CN104995407A - Extended elasticity of pump membrane with conserved pump force - Google Patents
Extended elasticity of pump membrane with conserved pump force Download PDFInfo
- Publication number
- CN104995407A CN104995407A CN201380059817.XA CN201380059817A CN104995407A CN 104995407 A CN104995407 A CN 104995407A CN 201380059817 A CN201380059817 A CN 201380059817A CN 104995407 A CN104995407 A CN 104995407A
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- Prior art keywords
- pump
- diaphragm element
- intermediate portion
- region
- pump case
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
Abstract
A pump comprising a pump housing member (1) having a chamber (21) with inner walls and an open end having a first area (25), the pump housing member (1) comprises an enlarged surface surrounding the open end of the chamber (21). The pump further comprises a second pump housing member (5) and a membrane element (32) with a second area (27). The membrane element (32) has a first central section having a third area (28) with same size as the first area (25) of the open end of the chamber (21). The membrane element (32) is arranged on the pump housing element (1) with the first central section positioned over the open end, forming a sealed chamber. A portion of the membrane element (32) is slidably clamped between the enlarged surface and the second pump housing member (5).
Description
Technical field
Present invention relates in general to diaphragm pump field.The invention particularly relates in patient monitoring, monitoring of respiration, Anesthesia Monitoring equipment, the medical science of particularly monitoring patient respiration gas componant is ventilated in monitoring and gas analyzer, as the diaphragm pump that sampling pump uses.
Background technique
Diaphragm pump has the advantage of simple, the compact and good airproof performance of structure.Therefore, diaphragm pump is widely used in medical equipment and biochemical analysis as the sampling pump of fluid analysis.Medical science ventilation monitoring field, the gas that gasmetry module analysis diaphragm pump gathers from patient breathing circuit, and in Real-Time Monitoring patient breathing circuit the constituent of gas to obtain the state of patient.At present, gasmetry module trends towards miniaturization and has better stability and lower energy consumption.Therefore, the design about the size of membrane pump, life-span and energy loss is had higher requirement.
Detect the gas monitor apparatus of gas, such as inductor, is generally precision element, and to reducing, the vibration interference measuring accuracy is very sensitive.Under normal circumstances, sampling pump is monitoring modular principal vibration source, and the noise affecting measuring accuracy so may be caused to produce.Therefore, sampling pump needs to provide more stable sample.
The diaphragm pump of conventional design has flat film and concave surface spherical in shape or has the pump cavity of cylindrical shape of planar base surface.Thomas's diaphragm pump and
pump all belongs to this kind of diaphragm pump.In addition, normally external margin is fixing to form pump district for the film of this kind of diaphragm pump.Such design limits the elastic strain ability of film, also limit the length of stroke of film simultaneously.Pump district then limits maximum pump pressure (because pump district and pumping action power can limit maximum pump pressure jointly) and the fatigue life of diaphragm pump.Another problem is, when flat film matches is in the concave surface of cavity or planar surface, can produce noise, and meanwhile, stroke will stop producing mechanical vibration immediately.
Therefore, the diaphragm pump that a kind of improvement is provided is necessary.Particularly provide a kind of more small-sized than existing diaphragm pump and more there is more small vibration and more quiet diaphragm pump while high pressure providing.
Summary of the invention
Correspondingly, preferably the object of the embodiment of the present invention is to reduce or eliminate one or more deficiency of the prior art, shortcoming or problem, such as reduce or eliminate the single problem of above-mentioned proposition or any combination of multiple problem by providing according to the attached device with the claim formation of the dilatational elasticity of the pumping diaphragm of conservative pumping forces or method, such as by the device for patient monitoring, monitoring of respiration, Anesthesia Monitoring, be particularly useful for the device of medical science ventilation monitoring, and the gas analyzer of gas componant during for monitoring patient respiration.
Here the disclosed device being to provide the dilatational elasticity of the pumping diaphragm with conservative pumping forces, system and method.
According to the one side disclosed, the pump comprising pump case, diaphragm element and the second pump case is disclosed.Pump case comprises cavity, and cavity comprises wall and has the opening end of first area.Pump case comprises the extended surface around cavity hatch end.Diaphragm element has second area.Pump case comprises the extended surface of the opening end around cavity.Diaphragm element has second area.Diaphragm element comprises first intermediate portion with the 3rd region, and the size in the 3rd region equals the size of the first area of the opening end of cavity.Diaphragm element is arranged on pump case and the first intermediate portion on opening end, to form seal chamber.A part for diaphragm element is held between extended surface and the second pump case slidably, and when there being active force to apply, retained part radially moves and stretches.
The advantage of this structure is to keep diaphragm element to be fixed on the region larger than the diameter in real work region slidably, and therefore barrier film can freely radially move and expand.Larger region makes barrier film expansible more, therefore can realize compared with long stroke (amount that such as each stroke exports is large).Further, due to radial motion, when expanding less, can keep identical pump delivery, due to lower fatigue stress grade, the fatigue life of barrier film significantly increases, such as, for having the longer life-span.The elastic resistance of barrier film consumes less can be used as firmly, and therefore available pump active force can efficiently be utilized.
First intermediate portion and cavity are all annular.
Be tilt internal wall at some example mesospore.Tilt internal wall is straight, or projection, or depression, or there is two or more radius, or be sinusoidal waveform shape, or be higher order polynomial waveform shape.
3rd region of the first intermediate portion of diaphragm element can be effective pump region.
The extended surface of pump case comprises at least equal with the diaphragm element region of size.
In some example, diaphragm element comprises cocked bead.The effect of cocked bead as O type circle, for strengthening sealing effect.
Extended surface comprises groove, to install the cocked bead of diaphragm element.This can be used for diaphragm element to be fixed on pump case.
In some example, diaphragm element comprises and has four-range second intermediate portion.Second intermediate portion is the core of diaphragm element.Second intermediate portion is thicker than other parts of diaphragm element.Other parts of second element may be thought of as the outer part around the second intermediate portion.Further, the 4th region of the second intermediate portion is less than the first area of the opening end of cavity.
The advantage of the structure disclosed here is, because stroke slows down in incrementally mode, stroke can be stoped to collide the bottom of cavity, not only can make the noiseless stopping of stroke, and mechanicalness noise can be down to minimum.Further, at the end of close to stroke, slow down and can reduce effective pump region of barrier film.Because stroke active force is constant, at the end of close to stroke, pump becomes stronger.
Second intermediate portion can be annular.
In some example, barrier film is made by elastic material.Material can be rubber and/or the one for llowing group of materials: chlorobutadiene, ethylene propylene diene rubber, fluorine rubber, silicon, thermoplastic elastomer (TPE) or nitrile.
In some example, the thickness proportion scope of other parts of the second intermediate portion and diaphragm element is 2-15.
In some example further, the proportion in the second area of diaphragm element and the 3rd region of the first intermediate portion is 1.5-10.
In some example, the second intermediate portion comprises inclined outer wall, and as frustum, inclined outer wall has the base portion being greater than top.
In some example, the second pump case comprises edge, and edge is conical, or comprises towards one or more radiuses of described opening end.
According to the another aspect disclosed, a kind of method of the dilatational elasticity for pumping diaphragm is disclosed.The method comprises provides pump as described herein.The first intermediate portion to diaphragm element applies reciprocating strokes motion, and therefore between a part for diaphragm element the extended surface that is held on pump case slidably and the second pump case, therefore retained part can freely radially move and stretch.
It is emphasized that the word used in this specification " comprises " is existence for detailed characteristics, integer, step or element, instead of gets rid of other features one or more, integer, step, the existence of element or grouping or increase.
Accompanying drawing explanation
Disclose example in these and other aspects, feature and advantage be obvious, and by following to the present invention disclose embodiment description and the reference of accompanying drawing is set forth, wherein:
Fig. 1 is the sectional view of pump case and barrier film in an example.
Fig. 2 is the sectional view of pump case and barrier film in an example.
Fig. 3 is the sectional view of diaphragm pump.
Embodiment
By reference to the accompanying drawings the specific embodiment disclosed is described.But the content of exposure can have multiple different manifestation mode, be not limited to the disclosed form of expression here.Natch, these embodiments provided can make the content disclosed be comprehensive, complete, and protection scope of the present invention is fully conveyed to those skilled in the art.Accompanying drawing explain embodiment detailed description in specific term and be not used in disclose content limit.In the example shown, the element that same numbers is same.
Description is below devoted to describe the diaphragm element in the embodiment of the present invention's exposure and diaphragm pump.Diaphragm pump is as the sampling pump of device, and these devices are used for patient monitoring, monitoring of respiration, Anesthesia Monitoring, especially medical science ventilation monitoring and the gas analyzer for gas componant during for monitoring patient respiration.But understandably the present invention is not restricted to these application, but can be applied to the many other systems needing fluid pump.
The diaphragm pump 100 that Fig. 1 discloses, comprises pump case 1 and diaphragm element 6 in one example in which.Pump case comprises the cavity 21 with opening end, and opening end comprises first area.With seal chamber 21 on the opening end that diaphragm element 6 is arranged at cavity 21.
That cavity 21 comprises inclination or wall 20 of cutting sth. askew.Tilt or wall 20 of cutting sth. askew can be straight, as the shape of the truncated cone that Fig. 1 discloses.In some example, inclination or wall 20 of cutting sth. askew can be protruding or depression.In other examples, wall 20 has multiple radius.Can be sinusoidal waveform shape, wavy shape, polynomial waveform shape or rack shapes at other structure mesospores 20.Preferably cavity 21 is annular, but also can be other any shapes, such as square, rectangular, polygonal or ellipse.
In addition and/or alternatively, in some example, the bottom section of cavity 21 has the region 26 in the region 25 being less than opening end.
Diaphragm element 6 comprises second area 27 and has first intermediate portion (see Fig. 2) in the 3rd region 28.First intermediate portion is the core of diaphragm element 6.Therefore the 3rd region is less than second area 27.
Preferably diaphragm element is annular, but also can be other any shapes, such as square, rectangular, polygonal or ellipse.In addition, preferably the first intermediate portion is annular, but also can be other any shapes, such as square, rectangular, polygonal or ellipse.
Diaphragm element need not be identical with the shape of the first intermediate portion, and such as, diaphragm element can be square, and the first intermediate portion is annular.Preferably, the shape of the first intermediate portion is identical with the shape of the opening end of cavity.
Preferably diaphragm element is by can deformation or elastic material be made, such as rubber.The material used in some instances can be chlorobutadiene, ethylene propylene diene rubber, fluorine rubber, silicon, thermoplastic elastomer (TPE) or nitrile.But those skilled in the art can use the other materials with similar characteristics.
In addition and/or alternatively, diaphragm element can comprise second intermediate portion with the 4th region 24.The thickness 23 of the second intermediate portion is greater than the thickness 22 of other parts of diaphragm element.Other parts of barrier film are provided with the outer part around the second intermediate portion.Preferably, the thickness 23 of the second intermediate portion is 2-15 with the proportion of the thickness 22 of other parts of diaphragm element.
Preferably, the second thicker intermediate portion protrudes from the opposite direction of the opening end of cavity.The wall of bump be tilt or cut sth. askew, be such as frustum, or be protruding, or be what cave in.Alternatively, in some example, convex portion can be a part for a circle or a part for semicircle.
In addition, in some example, preferably, the second thicker intermediate portion of diaphragm element can comprise the region less than opening.And the second thicker intermediate portion of diaphragm element can be arranged on the central position of the opening end of cavity 21.
The harder core of part a position as diaphragm element 6 that second intermediate portion is the thickest, reciprocating strokes motion from actuator puts on this position, and actuator can be voice coil motor, miniature motor, piston, cam or other any machinery that diaphragm element 6 can be made to be subject to active force.When diaphragm element is pressed into cavity 21 by stroke telemechanical, moving downward at the tilt internal wall 20 of a limited location in cavity 21 of the second thicker intermediate portion, becomes thicker at the second intermediate portion of this position diaphragm element 6.Stroke so can be made to slow down gradually.So stroke not only can be made to stop, mechanical vibration can also being down to minimum.
Another one advantage is when stroke gos deep into cavity, actual pump region, and such as effective pump region diminishes, but stroke active force is identical.Therefore pump 100 becomes stronger, such as, can produce larger pressure.Can represent by such as the following formula:
P＝F/A (1)
Wherein, P is pumping pressure, and F is stroke active force, and A is effective pump region.
Further, this structure can prevent stroke from colliding the bottom of cavity.
Pump characteristics according to demand, the shape that thicker is divided and thickness 23 are transformable.Same, the shape of the inwall of cavity is also transformable.
In addition, in some example, diaphragm element 6 can comprise cocked bead 30.Cocked bead 30 can be arranged on the peripheral edge of diaphragm element 6.Further, pump case 1 can comprise the extended surface of the opening end around cavity 21.Extended surface can comprise groove 31, to install the cocked bead 30 of diaphragm element 6.So as O type circle, sealing effect can be strengthened.
In addition, in some example, extended surface can comprise at least identical with the region of diaphragm element 6 region.
Fig. 2 discloses the diaphragm pump 200 of another example.Diaphragm pump 200 comprises pump case 1 and diaphragm element 32.In describing herein, pump case 1 and diaphragm element 32 can build according to the description in Fig. 1.
Alternatively, in some example, pump case 1 can comprise a cavity 21, and cavity 21 can comprise spherical or flat bottom surface.
The whole region 27 of diaphragm element 32 is elastic diaphragm region 27, and the part that diaphragm element 32 covers the opening end of cavity 21 is effective pump region 28 (such as, identical with the region 25 of opening end).In addition, in some example, when diaphragm element 32 comprises the second intermediate portion (with reference to figure 1) that thickness 23 is greater than the thickness 22 of other parts of diaphragm element, effective pump region (such as the first intermediate portion) 28 is greater than the region 24 of the second intermediate portion.
The main distinction of the shape that Fig. 2 describes and prior art is that diaphragm element 32 is not the edge being fixed on cavity 21.On the contrary, a part for diaphragm element 32 is held between the extended surface of pump case 1 and the second element 5 of pump case 1 slidably.Second element 5 of pump case 1 can be barrier film fixed plate.Region between the second element 5 of pump case 1 and the extended surface of pump case 1, when there being active force to apply, diaphragm element 32 can freely do radial motion and stretching, extension.
In addition, in some example, diaphragm element 32 is fixed on outer dia position, such as, is fixed by the groove 31 of extended surface cocked bead 30 being fixed on pump case 1.Region between immovable point and cavity 21, the diaphragm element 32 of this structure still can freely do radial motion and stretching, extension.
In order to make a part for diaphragm element 32 can slide between two planar surfaces of the extended surface of pump case 1 and the second element 5, use the elastic region being greater than effective pump region 28.So make diaphragm element 32 expansible more, such as, produce longer stroke, therefore the output quantity of each stroke is more.
The slip retaining part of diaphragm element 32 is between barrier film immovable point (such as peripheral edge) and cavity 21.When keeping the length of stroke, when less expansion, can keep identical pump delivery, so due to less fatigue stress grade, fatigue life increases.Further, the pump structure that Fig. 2 discloses is compared with existing pump, and both have the cavity of same size, but the elastic resistance of diaphragm element 32 consumes less available pump active force.Use flat diaphragm element to substitute the diaphragm element with thicker intermediate portion of diagram exposure, identical effect can be reached.
The friction factor of the material of pump case 1 and the second pump case 5 is little and be hard.In some example, material can be polymer, metal or composite.
The problem of flat membrane surface collision concave spherical surface or plane is that both collisions can produce noise, and stroke movement can stop producing mechanical vibration immediately.By designing the shape of cavity 21, making wall be conical or in the region of diaphragm element 32 comparatively hard (or thicker), there is one or more radius, stroke movement can be allowed to slow down gradually.So can make diaphragm element noiseless stopping of stroke movement when its terminal position, and due to retarded motion gradually, mechanical vibration reduce.
In addition and/or alternatively, by by the edge designs of the second pump case 5 (such as barrier film fixed plate) coning, or be designed to, in the region of diaphragm element 32 comparatively hard (thicker), there is one or more radius, stroke movement also can be allowed to slow down gradually.So can make diaphragm element at its turning point time stroke movement noiseless stopping, and due to retarded motion gradually, mechanical vibration reduce.
Pump characteristics according to demand and obtainable active force, wooden partition fixed by cavity and barrier film can according to multiple different patten's design, such as chamfer, convexity radius or recessed radius etc.
In addition, the pump 200 that Fig. 2 discloses, in some example, according to equation 1 before, the region 27 of elastic diaphragm element and the preferred proportion scope effectively between pump region 28 are 1.5-10.Stroke is longer, and the gap between two kinds of regions is larger.
Fig. 3 discloses the sectional view of an example septation pump 300.Diaphragm pump 300 comprises diaphragm element 33 (according to any structure described herein) and pump case 1, and optional second pump case 5 (such as barrier film fixed plate) and cavity 21.In this example, cavity 21 comprises skew wall to support the thicker region of diaphragm element.Therefore stroke can be allowed to slow down gradually.
Further, pump comprises pump head 12.In this example, pump head 12 supports the second intermediate portion of diaphragm element 33.Alternatively, in some example, pump head is mechanically connected to the top of the second intermediate portion, such as, insert the second intermediate portion or both tightened by screw.When pump head 12 supports the top of the second intermediate portion, binding agent can be used both to be sticked in the region that supports of the top of the second intermediate portion and pump head.Tackiness agent can be glue, adhesive tape etc.
In the example that Fig. 3 describes, the actuator applying active force to diaphragm element 33 can be voice coil motor.The reciprocating strokes Movement transmit that voice coil motor is used for pump head 12 to produce is to diaphragm element 33.Especially, voice coil motor can be cylindrical voice coil motor.
In some example, voice coil motor 13 is cylindrical structural, to be fixed on pump head 12 and to be placed in gap.Space is had the magnetic cup of conical base 7, circular cone magnet 8 such as permanent magnet, and one-sided circular cone pole shoe 9 surrounds.
In addition, in order to utilize the magnetic field of gap substantially and reduce the size of pump 300, voice coil motor 13 can be without bone air core coil, by being wound around from glutinous mode.This design make use of the advantage of the space confined space, therefore can design less diaphragm pump 300.
In example disclosed by Fig. 3, magnetic cup comprises the conical base 7 in the type of falling M.The surface of contact of circular cone pole shoe 9 and the surface of contact of circular cone magnet 8 and the conical base of circular cone magnet and magnetic cup 7 is all taper.Conical surface all diminishes gradually towards same direction.Such a structure increases the lateral area of circular cone pole shoe 9, the magnetic field in space is uniformly distributed in radial directions.
This design allows to use larger magnet, and the magnetic flux of pole shoe 9 inside can be distributed preferably.Further, the free axis that conical shape can be pump head 12 provides better support, and does not increase any volume except cylindrical volume.Therefore, when voice coil motor 13 works in space, magnetic field is large as far as possible.
In Fig. 3, the working principle of diaphragm pump 300 is: voice coil motor 13 is placed in the magnetic field that formed by one-sided pole shoe 9, circular cone magnet 8 and the magnetic cup with conical base 7.When alternating voltage is passed to voice coil motor 13, voice coil motor 13 produces AC ampere power and does shuttle straight line motion to order about pump head 12.
Pump circulation can produce positive pressure and negative pressure circulation in cavity 21.When the pressure in seal space is negative, liquid will flow to cavity 21 from pumping hole.When the pressure in seal space is positive, liquid is discharged by outlet by pump 300.
In the example that Fig. 3 discloses, little voice coil motor can be adopted to do straight line motion to drive barrier film, and therefore large transmission structure can omit.Therefore the size of diaphragm pump 300 reduces.Voice coil motor can not affect the operating life of pump 300, because voice coil motor does not comprise the structure of easily wearing and tearing.Voice coil motor Direct driver diaphragm element 33, and motion need not be changed, so there is no the consumption of intermediate energy.Further, do not have the problem of starting torque here, when therefore applying little voltage, pump 300 almost can start immediately.Even if therefore the driving voltage applied or electric current less time, voice coil motor also can export the active force of pump head 12 or displacement to collect small amounts of liquid.
Further, by the reciprocatory motion of the FREQUENCY CONTROL pump head 12 of control voltage.Because the amplitude of reciprocatory motion depends on the amplitude of electric current, by being adjusted to the amplitude of the voltage of voice coil motor, the amount of the liquid collected easily can be controlled.
Although the present invention here describes and explains several embodiment; those skilled in the art can easily expect a large amount of other method and/or structure to perform function as described herein; and/or obtain result as described herein and advantage, and each change and/or amendment are all considered to belong to protection scope of the present invention.More put it briefly, those skilled in the art's easy understand all parameters as described herein, size, material and structure are all exemplary, and actual parameter, size, material and/or structure depend on the specialized application of the content using the present invention to disclose.
Claims (17)
1. a pump comprises:
Pump case, described pump case comprises cavity, and described cavity comprises inwall and has the opening end of first area, and described pump case comprises the extended surface of the opening end around described cavity;
Second pump case;
Diaphragm element, described diaphragm element has second area, and described diaphragm element comprises first intermediate portion with the 3rd region, and the size in described 3rd region equals the size of the described first area of described cavity hatch end;
Wherein said diaphragm element is arranged on described pump case and described first intermediate portion on described opening end, to form seal chamber; And a part for wherein said diaphragm element is held between described extended surface and described second pump case slidably, when there being active force to apply, described retained part radially moves and expands.
2. pump as claimed in claim 1, is characterized in that, described first intermediate portion and described cavity are all annular.
3. pump as claimed in claim 1 or 2, it is characterized in that, described inwall is tilt internal wall, and wherein said tilt internal wall is straight, or projection, or depression, or there is two or more radius, or be sinusoidal waveform shape, or be higher order polynomial waveform shape.
4. the pump as described in claims 1 to 3 any one, is characterized in that, described 3rd region of described first intermediate portion of described diaphragm element is effective pump region.
5. the pump as described in Claims 1-4 any one, is characterized in that, the described extended surface of described pump case comprises the region that size at least equals described diaphragm element.
6. the pump as described in claim 1 to 5 any one, is characterized in that, described diaphragm element comprises cocked bead.
7. the pump as described in claim 1 to 6 any one, is characterized in that, described extended surface comprises groove, to install the described cocked bead of described diaphragm element.
8. the pump as described in claim 1 to 7 any one, is characterized in that, described diaphragm element comprises and has four-range second intermediate portion; Wherein said second intermediate portion is thicker than other parts of described diaphragm element, and described 4th region of described second intermediate portion is less than the described first area of described cavity hatch end.
9. pump as claimed in claim 8, is characterized in that, described second intermediate portion is annular.
10. the pump as described in claim 1 to 9 any one, is characterized in that, described diaphragm element is made by elastic material.
11. pumps as claimed in claim 10, is characterized in that, described material is rubber and/or the one for llowing group of materials: chlorobutadiene, ethylene propylene diene rubber, fluorine rubber, silicon, thermoplastic elastomer (TPE) or nitrile.
12. pumps as described in claim 8 to 11 any one, it is characterized in that, the thickness proportion scope of other parts of described second intermediate portion and described diaphragm element is 2-15.
13. pumps as described in claim 1 to 12 any one, it is characterized in that, the proportion in described diaphragm element second area and described first intermediate portion the 3rd region is 1.5-10.
14. pumps as described in claim 1 to 13 any one, it is characterized in that, described second intermediate portion comprises inclined outer wall, and described inclined outer wall has the base portion being greater than top.
15. pumps as described in claim 1 to 14 any one, it is characterized in that, described second pump case comprises edge, and described edge is conical, or comprises towards one or more radiuses of described opening end.
16. 1 kinds, for the method for the dilatational elasticity of pumping diaphragm, comprising:
There is provided as weighed the pump required as described in 1 to 15 any one;
Described first intermediate portion to described diaphragm element applies reciprocating strokes motion, therefore a part for described diaphragm element is held between the described extended surface of described pump case and described second pump case slidably, and therefore described retained part can freely radially move and stretch.
Pump described in claim 1 to 15 any one is used for patient monitoring, monitoring of respiration or Anesthesia Monitoring equipment by 17..
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261726965P | 2012-11-15 | 2012-11-15 | |
| EP12192859.2 | 2012-11-15 | ||
| US61/726,965 | 2012-11-15 | ||
| EP12192859 | 2012-11-15 | ||
| PCT/EP2013/073949 WO2014076239A1 (en) | 2012-11-15 | 2013-11-15 | Extended elasticity of pump membrane with conserved pump force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104995407A true CN104995407A (en) | 2015-10-21 |
| CN104995407B CN104995407B (en) | 2017-05-03 |
Family
ID=47191611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380059817.XA Active CN104995407B (en) | 2012-11-15 | 2013-11-15 | Pump and method for extended elasticity of pump membrane |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2733355B1 (en) |
| CN (1) | CN104995407B (en) |
| WO (1) | WO2014076239A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952625A (en) * | 2016-06-29 | 2016-09-21 | 湖州安瑞能液压气动科技有限公司 | Pump diaphragm rabbet mechanism of diaphragm type automatic electric vacuum pump |
| CN105971861A (en) * | 2016-06-29 | 2016-09-28 | 湖州安瑞能液压气动科技有限公司 | Running mechanism of electric vacuum pump for diaphragm type automobile |
| CN108884822A (en) * | 2017-07-28 | 2018-11-23 | 深圳市大疆创新科技有限公司 | diaphragm pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019128680A1 (en) * | 2019-10-23 | 2021-04-29 | Qonqave Gmbh | Pump with a delivery device at least for delivering a fluid and such delivery device |
| DE102019128678A1 (en) * | 2019-10-23 | 2021-04-29 | Qonqave Gmbh | Delivery device at least for delivering a fluid and pump with such a delivery device |
| DE102019128679A1 (en) * | 2019-10-23 | 2021-04-29 | Qonqave Gmbh | Delivery device at least for delivering a fluid and pump with such a delivery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102007005019A1 (en) * | 2006-05-18 | 2007-12-06 | Continental Teves Ag & Co. Ohg | diaphragm pump |
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2013
- 2013-11-15 CN CN201380059817.XA patent/CN104995407B/en active Active
- 2013-11-15 WO PCT/EP2013/073949 patent/WO2014076239A1/en active Application Filing
- 2013-11-15 EP EP13193073.7A patent/EP2733355B1/en active Active
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| US3416461A (en) * | 1966-09-01 | 1968-12-17 | Hills Mccanna Co | Diaphragm pump |
| US4785719A (en) * | 1980-05-16 | 1988-11-22 | J. Wagner Gmbh | Diaphragm for high pressure pumps, compressors or the like |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105952625A (en) * | 2016-06-29 | 2016-09-21 | 湖州安瑞能液压气动科技有限公司 | Pump diaphragm rabbet mechanism of diaphragm type automatic electric vacuum pump |
| CN105971861A (en) * | 2016-06-29 | 2016-09-28 | 湖州安瑞能液压气动科技有限公司 | Running mechanism of electric vacuum pump for diaphragm type automobile |
| CN108884822A (en) * | 2017-07-28 | 2018-11-23 | 深圳市大疆创新科技有限公司 | diaphragm pump |
| WO2019019154A1 (en) * | 2017-07-28 | 2019-01-31 | 深圳市大疆创新科技有限公司 | Diaphragm pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014076239A1 (en) | 2014-05-22 |
| CN104995407B (en) | 2017-05-03 |
| EP2733355A1 (en) | 2014-05-21 |
| EP2733355B1 (en) | 2019-05-08 |
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