EP3199816A1 - Side-channel blower/aspirator with an improved impeller - Google Patents
Side-channel blower/aspirator with an improved impeller Download PDFInfo
- Publication number
- EP3199816A1 EP3199816A1 EP16153453.2A EP16153453A EP3199816A1 EP 3199816 A1 EP3199816 A1 EP 3199816A1 EP 16153453 A EP16153453 A EP 16153453A EP 3199816 A1 EP3199816 A1 EP 3199816A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blades
- impeller
- central body
- machine
- blade
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 description 17
- 230000002093 peripheral effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009424 underpinning Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D23/00—Other rotary non-positive-displacement pumps
- F04D23/008—Regenerative pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
Definitions
- the present invention relates to a side-channel blower / aspirator with an improved impeller.
- the impeller is enclosed into a casing in which an annular conduit is defined, in which the impeller blades rotate.
- the annular conduit has a suction mouth, through which a fluid (normally air) is aspirated and a delivery mouth through which the fluid is expelled.
- a fluid normally air
- a delivery mouth through which the fluid is expelled.
- the impellers used in side-channel machines are provided with rectilinear radial blades.
- the Applicant following research and experimentation activities, has observed that the shape of known impeller blades does not allow the operating principle described above to be exploited with full efficiency.
- the technical task underpinning the present invention is therefore to propose a side-channel blower / aspirator with an improved impeller that makes it able to offer better performance levels with respect to the known art.
- 1 indicates the side-channel blower / aspirator according to the invention.
- the proposed machine 1 comprises an impeller 2 improved with respect to machines of the prior art.
- the impeller 2 is provided with a plurality of peripheral blades 21 and is equipped with a central hub 22, fitted onto a shaft 11 (see in particular figure 2 ), which is placed in rotation by motor means of the known type, for example the electric motor 12 represented in figures 1 and 2 .
- the blades 21 of the impeller 2 are not rectilinear like those of the prior art but, on the contrary, have a particular curvature.
- the impeller 2 according to the invention is enclosed in a casing 13, 14 which internally defines an annular conduit C within which the blades 21 rotate, in the direction indicated by the arrow in figure 3 .
- the two parts of the channel C which are ideally separated by the plane orthogonal to the axis of rotation of the impeller 2 coinciding with the plane of symmetry of the machine 1, are called “side channels”.
- the casing is preferably made of two half-shells 13, 14, sealingly fixed, one of which is connected to the electric motor 12, while the other one constitutes a front cover.
- the aforementioned annular conduit C has a suction mouth 3 for aspirating fluid (in particular air) taken externally to the machine 1 and a delivery mouth 4 for allowing the fluid to exit from the machine 1 itself (see figure 3 ).
- the annular conduit C has a first section which, with respect to the advancement direction of the blades 21 in the conduit, goes from the suction mouth 3 to the delivery mouth 4.
- the annular conduit C further has a second section, which goes from the delivery mouth 4 to the suction mouth 3, within which, preferably, the blades 21 skim the internal walls of the section itself so as to limit the passage of fluid from the delivery mouth 4 to the suction mouth 3.
- the impeller 2 is equipped with blades 21 comprising at least one longitudinally curved portion, defining a substantially curved profile.
- such blades 21 each define a concavity 23 facing the advancement direction of the blades 21 within the conduit C.
- the blades 21 of the impeller 2 according to the invention are bent or curved, hence having a concave front surface 23, at least at the respective aforementioned curved portion.
- the section (or intersection) of the blades 21 of the impeller 2 taken along an ideal plane perpendicular to the axis of rotation of the impeller 2 defines, at the front surface 23, a curved and not rectilinear line.
- the impeller 2 may comprise a central body 24, preferably axial symmetric, for example discoidal, at the centre of which the aforementioned hub 22 is afforded and from which the blades 21 extend.
- the blades 21 originate from a circumferential portion 25 of the central body 24 and extend outwards, substantially lying in the plane of the central body 24 itself.
- each blade 21 includes a proximal portion 210 (i.e. more internal) joined to the central body 24 at its circumferential portion 25.
- the blades 21 have a curvature along their whole longitudinal extension; in this case, the whole side profile of the individual blade 21 has a continuous curvature, without rectilinear sections (see in particular figures 3 and 4 ).
- the blades may each be provided with one rectilinear portion and at least one curved portion, the latter being for example a longitudinal distal portion comprising the free end of the relative blade 21.
- the blades may be formed by a plurality of curved sections, defining cuspidal joining zones.
- the curved or partially curved conformation of the blades 21 allows the machine 1 to operate more efficiently with respect to the prior art, for the reasons illustrated below.
- the air found inside the annular channel receives, from the impeller 2, both a thrust forwards (see arrow A of figure 4 ) and a centrifugal thrust (see arrow B), i.e. away from the centre of rotation of the impeller 2 itself.
- the part of air thrust in the centrifugal direction which would tend to move radially away from the blades 21, is instead intercepted by the blades 21 themselves and projected forwards.
- the radial component of the fluid's motion field is in part deviated in the circumferential direction already by the actual blade before the fluid is subject to the action of the closing walls of the annular conduit C.
- the blades 21 of the impeller 2 are placed tangentially to the aforementioned circumferential portion 25 of the central body 24 (see in particular figure 4 ).
- the mentioned proximal portion 210 of the blade 21 extends from the circumferential portion 25 outwards and along a tangential direction to the circumferential portion 25 itself.
- proximal (or “base”) portion 210 of the blade 21 has a curvature such that it is tangential to the circumferential portion 25.
- part of the fluid contained in the annular conduit C tends to move forwards in the rotation direction along an ascending curve; instead, part of the fluid closer to the centre of rotation follows a descending curve until it moves in the retrograde direction upon reaching the internal area affected by the base of the blades 21 (see arrow D in figure 4 ).
- the blades 21 of the impeller 2 according to the invention being equipped at the base 210 of the aforementioned tangential bend at the joining circumference between blades 21 and central body 24, are able to intercept the aforementioned retrograde fluid and push it forwards, increasing the efficiency of the machine 1.
- each blade has, in addition to the longitudinal curvature described above, a second curvature along its transversal extension.
- each proposed impeller blade has the transversal curvature along its extension, particularly along its whole longitudinal extension and its whole transversal extension.
- the section (or intersection) of the blades 21 of the impeller 2 taken along a plane perpendicular to the diametral plane and parallel to the axis of rotation of the impeller 2 defines, at the front surface 23 itself, a curved and not rectilinear line.
- the blade is able to intercept and project forwards the air flows which would tend to laterally escape from the blade itself.
- the invention allows improved efficiency of the machine 1 with respect to the prior art.
- the blades 21 have a curvature such as to be tangential to a respective diametral plane which passes through the axis of the central body; in detail, the tangency point is located in the rear convex part of the blade 21.
- each blade 21 is contained in one of the two semi-spaces defined by an ideal diametral plane that joins the axis of the central body 24 to the joining zone between the blade 21 and the central body 24.
- the impeller 2 proposed may include a portion with an annular progression 26, i.e. a geometric surface of revolution about the axis of rotation.
- Such an annular portion 26 is incorporated into the blades 21 and extends starting from the circumferential portion 25 mentioned various times of the impeller, in a radial direction, and ends at a shorter distance than the longitudinal extension of the blades 21, for example, substantially half way along their length.
- the impeller 2 proposed may be made of die-cast aluminium or a polymeric material by injection moulding.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- The present invention relates to a side-channel blower / aspirator with an improved impeller.
- Side-channel (or even air ring) blowers / aspirators provided with an impeller that has a central body from which a plurality of peripheral blades extend are known.
- The impeller is enclosed into a casing in which an annular conduit is defined, in which the impeller blades rotate.
- The annular conduit has a suction mouth, through which a fluid (normally air) is aspirated and a delivery mouth through which the fluid is expelled. These machines can operate both as vacuum pumps and as compressors.
- The operation of this type of machines is based on the principle of the fluid flow caused by the thrust developed by the impeller blades within the annular conduit, during rotation.
- In detail, during rotation, the blades push the fluid forwards and, due to the mentioned centrifugal thrust, also outwards.
- The walls of the annular conduit then deviate the fluid again between one blade and another.
- The joint action of the blades and the walls of the annular conduit define a helical motion in the fluid itself.
- Currently, the impellers used in side-channel machines are provided with rectilinear radial blades.
- The Applicant, following research and experimentation activities, has observed that the shape of known impeller blades does not allow the operating principle described above to be exploited with full efficiency. The technical task underpinning the present invention is therefore to propose a side-channel blower / aspirator with an improved impeller that makes it able to offer better performance levels with respect to the known art.
- Such technical task is reached by the side-channel blower / aspirator obtained according to
claim 1. - Further characteristics and advantages of the present invention will become more apparent from the following indicative, and hence non-limiting, description of a preferred, but not exclusive, embodiment of the machine according to the invention, as illustrated in the accompanying drawings, in which:
-
figure 1 is an axonometric view of the machine according to the invention; -
figure 2 is an exploded view of the machine offigure 1 ; -
figure 3 is a front view of the machine, wherein the containment casing of the improved impeller has been uncovered; -
figure 4 is an enlarged detail of the previous figure, wherein an upper zone of the casing, the impeller and the annular conduit afforded in the casing itself are shown; -
figure 5 is an axonometric view of the impeller; -
figure 6 is a front view of the impeller; and -
figure 7 is a diametral sectional view of the impeller. - With reference to the mentioned
figures, 1 indicates the side-channel blower / aspirator according to the invention. - The proposed
machine 1 comprises animpeller 2 improved with respect to machines of the prior art. - The
impeller 2 is provided with a plurality ofperipheral blades 21 and is equipped with acentral hub 22, fitted onto a shaft 11 (see in particularfigure 2 ), which is placed in rotation by motor means of the known type, for example theelectric motor 12 represented infigures 1 and2 . - As will be explained in detail below and as can be seen from the appended figures, the
blades 21 of theimpeller 2 are not rectilinear like those of the prior art but, on the contrary, have a particular curvature. - The advantages offered by such a special conformation of the
blades 21 will be better understood following the description of some general aspects of themachine 1 in which such animpeller 2 is used. - The
impeller 2 according to the invention is enclosed in acasing blades 21 rotate, in the direction indicated by the arrow infigure 3 . - In more detail, the two parts of the channel C which are ideally separated by the plane orthogonal to the axis of rotation of the
impeller 2 coinciding with the plane of symmetry of themachine 1, are called "side channels". As shown infigure 2 , the casing is preferably made of two half-shells electric motor 12, while the other one constitutes a front cover. - According to an aspect of the prior art, the aforementioned annular conduit C has a
suction mouth 3 for aspirating fluid (in particular air) taken externally to themachine 1 and adelivery mouth 4 for allowing the fluid to exit from themachine 1 itself (seefigure 3 ). - In practice, through the action of the
blades 21 of theimpeller 2, the fluid is aspirated by thesuction mouth 3 and, after crossing the annular conduit C, is expelled through thedelivery mouth 4. - The annular conduit C has a first section which, with respect to the advancement direction of the
blades 21 in the conduit, goes from thesuction mouth 3 to thedelivery mouth 4. - In this first section, there is a free space between the
blades 21 in rotation and the internal wall of the annular conduit C, to allow, during use, the formation, within the fluid, of the main motion internal to themachine 1 mentioned during the discussion of the prior art. - The annular conduit C further has a second section, which goes from the
delivery mouth 4 to thesuction mouth 3, within which, preferably, theblades 21 skim the internal walls of the section itself so as to limit the passage of fluid from thedelivery mouth 4 to thesuction mouth 3. - As shown in the appended figures, the
impeller 2 according to the invention is equipped withblades 21 comprising at least one longitudinally curved portion, defining a substantially curved profile. - In detail,
such blades 21 each define aconcavity 23 facing the advancement direction of theblades 21 within the conduit C. - In practice, the
blades 21 of theimpeller 2 according to the invention, rather than being rectilinear, are bent or curved, hence having aconcave front surface 23, at least at the respective aforementioned curved portion. In other words, the section (or intersection) of theblades 21 of theimpeller 2 taken along an ideal plane perpendicular to the axis of rotation of theimpeller 2 defines, at thefront surface 23, a curved and not rectilinear line. More precisely, theimpeller 2 may comprise acentral body 24, preferably axial symmetric, for example discoidal, at the centre of which theaforementioned hub 22 is afforded and from which theblades 21 extend. Theblades 21 originate from acircumferential portion 25 of thecentral body 24 and extend outwards, substantially lying in the plane of thecentral body 24 itself. - In more detail, each
blade 21 includes a proximal portion 210 (i.e. more internal) joined to thecentral body 24 at itscircumferential portion 25. - In the preferential embodiment of the invention, shown in the appended figures, the
blades 21 have a curvature along their whole longitudinal extension; in this case, the whole side profile of theindividual blade 21 has a continuous curvature, without rectilinear sections (see in particularfigures 3 and4 ). - Alternatively, the blades may each be provided with one rectilinear portion and at least one curved portion, the latter being for example a longitudinal distal portion comprising the free end of the
relative blade 21. - According to a further, non-preferential, variation, the blades may be formed by a plurality of curved sections, defining cuspidal joining zones. The curved or partially curved conformation of the
blades 21 allows themachine 1 to operate more efficiently with respect to the prior art, for the reasons illustrated below. - As explained above, during the use of this type of machines, the air found inside the annular channel receives, from the
impeller 2, both a thrust forwards (see arrow A offigure 4 ) and a centrifugal thrust (see arrow B), i.e. away from the centre of rotation of theimpeller 2 itself. - Thanks to the curvature of the
blades 21 according to the invention, the part of air thrust in the centrifugal direction, which would tend to move radially away from theblades 21, is instead intercepted by theblades 21 themselves and projected forwards. - More precisely, the radial component of the fluid's motion field is in part deviated in the circumferential direction already by the actual blade before the fluid is subject to the action of the closing walls of the annular conduit C.
- In this way, a prevailing part of the volume of air included in the annular channel is thrust forwards by the
blades 21, allowing themachine 1 according to the invention to obtain improved performance levels with respect to known machines. - Note that known impeller blades, being rectilinear, are not able to "capture" air flows moving in the centrifugal direction within the annular conduit.
- Even known impellers equipped with blades formed by angular segments cannot obtain the efficiency provided by the proposed
impeller 2, since at the most they will be able to partially deviate centrifugal flows whereas theblades 21 according to the invention retain them much more and thrust them in the rotation direction. - In the preferred embodiment of the invention, the
blades 21 of theimpeller 2 are placed tangentially to the aforementionedcircumferential portion 25 of the central body 24 (see in particularfigure 4 ). - In detail, the mentioned
proximal portion 210 of theblade 21 extends from thecircumferential portion 25 outwards and along a tangential direction to thecircumferential portion 25 itself. - In other words, the proximal (or "base")
portion 210 of theblade 21 has a curvature such that it is tangential to thecircumferential portion 25. - This aspect is particularly advantageous, in terms of efficiency of use of the proposed
machine 1, for the reasons illustrated below. - As mentioned above, during the use of the
machine 1, within the annular conduit C swirls of fluid are developed due to the action of theblades 21 of theimpeller 2. - In detail, part of the fluid contained in the annular conduit C, furthest from the centre of rotation, tends to move forwards in the rotation direction along an ascending curve; instead, part of the fluid closer to the centre of rotation follows a descending curve until it moves in the retrograde direction upon reaching the internal area affected by the base of the blades 21 (see arrow D in
figure 4 ). - The
blades 21 of theimpeller 2 according to the invention, being equipped at thebase 210 of the aforementioned tangential bend at the joining circumference betweenblades 21 andcentral body 24, are able to intercept the aforementioned retrograde fluid and push it forwards, increasing the efficiency of themachine 1. - According to an optional embodiment of the invention (not depicted in the appended figures), each blade has, in addition to the longitudinal curvature described above, a second curvature along its transversal extension.
- Preferably, in this "double curvature" version, each proposed impeller blade has the transversal curvature along its extension, particularly along its whole longitudinal extension and its whole transversal extension.
- In other words, consider a diametral plane of the
impeller 2 which passes through a prefixed point of thefront surface 23 of ablade 21 of theimpeller 2. - The section (or intersection) of the
blades 21 of theimpeller 2 taken along a plane perpendicular to the diametral plane and parallel to the axis of rotation of theimpeller 2 defines, at thefront surface 23 itself, a curved and not rectilinear line. - Thanks to the second curvature, the blade is able to intercept and project forwards the air flows which would tend to laterally escape from the blade itself.
- Therefore, yet again, the invention allows improved efficiency of the
machine 1 with respect to the prior art. - Optionally, the
blades 21 have a curvature such as to be tangential to a respective diametral plane which passes through the axis of the central body; in detail, the tangency point is located in the rear convex part of theblade 21. - Preferably, each
blade 21 is contained in one of the two semi-spaces defined by an ideal diametral plane that joins the axis of thecentral body 24 to the joining zone between theblade 21 and thecentral body 24. - As shown in the figures, in particular in
figures 4 and5 , theimpeller 2 proposed may include a portion with anannular progression 26, i.e. a geometric surface of revolution about the axis of rotation. - Such an
annular portion 26 is incorporated into theblades 21 and extends starting from thecircumferential portion 25 mentioned various times of the impeller, in a radial direction, and ends at a shorter distance than the longitudinal extension of theblades 21, for example, substantially half way along their length. - Finally, by way of non-exhaustive example, the
impeller 2 proposed may be made of die-cast aluminium or a polymeric material by injection moulding.
Claims (7)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16153453T PL3199816T3 (en) | 2016-01-29 | 2016-01-29 | Side-channel blower/aspirator with an improved impeller |
DK16153453.2T DK3199816T3 (en) | 2016-01-29 | 2016-01-29 | SIDE CHANNEL BLOWER / SUCTION APPLIANCE WITH AN IMPROVED WING WHEEL |
EP16153453.2A EP3199816B1 (en) | 2016-01-29 | 2016-01-29 | Side-channel blower/aspirator with an improved impeller |
ES16153453T ES2881049T3 (en) | 2016-01-29 | 2016-01-29 | Side channel blower / vacuum with an improved impeller |
US15/415,282 US20170218971A1 (en) | 2016-01-29 | 2017-01-25 | Side-channel blower / aspirator with an improved impeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16153453.2A EP3199816B1 (en) | 2016-01-29 | 2016-01-29 | Side-channel blower/aspirator with an improved impeller |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3199816A1 true EP3199816A1 (en) | 2017-08-02 |
EP3199816B1 EP3199816B1 (en) | 2021-05-26 |
Family
ID=55521354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16153453.2A Active EP3199816B1 (en) | 2016-01-29 | 2016-01-29 | Side-channel blower/aspirator with an improved impeller |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170218971A1 (en) |
EP (1) | EP3199816B1 (en) |
DK (1) | DK3199816T3 (en) |
ES (1) | ES2881049T3 (en) |
PL (1) | PL3199816T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD860956S1 (en) * | 2017-03-31 | 2019-09-24 | Delta Electronics, Inc. | Impeller |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19955955A1 (en) * | 1999-11-19 | 2001-06-13 | Siemens Ag | Side channel machine e.g. high power fan |
DE10249244A1 (en) * | 2002-10-23 | 2004-05-06 | Dürr Dental GmbH & Co. KG | Impeller for a side channel compressor, for use by dentists, has a structured vane geometry with thickened radial inner ends to increase the generated underpressure |
EP1672222A2 (en) * | 2004-12-17 | 2006-06-21 | Gardner Denver Elmo Technology GmbH | Lateral channel compressor |
JP2011140884A (en) * | 2010-01-05 | 2011-07-21 | Teral Inc | Vortex blower |
US20130266434A1 (en) * | 2012-04-05 | 2013-10-10 | Gast Manufacturing, Inc | Impeller and Regenerative Blower |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3545890A (en) * | 1967-12-29 | 1970-12-08 | Mechanical Tech Inc | Regenerative compressor |
US5395210A (en) * | 1989-02-13 | 1995-03-07 | Hitachi, Ltd. | Vortex flow blower having blades each formed by curved surface and method of manufacturing the same |
US5143511A (en) * | 1990-09-28 | 1992-09-01 | Lamson Corporation | Regenerative centrifugal compressor |
RU2032836C1 (en) * | 1992-12-29 | 1995-04-10 | Владимир Николаевич Хмара | Vortex compressor |
US6422808B1 (en) * | 1994-06-03 | 2002-07-23 | Borgwarner Inc. | Regenerative pump having vanes and side channels particularly shaped to direct fluid flow |
JPH0886298A (en) * | 1994-09-19 | 1996-04-02 | Hitachi Ltd | Dry turbo vacuum pump |
US5819524A (en) * | 1996-10-16 | 1998-10-13 | Capstone Turbine Corporation | Gaseous fuel compression and control system and method |
US6113363A (en) * | 1999-02-17 | 2000-09-05 | Walbro Corporation | Turbine fuel pump |
US6709243B1 (en) * | 2000-10-25 | 2004-03-23 | Capstone Turbine Corporation | Rotary machine with reduced axial thrust loads |
US6641361B2 (en) * | 2001-12-12 | 2003-11-04 | Visteon Global Technologies, Inc. | Fuel pump impeller for high flow applications |
US6984099B2 (en) * | 2003-05-06 | 2006-01-10 | Visteon Global Technologies, Inc. | Fuel pump impeller |
US7033137B2 (en) * | 2004-03-19 | 2006-04-25 | Ametek, Inc. | Vortex blower having helmholtz resonators and a baffle assembly |
JP4671844B2 (en) * | 2005-05-27 | 2011-04-20 | 株式会社日立産機システム | Blower |
JP4996985B2 (en) * | 2007-06-04 | 2012-08-08 | 株式会社日立産機システム | Vortex blower |
DE102014106440A1 (en) * | 2014-05-08 | 2015-11-12 | Gebr. Becker Gmbh | Impeller, in particular for a side channel machine |
US10502178B2 (en) * | 2017-03-10 | 2019-12-10 | Regents Of The University Of Minnesota | In-bank veritcal axis hydropower system |
-
2016
- 2016-01-29 ES ES16153453T patent/ES2881049T3/en active Active
- 2016-01-29 DK DK16153453.2T patent/DK3199816T3/en active
- 2016-01-29 EP EP16153453.2A patent/EP3199816B1/en active Active
- 2016-01-29 PL PL16153453T patent/PL3199816T3/en unknown
-
2017
- 2017-01-25 US US15/415,282 patent/US20170218971A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19955955A1 (en) * | 1999-11-19 | 2001-06-13 | Siemens Ag | Side channel machine e.g. high power fan |
DE10249244A1 (en) * | 2002-10-23 | 2004-05-06 | Dürr Dental GmbH & Co. KG | Impeller for a side channel compressor, for use by dentists, has a structured vane geometry with thickened radial inner ends to increase the generated underpressure |
EP1672222A2 (en) * | 2004-12-17 | 2006-06-21 | Gardner Denver Elmo Technology GmbH | Lateral channel compressor |
JP2011140884A (en) * | 2010-01-05 | 2011-07-21 | Teral Inc | Vortex blower |
US20130266434A1 (en) * | 2012-04-05 | 2013-10-10 | Gast Manufacturing, Inc | Impeller and Regenerative Blower |
Also Published As
Publication number | Publication date |
---|---|
ES2881049T3 (en) | 2021-11-26 |
US20170218971A1 (en) | 2017-08-03 |
EP3199816B1 (en) | 2021-05-26 |
DK3199816T3 (en) | 2021-07-26 |
PL3199816T3 (en) | 2021-11-29 |
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