CN102803810A - Integrated hydraulic damping device - Google Patents
Integrated hydraulic damping device Download PDFInfo
- Publication number
- CN102803810A CN102803810A CN2010800259660A CN201080025966A CN102803810A CN 102803810 A CN102803810 A CN 102803810A CN 2010800259660 A CN2010800259660 A CN 2010800259660A CN 201080025966 A CN201080025966 A CN 201080025966A CN 102803810 A CN102803810 A CN 102803810A
- Authority
- CN
- China
- Prior art keywords
- vibration damping
- pipe
- outer tube
- damping equipment
- tuner
- 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
Links
Images
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0331—Noise absorbers by inserting an elongated element in the pipe
Abstract
Disclosed is a damping device for a fluid system wherein the damping device comprises an inner tube (205) and an outer tube (200). Fluid pressure waves entering the damping device are damped in an annular space (235) arranged between at least a portion of the inner tube (205) and the outer tube (200). At least part of the inner tube (205) is integrated in the outer tube (200) which is made of a rigid material. The outer tube (200) is preferably a tube part of the fluid system itself wherein the inner tube (205) is mounted within the outer tube (200) in a manner that one part of the inner tube (205) is orientated opposite to the flow direction of the fluid and that the other part of the inner tube (205) is orientated in the flow direction of the fluid.
Description
Technical field
The present invention relates to be used for to weaken, decay or absorption fluids system, especially hydraulic system, more specifically be vibration or the vibration damping equipment of pulsation that is used for the hydraulic system of automotive field.
Background technique
In fluid or hydraulic line system, driving source produces pressure pulsation or fluctuation in the course of the work, and this causes mechanical vibration, thereby produces sound or noise.In the multiple application such as automotive field of such hydraulic system, for example because the reason of users'comfort will reduce such noise.
In order to reduce or reduce such vibration or noise as far as possible; From the U.S. Pat 7017610B2 that transfers present assignee, disclose and between the two ends of underground, inserted vibration damping equipment (resonator or tuner), its absorption or decay above-mentioned pulsation or pressure surge.This vibration damping equipment comprises the vibration damping housing, and the expansion hose that it is preferably processed by elastic material in the vibration damping housing, extends to vibration damping pipe and direction of flow reversed arrangement in the hydraulic line inner space.In order to realize such vibration damping, as more detailing among the US7017610B2, this vibration damping pipe is processed by the material that preferably is lower than the vibration damping housing in radially flexibility, and is more preferably processed by metal that is coated with plastics such as polytetrafluoroethylene (PTFE) or spiral band.
Through using such vibration damping equipment, form the resonance wall that does not pass through pressure, pressure pulsation or the peak value that gets into the inner space moves between the outer wall of vibration damping housing and vibration damping pipe with the pressure wave form.Be reflected in the annular space of these pressure waves between vibration damping pipe and vibration damping shell body wall and decay.Therefore, the pressure surge or the peak value that arrive the vibration damping equipment outlet only have slight influence, even have disappeared.
For example at automotive field, for hydraulic system, the hose length that reduces to use also still constantly increases with the demand that pipe fitting substitutes flexible pipe.The main cause of these changes is that hydraulic hose is higher than the cost of hydraulic tube piece.Therefore, reduced the applicable situation that uses above-mentioned vibration damping equipment.
Summary of the invention
In first scheme, the present invention provides a kind of vibration damping equipment, wherein, aforesaid vibration damping pipe (=interior pipe) or at least the part this vibration damping pipe be assembled into or integrate in the pipe fitting (=outer tube) of hydraulic line system, be rendered as the pipe in vibration damping equipment.Therefore, compare with known vibration damping equipment, the vibration damping pipe is arranged in the rigidity pipe fitting rather than elastic hose.
Be noted that term " hydraulic line " is understood that hydraulic hose, pipeline, pipe fitting or the analog of arbitrary dimension in the full text of this specification, because basic thought of the present invention is not limited to the hydraulic line of particular type or size.
As in the known vibration damping equipment, the effective resonator of doing of said vibration damping is with the aforesaid pressure wave of decaying.Be known that equally opening end at the vibration damping pipe is arranged to the adverse current body opposite with direction of flow and banishs and put, especially the low frequency pressure wave is attenuated, thereby advantageously reduces or minimize low frequency noise.Yet people are also fine to be understood, medium-high frequency also can be used technology decay described herein.
But with known, only use the elastic hose parts to compare as the vibration damping equipment of outer tube; The invention enables said vibration damping equipment is set in the pipe fitting of hydraulic line system becomes possibility, and allow in such system, to use more pipe fitting rather than flexible pipe part.This has advantageously increased flexibility and has contained the two hydraulic line of flexible pipe and pipe fitting with design, and since flexible pipe above-mentioned than pipe-line or more expensive this factor of pipeline section, it helps to reduce the cost of such system.
In addition, the hose length mentioned reduces also reduction and is used for being provided with and must be installed in flexible pipe but not the hydraulic line space of the known vibration damping equipment of pipe fitting.This shortcoming that the present invention can overcome this known damping technology is because the pipe fitting rather than the flexible pipe of hydraulic system partly are used to install this vibration damping equipment.
According to another program, in this pipe vibration damping equipment can be installed in be arranged between two flexible pipes parts or be arranged in two pipe section divide between or in a pipe section being arranged in a flexible pipe part and fluid or the hydraulic line system pipe fitting between dividing.
In another program, the vibration damping pipe can be orientated with the flow direction of (hydraulic pressure) fluid on the contrary, perhaps along flowing to orientation.
According to another program; The vibration damping pipe can be mounted (promptly fixing or clamping) by this way in pipe fitting; Be the part and the flow direction opposite (adverse current) orientation of vibration damping pipe; And other part longshore current is to (following current) orientation, thereby vibration damping equipment can be through changing recently calibrating or adjust its damping property, being preferably vibration damping frequency and vibration damping intensity of following current resonance/adverse current resonance, and wherein this ratio can be easy to change through changing along the mounting point of vibration damping length of tube.Yet this mounting point can also change according to the effectiveness in vibration suppression of sound and expection.
According to another program; Above-mentioned, vibration damping pipe (outside) fixing in the pipe or to clamp can be (promptly not leak) closely, perhaps have the leakage of qualification make at least some fluids can be without the vibration damping pipe but through the vibration damping pipe and (outside) annular space between the tube wall from an effluent to opposite side.Such leakage can be as additional or alternative is calibrated and/or the damping property of tuning vibration damping equipment.Yet, for the low frequency of decaying, such leakage have to as far as possible little or even drop to zero because low frequency can cause than high frequency faster (liquid) flow.
In said calibration or on the other hand tuning; The leakage that limits can provide through boring or the eyelet that is preferably placed in inner tubal wall (perforation) and/or a plurality of definite position of said annular space, edge; Shorten resonant length (being resonator length) through these borings or eyelet, and then change the resonant frequency of resonator.
According to another aspect of the present invention, vibration damping equipment can be used in combination with adopting the known vibration damping equipment technology based on PTFE resonator (like the described FBS tuner of US7017610B2) in the pipe that is provided.In such combination, vibration damping part can be along the flow direction in the pipe, thus as the following current tuner, thereby and PTFE or FBS tuner can counter-flow arrangement as the adverse current tuner, vice versa.
According to another program; It is emphasized that; In pipe (vibration damping pipe) and/or (outward) pipe can process by the known standard tubing of existing technology, but preferably vibration damping pipe and (outward) material of managing is identical or different but material that chemical and/or physical property are complementary, in case contact corrosion.
Be surprisingly found out that; Interior pipe can be by processing more than the cheap deformable metal of above-mentioned PTFE such as aluminium or steel; These materials preferably should comprise intrinsic high rigidity, but can be plastically deformed, thereby interior pipe can be secured in the outer tube through the plastic deformation of outer tube.These materials also should not comprise the leakage point along its length.
Yet, but also can use the material of other elasticity or plastic deformation, but when selecting vibration damping pipe material therefor, must consider will to the swelling pressure and under pressure routed collapsing certain resistivity is arranged.
In addition, the vibration damping equipment that this paper proposed advantageously can be processed by lower cost materials, need not to use aforementioned PTFE material.It should be noted that the PTFE material has other shortcoming, if promptly it is when countercurrent direction is installed, PTFE tube possibly burst and collapsed.For reducing this risk, known vibration damping pipe comprises that being arranged in PTFE is fixed to pressure compensation boring or eyelet near the immovable point of vibration damping housing.
Therefore according to another scheme, the enough two pipe fittings of the vibration damping equipment that is proposed ability are through being inserted and secured in straight (outward) pipe to (hereinafter is the vibration damping pipe) first (interior) and then wanting angle to make together with formed vibration damping canal curvature to an outer tube.Because the above-mentioned material that is used for the vibration damping pipe, this bending will can not damage the vibration damping pipe, can influence the above-mentioned wonderful resonance effect of vibration damping pipe sharply yet.Do not influence resonance performance reason be likely, when outer tube is bent, the self-aligning in outer tube of vibration damping pipe.
Hydraulic line is arranged and has been combined hydraulic tubing or pipe fitting and hydraulic hose usually, because hydraulic tubing or pipe fitting are cheap far beyond hydraulic hose usually.If the user load that such hydraulic line is used to connect hydraulic power for example and can relative to each other moves within the specific limits, such as the air-conditioning system and the motor of vehicle, such hydraulic hose needs flexibility to a certain degree usually.Only be provided with in the pipe fitting in such hydraulic line is arranged according to vibration damping equipment in the pipe proposed by the invention, wherein this pipe fitting part self length even can be shorter relatively.How the present invention is in this degrees of freedom of the pipe line arrangement of limit design fluid or hydraulic system not.
Other representational scheme of the present invention and characteristic limit in the dependent claims, include but not limited to the detailed description of hereinafter.
Description of drawings
Above-mentioned and other schemes of the present invention, feature and advantage can manifest from the hereinafter of the illustrative examples that combines with accompanying drawing is described in detail, wherein:
Figure 1A and 1B are that schematic longitudinal side view according to two embodiments of tuner in the pipe of the present invention is to illustrate basic thought of the present invention.
Fig. 2 is the sectional view of tuner in managing according to another embodiment of the present invention;
Fig. 3 is a sectional view according to another embodiment of the present invention, and it has combined tuner and known vibration damping equipment technology in the pipe.
Fig. 4 A-4D shows the method for optimizing of manufacturing according to tuner in the pipe of the present invention.
Embodiment
Concrete embodiment of the present invention will be described with reference to the drawings at present.These accompanying drawings will illustrate its basic principle and a plurality of embodiment, but should not be construed as consistent with actual ratio, especially their absolute and relative size and ratio.Yet; The present invention can implement with multiple different form, and should not be construed as and be confined to the embodiment that this paper provides, and is opposite; These embodiments only provide as the abundant disclosed purpose of the present invention, and can fully infer scope of the present invention for those skilled in the art.Employed term is not intended for use to limit the present invention in the detailed description of specific embodiment shown in the drawings.Used in the accompanying drawings similar reference character is represented similar element.
With reference to Figure 1A and 1B, basic thought of the present invention is set forth through two embodiments shown in the schematic longitudinal side view of vibration damping equipment (tuner) in the pipe of the present invention.This vibration damping equipment integrates in the hydraulic line system, and Fig. 1 only shows the part hydraulic line system that wherein is provided with this vibration damping equipment (limiting cutting off end or shearing end 107 and 108).
In the embodiment shown in Figure 1A, vibration damping equipment comprises outer tube 100 and interior pipe 105, and interior pipe 105 essentially concentric ground are arranged or are arranged in the outer tube 100.Outer tube 100 comprises annular groove or opening 110, is used for interior pipe 105 is fixed on this outer tube 100.The limit with dashed lines 115 that do not appear of annular groove is represented.
In durable secure fixation or the mounting structure 120 of pipe 105 outer tube 100 in can realize through the mechanical connection of friction or force closure or through viscose glue or welding, this fixing or install even can both guarantee that under machinery or thermal stress above-mentioned two manage 100,105 arranged concentric.As substituting of the groove that only uses relative broad 110, mounting structure 120 can be realized by two or more (preferably narrower) annular grooves or the opening that spatially separate each other along longitudinal axis.Yet when using narrow groove, at least two such grooves of preferred setting, thus in case interior pipe 105 destroys above-mentioned concentric arrangement in outer tube 100 tilt.
In the embodiment shown in Figure 1B, outer tube 150 is not out of shape or moulding as the embodiment of Figure 1A.In pipe 155 fixing or be installed in the outer tube 150 through annulus 160 (do not appear limit with dashed lines 165 expression), this annulus is arranged in and two manages 150, in the annular space between 155.Be similar to the embodiment shown in Figure 1A, durable and reliable fixation or the mounting structure of interior pipe 155 in outer tube 150 can be through at the mechanical connection of the friction at two combination surfaces (junction plane), 170,175 places or force closure or through at one of them said engaging surface place viscose glue, welding or rivet being set or similar structure is realized.Yet this durable fixed structure can also be realized through pipe 155 local deformations in making (being outer chimb or tubaeform thereby for example expand), thereby even can not need described annulus 160 fully.
The functional aspect of aforementioned vibration damping equipment and operator scheme will be with reference to the description of hereinafter to Fig. 2.
Fig. 2 has shown the sectional view according to the vibration damping equipment of first embodiment of the invention.This vibration damping equipment mainly is made up of the pipe fitting of two essentially concentrics, i.e. outer tube 200 and interior pipe 205.Be " in the pipe " vibration damping equipment because such configuration, the vibration damping equipment that is provided are appreciated that,, may also be referred to as " in the pipe " tuner because this paper describes its calibration or tuning performance.
Vibration damping equipment of the present invention can be used for decaying with hydraulic oil or other hydraulic fluid as the noise in the hydraulic line system of fluid, in particular for the very important occasion of users'comfort, and for example automotive field, truck, train, MPV or aviation instrument.Yet this vibration damping equipment also can be used for other fluid system with pressure fluid flow, like air-conditioning system or similar device.
On the direction of flow of supposition (arrow 220), the left-hand part 225 of vibration damping equipment is as the adverse current resonator, and right hand portion 230 is as the following current resonator.Certainly, will flow to 220 and change opposite direction into, vibration damping equipment also oppositely works mutually.The preferred convection cell of vibration damping equipment only flows promptly in this example for from left to right situation works, although the pressure wave self that is described below will be propagated on both direction in one direction but in the present embodiment.
Certainly; The also fine understanding of people vibration damping equipment as herein described also can be used for fluid for example with the situation of the mode two-way flow of cyclical-transformation; Even because under the situation that two-way fluid flows, described tuningly also can calibrate or tuning to device to obtain the favorable damping effect.
Shown in flowing under 220 situation from left to right; First annular space 235 in main fluctuation of partial pressure at least of propagating from left to right or the pressure wave noise of oil hydraulic pump or similar device (for example from) will get between pipe 205 outer walls and outer tube 200 inwalls and cause reflected wave and cause these reflected waves and original ripple between produce destructive interference, thereby reduce the wave amplitude or the intensity of this pressure surge.
Shown in the right hand portion 230 of vibration damping equipment in; Any remaining pressure wave can not get into second annular space 240 between interior pipe 205 outer walls and outer tube 200 inwalls equally; And providing " hydrostatic(al) (dead the fluid) " containment volume that only has few pressure surge or vibration to exist, this is mainly due to reflecting and interference second annular space, 240 existing disappearing mutually.
Be surprisingly found out that; The main therein left-hand part 225 that the vibration damping equipment of above-mentioned constructive interference/destructive interference takes place is primarily aimed at relative low frequency provides effectiveness in vibration suppression, and right hand portion only provides and is primarily aimed at the hydrostatic(al) containment volume that high frequency provides effectiveness in vibration suppression.
Be stressed that two kinds of effects all have contribution to the overall attenuation of the pressure wave propagated from left to right.
In the present embodiment, the lengthwise position 245 that is used for interior pipe 205 is clamped or be crimped on outer tube 200 is asymmetric, and wherein the long part of interior pipe is arranged in left-hand side 225, the short right-hand side 230 that partly is arranged in.Yet; This special position can be adjusted to calibration or tuning purpose; Even also can be arranged in pipe 205 to present the vibration damping equipment of symmetry, and then it all has identical effectiveness in vibration suppression at both direction, and this has one of following advantage; Be vibration damping equipment can be worked under the situation of not considering its installation direction, this has simplified the installation of this device in Motor Vehicle for example; Perhaps this device can be advantageously used in the noise in the fluid system of dampening fluid stream checker between both direction.
Through changing or calibrate vertical clamped position 245 of interior pipe 205, the resonant frequency v of basic resonator can almost at random be adjusted or changed Δ v, thereby the damping property of this device can be adjusted (tuning) by quilt in wide frequency band.
In another embodiment, sleeve 210 provides the leakage of regulation, thereby a part of fluid only flows to right-hand side 230 through annular space 235 from left-hand side 225.Such leakage can provide through passage or the eyelet that is provided with at housing/sleeve self, perhaps causes certain distortion of housing/sleeve to provide through outer tube 200.Through such leakage, vibration damping equipment can be calibrated (tuning).
As substituting or adding; Such calibration or tuning can the realization by the leakage of regulation; The leakage of this regulation is preferably used and is positioned at (perforation) on the inner tubal wall and/or boring or eyelet on a plurality of assigned positions of said annular space, can shorten resonant length (being resonator length) whereby and and then change the resonant frequency of resonator.
Fig. 3 has shown one embodiment of the present of invention, and it combines vibration damping equipment in the aforementioned tube (tuner in the pipe) with PTFE known in the art or FBS tuner.In this embodiment, vibration damping equipment is arranged in the flexible pipe-Tube jointer or adapter assembly 300 of the flexible pipe 305 that can be used for connecting hydraulic line system and pipe fitting 310 in this pipe.In these two embodiments, the fluid (not shown) flows shown in arrow 315 from left to right.
This embodiment comprises as one and is positioned at pipe tuner 320 right portions 320, above-mentioned that it has outer tube 310 and interior pipe 323.Tuner pack 320 longshore currents arrange or setting that to 315 promptly it plays above-mentioned following current tuner effect in this pipe.In the end 300 of the PTFE that left end 330 insertions of the interior tuner of pipe are above-mentioned or the outside flexible pipe 305 of FBS tuner 335.This PTFE or FBS tuner pack 335 are as the adverse current tuner, like U.S. Pat 7,017, described in the 610B2.
In this pipe tuner 320 in the present embodiment the clamping element 340 of the end 300 through being attached to flexible pipe 305 be fixed in PTFE or the FBS tuner 335.This clamping element 340 preferably plastically deformable and/or be spring start cap or cover to provide constant and reliable inwardly active force.It is emphasized that the connection between these two tuners 320,335 must be closely to realize contemplated effectiveness in vibration suppression, because any not controlled leakage will make this resonator off resonance.Clamping element 340 is preferably realized through flange or connecting sleeve that one is attached to the end 300 of the flexible pipe 305 that is used for PTFE or FBS tuner 335.
In the present embodiment; PTFE or FBS tuner 335 connect on the left end 360 that is attached to or is installed in the interior pipe 325 of tuner 320 in the pipe through pressing the flexible pipe that cooperates or shrink, and preferably in pipe tuner 320 be inserted into PTFE or FBS tuner 335 is mounted before.
Vibration damping equipment among the embodiment as shown in Figure 3 can also be installed by countercurrent direction, thereby appears through outer tube 310 with interior pipe 325 but not become a mandarin through the fluid of outer tube 305 and interior pipe 355.In such " adverse current installation ", tuner 320 is used as the adverse current tuner in the pipe, and PTFE or FBS tuner 335 are used as the following current tuner.Based on this, can also extend the function of existing FBS or PTFE tuner, thereby it can upwards all provide aforesaid effectiveness in vibration suppression at double fluid.
Fig. 4 A-4D shows the step of the preferable production process of making aforementioned vibration damping equipment.
Above-mentioned vibration damping equipment can use two to and through with first (interior) to (hereinafter is the vibration damping pipe) be inserted and secured on straight (outward) manage in and the angle subsequently outer tube wanted together with built-in vibration damping canal curvature to make.Because the aforementioned material that is used for the vibration damping pipe, this bending will neither can destroy the vibration damping pipe, also can influence aforesaid, the wonderful resonance effect of vibration damping pipe sharply.Do not influence resonance performance reason be likely, when outer tube is bent, the self-aligning in outer tube of vibration damping pipe.
With reference to figure 4A, the interior pipe 400 of given length " l " is processed by metal or other tubing.Then, manage in sleeve or housing 405 slip into or be contained in (the limit with dashed lines 410 that do not appear of sleeve pipe is represented) on 400.According to Fig. 4 B, this interior pipe 400 that comprises sleeve 405 inserts the outer tube 415 from an end.As previously mentioned, this outer tube 415 is the part of hydraulic line system preferably, thereby is rendered as vibration damping equipment (or tuner) in the pipe.As the centre article, in the annular space in this sleeve/housing is arranged between pipe 400 and the outer tube 415.
Be stressed that above-mentioned housing or sleeve 405 are managed on 400 or be installed in outer tube 415 inboards in the foregoing description, can at first being installed in.Under both of these case, housing or sleeve 405 can or adopt friction or force closure mechanical connection to fix through gluing, welding.
After interior pipe 400 was inserted outer tube 415, interior pipe 400 will be fixed in the outer tube 415 through annular distortion or the extruding from outside outer tube 415, shown in Fig. 4 C.This distortion preference is as forming near the centre of the position of outer tube 415 longitudinal axis at housing/sleeve through the cold-formed of the outside from outer tube 415.Through this operation, also by distortion or extruding, this has increased the frictional force with respect to interior pipe 400 for this housing or sleeve 405, and pipe 400 is fixed in the outer tube 415 reliably in making.
As carried, it only is preferred using sleeve/housing that interior pipe is fixed in the outer tube, and such be fixed on need not be such sleeve/housing the time can realize that also wherein in this case, interior pipe only is fixed through the outer tube of distortion.Under the situation of not using sleeve/housing, such fixing can be durable and reliable, or even anti-leak.
The action of vibration damping equipment when being bent in the straight pipe that has illustrated among Fig. 4 D shown in Fig. 4 C.Only optional the establishing of bending like this of position of the pipe fitting of hydraulic line system vibration damping equipment in pipe is set, but it has increased the pipeline system that designs such hydraulic system or the degrees of freedom of piping layout.Fig. 4 D shows, and after outer tube 415 is crooked, how reduces the leakage possibility of housing/sleeve 405 through use elastic material as aluminium or polymer to housing/sleeve 405.Show in addition, interior pipe 400 arranged concentric in outer tube 415 not after bending is especially at the two ends 425,430 of interior pipe 400.But be surprisingly found out that this unregulated resonator does not have tangible negative effect to the damping property of vibration damping equipment in managing.
Above-mentioned vibration damping equipment can be processed by the known standard tubing of existing technology, preferred vibration damping pipe with (outward) though the material of managing is identical or difference but material that chemical and/or physical property are complementary, in case contact corrosion.Such matching materials is well-known in the chemical/physical document, and can select suitable kind for use for different applications.Contact corrosion itself is well-known phenomenon, and those of ordinary skills can further find suitable combination of materials.
Yet, but also can use the material of other elasticity or plastic deformation, but when selecting vibration damping pipe material therefor, must consider will to the swelling pressure and under pressure routed collapsing certain resistivity is arranged.In addition, the vibration damping equipment that this paper proposed advantageously can be processed by lower cost materials, and need not to use aforesaid PTFE material.
The hydraulic line that contains the vibration damping equipment that this paper provides can be crooked, and don't destroy the pipe inner structure, and by contrast, existing vibration damping equipment uses plastics such as PTFE, its with small-bend radius when crooked structure will burst and collapse even damage fully.
In addition, use PTFE tube will need pressure compensation boring or eyelet in case these manage routed collapsing.These borings or eyelet will influence the damping property of vibration damping equipment unfriendly.Vibration damping equipment of the present invention (tuner in the pipe) preferably uses metal tube, and it need not such pressure compensation boring or eyelet.Certainly, flexible FBS tuner also need not such pressure compensation, but than vibration damping equipment of the present invention, it is much expensive that its cost is wanted.In addition, need not to worry that vibration damping equipment of the present invention does not have flexibility because the related application field have enough spatial arrangement according to the pipe of rigidity of the present invention in tuner.
Tuner can be set in place between two flexible pipe parts or between two pipe fittings or in the pipe fitting between the pipe fitting of flexible pipe part and fluid or pipeline system in the aforementioned tube.
Although before specification in described in detail signal of the present invention/concrete embodiment; But people will understand, can under the situation that does not deviate from the scope of the present invention that is limited by the accompanying claims and thought, carry out multiple change or variation according to the integral body instruction of above-mentioned disclosure to these details.Thereby disclosed particular arrangement only is schematically, and does not mean that restriction scope of the present invention, and scope of the present invention will be limited the four corner of appending claims and any and whole equivalent way.
Claims (19)
1. vibration damping equipment that is used for fluid system; Pipe and outer tube in this vibration damping equipment comprises; The hydrodynamic pressure ripple that wherein gets into this vibration damping equipment be arranged in part at least should in be attenuated in the annular space between pipe and this outer tube, at least part should in pipe and the outer tube one processed by rigid material constitute.
2. vibration damping equipment according to claim 1 is characterized in that, this outer tube is the part of this fluid system.
3. vibration damping equipment according to claim 1 and 2 is characterized in that, pipe is installed in this outer tube by this way in this, that is, the part of pipe and the flow direction of fluid are orientated on the contrary in this, and another part of pipe flows to orientation along this in being somebody's turn to do.
4. vibration damping equipment according to claim 3 is characterized in that, calibrates vibration damping frequency and/or vibration damping intensity through changing to manage in this along the mounting point longitudinally of this outer tube.
5. according to each described vibration damping equipment in the claim 1 to 4, it is characterized in that pipe installation in this outer tube is leak free basically in this, thereby have basically no fluid this annular space process between pipe and this outer tube in this.
6. according to each described vibration damping equipment in the claim 1 to 4, it is characterized in that the installation of pipe in this outer tube provides the leakage of qualification in this, thus segment fluid flow this annular space process between pipe and this outer tube in this at least.
7. vibration damping equipment according to claim 6 is characterized in that, said leakage is reduced the decay with enhance fluid low frequency pressure wave as far as possible.
8. according to claim 6 or 7 described vibration damping equipments, it is characterized in that the leakage of this qualification is provided by the boring or the eyelet that are positioned on the inner tubal wall.
9. according to claim 6 or 7 described vibration damping equipments, it is characterized in that the leakage of this qualification is provided by the boring or the eyelet at the assigned position place of the annular space between managing along this outer tube with in being somebody's turn to do.
10. according to each described vibration damping equipment in the claim 1 to 9; It is characterized in that; To combine with PTFE or FBS tuner according to the described vibration damping equipment of aforementioned arbitrary claim, wherein said interior pipe longshore current direction of flow arranges that the FBS tuner and the flow direction be layout on the contrary.
11. vibration damping equipment according to claim 10 is characterized in that, this vibration damping equipment is arranged in the flexible pipe-Tube jointer or adapter assembly of the pipe fitting that can be used for connecting flexible pipe and hydraulic line system.
12. vibration damping equipment according to claim 11 is characterized in that, the end of this vibration damping equipment is inserted in the end of outside flexible pipe of this PTFE or FBS tuner.
13. vibration damping equipment according to claim 12; It is characterized in that; This vibration damping equipment is through using elastically deformable or plastic deformation or being fixed to this PTFE or FBS tuner by spring-actuated clamping element, and this clamping element is attached to the said end of this outside flexible pipe.
14. vibration damping equipment according to claim 13 is characterized in that, this clamping element is cap, flange or the connecting sleeve of said end that integrates the outside flexible pipe of this PTFE or FBS tuner.
15., it is characterized in that pipe and/or this outer tube are processed by material identical or different but that chemistry and/or physics are complementary in this according to each described vibration damping equipment in the claim 1 to 14.
16., it is characterized in that pipe is by intrinsic high rigidity but still the material of plastically deformable is processed preferably aluminium or steel in this according to each described vibration damping equipment in the claim 1 to 15.
17. a manufacturing according to the method for each described vibration damping equipment in the claim 1 to 16, comprise with interior pipe insert the outer tube neutralization through the position that makes said outer tube and in this is housed, manage at least partly along longitudinal axis deform with should in manage and be fixed in this outer tube.
18. method according to claim 17; It is characterized in that; Sleeve or housing are installed to the outside of managing in this or the inboard of this outer tube; Should in pipe insert in this outer tube and make this outer tube the position that tube/housing is housed deform along longitudinal axis at least partly with should in manage and be fixed in this outer tube.
19. according to claim 17 or 18 described methods, it is characterized in that, also comprise this outer tube is somebody's turn to do interior canal curvature to predetermined angular together with fixing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0909989.6A GB0909989D0 (en) | 2009-06-11 | 2009-06-11 | Integrated hydraulic damping device |
| GB0909989.6 | 2009-06-11 | ||
| PCT/EP2010/057853 WO2010142614A1 (en) | 2009-06-11 | 2010-06-04 | Integrated hydraulic damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102803810A true CN102803810A (en) | 2012-11-28 |
Family
ID=40937187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800259660A Pending CN102803810A (en) | 2009-06-11 | 2010-06-04 | Integrated hydraulic damping device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2440826A1 (en) |
| CN (1) | CN102803810A (en) |
| BR (1) | BRPI1009596A2 (en) |
| GB (1) | GB0909989D0 (en) |
| MX (1) | MX2011013254A (en) |
| WO (1) | WO2010142614A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352175A (en) * | 2016-08-31 | 2017-01-25 | 新昌县开铭制冷配件有限公司 | Connecting pipe used in the cooling pipe of air-conditioning machinery |
| CN106439294A (en) * | 2016-10-13 | 2017-02-22 | 新昌县开铭制冷配件有限公司 | Adapter seat for air conditioner cooling pipes |
| CN107218017B (en) * | 2017-07-11 | 2018-06-26 | 中国石油大学(北京) | Perforation double-acting shock absorber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238372Y (en) * | 1995-11-22 | 1996-10-23 | 陈家贤 | Multipipeline muffler |
| US6155378A (en) * | 1999-07-01 | 2000-12-05 | Dana Corporation | Method and apparatus for noise suppression in a fluid line |
| CN2497142Y (en) * | 2001-04-03 | 2002-06-26 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Air-release valve silence for petroleum drilling |
| CN2783102Y (en) * | 2005-04-01 | 2006-05-24 | 沈阳平和实业有限公司 | Sound proof bend |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7007718B2 (en) * | 1997-11-24 | 2006-03-07 | Dayco Products, Llc | Energy attenuation apparatus for a conduit conveying liquid under pressure, system incorporating same, and method of attenuating energy in a conduit |
| DE10221277B4 (en) * | 2002-05-14 | 2004-03-25 | Eaton Fluid Power Gmbh | Damper for hydraulic system |
| US6848476B2 (en) * | 2003-06-13 | 2005-02-01 | Dana Corporation | Tuning cable |
-
2009
- 2009-06-11 GB GBGB0909989.6A patent/GB0909989D0/en not_active Ceased
-
2010
- 2010-06-04 EP EP10722369A patent/EP2440826A1/en not_active Withdrawn
- 2010-06-04 BR BRPI1009596A patent/BRPI1009596A2/en not_active Application Discontinuation
- 2010-06-04 WO PCT/EP2010/057853 patent/WO2010142614A1/en active Application Filing
- 2010-06-04 MX MX2011013254A patent/MX2011013254A/en unknown
- 2010-06-04 CN CN2010800259660A patent/CN102803810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238372Y (en) * | 1995-11-22 | 1996-10-23 | 陈家贤 | Multipipeline muffler |
| US6155378A (en) * | 1999-07-01 | 2000-12-05 | Dana Corporation | Method and apparatus for noise suppression in a fluid line |
| CN2497142Y (en) * | 2001-04-03 | 2002-06-26 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Air-release valve silence for petroleum drilling |
| CN2783102Y (en) * | 2005-04-01 | 2006-05-24 | 沈阳平和实业有限公司 | Sound proof bend |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2011013254A (en) | 2012-04-30 |
| GB0909989D0 (en) | 2009-07-22 |
| WO2010142614A1 (en) | 2010-12-16 |
| WO2010142614A9 (en) | 2011-05-26 |
| EP2440826A1 (en) | 2012-04-18 |
| BRPI1009596A2 (en) | 2016-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7017610B2 (en) | Damper for hydraulic systems | |
| US7665484B2 (en) | Fluid coupling | |
| MXPA04008340A (en) | Method and apparatus for reduction of fluid-borne noise in hydraulic systems. | |
| US4794955A (en) | Hose for and method of attenuating fluid pressure pulsations | |
| EP1188981B1 (en) | Pressure-pulsation-damping fluid supply conduit | |
| US20090025384A1 (en) | Feed Line for a Hydraulic System and Hydraulic System | |
| US9115840B2 (en) | Snap on vibration damper | |
| RU2589974C1 (en) | Fitting, system containing such fitting, and airtight connection with such fitting | |
| US20170037924A1 (en) | Vibration-damping device | |
| US8132645B2 (en) | Attenuation device particularly pulsation attenuator | |
| CN102803810A (en) | Integrated hydraulic damping device | |
| US20170349152A1 (en) | Pressure Variation Damper for a Hydraulic Vehicle Brake System, and Corresponding Vehicle Brake System | |
| US10047819B2 (en) | Vibration-damping device | |
| MX2011009998A (en) | Protective sleeve for a flexible pipe. | |
| KR101860264B1 (en) | Slip joint for piping | |
| KR20180096464A (en) | Connector for piping that can be connected at any direction and angle | |
| US20200191304A1 (en) | Length compensator | |
| JP2014095468A (en) | Pipe joint | |
| JPH09257186A (en) | Joint for pipe with orifice | |
| US20110048846A1 (en) | Noise attenuator for a hydraulic fluid pipe, item comprising this attenuator, pipe comprising this item and method of assembly | |
| KR102291871B1 (en) | Ferrule assembly for fitting | |
| JPH10141425A (en) | Vibrationproof device | |
| KR101968845B1 (en) | Mold for Rubber Hose | |
| JP2021092237A (en) | Double pipe joint | |
| US8424922B2 (en) | Angled flexible coupling with integral outer shield and/or inner liner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121128 |