WO1996007822A1 - Einrichtung zum fördern von kraftstoff aus einem vorratstank zu einer brennkraftmaschine - Google Patents
Einrichtung zum fördern von kraftstoff aus einem vorratstank zu einer brennkraftmaschine Download PDFInfo
- Publication number
- WO1996007822A1 WO1996007822A1 PCT/DE1995/001004 DE9501004W WO9607822A1 WO 1996007822 A1 WO1996007822 A1 WO 1996007822A1 DE 9501004 W DE9501004 W DE 9501004W WO 9607822 A1 WO9607822 A1 WO 9607822A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- degassing
- fuel
- jet pump
- delivery unit
- pump
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 238000007872 degassing Methods 0.000 claims abstract description 27
- 239000003380 propellant Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract 3
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
Definitions
- the invention is based on a device for conveying fuel from a storage tank to an internal combustion engine according to the preamble of claim 1.
- a delivery unit inserted into a storage tank delivers fuel from the storage tank to an internal combustion engine.
- this is inserted into another container attached to the bottom of the storage tank, the volume of which is much smaller than that of the storage tank by means of a jet pump is filled from the storage tank.
- the jet pump is arranged at the lower, bottom end of the container and can thus fill the container with an almost completely empty storage tank or a possible side inclination, which can then be sucked in there via a suction nozzle of the delivery unit, which is also near the bottom.
- the known delivery device has the disadvantage that the fuel return flow flowing back from the internal combustion engine is used to drive the jet pump between the storage tank and container, which in addition to a structurally relatively complex supply of the return amount to the jet pump also has the consequence that the delivery rate of the delivery unit accordingly large must be interpreted that the return flow is sufficient in every operating state of the internal combustion engine to ensure safe operation of the jet pump.
- the device according to the invention for conveying fuel from a storage tank to an internal combustion engine with the characterizing features of claim 1 has the advantage that, by using the degassing flow exiting the delivery unit to drive the jet pump, the return flow from the internal combustion engine to the jet pump is not supplied can.
- the delivery rate of the delivery unit now only needs to be matched to the requirements of the internal combustion engine, so that the amount of delivery required on the delivery unit can be reduced overall, which in addition to lower power consumption of the delivery unit also results in a reduction in noise emissions and an increase in the service life of the delivery unit Has.
- the jet pump is designed in such a way that even at the lowest delivery rate of the delivery unit, the exiting degassing flow is sufficient to drive it.
- the use of the degassing in the pump chamber which is in any case necessary for delivery units and in particular flow pumps, for high efficiency to drive the jet pump thus enables a particularly compact construction of the entire delivery device.
- the arrangement of the degassing line in a short pipe socket protruding from the housing of the conveying unit, the outlet of which is as directly as possible opposite the suction opening of the jet pump, is particularly advantageous since long pipelines can be dispensed with in this way.
- the The degassing line also advantageously has a nozzle.
- the invention relates to the description of
- Fuel delivery devices are shown in the drawing and are explained in more detail below.
- FIG. 1 shows a first exemplary embodiment in a simplified partial section through the storage tank, in which the jet pump is connected to the by means of an elastic line
- FIGS. 2 and 3 show two further exemplary embodiments analogous to the illustration in FIG. 1, in which the outlet opening of the pipe socket receiving the degassing line opens directly onto the jet pump.
- FIG. 1 The one shown in simplified form in FIG.
- Fuel delivery device has a fuel supply anchor 1, on the bottom 3 of which a preferably cylindrical container 5 is fastened.
- a delivery unit 7 is arranged, which is formed by a flow pump 9 driven by an electric motor (not shown in detail), the suction pipe 11 of which projects into the region of the container 5 near the bottom, the fuel pipe 13 being connected upstream of the suction pipe 11.
- the flow pump 9 has in its housing 15 a cylindrical pump chamber 17, in which a rotating driven impeller 19 is arranged, which on its axial end faces over the Wing 21 distributed over the entire circumference, 21 chambers being formed in each case between two adjacent wings, which, with a partial annular groove in the end faces of the pump chamber 17, form a delivery channel 23.
- This delivery channel 23 extends from an intake port 25 connected to the intake port 11 into the pump chamber 17 in the form of a partial ring to an outlet opening 27 from the pump chamber 17 which, with the interposition of the electric motor (not shown in more detail), in a known manner with a delivery line 29 to an internal combustion engine 31 is connected.
- a degassing opening 33 leads out in the form of a bore from the pump chamber 17, which opens into a pipe socket 35 arranged on the end face of the conveying unit 7 facing the floor 3, the pipe socket 35 thereby forming a degassing line 37 .
- a jet pump 39 is inserted in its lower, bottom, peripheral housing wall, the suction-side end of which projects into the storage tank 1 and the pressure-side end into the container 5.
- the degassing flow of the flow pump 9 is used as the propellant quantity of the jet pump 39, for which purpose the outlet opening of the pipe socket 35 is connected by means of an elastic connecting line 41 to a nozzle within the jet pump 39, which nozzle is not shown in FIG. 1.
- the structure of the jet pump 39 can be found in the exemplary embodiments shown in FIGS. 2 and 3, the design of which differs only in terms of the arrangement and design of the jet pump 39 from the first exemplary embodiment shown in FIG. 1, which is why their description is limited to the jet pump 39.
- the outlet opening of the pipe socket 35 projecting axially from the delivery unit 7 opens directly into a suction space 43 which is formed by molding the lower end face of the container 5 facing the bottom 3 and which is open towards the storage tank 1.
- a suction opening 47 of the jet pump 39 is arranged opposite the outlet opening of the pipe socket 35, which is also nozzle-shaped and thus connects the suction space 43 to the interior of the container 5.
- the pipe socket 35 projects through a conical passage opening 49 into the suction chamber 43, a sealing ring 51 being clamped between the pipe socket 35 and the wall of the suction chamber 43 formed by the container wall.
- the wall of the container 5 has a shoulder at its lower end in the area of the pipe socket 35, so that a radially inwardly offset wall surface 53 is formed, in which the nozzle-shaped suction opening 47 of the jet pump 39 now is arranged.
- this is extended by an angle piece 55 in the third exemplary embodiment, the outlet opening of the pipe socket 35 again being designed as a nozzle 45.
- the fuel delivery device according to the invention works in the following manner.
- filtered fuel is drawn in from the container 5 into the pump chamber 17 via the intake port 11, which is there in a known manner is conveyed through the impeller 19 along the conveying channel 23 to the outlet opening 27 and via the conveying line 29 to the internal combustion engine 31.
- a degassing flow of about 20 l / h at 100 kPa emerges from the degassing opening 33, which is supplied via the degassing line 37 formed in the pipe socket 35 and in FIG. 1 via the elastic connecting line 41 to the jet pump 39, the flow rate of the degassing flow increased again due to the nozzle 45.
- the degassing flow entrains the fuel therein when it flows through the suction space 43 and enters the container with it in a known manner via the suction opening 47, so that a safe filling of the container 5 is ensured during the operation of the conveying unit 7.
- the suction opening 47 between the container 5 and the tank 1 is offset upwards by a certain amount with respect to the bottom 3. It is thus with the invention
- Kraf material delivery device possible in a simple manner to operate the jet pump 39 necessary for filling the container 5 with the degassing flow of the flow pump 9, this use of the degassing flow of the delivery pump as the propellant quantity for a jet pump can alternatively also be used for delivery devices working with other conveying media.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960701684A KR960705138A (ko) | 1994-09-06 | 1995-08-02 | 연료를 연료탱크로부터 내연기관으로 이송하기 위한 장치(Device for delivering fuel from a fuel tank to internal combustion engine) |
JP8509084A JPH09505128A (ja) | 1994-09-06 | 1995-08-02 | 燃料を貯蔵タンクから内燃機関へ送出するための装置 |
EP95926836A EP0734493A1 (de) | 1994-09-06 | 1995-08-02 | Einrichtung zum fördern von kraftstoff aus einem vorratstank zu einer brennkraftmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4431738A DE4431738A1 (de) | 1994-09-06 | 1994-09-06 | Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine |
DEP4431738.7 | 1994-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996007822A1 true WO1996007822A1 (de) | 1996-03-14 |
Family
ID=6527561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/001004 WO1996007822A1 (de) | 1994-09-06 | 1995-08-02 | Einrichtung zum fördern von kraftstoff aus einem vorratstank zu einer brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0734493A1 (de) |
JP (1) | JPH09505128A (de) |
KR (1) | KR960705138A (de) |
DE (1) | DE4431738A1 (de) |
WO (1) | WO1996007822A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005069171A (ja) * | 2003-08-27 | 2005-03-17 | Aisan Ind Co Ltd | 燃料供給装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1944714A1 (de) * | 1968-09-04 | 1970-03-12 | Chandler Evans Inc | Pumpe fuer sowohl Fluessigkeiten als auch Gase enthaltende Stroemungsmittel |
DE2804550A1 (de) * | 1978-02-03 | 1979-08-09 | Bosch Gmbh Robert | Kraftstoffanlage fuer brennkraftmaschinen |
FR2594486A1 (fr) * | 1986-02-19 | 1987-08-21 | Jaeger | Degazeur perfectionne a debordement pour circuit d'alimentation en carburant de vehicule automobile |
DE3719809C1 (de) * | 1987-06-13 | 1988-06-09 | Daimler Benz Ag | Stautopf fuer Kraftstoffbehaelter |
-
1994
- 1994-09-06 DE DE4431738A patent/DE4431738A1/de not_active Withdrawn
-
1995
- 1995-08-02 WO PCT/DE1995/001004 patent/WO1996007822A1/de not_active Application Discontinuation
- 1995-08-02 KR KR1019960701684A patent/KR960705138A/ko not_active Withdrawn
- 1995-08-02 EP EP95926836A patent/EP0734493A1/de not_active Withdrawn
- 1995-08-02 JP JP8509084A patent/JPH09505128A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1944714A1 (de) * | 1968-09-04 | 1970-03-12 | Chandler Evans Inc | Pumpe fuer sowohl Fluessigkeiten als auch Gase enthaltende Stroemungsmittel |
DE2804550A1 (de) * | 1978-02-03 | 1979-08-09 | Bosch Gmbh Robert | Kraftstoffanlage fuer brennkraftmaschinen |
FR2594486A1 (fr) * | 1986-02-19 | 1987-08-21 | Jaeger | Degazeur perfectionne a debordement pour circuit d'alimentation en carburant de vehicule automobile |
DE3719809C1 (de) * | 1987-06-13 | 1988-06-09 | Daimler Benz Ag | Stautopf fuer Kraftstoffbehaelter |
Also Published As
Publication number | Publication date |
---|---|
DE4431738A1 (de) | 1996-03-07 |
EP0734493A1 (de) | 1996-10-02 |
KR960705138A (ko) | 1996-10-09 |
JPH09505128A (ja) | 1997-05-20 |
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