EP0907027A1 - Elektrische Luftpumpe - Google Patents
Elektrische Luftpumpe Download PDFInfo
- Publication number
- EP0907027A1 EP0907027A1 EP98109259A EP98109259A EP0907027A1 EP 0907027 A1 EP0907027 A1 EP 0907027A1 EP 98109259 A EP98109259 A EP 98109259A EP 98109259 A EP98109259 A EP 98109259A EP 0907027 A1 EP0907027 A1 EP 0907027A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air pump
- housing
- pump according
- chamber
- rotor
- 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
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010926 purge Methods 0.000 description 3
- 101100204059 Caenorhabditis elegans trap-2 gene Proteins 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/089—Layout of the fuel vapour installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
-
- 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the invention relates to an electric air pump for a device for flushing a Activated carbon trap and, if necessary, for a temporary leak test on one connected to it Fuel tank system of a vehicle internal combustion engine.
- Such a device is the subject of the unpublished patent application 197 09 903.3, in which the purge air upstream of the throttle device Internal combustion engine introduced into the air intake system and by an electrical Air pump is conveyed, the direction of delivery is reversed in the leak test becomes.
- This air pump is a version based on control signals from a Circuit arrangement or a control program of an electronic control unit on and off, and if necessary must be switched according to the direction of rotation.
- FIG. 1 shows a section of a device 1 for flushing an activated carbon trap 2 and for the temporary leak test of a fuel tank system 3 connected to it a vehicle internal combustion engine 4, in which the purge air from the atmosphere via the Activated carbon trap 2 in an air intake system 5 with a throttle device 6 Internal combustion engine 4 is initiated and the leak test by setting a Test pressure in the hermetically sealed tank system 3 and subsequent Pressure drop measurement, which is detected by a pressure sensor 7, over a period of time done, which provides information about the tightness.
- the determination of tight or leaky tank system 3 can then be used as a diagnostic value in a control unit 12 can be stored, acoustically or visually displayed. The latter is then done on a display.
- FIG. 2 shows an electric air pump 8 according to the invention in a sectional view.
- This electric air pump 8 consists of an electronically commutated electric motor 13, which is arranged together with the air pump in a housing 14, the one has first chamber 15, in which a stand package 16 is arranged, the electrical Connections 17 are guided through a plug cover 18 to the outside, the Plug cover 18 hermetically seals the chamber 15.
- a second chamber 19 is provided, in which a bell-shaped on a pin 20 trained rotor 21 is arranged which has a cylindrical wall 22 of the area the first chamber 15, in which the stand package 16 is arranged, with the least Exceeds distance and one on the side facing away from the first chamber 15 Has collar 23, the several wing-shaped conveying members typical of peripheral pumps 24 which cooperate with an annular channel 25 which has a separating section 26 (Fig. 3) between two fluid connection piece 27, so that the fluid is sucked through the one nozzle 27 and pressed out of the other, depending reversed according to the direction of rotation.
- the ring channel 25 is composed of an upper half of the housing 14 and a lower half a pump cover 28 is formed, the pin 20 on the one hand in a bore 29 of the housing 14 and on the other hand, a bore 30 of the pump cover 28 is held becomes.
- the rotor 21 is fastened on the journal 20 by means of two bearings 31, 32. To increase the bearing distance, the rotor 21 has a hub extension 33, which protrudes into a corresponding bulge 34 of the pump cover 28.
- the stand assembly 16 is held against rotation by ribs 35 which are arranged on the cylindrical wall 22 of the chamber 15 and engage in corresponding grooves 36 of the stand assembly 16. These ribs 35 serve on the other hand, to reinforce the relatively thin cylindrical wall 22.
- this wall 22 borders the first chamber 15 opposite the second chamber 19.
- This magnetic ring 38 is in one piece with the rotor 21 made of plastic sprayed connected or attached to the rotor 21 and attached to its inner circumference is a multi-pole lateral magnetization and is used during motor operation carried along by the traveling magnetic field generated in the stator assembly 16 and in Rotation offset.
- the housing 14 has a pinch edge 39, which between the outer surface 40 of the rotor 21 or the magnetic ring 38 and a cylindrical End wall 41 of the second chamber 19 covers existing gap 42, so that splashing losses are minimized.
- the cylindrical wall 22 between the stator assembly 16 and the rotor 21 is very thin, so that there is a very narrow iron-free gap and thus low magnetic circuit losses, with which the number of windings and / or the current strength can be minimized.
- An elastic seal 43 is inserted between the housing 14 and the pump cover 28 and elastic by the connecting force between housing 14 and pump cover 28 deformed. Any connection type, e.g. B. a bayonet lock or welding can be provided.
- Housing 14 and cover 18 and Pump cover 28 and rotor 21 can be made of plastic, advantageously polyphenylene sulfide, consist. To save the expensive high-quality polyphenylene sulfide the plug cover 18 can consist of a cheaper plastic.
- Fig. 3 shows a side view of Fig. 2 with a detail from which the arrangement of the Ring channel 25, the separating section 26 and the wing-shaped conveying members 24 of the Rotor 21 and the two connecting pieces 27 can be seen.
- Fig. 4 shows a complete stand package 16 with the individual sheets 46 and windings 47.
- a plastic middle part 48 is pressed, into which several contact elements 49 are inserted, which have hooks 50 which are welded to winding ends 51. This results in cost-effective production.
- a printed circuit board 52 is also placed on the middle part 48 and an electrical connection is made to the contact elements 49 by soldering.
- the complete stand package 16 is held in the installed state by a plug cover attachment 53, which is supported on the printed circuit board 52 and loads it against contact surfaces 54 of the housing 14 (FIG. 2).
- the air pump 8 can decouple structure-borne noise Have coupling ring 55 which is attached to the housing 14 and with a holder 56 is connected for mounting at an attachment point in the vehicle.
- the coupling ring 55 by a shoulder 57 of the Plug cover 18 is loaded, so that the plug cover 18 and the housing 14 of the reaction force of the coupling ring 55 are exposed and thereby the plug cover 18th by means of snap-on clip attachments 58 on the housing 14 or housing recesses 59 supports and at the same time the chambers 15, 19 to the atmosphere by contacting the coupling ring 55 sealed to a housing wall 60 and the plug cover shoulder 57 are.
- the housing 14 can be made of a high quality plastic and the plug cover 18 consist of an inferior plastic, the latter is subjected to deformation during assembly, but remains dimensionally stable Adapts housing 14.
- the pin 20 can be molded around with the pump cover 28 and into the bore 29 of the housing 14 can be pressed in, with longitudinal ribs 61 being deformed in the bore 29 and the pin 20 are adapted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
Description
einen Ausschnitt einer Vorrichtung zum Spülen einer Aktivkohlefalle,
eine erfindungsgemäße elektrische Luftpumpe,
eine Seitenansicht mit Ausschnitt der Fig. 2,
ein komplettes Ständerpaket.
Eine Leiterplatte 52 wird ebenfalls auf das Mittelteil 48 aufgesetzt und durch Verlöten ein elektrischer Anschluß an die Kontaktelemente 49 hergestellt. Das komplette Ständerpaket 16 ist im eingebauten Zustand durch einen Steckerdeckelansatz 53, der sich an der Leiterplatte 52 abstützt und diese gegen Auflageflächen 54 des Gehäuses 14 belastet, gehalten (Fig. 2).
Claims (16)
- Elektrische Luftpumpe für eine Vorrichtung zum Spülen einer Aktivkohlefalle und ggf. zur zeitweiligen Dichtheitsprüfung einer mit dieser verbundenen Brennstofftankanlage einer Fahrzeug-Brennkraftmaschine, bestehend aus einem elektronisch kommutierten Elektromotor, der mit der Luftpumpe gemeinsam in einem Gehäuse angeordnet ist dadurch gekennzeichnet, daß das Gehäuse (14) eine erste Kammer (15) aufweist, in der ein Ständerpaket (16) angeordnet ist, dessen elektrische Anschlüsse (17) durch einen Steckerdeckel (18) nach außen geführt sind, wobei der Steckerdeckel (18) die Kammer (15) hermetisch abschließt, und eine zweite Kammer (19) vorgesehen ist, in der auf einem Zapfen (20) ein glockenförmig ausgebildeter Rotor (21) angeordnet ist, der eine zylindrische Wandung (22) des Bereichs der ersten Kammer (15), in dem das Ständerpaket (16) angeordnet ist, mit geringstem Abstand überragt und auf der der ersten Kammer (15) abgewandten Seite einen Kragen (23) aufweist, der mehrere für Peripheralpumpen typische flügelförmige Förderglieder (24) aufweist, die mit einem Ringkanal (25) zusammenwirken, der einen Trennabschnitt (26) zwischen zwei Fluidanschlußstutzen (27) aufweist.
- Luftpumpe nach Anspruch 1, dadurch gekennzeichnet, daß der Ringkanal (25) aus einer oberen Ringkanalhälfte des Gehäuses (14) und einer unteren eines Pumpendeckels (28) gebildet ist, wobei der Zapfen (20) einerseits in einer Bohrung (29) des Gehäuses (14) und andererseits in einer Bohrung (30) des Pumpendeckels (28) gehalten ist.
- Luftpumpe nach Anspruch 2, dadurch gekennzeichnet, daß der Rotor (21) mittels zweier Lager (31, 32) auf dem Zapfen (20) befestigt ist und zur Vergrößerung des Lagerabstandes einen Nabenansatz (33) aufweist, der in eine entsprechende Auswölbung (34) des Pumpendeckels (28) hineinragt.
- Luftpumpe nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das Ständerpaket (16) gegen Verdrehung durch Rippen (35) gehalten wird, die an der zylindrischen Wandung (22) der Kammer (15) angeordnet sind und in entsprechende Nuten (36) des Ständerpaketes (16) eingreifen, wobei diese Rippen (35) andererseits die relativ dünne zylindrische Wandung (22) verstärken.
- Luftpumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Rotor (21) aus einem Kunststoff besteht und einen eingesetzten oder angespritzten Magnetstoffring (38) aufweist.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Magnetstoffring (38) an seinem Innenumfang eine mehrpolige laterale Magnetisierung aufweist.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (14) eine Quetschkante (38) aufweist, die den zwischen der äußeren Mantelfläche (39) des Rotors (21) bzw. des Magnetstoffringes (38) und einer zylindrischen Abschlußwandung (41) der zweiten Kammer (19) bestehenden Spalt (42) abdeckt, so daß Panschverluste minimiert werden.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die beiden Anschlußstutzen (27) einen konischen Ein- bzw. Auslaufabschnitt (44) aufweisen, wodurch Geräuschbildungen vermieden werden.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß Gehäuse (14), Deckel (10) und Pumpendeckel (28) sowie der Rotor (21) aus Kunststoff, vorteilhafterweise Polyphenylensulfid, bestehen.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zur Begrenzung des Axialspiels des Rotors (21) auf dem Zapfen (20) eines der Lager (31, 32) des Rotors (21) als Kugellager (45) ausgeführt ist.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in das Ständerpaket (16) ein aus Kunststoff bestehendes Mittelteil (48) eingepreßt ist, in welches mehrere Kontaktelemente (49) eingefügt sind, die Haken (50) aufweisen, die mit Wicklungsenden (51) verschweißt sind, und daß eine Leiterplatte (52) auf das Mittelteil (48) aufgesetzt und durch Verlöten ein elektrischer Anschluß an die Kontaktelemente (49) hergestellt ist.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Luftpumpe (8) zur Körperschallentkopplung einen elastischen Koppelring (53) aufweist, der am Gehäuse (14) befestigt und mit einem Halter (54) zur Montage an einer Befestigungsstelle im Fahrzeug verbunden ist.
- Luftpumpe nach Anspruch 12, dadurch gekennzeichnet, daß der Koppelring (55) durch eine Schulter (57) des Steckerdeckels (18) belastet ist, so daß der Steckerdeckel (18) und das Gehäuse (14) der Reaktionskraft des Koppelringes (55) ausgesetzt sind und sich dadurch der Steckerdeckel (18) mittels eingerasteter Klippsansätze (58) am Gehäuse (14) bzw. Gehäuseausnehmungen (59) abstützt und gleichzeitig die Kammern (15, 19) zur Atmosphäre durch Anlage des Koppelrings (55) an einer Gehäusewand (60) und der Steckerdeckelschulter (57) abgedichtet sind.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (14) aus einem hochwertigen Kunststoff und der Steckerdeckel (18) aus einem minderwertigen Kunststoff bestehen.
- Luftpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Zapfen (20) mit dem Pumpendeckel (28) umspritzt gehalten und in die Bohrung (29) des Gehäuses (14) eingepreßt ist.
- Luftpumpe nach Anspruch 15, dadurch gekennzeichnet, daß die Bohrung (29) Längsrippen (61) aufweist, die sich beim Einpressen des Zapfens (20) verformen und dem Zapfen (20) anpassen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19740582 | 1997-09-16 | ||
DE19740582A DE19740582A1 (de) | 1997-09-16 | 1997-09-16 | Elektrische Luftpumpe für eine Vorrichtung zum Spülen einer Aktivkohlefalle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0907027A1 true EP0907027A1 (de) | 1999-04-07 |
EP0907027B1 EP0907027B1 (de) | 2003-01-02 |
Family
ID=7842441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109259A Expired - Lifetime EP0907027B1 (de) | 1997-09-16 | 1998-05-22 | Elektrische Luftpumpe |
Country Status (4)
Country | Link |
---|---|
US (1) | US6036456A (de) |
EP (1) | EP0907027B1 (de) |
DE (2) | DE19740582A1 (de) |
ES (1) | ES2186047T3 (de) |
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US6652249B2 (en) * | 1999-12-13 | 2003-11-25 | Parker-Hannifin Corporation | Brushless DC wet motor fuel pump with integral controller |
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JP2005069157A (ja) * | 2003-08-27 | 2005-03-17 | Hitachi Unisia Automotive Ltd | 内燃機関用エアポンプ |
GB2417981A (en) * | 2004-09-14 | 2006-03-15 | Dana Automotive Ltd | Sealing arrangement for a canned motor pump |
JP2007032370A (ja) * | 2005-07-25 | 2007-02-08 | Aisin Seiki Co Ltd | 電動ポンプ |
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US9822737B2 (en) | 2014-04-08 | 2017-11-21 | Ford Global Technologies, Llc | System and methods for a leak check module comprising a reversible vacuum pump |
US9840985B2 (en) * | 2015-10-26 | 2017-12-12 | Ford Global Technologies, Llc | Fuel vapor line diagnostics |
EP3377768B1 (de) | 2015-11-16 | 2021-01-13 | Pierburg Pump Technology GmbH | Fahrzeugdampfpumpe |
US10935028B2 (en) * | 2016-06-20 | 2021-03-02 | Pierburg Pump Technology Gmbh | Electric fluid pump for a motor vehicle |
US20190125625A1 (en) * | 2017-10-29 | 2019-05-02 | Tsung-Chen Huang | Cover structure of a washer pump |
DE102018222102A1 (de) * | 2018-12-18 | 2020-06-18 | Robert Bosch Gmbh | Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung eines gasförmigen Mediums |
DE102019120410A1 (de) | 2019-07-29 | 2021-02-04 | Schwäbische Hüttenwerke Automotive GmbH | Fördervorrichtung mit einem Seitenkanal- oder Peripheralgebläse |
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DE19709903A1 (de) | 1997-03-11 | 1998-09-17 | Pierburg Ag | Vorrichtung zum Spülen einer Aktivkohlefalle und zur zeitweiligen Dichtheitsprüfung einer mit dieser verbundenen Brennstofftankanlage einer Fahrzeug-Brennkraftmaschine |
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DE3636404A1 (de) * | 1986-10-25 | 1988-04-28 | Richter Chemie Technik Gmbh | Magnetkreiselpumpe |
JPH0747966Y2 (ja) * | 1989-11-22 | 1995-11-01 | 愛三工業株式会社 | 電動ポンプ |
US5356272A (en) * | 1990-09-05 | 1994-10-18 | Nippondenso Co., Ltd. | Fuel supply device and method of assembling same |
JPH0965619A (ja) * | 1995-06-15 | 1997-03-07 | Denso Corp | 燃料ポンプ |
-
1997
- 1997-09-16 DE DE19740582A patent/DE19740582A1/de not_active Withdrawn
-
1998
- 1998-05-22 EP EP98109259A patent/EP0907027B1/de not_active Expired - Lifetime
- 1998-05-22 DE DE59806801T patent/DE59806801D1/de not_active Expired - Fee Related
- 1998-05-22 ES ES98109259T patent/ES2186047T3/es not_active Expired - Lifetime
- 1998-09-16 US US09/154,393 patent/US6036456A/en not_active Expired - Fee Related
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US3933416A (en) * | 1945-05-01 | 1976-01-20 | Donelian Khatchik O | Hermatically sealed motor blower unit with stator inside hollow armature |
DE2042356A1 (de) * | 1969-08-27 | 1971-03-04 | Rotron Inc | Seitenkanalverdichter |
US5291087A (en) * | 1993-03-03 | 1994-03-01 | Westinghouse Electric Corp. | Sealed electric motor assembly |
DE4440495A1 (de) * | 1994-11-12 | 1996-05-15 | Bosch Gmbh Robert | Elektrisch betriebene Luftgebläseeinheit, insbesondere Sekundärluftgebläseeinheit |
DE19709903A1 (de) | 1997-03-11 | 1998-09-17 | Pierburg Ag | Vorrichtung zum Spülen einer Aktivkohlefalle und zur zeitweiligen Dichtheitsprüfung einer mit dieser verbundenen Brennstofftankanlage einer Fahrzeug-Brennkraftmaschine |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110500300A (zh) * | 2019-08-02 | 2019-11-26 | 烟台菱辰能源有限公司 | 一种旋涡式氢循环泵 |
WO2021191862A1 (en) * | 2020-03-26 | 2021-09-30 | Padmini Vna Mechatronics Pvt. Ltd. | Electric water pump with improved shaft |
Also Published As
Publication number | Publication date |
---|---|
US6036456A (en) | 2000-03-14 |
DE59806801D1 (de) | 2003-02-06 |
ES2186047T3 (es) | 2003-05-01 |
DE19740582A1 (de) | 1999-03-18 |
EP0907027B1 (de) | 2003-01-02 |
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