiple, for example, when the control flow is increased by 2 times, the control flow of each high-speed switching valve is 2L/min, 4L/min, 8L/min, and 16L/min, at this time, when the four high-speed switching valves are switched in on-off states, 16 groups of different flow states can be realized, and at this time, the flow regulation range of the flow control valve is 0 to 30L/min, so that the flow regulation range of the flow control valve is expanded under the condition of realizing different flow controls.
The high-speed switch valve adopted by the flow control valve in the embodiment of the invention adopts the electromagnetic coil component to realize switch control, and the response time of the high-speed switch valve is within 1ms, so that the response time of the flow control valve can reach within 1ms, and the control response speed of the high-speed switch valve is greatly improved.
Example two
The present embodiment is a vehicle suspension damper assembly, which includes a damper, and a flow control valve is disposed on the damper, and the flow of the flow control valve is controlled to adjust the damping force of the damper. The flow control valve in the first embodiment is adopted, and the adjustment and control of the damping force of the shock absorber are realized through the large-range and high-precision arbitrary adjustment and control of the oil flow by the flow control valve; based on the above-mentioned properties of the flow control valve, the shock absorber adopting the flow control valve has great improvement and advantages in the adjustment range and control accuracy of the damping force compared with the prior art. The following is further described with reference to the specific structure thereof:
referring to fig. 8 and 9, the shock absorber in the present embodiment includes a cylinder assembly, a flow control valve, and shock absorber related conventional functional components such as a base valve component 204 and a piston component 205 which are arranged in the cylinder assembly, wherein the flow control valve is arranged on the cylinder assembly, and the magnitude of the damping force of the shock absorber assembly of the vehicle suspension is adjusted and controlled by controlling the flow control valve.
The cylinder assembly comprises an outer cylinder 201, an inner cylinder 202 and a working cylinder 203, wherein the inner cylinder 202 is sleeved on the working cylinder 203, an intermediate cavity 208 is formed between the inner cylinder 202 and the working cylinder 203, a working cavity 209 is formed in the working cylinder 203, the working cavity 209 is communicated with the intermediate cavity 208 through a communicating hole 206, and an oil storage cavity 207 is formed between the outer cylinder 201 and the inner cylinder 202 as well as between the outer cylinder 201 and the working cylinder 203; the oil inlet hole 122 of the flow control valve 100 is communicated with the middle cavity 208, the oil outlet hole 123 of the flow control valve 100 is communicated with the oil storage cavity 207, so that the control and adjustment of the flow of oil liquid flowing among the oil storage cavity, the middle cavity and the flow control valve are realized, and the control and adjustment of the damping force of the shock absorber are realized.
Specifically, the outer cylinder 201 is provided with a mounting sleeve 210 communicated with the working cylinder, the flow control valve 100 is arranged in the mounting sleeve 210 and is in sealing fit connection with the mounting sleeve 210, the flow control valve 100 is in threaded connection with the mounting sleeve 210, and the flow control valve 100 is fixedly mounted on the shock absorber; an enclosed oil outlet cavity 211 is formed between the flow control valve 100 and the mounting sleeve 210 at the lower part of the mounting sleeve, and the oil outlet cavity 211 is respectively communicated with the oil outlet hole 123 and the oil storage cavity 207 of the flow control valve. At this time, the oil inlet 141 of the flow control valve 100 extends into the inner cylinder 202 and is connected with the inner cylinder 202 in a sealing fit manner, so that the flow control valve is connected and installed on the shock absorber cylinder assembly.
The operation of the vehicle suspension damper assembly is described below with reference to the accompanying drawings:
as shown in fig. 10 and 11, during the extension stroke of the shock absorber; the piston rod of the piston assembly 205 is extended outward, the pressure of the piston upper chamber 291 (the right chamber in the drawing) in the cylinder 203 increases, and the oil in the piston upper chamber 291 flows into the intermediate chamber 208 through the communication hole 206 between the cylinder and the inner cylinder; at this time, when the high-speed switching valve 101 of the flow rate control valve 100 is in the open state, a part of the oil flows into the reservoir chamber 207 through the flow rate control valve 100, and a part of the oil opens the restoring valve of the piston assembly 205 and flows into the lower piston chamber 292 (left chamber in the drawing) of the working chamber.
In the process, the adjustment of the tensile force of the shock absorber can be controlled by the oil flow flowing through the flow control valve, the oil flow of the flow control valve and the tensile damping force of the shock absorber are in an inverse proportion relation, namely the larger the oil flow of the flow control valve is, the smaller the tensile damping force of the shock absorber is, and the larger the oil flow of the flow control valve is, the smaller the tensile damping force of the shock absorber is. When the high-speed switch valve of the flow control valve is completely closed, the oil in the upper cavity is completely discharged to the lower cavity of the piston through the recovery valve of the piston assembly, and the shock absorber at the moment is equivalent to a conventional passive shock absorber; when the high-speed switch valve of the flow control valve is fully opened, the damping force of the shock absorber is minimum at the moment.
FIG. 12, during the compression stroke of the shock absorber; the piston rod of the piston assembly 205 moves inwards in a compression mode, the volume of the lower piston cavity 292 in the working cylinder is reduced, the pressure is increased, one part of oil in the lower piston cavity 292 opens the compression valve of the bottom valve assembly 204 and flows into the oil storage cavity 207, the other part of oil opens the flow valve on the piston assembly 205 and flows to the upper piston cavity 292 and flows into the middle cavity 208 through the communication hole 206 between the working cylinder and the inner cylinder barrel; at this time, when the high-speed switching valve in the flow control valve is in an open state, the oil liquid flowing into the intermediate chamber enters the flow control valve and flows into the oil storage chamber through the flow control valve.
Similarly, the adjustment of the magnitude of the compression force of the shock absorber in the process can be controlled by the oil flow passing through the flow control valve, and the oil flow of the flow control valve is in inverse proportion to the magnitude of the compression damping force of the shock absorber.
The flow of the flow control valve is adjusted by controlling the on-off state of the high-speed switch valve on the flow control valve, so that the adjustment and control of the damping force of the shock absorber are realized.
The high-speed switch valve 101 of the flow control valve 100 comprises one or more normally open high-speed switch valves and one or more normally closed high-speed switch valves, so that the damping force of the vehicle suspension shock absorber assembly is located in the middle area of the damping force adjusting interval of the vehicle suspension shock absorber assembly under the condition that the high-speed switch valve in the flow control valve is not electrified. Taking the flow control valve adopted by the shock absorber in this embodiment as an example, when the flow control valve adopts four high-speed switching valves for control and the flow of each high-speed switching valve is the same, two normally-open high-speed switching valves and two normally-closed high-speed switching valves are adopted for combination; when the current is not supplied, the control flow of the flow control valve is 1/2 of the control flow interval, and the damping force of the vehicle suspension shock absorber assembly is just positioned in the middle area of the damping force adjusting interval. The advantage of adopting this kind of mode of setting lies in, because the car is in the normal highway section of going in the in-process most, is in normal driving state, like this shock absorber assembly is in the actual working process when flow control valve is under the state of not switching on, the damping force of shock absorber is located the middle zone of its regulatory range, the required damping force scope when the vehicle is normally gone for the car need not carry out frequent on-off control to flow control valve in most normal driving process, just can satisfy its operation requirement, thereby can reach fine energy saving and consumption reduction effect, and improve the life of flow control valve and shock absorber.
EXAMPLE III
The present embodiment is a vehicle suspension system, including the vehicle suspension damper assemblies in the above embodiments, which are respectively disposed at the positions corresponding to the front wheel and the rear wheel of the vehicle. Based on the performance of the vehicle suspension shock absorber assembly controlled by flow control, the vehicle suspension system adopting the vehicle suspension shock absorber assembly has good comprehensive performance, can well improve the comfort and the safety of an automobile, and can meet the requirements of the vehicle on the high performance and the high quality of the suspension system.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used herein refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of the present invention are used, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (16)

1. A flow control valve for a vehicle suspension damper assembly comprising:
the valve body assembly comprises a main valve body, a plurality of mounting parts are arranged on the main valve body, oil inlet holes and oil outlet holes communicated with the inside of the mounting parts are respectively arranged at the positions of the mounting parts on the main valve body, and the oil inlet holes and the corresponding oil outlet holes are communicated to form a plurality of oil passages which are arranged in parallel;
and the high-speed switch valves are respectively arranged in the installation parts and are in sealing fit with the installation parts, and the on-off of each oil passage is controlled by controlling the opening and closing of the high-speed switch valves.
2. The flow control valve for a vehicle suspension damper assembly as claimed in claim 1, wherein the oil inlet of said high speed on-off valve is communicated with the oil inlet hole of the corresponding mounting portion, and the oil outlet of said high speed on-off valve is communicated with the oil outlet hole of the corresponding mounting portion.
3. The flow control valve for a vehicle suspension damper assembly as claimed in claim 2, wherein said mounting portion is a cavity structure with an open upper end, said oil inlet hole and said oil outlet hole are respectively located at the bottom of the mounting portion cavity, said oil outlet hole is located outside the oil inlet hole and is close to the inner side wall of the mounting portion cavity;
threaded connection between high-speed ooff valve and the installation department cavity inside wall, high-speed ooff valve oil inlet place terminal surface and installation department cavity bottom sealing fit, form confined oil pocket between high-speed ooff valve and the installation department in installation department cavity lower part, oil pocket intercommunication high-speed ooff valve's oil-out and oil outlet cross.
4. A flow control valve for a vehicle suspension damper assembly as claimed in claim 2 or 3, wherein an oil inlet portion is provided on said main valve body below said mounting portion, said oil inlet portion forming a cavity structure on the main valve body open at a lower end;
the main valve body is provided with an oil inlet support in the oil inlet portion, a closed oil inlet cavity is formed between the oil inlet support and the main valve body, an oil inlet nozzle is arranged on the oil inlet support, and the oil inlet cavity is communicated with the oil inlet hole and the oil inlet nozzle respectively.
5. The flow control valve for a vehicle suspension damper assembly as in claim 4, wherein a relief valve assembly is disposed between said oil inlet support and said main valve body;
an overflow oil path is arranged in the overflow valve component and is respectively communicated with the oil inlet nozzle and the oil inlet hole;
the oil inlet support is provided with an overflow port, when the overflow valve assembly is closed, oil entering the oil inlet support from the oil inlet nozzle enters the oil inlet hole through an overflow oil path, and when the overflow valve assembly is opened, part of the oil flows out of the overflow port.
6. The flow control valve for a vehicle suspension damper assembly as in claim 5, wherein the overflow valve assembly comprises a hollow overflow valve body and an overflow valve core, the overflow valve body is disposed in the oil inlet support and is in sealing fit with the inner wall of the cavity of the oil inlet support, the overflow valve core is disposed in the overflow valve body in a fit manner, is in sliding fit connection with the overflow valve body and can move axially along the overflow valve body, the overflow valve core is provided with an overflow hole, and the overflow hole is communicated with the inside of the overflow valve body to form an overflow oil path;
the overflow valve is characterized in that an overflow spring is arranged in the overflow valve body, the overflow spring exerts acting force on an overflow valve core, the overflow valve core is tightly propped against the oil inlet support, sealing fit is formed between one end face of the overflow valve core and the outlet end face of the oil inlet nozzle, the overflow hole is communicated with the oil inlet nozzle, and the overflow port is located at the position of the outlet end face of the oil inlet nozzle.
7. The flow control valve for a vehicle suspension damper assembly as recited in claim 2, wherein said high speed switch valve comprises a housing, and an actuating member, a valve element and a valve seat disposed in said housing, said valve element being disposed between said actuating member and said valve seat, said oil inlet being disposed on said valve seat, said oil outlet being disposed on said housing, said actuating member controlling the operation of said valve element and controlling the opening and closing of said oil inlet.
8. The flow control valve for a vehicle suspension damper assembly as in claim 7, wherein said spool is slidably engaged with said housing such that said spool is axially movable along said housing;
a first spring is arranged between the valve core and the valve seat, one end of the valve core is in contact with the actuating assembly in an initial state, and a certain distance is arranged between the other end of the valve core and an oil inlet on the valve seat;
or a second spring is arranged between the valve core and the actuating assembly, one end of the valve core blocks an oil inlet on the valve seat under the action of the spring force in an initial state, and a certain distance is arranged between the other end of the valve core and the actuating assembly.
9. The flow control valve for a vehicle suspension damper assembly as in claim 7 or 8, wherein said actuator member is a solenoid assembly disposed in an upper portion of said housing, said solenoid assembly, when energized, driving said spool in axial movement along said housing.
10. The flow control valve for a vehicle suspension damper assembly as in claim 1 or 7, wherein said high speed switching valve comprises one or more normally open type high speed switching valves and/or one or more normally closed type high speed switching valves.
11. The flow control valve for a vehicle suspension damper assembly as in claim 10, wherein the control flow of each said high speed switch valve is incrementally increased.
12. A vehicle suspension damper assembly comprising a damper having a flow control valve as claimed in any one of claims 1 to 11 disposed thereon for adjusting the magnitude of the damping force of said damper.
13. The vehicle suspension damper assembly as in claim 12, wherein said damper includes a cylinder assembly;
the cylinder barrel assembly comprises an outer cylinder barrel, an inner cylinder barrel and a working cylinder, the inner cylinder barrel is sleeved on the working cylinder, a middle cavity is formed between the inner cylinder barrel and the working cylinder, a working cavity is formed in the working cylinder, the working cavity is communicated with the middle cavity, and an oil storage cavity is formed between the outer cylinder barrel, the inner cylinder barrel and the working cylinder;
the flow control valve is arranged on the cylinder barrel assembly, an oil inlet hole of the flow control valve is communicated with the middle cavity, and an oil outlet hole of the flow control valve is communicated with the oil storage cavity.
14. The vehicle suspension damper assembly as in claim 13, wherein said outer cylinder has a mounting sleeve communicating with said working cylinder, said flow control valve is disposed in said mounting sleeve and sealingly engaged with said mounting sleeve, and a closed oil outlet chamber is formed in a lower portion of said mounting sleeve, said oil outlet chamber being in communication with an oil outlet and an oil storage chamber of said flow control valve, respectively;
and an oil inlet nozzle of the flow control valve extends into the cylinder barrel assembly and is in sealing fit connection with the inner cylinder barrel.
15. The vehicle suspension damper assembly according to claim 12, 13 or 14, wherein the high-speed on-off valve of the flow control valve includes one or more normally open type high-speed on-off valves and one or more normally closed type high-speed on-off valves, so that the damping force of the vehicle suspension damper assembly is located in a middle region of a damping force adjusting region thereof when the high-speed on-off valve of the flow control valve is not energized.
16. A vehicle suspension system comprising a vehicle suspension damper assembly as claimed in any one of claims 12 to 15 disposed at a position corresponding to a front wheel and a rear wheel of a vehicle, respectively.
CN202110723076.7A 2021-06-29 2021-06-29 Flow control valve, vehicle suspension shock absorber assembly and vehicle suspension system Active CN113251177B (en)

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US5651433A (en) * 1992-07-15 1997-07-29 Fichtel & Sachs Ag Fluid operated oscillation damper
CN1573191A (en) * 2003-05-26 2005-02-02 日立优喜雅汽车配件有限公司 Electromagnetic valve unit
WO2007085608A1 (en) * 2006-01-28 2007-08-02 Continental Teves Ag & Co. Ohg Electrically actuated valve
CN101240828A (en) * 2007-02-08 2008-08-13 株式会社万都 Variable damping force valve of shock absorber
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JP2015068479A (en) * 2013-09-30 2015-04-13 日立オートモティブシステムズ株式会社 Damping-force regulation damper
CN105782324A (en) * 2016-04-28 2016-07-20 广州汽车集团股份有限公司 Solenoid valve assembly externally arranged on absorber and absorber
CN105822714A (en) * 2015-01-26 2016-08-03 株式会社昭和 Control apparatus for damping force varying damper and damping force varying damper system
KR20180106284A (en) * 2017-03-20 2018-10-01 주식회사 만도 Damping force variable valve assembly and damping force variable shock absorber having the assembly
CN108930751A (en) * 2017-05-24 2018-12-04 株式会社万都 The valve arrangement of damper
CN111425547A (en) * 2020-05-19 2020-07-17 黄小伟 Built-in valve of shock absorber

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5651433A (en) * 1992-07-15 1997-07-29 Fichtel & Sachs Ag Fluid operated oscillation damper
CN1573191A (en) * 2003-05-26 2005-02-02 日立优喜雅汽车配件有限公司 Electromagnetic valve unit
WO2007085608A1 (en) * 2006-01-28 2007-08-02 Continental Teves Ag & Co. Ohg Electrically actuated valve
CN101240828A (en) * 2007-02-08 2008-08-13 株式会社万都 Variable damping force valve of shock absorber
CN103814247A (en) * 2011-11-24 2014-05-21 三菱电机株式会社 Flow rate control device
JP2015068479A (en) * 2013-09-30 2015-04-13 日立オートモティブシステムズ株式会社 Damping-force regulation damper
CN105822714A (en) * 2015-01-26 2016-08-03 株式会社昭和 Control apparatus for damping force varying damper and damping force varying damper system
CN105782324A (en) * 2016-04-28 2016-07-20 广州汽车集团股份有限公司 Solenoid valve assembly externally arranged on absorber and absorber
KR20180106284A (en) * 2017-03-20 2018-10-01 주식회사 만도 Damping force variable valve assembly and damping force variable shock absorber having the assembly
CN108930751A (en) * 2017-05-24 2018-12-04 株式会社万都 The valve arrangement of damper
CN111425547A (en) * 2020-05-19 2020-07-17 黄小伟 Built-in valve of shock absorber

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