CN102762861A - Dosing pump - Google Patents
Dosing pump Download PDFInfo
- Publication number
- CN102762861A CN102762861A CN201180009711XA CN201180009711A CN102762861A CN 102762861 A CN102762861 A CN 102762861A CN 201180009711X A CN201180009711X A CN 201180009711XA CN 201180009711 A CN201180009711 A CN 201180009711A CN 102762861 A CN102762861 A CN 102762861A
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- Prior art keywords
- suction passage
- measuring room
- valve
- section
- pressure channel
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/06—Venting
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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
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to a dosing pump comprising a dosing chamber (14), a suction channel (32) communicating with the dosing chamber (14) and a pressure channel (20) communicating with the dosing chamber (14), means for popping gas bubbles being arranged in the suction channel.
Description
Technical field
The present invention relates to a kind of metering pump as described in the preamble as claimed in claim 1.
Background technique
Metering pump is generally positive displacement pump and has piston or the film as detrusor, and detrusor is through the drive motor motion.Detrusor pushes volume with predetermined degree in measuring room, thereby this volume is outwards exported from measuring room.Measuring room has two pipe joints usually: pressure connection and suction pipe joint, and wherein, pressure connection is extended usually vertically upward, and suction pipe joint is then extended from measuring room vertically downward.
For example can have problems during the such degassing material of hydrogen peroxide at weight feed.At this, in measuring room, not only when metering, have gas and form, and also have gas formation at the metering room off period of pump.But the bubble in the measuring room can cause: the liquid that can not weight feed preestablishes volume through measuring room.Therefore expectation can get into and the bubble that is present in the measuring room is derived from measuring room as soon as possible through suction passage.
Summary of the invention
In view of these problems, the objective of the invention is to, metering pump is optimized, make possibly exist or can quickly and reliably derive from measuring room through the bubble of suction passage entering.
The object of the invention is achieved through a kind of metering pump with the characteristic that provides like claim 1.Preferred embodiment provide by dependent claims and following description and accompanying drawing.
Have measuring room in known manner according to metering pump of the present invention, measuring room is connected with suction passage, medium to be supplied, and liquid particularly to be supplied gets into measuring room through suction passage.In addition, measuring room also is connected with pressure channel, is left from measuring room through pressure channel by the medium of metering pump supply.This supply or this pump-absorb action realize through detrusor in a conventional manner, and detrusor is arranged on the measuring room or in the measuring room.Detrusor can for example be made up of film or piston.
According to the present invention, in suction passage, be provided for disperseing the device of bubble, perhaps, suction passage is configured to, can will be dispersed into littler bubble through the bubble that suction passage gets into therein.When bigger bubble got into through suction passage, its risk was: these bigger bubbles can wall attached to suction passage on, and therefore rest in suction passage or the measuring room.If these bubbles are dispersed into littler bubble, its advantage is to have reduced the risk attached on the suction passage wall, and these littler bubbles can and further be climbed in the pressure channel through measuring room through suction passage.Preferably make the bubble fast rise of the valve downstream in suction passage in measuring room; Make bubble preferably the total kilometres time (time of suction stroke and compression stroke subsequently) 80% after arrive the outlet end of measuring room; Promptly arrive pressure channel; Particularly arrival is arranged in the delivery valve of pressure channel, thereby can near the terminal point of compression stroke, bubble be extruded from measuring room.Be used for disperseing the device of bubble to can be used as add ons (for example bump, rib or the like) and be arranged on suction passage, preferably be arranged on the downstream of valve in the suction passage or transfer valve.Alternatively, can the changes of section through suction passage realize bubbles dispersion or smash, thereby bigger bubble is dispersed into littler bubble.
Further preferably in suction passage, form changes of section for this reason,, be discontinuous in this preferred this changes of section, that is for example be ladder or platform form with as the device that disperses bubble.Preferably make the cross section bigger, that promptly enlarged of suction passage adjoin measuring room at this.The cross section of the suction passage that is preferably enlarged is greater than the cross section of the suction passage of conventional metered dose pump.That is to say, select cross section of suction passage normally to move needed cross section consciously at this, to improve the discharge of bubble greater than metering pump.On the cross section that enlarges, realize division to the bubble that rises.Therefore, streamwise sees, bigger bubble is at first on the wall attached to the one or more suction passages before the cross section that is positioned at expansion.That is to say that bubble at first keeps sticking on the wall in the narrow of suction passage.But because flowing and buoyancy in the suction stroke, the part bubble is divided on enlarged cross section, and is climbed in the measuring room as littler bubble subsequently, and passes measuring room arrival pressure channel.
Especially preferably the cross section with suction passage is expanded into the second bigger cross section from the first less cross section, and at this, the size of first section area is 0.3 times to 0.8 times of second section area.First section selection that preferably will be narrower at this is suitable with the cross section of the suction passage of the metering pump of routine, particularly minimum cross section basically.That is to say that the cross section that is connected in the expansion in downstream has been enlarged with respect to the cross-sectional sizes of the suction passage of known metering pump.
Further preferred this less cross section by the valve in the suction passage, be that the outlet of transfer valve defines.The narrowest position in this outlet expression suction passage.Thus, bubble is retained in this narrow positions with at first suspending, at the outlet end of this narrow positions, promptly on enlarged cross section, is divided, and is dispersed into littler bubble thus then.
Further preferred valve has the valve body that remains in the retainer
; Particularly ball body of valve, and less cross section defines through the rib of retainer or the free space between edge strip and the valve body.Retainer or spherical retainer have edge strip or the rib that streamwise extends, and valve body imports between these edge strips or the rib.These edge strips or rib are radially inwardly outstanding on downstream end, thereby constitute the axial stop part of valve body there.Flow of liquid to be supplied is crossed the free space between edge strip and the rib.The common cross-section of this free space has defined the less cross section before the enlarged cross section.Three or four such ribs or edge strip preferably are set, and they constitute retainer.
The preferred pressure passage leaves measuring room with respect to vertical axis inclination extension up in adjoining the first portion of measuring room.Through the pressure channel on the vertical top that is arranged on measuring room, i.e. the mode of execution of this inclination of output channel, can be implemented in do not go up basically in the zone of pressure channel possibly gather bubble, interface, horizontally extending top.Extension through this inclination provides the interface, top with respect to the vertical axis diagonally extending, and bubble rises along this interface.The extension bubble that is tilted to through this continues to rising along this surface, and therefore gets into pressure channel automatically, and in pressure channel, rises.To guarantee in this way: the bubble that accumulates in the measuring room upper end portion owing to buoyancy in the measuring room gets in the pressure channel reliably, and discharges as soon as possible from measuring room through pressure channel.
The further preferred second portion that vertically extends that in the first portion of downstream, connects at pressure channel.Therefore bubble can rise in this part of pressure channel unblockedly and can not gather.Can realize in this way not having bubble possibly assemble or adhere to its on, the part of horizontal stretching or the pressure channel of wall.
Preferably in the second portion of pressure channel, valve is set.This valve can be a safety check, like it the outlet side that is set at measuring room in this metering pump usually.In the suction stroke of detrusor in measuring room, this valve can prevent that medium to be supplied is back in the measuring room through pressure channel.This valve is arranged in the vertical component of pressure channel, thereby does not also advantageously have possibility to gather the face than the level of gross blowhole there basically.In addition, this set is favourable, because this valve is closed by gravity usually.
Further preferred correspondingly design feeds the suction passage of measuring room, makes suction passage in adjoining the first portion of measuring room, be tilted to extend down with respect to vertical axis and leaves measuring room.To realize thus: in this part of suction passage, do not have possibility to gather above the horizontal stretching of bubble basically.Or rather, because the extension of this inclination, the bubble in the suction passage can rise along the wall above being arranged in of the diagonally extending of suction passage and get into measuring room.Then, bubble can continue to rise and enter into pressure channel as described above there.
The further preferred second portion that vertically extends that in the first portion of the upper reaches, connects at suction passage.Therefore in this part, there is not face bubble, level that to gather above that yet.
In addition;, flatly be provided with from the outward extending passage of measuring room level, pipe joint and the possible suction passage and the valve of pressure channel to the pressure channel of diagonally extending and also have the first portion of suction passage also to allow in case of necessity at this with respect to the side of the center of measuring room or measuring room as known so far that kind.This is desirable based on the reason of structure aspects in most of the cases; Think that joint and valve provide enough structure spaces; Because be typically provided with detrusor (for example film) and driver thereof in a side of directly adjoining measuring room, thereby limited the structure space that is used for pipe joint and valve there.In addition, see along the stroke directions of detrusor particularly that the diameter of pipe joint and valve is usually greater than the width of measuring room.Thus, need make these parts lateral extension exceed the border of measuring room.
Further preferred in the second portion of suction passage, promptly in the vertically extending part of suction passage, valve is set.This valve can be a safety check as known conventional metering pump that kind.This safety check cuts out in compression stroke, and can prevent medium back flow to be supplied thus to suction passage, rather than gets into pressure channel.Usually this valve design is closed for utilizing gravity, therefore be particularly suitable for it is arranged in the channel part of vertical stretching.
About in pressure channel and the possible valve setting in suction passage, need to prove, a plurality of valves that series connection is provided with also can be set there.
Further the first portion of the first portion of preferred pressure passage and/or suction passage edge tilts with respect to vertical axis back to the direction of the detrusor of metering pump.Can be provided for sucking pipe joint (metering pump is connected with outside pipe-line system through pipe joint), particularly input and output valve or safety check with pressure channel with respect to the measuring room side direction in this way with staggering.Can these parts be set with staggering in a side of detrusor and driver thereof dorsad at this, have in this side enough be used for these parts, in particular for the structure space of valve.
Further preferred pressure passage and/or suction passage are connected with measuring room in the outer regions of measuring room.Preferred measuring room has the circular cross-section that around horizontal axis, preferably centers on the stroke axis of detrusor.At this, preferred suction passage and pressure channel minimum point and the peak at measuring room on the periphery of measuring room leaves measuring room, possibly not gather face bubble, that be positioned at top level thereby also do not form there.Therefore; Circular circumference through measuring room; Can make the face that is connected on the pressure channel inlet also rough ground extend and rise to peak, thereby make the bubble that accumulates in the there the inlet that can continue to rise up to pressure channel, then; Bubble can further rise in the first portion of slant dilation subsequently here and possibly connect in the vertical second portion above that, and leaves from measuring room.
Preferred pressure passage and possibly also have suction passage; First portion through its inclination extends to spend to the direction between 70 degree 20 with respect to the Vertical direction angulation; Further preferred angulation is spent between 60 degree 10, particularly spends between 60 degree 10.
In order to improve the discharge of bubble, the diameter of the first portion of preferred pressure passage and/or the first portion of suction passage further is preferably greater than 5mm greater than 4mm, is preferably greater than 6mm especially, for example is 6.5mm.Can guarantee that through the channel diameter of such size bigger bubble also can pass through passage fast, and can be attached in the passage.
Further the upper reaches of the detrusor of preferred pressure passage in being arranged at pressure channel have than diameter or the cross section bigger in the downstream of detrusor.Can realize making bubble to get in the pressure channel through valve as soon as possible through this mode of execution, and therefore make measuring room farthest not comprise bubble.Can once more pipeline section be reduced to traditional size in valve downstream.
In addition, preferably make valve and the valve in the suction passage in the pressure channel, be that perpendicular distance between the traditional safety check is as much as possible little.This means that these valves quilts near-earth as far as possible are arranged on the measuring room, so that make passage and the total volume and the path of treating supply fluid between two valves of adjoining measuring room as much as possible little.Through shortening in the pressure channel and the distance between the valve in the suction passage; Arrive reduce the valve of bubble from suction passage in the rise time of the valve in the pressure channel, thus this rise time is lower than suck and total kilometres time of compression stroke 80%.
Valve in the preferred pressure passage and the perpendicular distance between the valve in the suction passage are equal to or less than measuring room 2.5 times perpendicular to the maximum diameter of horizontal axis, and preferably are equal to or less than 2 times of this maximum diameter.Can realize the less distance between the valve through this design proposal.
According to another preferred embodiment, valve in the pressure channel and the perpendicular distance between the valve in the suction passage are promptly particularly adjoined the perpendicular distance between the safety check of measuring room, are equal to or less than the external diameter of the film that constitutes detrusor.This film outwards stretches the external diameter that surpasses measuring room with certain degree usually, because it is sealed in this zone and fixes.Because the distance between the valve is equal to or less than the external diameter of film; Therefore can obtain the much compacter structure of the metering head of measuring room on the whole; And especially make the volume between valve keep as much as possible little, this has foregoing good effect.
Description of drawings
According to accompanying drawing the present invention is done below and illustrate.In the accompanying drawings:
Fig. 1 shows the sectional view according to metering pump unit of the present invention,
Fig. 2 shows the amplification sectional view of the pump head of metering pump unit as shown in Figure 1.
Embodiment
This metering pump unit has the electric machine casing 2 that pump head 4 is installed on it in known manner.Drive motor 6 is set in electric machine casing 2, and it drives link rod 10 through transmission device 8, makes link rod 10 make the center region to-and-fro motion linearly of film 12 thus.
Constitute detrusor on the measuring room 14 of film 12 in pump head 4.Measuring room 14 constitutes specific volume, and it can dwindle and increases through the motion of film 12, in each stroke of film 12, can supply specific volume through the measuring room 14 of pump thus.
In addition, for confirming enough big size in the cross section of the first portion 22 of pressure channel 20, in the present embodiment promptly, the diameter in cross section is greater than 5mm, thereby makes bigger bubble also can pass through the first portion 22 of this pressure channel 20 without barrier.Vertical component 24 is connected in the first portion 22 in downstream, in this vertical component 24, is provided with two valves that are one another in series 26,28.Because the vertical stretching of second portion 24 also can be risen bubble in this second portion 24 unblockedly.In addition, valve 26 and 28 can be closed through gravity in known manner.
Pressure channel 20 turns round from measuring room 24 on the peak of measuring room 14.Suction passage 32 is relatively perpendicular, promptly feeds in the measuring room 14 in the underpart.Suction passage 32 has first portion 34 and the second portion 36 that is connected this first portion 34 at the upper reaches.First portion as pressure channel 20 is the same, and the first portion 34 of suction passage 32 is tilted to respect to vertical axis X and horizontal axis Y with its longitudinal axis B and extends below.In the embodiment shown in this, longitudinal axis B becomes miter angle with respect to horizontal axis Y with vertical axis X equally, but also can be be preferably placed at the angle scope 15 degree and 70 degree between in of this angle Selection for other.Importantly, the first portion 34 of suction passage 32 is not horizontally extending, neither be horizontally extending the same as the first portion 22 of pressure channel 20 according to the present invention.The slant dilation of the first portion 34 through suction passage 32 will be realized: the bubble in suction passage 32 can be risen in this section unblockedly.They are in the upper wall slip and entering measuring room 14 of this part 34, and bubble rises in the first portion 22 of pressure channel 20 there then, and outwards is transported to pressure connection 16 through this first portion 22.Therefore, suction passage 32 does not have bubble can gather interface, top on it, horizontally extending basically yet.First portion 34 through making suction passage 32 is along the direction diagonally extending of film 12 and electric machine casing 2 dorsad; Can also realize suction pipe joint 18 and valve 30 and 38 are provided with along substantially horizontal and the measuring room 14 in the pump head 4 towards the side in suction passage 32 with staggering, thereby these parts are not clashed with the setting of film.
In the first portion 34 of the upper reaches at suction passage 32, be connected with the vertically second portion 36 of X extension, series connection therein is provided with two valves 30 and 38.Valve 30 and 38 also is two safety check that can close through gravity in known manner.
In addition, in suction passage 32, be provided for being dispersed in the device of the bubble in the flow of liquid of entering.In this case, this device is realized with the form of enlarged cross section.Valve 30 is made up of ball body of valve, and it is maintained in the spherical retainer 31.This sphere retainer is made up of the rib or the edge strip that are parallel to vertical axis X extension, and at this, the free space 33 between these edge strips has defined the stream through valve.Defined the first less cross section jointly at the free space 33 of spheroid circumference neutralization between the edge strip of spherical retainer 31, this first cross section is less than the cross section of the suction passage that is connected in downstream 32.That is to say, in the output terminal formation enlarged cross section of free space 33.This enlarged cross section is designed to, and the total cross-sectional area that preferably makes free space 33 is between 0.3 times to 0.8 times of the section area of the suction passage that is connected in downstream 32.Can realize through this mode of execution; Make the bubble that gets into through suction pipe joint 18 in free space 33 attached on its wall; On the enlarged cross section of going to the suction passage 32 that is connected in downstream, it is split into single littler bubble then; Thereby can bigger bubble be separated into littler bubble at this, then, these littler bubbles can pass through suction passage 32, measuring room 14 and pressure channel 20 fast rise.
In addition; Stagger through the vertical component 24 of pressure channel 20 or suction passage 32 and 36 side direction; Vertically X is arranged on first valve 26 on the pressure side relative to one another; First valve 30 is arranged on the suction side; So that it is as much as possible little that distance between volume and two valves 26 and 30 is remained on, the distance between these two valves outside the measuring room 14 particularly promptly mainly is in the length of the pressure channel 20 at valve 26 upper reaches with in the length of the suction passage 32 in valve 30 downstream.The advantage of doing like this is; When pump is static; Can make and in this zone, treat supplying media or treat that the volume of supply fluid is as much as possible little; Thereby under the situation of degassing medium, also only there is the gas of minute quantity to discharge, thereby makes the bubble quantity and bubble and the size that accumulate in this zone all remain on as much as possible little.In shown embodiment, equal the external diameter of film 12 apart from a between the input side of the outlet side of valve 30 and valve 26.Thisly be substantially equal to or between valve 26 and 30, advantageously have minimum perpendicular distance less than being arranged so that of film 12 external diameters apart from a.In addition, this size apart from a is equal to or less than 2.5 times of maximum diameter of measuring room 14, and further preferred distance a is less than 2 times of the maximum diameter of measuring room 14.
Reference numerals list
2 electric machine casings
4 pump heads
6 drive motor
8 transmission devices
10 link rods
12 films
14 measuring rooms
16 pressure connections
18 suction pipe joints
20 pressure channels
The first portion of 22 pressure channels 20
The second portion of 24 pressure channels 20
26,28,30 valves
31 spherical retainers
32 suction passages
33 free spaces
The first portion of 34 suction passages 32
The second portion of 36 suction passages 32
38 valves
The X vertical axis
The Y horizontal axis
The longitudinal axis of the first portion 22 of A pressure channel 20
The longitudinal axis of the first portion 34 of B suction passage 32
The a distance
The maximum diameter of d measuring room 14.
Claims (14)
1. metering pump; Has measuring room (14); Suction passage (32) that is connected with this measuring room (14) and the pressure channel (20) that is connected with this measuring room (14) is characterized in that, in said suction passage (32), are provided for disperseing the device of bubble.
2. metering pump as claimed in claim 1 is characterized in that, structure is preferably the expansion of discontinuous cross section as the said device that is used to disperse bubble in said suction passage (32).
3. metering pump as claimed in claim 2 is characterized in that, the cross section of said suction passage (32) is expanded into the second bigger cross section from the first less cross section, and wherein, the area in this first cross section equals 0.3 times to 0.8 times of area in said second cross section.
4. like claim 2 or 3 described metering pumps; It is characterized in that; The cross section of said suction passage (32) is expanded into the second bigger cross section from the first less cross section, and wherein, said less cross section is by the outlet definition of the valve (30) in the said suction passage (32).
5. metering pump as claimed in claim 4; It is characterized in that; Said valve (30) has the valve body that remains in the retainer, and said less rib and free space (33) said valve body between the definition of cross section through being positioned at retainer (31).
6. like the described metering pump of each claim of front; It is characterized in that said pressure channel (20) up leaves from said measuring room (14) extension with respect to vertical axis (X) inclination in the first portion that adjoins said measuring room (14) (22).
7. metering pump as claimed in claim 6; It is characterized in that; The second portion (24) of said pressure channel (20) is connected with the first portion (22) of said pressure channel (20) in downstream; This second portion (24) vertically (X) extends, and at least one valve (26) preferably is set therein.
8. like the described metering pump of each claim of front; It is characterized in that said suction passage (32) is tilted to ground to extend from said measuring room (14) with respect to said vertical axis (X) and leaves in the first portion that adjoins said measuring room (14) (34).
9. metering pump as claimed in claim 8; It is characterized in that; The second portion (36) of said suction passage (32) is connected with the first portion (34) of said suction passage (32) at the upper reaches; This second portion (36) vertically (X) extends, and at least one valve (30) preferably is set therein.
10. like each described metering pump in the claim 6 to 9; It is characterized in that the first portion (22) of said pressure channel (20) and/or the first portion (34) of said suction passage (32) edge tilt with respect to said vertical axis (X) back to the direction of the detrusor (12) of this metering pump.
11., it is characterized in that said pressure channel (20) and/or said suction passage (32) are connected with said measuring room (14) like the described metering pump of each claim of front in the outer regions of said measuring room (14).
12. like the described metering pump of each claim of front; It is characterized in that; The diameter of the first portion (22) of said pressure channel (20) and/or the first portion (34) of said suction passage (32) is preferably greater than 5mm greater than 4mm, further is preferably greater than 6mm.
13. like the described metering pump of each claim of front; It is characterized in that; Valve (26) in the said pressure channel (20) and the perpendicular distance (a) between the valve (30) in the said suction passage (32) are equal to or less than 2.5 times of maximum diameter of said measuring room (14), preferably are equal to or less than 2 times of maximum diameter of said measuring room (14).
14. like the described metering pump of each claim of front; It is characterized in that valve (26) in the said pressure channel (20) and the perpendicular distance (a) between the valve (30) in the said suction passage (32) are equal to or less than the external diameter of the film (12) that constitutes detrusor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10001641.9 | 2010-02-18 | ||
| EP20100001641 EP2362101B1 (en) | 2010-02-18 | 2010-02-18 | Dosing pump |
| PCT/EP2011/000724 WO2011101121A1 (en) | 2010-02-18 | 2011-02-16 | Dosing pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102762861A true CN102762861A (en) | 2012-10-31 |
| CN102762861B CN102762861B (en) | 2016-05-18 |
Family
ID=42173598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180009711.XA Active CN102762861B (en) | 2010-02-18 | 2011-02-16 | Measuring pump |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120312399A1 (en) |
| EP (1) | EP2362101B1 (en) |
| JP (1) | JP5784636B2 (en) |
| CN (1) | CN102762861B (en) |
| WO (1) | WO2011101121A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105164417A (en) * | 2014-03-19 | 2015-12-16 | 西蒙斯发展公司 | Multi-port metering pump assembly and related methods |
| CN107989766A (en) * | 2017-11-27 | 2018-05-04 | 浙江艾力芬特泵业科技有限公司 | Pump head for plunger type metering pump and outlet valve with exhaust structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2706523T3 (en) * | 2015-06-22 | 2019-03-29 | Seko Spa | Purge valve and automatic purge pump provided with such valve |
| CN106438264B (en) * | 2015-08-04 | 2018-11-02 | 浙江福爱电子有限公司 | A kind of pulse pump |
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| US6139286A (en) * | 1998-09-28 | 2000-10-31 | Pulsafeeder, Inc. | Automatic venting back pressure valve |
| US6247487B1 (en) * | 1999-10-27 | 2001-06-19 | Ford Global Tech., Inc. | Valve assembly |
| EP2362102B1 (en) * | 2010-02-18 | 2012-10-03 | Grundfos Management A/S | Metering pump aggregate |
-
2010
- 2010-02-18 EP EP20100001641 patent/EP2362101B1/en active Active
-
2011
- 2011-02-16 JP JP2012553217A patent/JP5784636B2/en active Active
- 2011-02-16 CN CN201180009711.XA patent/CN102762861B/en active Active
- 2011-02-16 US US13/579,677 patent/US20120312399A1/en not_active Abandoned
- 2011-02-16 WO PCT/EP2011/000724 patent/WO2011101121A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2500473A1 (en) * | 1975-01-08 | 1976-07-15 | Franz Orlita | Piston diaphragm miniature dosing pump - two in line small dia pistons are fork controlled |
| US4336000A (en) * | 1979-01-03 | 1982-06-22 | Radiometer A/S | Liquid dosage piston pump |
| US6354819B1 (en) * | 1996-06-14 | 2002-03-12 | United States Filter Corporation | Diaphragm pump including improved drive mechanism and pump head |
| JPH11337385A (en) * | 1998-04-21 | 1999-12-10 | Millipore Corp | Accurate liquid dispenser |
| US6264436B1 (en) * | 1999-05-11 | 2001-07-24 | Milton Roy Company | Multifunction valve |
| CN1685156A (en) * | 2002-09-27 | 2005-10-19 | 脉动供料机股份有限公司 | Metering pump with gas removal device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105164417A (en) * | 2014-03-19 | 2015-12-16 | 西蒙斯发展公司 | Multi-port metering pump assembly and related methods |
| CN105164417B (en) * | 2014-03-19 | 2019-01-29 | 白骑士液体处理公司 | Multiport metering pump assembly and correlation technique |
| CN107989766A (en) * | 2017-11-27 | 2018-05-04 | 浙江艾力芬特泵业科技有限公司 | Pump head for plunger type metering pump and outlet valve with exhaust structure |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120312399A1 (en) | 2012-12-13 |
| CN102762861B (en) | 2016-05-18 |
| JP5784636B2 (en) | 2015-09-24 |
| JP2013519831A (en) | 2013-05-30 |
| EP2362101B1 (en) | 2013-07-03 |
| EP2362101A1 (en) | 2011-08-31 |
| WO2011101121A1 (en) | 2011-08-25 |
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