DE19654771A1 - Device for measuring and atomising fluids for internal combustion engines - Google Patents
Device for measuring and atomising fluids for internal combustion enginesInfo
- Publication number
- DE19654771A1 DE19654771A1 DE1996154771 DE19654771A DE19654771A1 DE 19654771 A1 DE19654771 A1 DE 19654771A1 DE 1996154771 DE1996154771 DE 1996154771 DE 19654771 A DE19654771 A DE 19654771A DE 19654771 A1 DE19654771 A1 DE 19654771A1
- Authority
- DE
- Germany
- Prior art keywords
- atomizer
- piston
- fluid
- atomizing
- atomiser
- 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.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 title description 3
- 239000000446 fuel Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000000737 periodic effect Effects 0.000 claims abstract description 3
- 238000009736 wetting Methods 0.000 claims abstract 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000000919 ceramic Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract 1
- 241001494479 Pecora Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/02—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means with fuel-heating means, e.g. for vaporising
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/027—Injectors structurally combined with fuel-injection pumps characterised by the pump drive electric
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9084—Rheological fluids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft eine Fluid Zerstäubereinrichtung der im Oberbegriff des Anspruchs 1 angege benen Art.The invention relates to a fluid atomizer device specified in the preamble of claim 1 type.
Kraftstoffzerstäuber für Brennkraftmaschinen haben eine große Verbreitung erfahren und wer den in vielfältigen Technologien eingesetzt.Fuel atomizers for internal combustion engines have been widely used and who used in a variety of technologies.
Kraftstoffzerstäuber der eingangs genannten Art arbeiten mit piezoelektrischen, magnetostrikti ven oder elektrostriktiven Aktoren als Antriebselemente, die auf einen Kolben oder eine Membran ein wirken, so daß die erforderliche Kraftstoffmenge abgegeben werden kann.Fuel atomizers of the type mentioned initially work with piezoelectric, magnetostricti ven or electrostrictive actuators as drive elements, which on a piston or a membrane act so that the required amount of fuel can be delivered.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine kleinbauende, kostengünstige, verschleißarme Vorrichtung mit hoher Leistung und guten dynamischen Eigenschaften, insbesondere auch bei hohen Betriebsfrequenzen, mit exakt steuerbarer, zumeßbarer und reproduzierbarer Abgabe von Kraftstoff für Vergaser- oder Einspritzanlagen von Brennkraftma schinen unter Einsatz eines Steuerorgans der im Oberbegriff des Anspruchs 1 genannten Art zu schaf fen.Based on this prior art, the invention is based on the object small, inexpensive, low-wear device with high performance and good dynamic Properties, especially at high operating frequencies, with precisely controllable, measurable and reproducible delivery of fuel for carburetor or injection systems of internal combustion engines Sheep using a tax body of the type mentioned in the preamble of claim 1 fen.
Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1 Vorteilhafte Weiterbildungen der Erfindung sind durch die von diesem Anspruch abhängigen Ansprü che gekennzeichnet.This object is achieved by the characterizing features of claim 1 Advantageous developments of the invention are through the claims dependent on this claim marked.
In folgendem wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels in Verbin dung mit vier Zeichnung beschrieben. Dabei zeigt:In the following the invention is based on a preferred embodiment in conjunction described with four drawings. It shows:
Fig. 1 den schematischen Aufbau des Fluid Zerstäubers bei dem zum Zwecke besserer Kühlung der gesamte Aktuator explosionsgeschützt in das Ansaugrohr (1) integriert ist. Der Zerstäuberkopf (2) weist eine aerodynamische Form auf und steht über die Zerstäuberkontaktfläche (3) in direktem me chanischem Kontakt mit dem Zerstäuberkolben (6). Wird nun über das Ventil (27), den Kraft stoffkanal (16) und den Ringkanal (17) unter Druck Kraftstoff zugeführt, so gibt die Tellerfeder (11) nach und die durch das Antriebselement (7) in Richtung der Längsachse hervorgerufenen Schwingungen führen zu einer periodischen Variation der Oberflächenspannung und nach den Gesetzen der Strömungsmechanik zum Zerfall des Fluids an der langen ringförmigen Abrißkante (18), was zu sehr kleinen Tröpfchen führt, die durch die den negativen Druck bildende Geometrie der Zerstäuber kopfkurve (4) und Zerstäuberkolbenkurve (20) noch verstärkt wird und so ein frühes Niederschlagen auf die Saugrohrwandung verhindert. Da aufgrund der wirksamen Adhäsionskräfte des Fluids die an sonsten auch als Ventil wirkende Zerstäuberkontaktfläche (3) nicht die Ventilzustände "offen" oder "geschlossen" erreicht, sind die Fluidzumessungen linear steuerbar. Fig. 1 shows the schematic structure of the fluid atomizer in which the entire actuator is integrated explosion-proof in the intake pipe ( 1 ) for better cooling. The atomizer head ( 2 ) has an aerodynamic shape and is in direct mechanical contact with the atomizer piston ( 6 ) via the atomizer contact surface ( 3 ). If fuel is now supplied via the valve ( 27 ), the fuel channel ( 16 ) and the annular channel ( 17 ) under pressure, the plate spring ( 11 ) yields and the vibrations caused by the drive element ( 7 ) in the direction of the longitudinal axis lead to a periodic variation of the surface tension and, according to the laws of fluid mechanics, the decay of the fluid at the long annular tear-off edge ( 18 ), which leads to very small droplets, which are caused by the negative pressure-forming geometry of the atomizer head curve ( 4 ) and atomizer piston curve ( 20 ) is intensified and prevents early precipitation on the intake manifold wall. Since, due to the effective adhesive forces of the fluid, the atomizer contact surface ( 3 ), which otherwise also acts as a valve, does not reach the valve states "open" or "closed", the fluid metering can be controlled linearly.
Fig. 2 eine Ausführungsform, bei der die Kontaktfläche (36) durch die Zerstäuberkopfringnut (30) begrenzt wird. Durch diese Maßnahme werden aufgrund veränderter Adhäsionskräfte eine unterschied liche Tröpfchenbildung an der Abrißkante und eine geringere, insbesondere initiale Pumpleistung er forderlich. Der Heizung (31) dient, insbesondere während der Kaltstartphase, zur Vorverdampfung eines bestimmten Kraftstoffanteiles. Fig. 2 shows an embodiment in which the contact surface ( 36 ) is limited by the atomizer head ring groove ( 30 ). By this measure, a different droplet formation at the tear-off edge and a lower, in particular initial pumping power, he is required due to changed adhesive forces. The heater ( 31 ) is used, especially during the cold start phase, for pre-evaporation of a certain fuel component.
Fig. 3 eine Ausführungsform, bei der die Abrißkante (38) im Mittelpunkt des Kopfes des Zerstäuber zylinders (44) plaziert ist. Dies führt durch die durch den Druckluftkanal (60) zugeführte Druckluft zu einer Bündelung des Fluidstrahles bei hoher Leistung. Fig. 3 shows an embodiment in which the tear-off edge ( 38 ) in the center of the head of the atomizer cylinder ( 44 ) is placed. As a result of the compressed air supplied through the compressed air duct ( 60 ), this leads to a bundling of the fluid jet at high power.
Fig. 4 eine Ausführungsform, bei der die Kontaktfläche (62, 63) durch die Ringnut (61) begrenzt wird. Dies hat Folgen wie bereits unter Fig. 2 beschrieben. Fig. 4 shows an embodiment in which the contact surface ( 62 , 63 ) is limited by the annular groove ( 61 ). This has consequences as already described in FIG. 2.
Ansaugrohr (Intake pipe (
11
)
Zerstäuberkopf ()
Atomizer head (
22nd
)
Zerstäuberkontaktfläche ()
Atomizer contact surface (
33rd
)
Zerstäuberkopfkurve ()
Atomizer head curve (
44th
)
Leckölkanal ()
Leakage oil duct (
55
)
Zerstäuberkolben ()
Atomizing flask (
66
)
Antriebselement ()
Drive element (
77
)
Kugelscheibenring ()
Spherical disc ring (
88th
)
Dichtring ()
Sealing ring (
99
)
Leckölkanal ()
Leakage oil duct (
1010th
)
Tellerfeder ()
Disc spring (
1111
)
Mutter ()
Mother (
1212th
)
Kontermutter ()
Lock nut (
1313
)
Kabelkanal ()
Cabel Canal (
1414
)
Ansaugrichtung ()
Suction direction (
1515
)
Kraftstoffkanal ()
Fuel channel (
1616
)
Ringkanal ()
Ring channel (
1717th
)
Abrißkante ()
Tear-off edge (
1818th
)
Dichtring ()
Sealing ring (
1919th
)
Zerstäuberkolbenkurve ()
Atomizer piston curve (
2020th
)
Zerstäuberkolbenwandung ()
Atomizer piston wall (
2121
)
Zerstäuberkolbenstange ()
Atomizer piston rod (
2222
)
Widerlagerkolben ()
Abutment piston (
2323
)
Dichtring ()
Sealing ring (
2424th
)
Gewinde ()
Thread (
2525th
)
Kraftstoffzulauf ()
Fuel supply (
2626
)
Ventil ()
Valve (
2727
)
Anschluß ()
Connection (
2828
)
Haltearm ()
Holding arm (
2929
)
Zerstäuberkopfringnut ()
Atomizer head ring groove (
3030th
)
Heizring ()
Heating ring (
3131
)
Haltearm ()
Holding arm (
3232
)
Anschluß ()
Connection (
3333
)
Kabelkanal ()
Cabel Canal (
3434
)
Anschlußarm ()
Connecting arm (
3535
)
Kontaktfläche ()
Contact area (
3636
)
Zerstäuberkolbenkurve ()
Atomizer piston curve (
3737
)
Abrißkante ()
Tear-off edge (
3838
)
Ringkanal ()
Ring channel (
3939
)
Leckölkanal ()
Leakage oil duct (
4040
)
Antriebselement ()
Drive element (
4141
)
Widerlagerkolben ()
Abutment piston (
4242
)
Dichtring ()
Sealing ring (
4343
)
Zerstäuberzylinder ()
Atomizer cylinder (
4444
)
Gewindering ()
Threaded ring (
4545
)
Gewindekonterring ()
Thread lock ring (
4646
)
Leckölkanal ()
Leakage oil duct (
4747
)
Kabelkanal ()
Cabel Canal (
4848
)
Zerstäuberkopfkurve ()
Atomizer head curve (
4949
)
Zerstäuberkontaktfläche ()
Atomizer contact surface (
5050
)
Dichtring ()
Sealing ring (
5151
)
Zerstäuberkolben ()
Atomizing flask (
5252
)
Kugelscheibenring ()
Spherical disc ring (
5353
)
Dichtring ()
Sealing ring (
5454
)
Tellerfeder ()
Disc spring (
5555
)
Gewinde ()
Thread (
5656
)
Zerstäuberkolbenstange ()
Atomizer piston rod (
5757
)
Gewinde ()
Thread (
5858
)
Kraftstoffkanal ()
Fuel channel (
5959
)
Druckluftkanal ()
Compressed air duct (
6060
)
Ringnut ()
Ring groove (
6161
)
Kontaktfläche ()
Contact area (
6262
)
Kontaktfläche ()
Contact area (
6363
).
).
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996154771 DE19654771A1 (en) | 1996-12-31 | 1996-12-31 | Device for measuring and atomising fluids for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996154771 DE19654771A1 (en) | 1996-12-31 | 1996-12-31 | Device for measuring and atomising fluids for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19654771A1 true DE19654771A1 (en) | 1998-07-02 |
Family
ID=7816432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996154771 Withdrawn DE19654771A1 (en) | 1996-12-31 | 1996-12-31 | Device for measuring and atomising fluids for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19654771A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000055494A1 (en) * | 1999-03-15 | 2000-09-21 | Giuliano Cozzari | Fuel injector device for internal combustion engines and injection method thereof |
WO2002025103A1 (en) * | 2000-09-14 | 2002-03-28 | Giuliano Cozzari | Fluids mixing device and method for mixing fluids thereof |
-
1996
- 1996-12-31 DE DE1996154771 patent/DE19654771A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000055494A1 (en) * | 1999-03-15 | 2000-09-21 | Giuliano Cozzari | Fuel injector device for internal combustion engines and injection method thereof |
WO2002025103A1 (en) * | 2000-09-14 | 2002-03-28 | Giuliano Cozzari | Fluids mixing device and method for mixing fluids thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |