WO2016173800A1 - Pumpenvorrichtung - Google Patents
Pumpenvorrichtung Download PDFInfo
- Publication number
- WO2016173800A1 WO2016173800A1 PCT/EP2016/057157 EP2016057157W WO2016173800A1 WO 2016173800 A1 WO2016173800 A1 WO 2016173800A1 EP 2016057157 W EP2016057157 W EP 2016057157W WO 2016173800 A1 WO2016173800 A1 WO 2016173800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- pump ring
- ring
- eccentric
- projections
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C5/00—Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable
- F01C5/02—Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable the resiliently-deformable wall being part of the inner member, e.g. of a rotary piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C5/00—Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the invention relates to a pump device for pumping a liquid.
- a pump device or pump is understood here to mean a working machine which serves to convey liquids. This also applies
- Liquid-solid mixtures, pastes and low-gas liquids During operation of the pump device, the drive work is converted into the kinetic energy of the transported liquid.
- the pumping device shown is also referred to as orbital pump, rotary diaphragm pump or peristaltic pump.
- the pump device can be used to direct a liquid from a reservoir, for example a tank, into a desired environment, for example into an exhaust tract of an internal combustion engine.
- a pump device which is designed as an orbital pump, which has a pump housing with at least one inlet and at least one outlet, wherein on the
- an eccentric is arranged rotatably relative to the pump housing.
- an electric drive is provided between the eccentric and the pump housing.
- a deformable membrane which, together with the pump housing, delimits a delivery path from the at least one inlet to the at least one outlet and forms at least one seal of the delivery path.
- the at least one seal is displaceable by a movement of the eccentric for conveying along the conveying path.
- the publication WO 2012/126544 A1 describes a metering system for metering a liquid with a pump device, which via a with an electric motor drivable eccentric drive has.
- the pump device which has two directions of delivery, has a pump ring and a stationary ring, which is arranged relative to the pump ring and the eccentric drive so that between the stationary ring and the pump ring, a pump chamber is formed, which changes its shape upon rotation of the electric motor, to pump a liquid to be dispensed through the pump chamber.
- the document describes the operating principle of an orbital pump.
- a pump device for pumping a liquid with a hydraulic housing in which a pump ring with a tread, a
- the eccentric is to be driven by a shaft, which in turn is typically driven by a controllable drive, for example an electric motor.
- the shaft further defines an axial and a radial direction. The eccentric is relative to
- Hydraulic housing rotatably formed and arranged such that it in
- the pump ring which is also referred to as a membrane, is deformable and at least partially defines a pump chamber, for example an annular pump chamber.
- first port and a second port are provided, each in fluid communication with the pump chamber.
- the hydraulic housing comprises an annular portion and a first and second lateral portion, wherein the two lateral portions are arranged opposite to each other, and wherein the pump ring is at least partially disposed between the two lateral portions of the hydraulic housing.
- a running surface of the pump ring ie the surface of the pump ring, with which this against the hydraulic housing, in particular the annular portion of the Hydraulic housing, is pressed, and whereby the fluid is moved along the tread and runs along this, has a profile which has a contour with at least partially changing curvature in such a way that the curvature towards the ends of the tread at least partially increases ,
- the running surface of the pump ring can also be referred to as the delivery chamber surface of the pump ring.
- the presented contour causes a reduction of the flatness in the running surface of the pump ring and achieves a linearization of the pressure distribution on the running surface.
- Different configurations of the contour can be selected. For example, starting from the center of the tread, a large radius may be started and decreased toward the ends thereof, continuously or in steps.
- the pump ring comprises a base from which two first projections extend on a side remote from the pump ring carrier and two second projections on a side facing the pump ring carrier, wherein the tread is bounded by side walls of the first projections.
- At least one of the first and second protrusions comprises a first portion and a second portion, wherein the first portion connects the second portion to the base, wherein the first portion extends to a greater extent in the radial direction than in the axial direction and the second portion extends to a greater extent in the axial direction than in the radial direction. It can be provided that only one of the first and second protrusions
- Pump ring carrier and pump ring The two components can also be glued together, for example by means of a primer. It can further be provided that the profile of the tread has a central region in the axial direction without curvature.
- Pump ring carrier between 1, 5 and 5.0, preferably between 1, 5 and 3.5. This has proven to be advantageous for the function of the pump device,
- the coverage of the pump ring laterally of the pump ring carrier more than 0.9 mm, for example, 1, 0 mm amount. Covered herein is the
- the pump ring is typically made of a deformable material.
- a deformable material for this purpose, for example, offers an elastomeric material, which ensures a permanent deformability.
- Elastomeric materials are available in different degrees of hardness, so that a needs-based design of the pump device can be realized.
- the Shore hardness of the pump ring is between 55 and 70 Shore.
- the pump ring may be made of a material whose glass transition temperature is below -20 ° C.
- the presented pump device has, at least in some of the embodiments, advantages over known pump devices. So a high density is achieved, which allows a fast and large pressure build-up. The structure also serves to increase the service life.
- FIG. 1 in a sectional view an embodiment of the described
- FIG. 2 shows a side view of the pump device of FIG. 1, FIG.
- FIG. 3 is a sectional view of the pump device of Fig. 1,
- FIG. 5 shows a detail of the pump device of FIG. 1.
- Fig. 1 shows a sectional view of an embodiment of the presented
- Pumping device which is generally designated by the reference numeral 10 and designed as an orbital pump.
- the illustration shows a hydraulic housing 12, a pump ring 14, a pump ring carrier 16, an eccentric 18, a shaft 20, a drive 140, a first bearing 1 10, a second bearing 1 18, a bushing 1 12, which also serves as a ring 1 12th can be referred to, a clamping member 1 14, which also as
- Separating chamber pin can be designated, an eccentric bearing 1 16, and a sealing ring 120, which can also be referred to as a sealing disc 120.
- the first bearing 1 10 is mounted in this embodiment as a floating bearing, and the second bearing 1 18 as a fixed bearing. This results in a good storage.
- eccentric bearing 1 16 a needle bearing can be used. This has a small extent in the radial direction. There are other types of storage as well For example, rolling bearings possible.
- the eccentric bearing 1 16 allows a low-friction transmission of forces between the rotating eccentric 18 and the rotatably mounted pump ring 14 and pump ring carrier 16th
- the hydraulic housing 12 includes an annular portion 22 and a first lateral portion 24, which may also be referred to as a pump cover, and a second lateral portion 26, which also serves as a motor flange or
- the two lateral sections 24, 26 are arranged opposite one another.
- the pump ring 14 is at least partially between the two side portions 24, 26 of the hydraulic housing 12.
- the annular portion 22 has a first collar 74 and a second collar 75th
- the drive 140 has a stator assembly 145 and a rotor assembly 146.
- the driver 140 is partially attached to a tubular portion 170 of the second lateral portion 26
- the pump housing 12 has a locking member 27 which is adapted to lock during insertion of the clamping member 1 14 in the pump housing 12 and the clamping member 1 14 axially secure. The insertion of the clamping member 1 14 can be done prior to assembly of the drive 140.
- the pump ring 14 is deformable and may be formed of an elastomeric material or other deformable material.
- FIG. 2 shows a side view of the pump device 10 of FIG. 1.
- FIG. 3 shows a cross-section through the pump device 10, as seen along the section line III - III of FIG. 2.
- a first port 51 and a second port 52 are provided, and these ports 51, 52 are in fluid communication with a pumping chamber 57 between the annular portion 22 of the
- Hydraulic housing and a running surface 46 of the pump ring is formed and annular in the illustration of FIG. 3 from the first port 51 in
- the pump chamber 57 is in Section, which extends from the first port 51 counterclockwise to the second port 52 out through the clamping member 1 14 deactivated by the clamping member 1 14, the tread 46 of the pump ring 14 statically pressed against the annular portion 22 of the hydraulic housing 12 and thereby a fluid flow prevented or at least greatly reduced by this section.
- the area in which the clamping member 1 14 presses the running surface 46 of the pump ring 14 against the annular portion 22 is also referred to below as clamping member area 45.
- the eccentric 18 sits on the shaft 20 and is driven by this.
- the shaft 20 in turn serves the drive 140, typically a motor or
- a controllable drive 140 is provided as drive 140.
- the shaft 20 is thereby rotated about its longitudinal axis 21, which defines an axial direction of the pump device 10.
- the eccentric 18 is thus also moved in a rotational movement about the longitudinal axis of the shaft 20.
- This movement of the eccentric 18 is transmitted via the bearing 1 16 and the pump ring carrier 16 to the pump ring 14.
- the pump ring carrier 16 and the pump ring 14 are rotationally fixed relative to the hydraulic housing 12, but they are locally moved closer to the annular portion 22 or further depending on the rotational position of the eccentric 18.
- Fig. 3 shows the eccentric 18 in a direction indicated by an arrow 19, in the example shown in the direction 9 o'clock, ie the area of the eccentric 18 with the largest radial extent points in the direction of arrow 19.
- the pump device 10 also works in the reverse direction by the direction of rotation of the eccentric 18 is reversed.
- FIG. 4 shows a sectional view of the pump ring 14 from FIG. 1. It can be seen the profile of the pump ring 14 and the pump ring carrier 16, and the
- Sectional view corresponds to a longitudinal section through the pump device 10.
- the pump ring 14 is connected to the pump ring carrier 16, for example by means of gluing.
- the running surface 16 of the pump ring 14 is on the of
- Pump ring carrier 16 opposite side of the pump ring 14 is provided. This tread 46 is pressed in the pump chamber 57 in response to the rotational position and rotational movement of the eccentric 18 against the annular portion 22 or pulled away from it.
- contour of the tread 46 at least one
- a first radius r1 and a second radius r2 are drawn in, and it can be seen that the first radius r1 is greater than the second radius r2, which is located closer to the end 132.
- the pump ring 14 comprises a base 38, of which on a side remote from the pump ring carrier 16 side two first projections 28 and on a pump ring carrier 16 side facing two second projections 42nd
- the running surface 46 is bounded by side walls 50 of the first projections 28.
- the first and second protrusions 28, 42 each have a first portion 80, 180 and a second portion 82, 182, the first portion 80, 180 connecting the second portion 82, 182 to the base 38, respectively. It can be seen that the first portion 80, 180 extends to a greater extent in the radial direction than in the axial direction and the second portion 82, 182 extends to a greater extent in the axial direction than in the radial direction. In other words, the first portion 80, 180 at least partially has a smaller axial extent than the second portion 82, 182nd
- the two second projections 42 close to the base 38 of the pump ring 14 in each case in the region of the transition to the base 38 an angle 90 of about 80 °.
- an integrally formed on the pump ring carrier 16 tongue 100 projects into the region between the two second portions 42 of the pump ring 14th
- the cover of the pump ring carrier 14 laterally of the pump ring carrier 16, d. H. in the region of the first portion 180 of the second projection 42, is about 1, 0 mm. This means that the thickness of the pump ring carrier 14 in this range is about 1.0 mm. But you can also choose other coverages or strengths. A cover of more than 0.9 mm has been found suitable
- the pump ring 14 in the region of the two lateral portions 24, 26 of the hydraulic housing 12 in cross section in each case an S-shaped curve 32 with a convex portion 34 and a concave portion 36, wherein the convex portion 34 in the radial direction of the shaft compared to the concave portion 36 is further out.
- the tongue 100 may in each case be formed in the area between the base 38 and the second projection 42 with a curvature which has a radius R at least in regions.
- a width of the pump ring carrier 16 is indicated by B.
- the width of the pump ring carrier 16 is understood to be the width of the region of the pump ring carrier 16 which is effective in the compression of the pump ring 14. in the
- this is the area of the pump ring carrier 16 which bears against the base 38 of the pump ring 14, and the width of the pump ring carrier 16 corresponds to the width of the tongue 100.
- FIG. 5 A detail of the pump device 10 of FIG. 1 is shown in FIG. 5.
- the illustration shows that through the annular portion 22 and the two lateral portions 24, 26 of the hydraulic housing 12 cavities 60 are defined, in which the first projections 28a, 28b are compressed.
- the left first protrusion 28a is in contact with the second lateral portion 26 and the right lateral portion 28b in contact with the first lateral portion 24.
- At least one clearance 62 remains in the cavities 60 when the first protrusions 28 are compressed.
- a left first sealing nose 70a is provided on the annular portion 22 of the hydraulic housing 12 in the region of the left first projection 28a, and a right first sealing nose 70b is provided in the region of the right first projection 28b.
- a left second sealing nose 72a is provided on the second lateral section 26 in the area of the left first projection 28a and a right second sealing nose 72b on the first lateral section 24 in the region of the right first projection 28b.
- the left first sealing nose 70a lies opposite the left second sealing nose 72a in the axial direction at least in some areas.
- the Right first sealing nose 70b is the right second sealing nose 72b in the axial direction at least partially opposite.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112016001959.9T DE112016001959A5 (de) | 2015-04-29 | 2016-03-31 | Pumpenvorrichtung |
| CN201680014317.8A CN107429688B (zh) | 2015-04-29 | 2016-03-31 | 泵设备 |
| US15/557,124 US10533419B2 (en) | 2015-04-29 | 2016-03-31 | Pump device with pump ring having curved contact portion |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015106612.2 | 2015-04-29 | ||
| DE102015106612.2A DE102015106612A1 (de) | 2015-04-29 | 2015-04-29 | Pumpenvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016173800A1 true WO2016173800A1 (de) | 2016-11-03 |
Family
ID=55661417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2016/057157 Ceased WO2016173800A1 (de) | 2015-04-29 | 2016-03-31 | Pumpenvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10533419B2 (de) |
| CN (1) | CN107429688B (de) |
| DE (2) | DE102015106612A1 (de) |
| WO (1) | WO2016173800A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202018103394U1 (de) | 2018-06-15 | 2018-06-21 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pumpenvorrichtung |
| WO2019238351A1 (de) | 2018-06-15 | 2019-12-19 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pumpenvorrichtung sowie verfahren zum zumindest lokalen abdichten der pumpenvorrichtung |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10907626B2 (en) | 2017-02-16 | 2021-02-02 | Biosense Webster (Israel) Ltd. | Peristaltic pump with reduced triboelectric effects |
| DE102017104395A1 (de) | 2017-03-02 | 2018-09-06 | Qonqave Gmbh | Pumpenvorrichtung zu einer Förderung zumindest eines Fördermittels |
| US11698059B2 (en) | 2018-12-29 | 2023-07-11 | Biosense Webster (Israel) Ltd. | Disposable dual-action reciprocating pump assembly |
| US11795941B2 (en) | 2018-12-29 | 2023-10-24 | Biosense Webster (Israel) Ltd. | Using silicone o-rings in dual action irrigation pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2945042A1 (de) * | 1979-11-08 | 1981-05-21 | Erich 7812 Bad Krozingen Becker | Membranpumpe |
| WO2012126544A1 (de) | 2011-03-19 | 2012-09-27 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Dosiersystem |
| DE102013104245A1 (de) | 2013-04-26 | 2014-10-30 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren zum Betrieb einer Vorrichtung zur dosierten Bereitstellung einer Flüssigkeit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB583578A (en) * | 1944-11-04 | 1946-12-20 | Kenneth Albert Braybrook | Improvements in rotary pumps and engines |
| US3408947A (en) * | 1967-03-14 | 1968-11-05 | William J Easton Jr | Diaphragm pump with single compression roller |
| US4332534A (en) | 1978-12-14 | 1982-06-01 | Erich Becker | Membrane pump with tiltable rolling piston pressing the membrane |
| GB2495937A (en) * | 2011-10-25 | 2013-05-01 | Watson Marlow Ltd | Peristaltic pump head with auxiliary leakage chamber |
| JP5861474B2 (ja) * | 2012-01-30 | 2016-02-16 | セイコーエプソン株式会社 | ポンプ装置 |
| US9889876B2 (en) | 2015-11-23 | 2018-02-13 | Ford Global Technologies, Llc | Methods and systems for controlling steering response and steering torque feedback based on steering position |
-
2015
- 2015-04-29 DE DE102015106612.2A patent/DE102015106612A1/de not_active Withdrawn
-
2016
- 2016-03-31 US US15/557,124 patent/US10533419B2/en active Active
- 2016-03-31 WO PCT/EP2016/057157 patent/WO2016173800A1/de not_active Ceased
- 2016-03-31 DE DE112016001959.9T patent/DE112016001959A5/de active Pending
- 2016-03-31 CN CN201680014317.8A patent/CN107429688B/zh active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2945042A1 (de) * | 1979-11-08 | 1981-05-21 | Erich 7812 Bad Krozingen Becker | Membranpumpe |
| WO2012126544A1 (de) | 2011-03-19 | 2012-09-27 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Dosiersystem |
| US20140017094A1 (en) * | 2011-03-19 | 2014-01-16 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Metering system |
| DE102013104245A1 (de) | 2013-04-26 | 2014-10-30 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren zum Betrieb einer Vorrichtung zur dosierten Bereitstellung einer Flüssigkeit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202018103394U1 (de) | 2018-06-15 | 2018-06-21 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pumpenvorrichtung |
| WO2019238351A1 (de) | 2018-06-15 | 2019-12-19 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pumpenvorrichtung sowie verfahren zum zumindest lokalen abdichten der pumpenvorrichtung |
| DE102018114455A1 (de) | 2018-06-15 | 2019-12-19 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pumpenvorrichtung sowie Verfahren zum zumindest lokalen Abdichten der Pumpenvorrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180045049A1 (en) | 2018-02-15 |
| CN107429688A (zh) | 2017-12-01 |
| DE112016001959A5 (de) | 2018-02-08 |
| DE102015106612A1 (de) | 2016-11-03 |
| CN107429688B (zh) | 2019-09-24 |
| US10533419B2 (en) | 2020-01-14 |
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