EP0619425A1 - Suction system arrangement in a motor vehicle tank - Google Patents
Suction system arrangement in a motor vehicle tank Download PDFInfo
- Publication number
- EP0619425A1 EP0619425A1 EP94200868A EP94200868A EP0619425A1 EP 0619425 A1 EP0619425 A1 EP 0619425A1 EP 94200868 A EP94200868 A EP 94200868A EP 94200868 A EP94200868 A EP 94200868A EP 0619425 A1 EP0619425 A1 EP 0619425A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- arrangement
- filter
- tank
- variable
- 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- Withdrawn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
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
- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/103—Mounting pumps on fuel tanks
-
- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
-
- 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
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/44—Filters structurally associated with pumps
-
- 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
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/50—Filters arranged in or on fuel tanks
Definitions
- This invention relates to a suction system arrangement in a motor vehicle tank which enables tank base deformation to be absorbed.
- the fuel pump is positioned within a calming chamber and is connected to it via elastic antivibration elements.
- the calming chamber rests on the tank base and consequently moves as a result of variations in the tank height due to deformation caused by pressure in its interior and the weight of the fuel.
- the fuel pump moves with the calming chamber and its distance from the base remains constant, allowing all the fuel contained in the tank to be drawn in, independently of its deformation.
- the object of the present invention is to provide a new arrangement of the suction system, and in particular of the pump, which by overcoming the aforesaid drawbacks enables complete intake to be achieved in all cases independently of the deformation of the tank base.
- a suction system arrangement in a motor vehicle tank comprising a pump connected to a filter located in proximity to the tank base within a calming chamber, characterised in that said filter and said pump are connected together by a variable-length conduit.
- said pump is connected to said tank by elastic conduit elements.
- FIG. 1 schematically shows a suction system arrangement according to the invention within a tank, partially shown by its base 10.
- the arrangement comprises a pump 11 connected to a filter 12 located in proximity to the tank base 10 within a calming chamber 13.
- the pump 11 is connected via a first port 14, inserted into an elastic conduit element 15, to the tank roof 16.
- the second end of the conduit element 15 is mounted on a pipe piece 17 extending from the tank roof 16 and connected to the fuel delivery pipe, partially shown schematically at 18.
- the conduit element 15 is clamped at its two ends to the pipe piece 17 and to the pump port 14 by fixing collars 19.
- variable-length conduit consists of a tubular bellows element 21, a first end 22 of which is fixed to the second pump port 20 by a fixing collar 19.
- the second end 23 of the tubular bellows element 21 is mounted over a pipe piece 24 emerging from the filter 12 and is clamped by a further fixing collar 19.
- those ends 22 and 23 of the tubular bellows element 21 used for the fixing are provided with a radially outward projecting flange 25 in the region in which the bellows portion commences.
- These mutually opposite flanges 25 are used for locating the opposing ends of an elastic element 26, such as a compression spring, which acts to force apart the parts against which it abuts, ie it tends to maintain the bellows in its extended position.
- Figure 2 shows a second embodiment of a suction system arrangement according to the invention in which the same reference numerals are used for identical elements.
- the second port 20 of the pump 11 is connected to the pipe piece 24 emerging from the filter 12 by a different type of variable-length conduit.
- variable-length conduit consists in this embodiment of a pair of telescopic tubular elements 27 and 28, of which the outwardly facing ends are also fixed to the second port 20 of the pump 11 and to the filter pipe piece 24 by fixing collars 19.
- an elastic element 26 such as a compression spring, which acts to force apart the parts against which it abuts, ie to maintain the elements in its extended position.
- the pump 11 is fixed to the roof 16 by the conduit element 15 which can consist of a rubber tube acting as the antivibration element and the passage for the fuel leaving the pump.
- the conduit element 15 can consist of a rubber tube acting as the antivibration element and the passage for the fuel leaving the pump.
- the distance of the pump port from the tank base varies in accordance with the deformation of the tank base.
- the arrangement according to the present invention consisting of mounting on the suction port 20 of the pump 11 an extendable element such as the tubular bellows element 21 or the pair of tubular telescopic elements 27 and 28, solves the problem of correctly positioning the filter 12 on the base independently of tank deformation.
- the possible presence of the spring 26 ensures constant adherence of the filter 12 to the inside of the base of the calming chamber 13, ie on the tank base 10.
- both the tubular bellows element 21 and the pair of tubular telescopic elements 27 and 28 can be formed either rigid or integral with the filter pipe piece 24 .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Details Of Reciprocating Pumps (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
A suction system arrangement in a motor vehicle tank, comprising a pump (11) connected to a filter (12) located in proximity to the tank base (10) within a calming chamber (13), in which the filter (12) and pump (11) are connected together by a variable-length conduit (21). Preferably the pump (11) is connected to the tank by elastic conduit elements (15).
Description
- This invention relates to a suction system arrangement in a motor vehicle tank which enables tank base deformation to be absorbed.
- In known fuel suction systems, the fuel pump is positioned within a calming chamber and is connected to it via elastic antivibration elements. The calming chamber rests on the tank base and consequently moves as a result of variations in the tank height due to deformation caused by pressure in its interior and the weight of the fuel.
- With such suction system arrangements the fuel pump moves with the calming chamber and its distance from the base remains constant, allowing all the fuel contained in the tank to be drawn in, independently of its deformation.
- This arrangement can lead to drawbacks in that the pump is subjected to continuous movement and its connection to the tank roof undergoes stressing. On the other hand with such an arrangement it would be impossible to fix the pump relative to the tank while at the same time achieving complete intake of the fuel contained in the tank.
- The object of the present invention is to provide a new arrangement of the suction system, and in particular of the pump, which by overcoming the aforesaid drawbacks enables complete intake to be achieved in all cases independently of the deformation of the tank base.
- This object is attained according to the present invention by a suction system arrangement in a motor vehicle tank, comprising a pump connected to a filter located in proximity to the tank base within a calming chamber, characterised in that said filter and said pump are connected together by a variable-length conduit.
- Preferably said pump is connected to said tank by elastic conduit elements.
- The characteristics and advantages of the present invention will be more apparent from the detailed description given hereinafter with reference to the accompanying schematic drawings, in which:
- Figure 1 is a schematic elevational section through a first embodiment of the suction system arrangement according to the present invention; and
- Figure 2 is a schematic elevational section through a second embodiment of the suction system arrangement according to the present invention.
- Figure 1 schematically shows a suction system arrangement according to the invention within a tank, partially shown by its
base 10. The arrangement comprises apump 11 connected to afilter 12 located in proximity to thetank base 10 within acalming chamber 13. - The
pump 11 is connected via afirst port 14, inserted into anelastic conduit element 15, to thetank roof 16. - In this respect, the second end of the
conduit element 15 is mounted on apipe piece 17 extending from thetank roof 16 and connected to the fuel delivery pipe, partially shown schematically at 18. - The
conduit element 15 is clamped at its two ends to thepipe piece 17 and to thepump port 14 by fixingcollars 19. - The lower
second port 20 of thepump 11 is connected to thefilter 12 via a variable-length conduit. In the illustrated embodiment the variable-length conduit consists of atubular bellows element 21, afirst end 22 of which is fixed to thesecond pump port 20 by afixing collar 19. - The
second end 23 of thetubular bellows element 21 is mounted over apipe piece 24 emerging from thefilter 12 and is clamped by afurther fixing collar 19. - In the embodiment shown in Figure 1, those
ends tubular bellows element 21 used for the fixing are provided with a radially outward projectingflange 25 in the region in which the bellows portion commences. These mutuallyopposite flanges 25 are used for locating the opposing ends of anelastic element 26, such as a compression spring, which acts to force apart the parts against which it abuts, ie it tends to maintain the bellows in its extended position. - Figure 2 shows a second embodiment of a suction system arrangement according to the invention in which the same reference numerals are used for identical elements.
- It will be noted that the
second port 20 of thepump 11 is connected to thepipe piece 24 emerging from thefilter 12 by a different type of variable-length conduit. - The variable-length conduit consists in this embodiment of a pair of telescopic
tubular elements second port 20 of thepump 11 and to thefilter pipe piece 24 byfixing collars 19. - It will be seen that between the free end of the
second port 20 of thepump 11 and the free end of thepipe piece 24 there can again be interposed anelastic element 26, such as a compression spring, which acts to force apart the parts against which it abuts, ie to maintain the elements in its extended position. - In both the embodiments the
pump 11 is fixed to theroof 16 by theconduit element 15 which can consist of a rubber tube acting as the antivibration element and the passage for the fuel leaving the pump. In this case the distance of the pump port from the tank base varies in accordance with the deformation of the tank base. - The arrangement according to the present invention, consisting of mounting on the
suction port 20 of thepump 11 an extendable element such as thetubular bellows element 21 or the pair of tubulartelescopic elements filter 12 on the base independently of tank deformation. - The possible presence of the
spring 26 ensures constant adherence of thefilter 12 to the inside of the base of thecalming chamber 13, ie on thetank base 10. - In an alternative embodiment, both the
tubular bellows element 21 and the pair of tubulartelescopic elements filter pipe piece 24 .
Claims (9)
- A suction system arrangement in a motor vehicle tank, comprising a pump connected to a filter located in proximity to the tank base within a calming chamber, characterised in that said filter and said pump are connected together by a variable-length conduit.
- An arrangement as claimed in claim 1, characterised in that said pump is connected to said tank by elastic conduit elements.
- An arrangement as claimed in claim 2, characterised in that said elastic conduit elements are connected to the tank roof.
- An arrangement as claimed in claim 1, characterised in that said variable-length conduit consists of a tubular bellows element, the ends of which are removably fixed to said filter and to said pump.
- An arrangement as claimed in claim 1, characterised in that said variable-length conduit consists of a tubular bellows element formed integrally with said filter.
- An arrangement as claimed in claim 1, characterised in that said variable-length conduit consists of tubular telescopic elements, the ends of which are removably fixed to said filter and to said pump.
- An arrangement as claimed in claim 6, characterised in that said tubular telescopic elements consist of at least one pair of tubes, the facing ends of which are slidable one within the other, a seal gasket being provided between them.
- An arrangement as claimed in claim 7, characterised in that a compression spring is positioned between said tube connected to said pump and said tube connected to said filter, and acts to force them apart.
- An arrangement as claimed in claim 1, characterised in that an elastic compression element is associated with said variable-length conduit and acts to force said pump and said filter apart.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI930263 | 1993-04-06 | ||
IT93MI000263U IT229778Y1 (en) | 1993-04-06 | 1993-04-06 | ARRANGEMENT OF A SUCTION UNIT IN A TANK FOR MOTOR VEHICLES |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0619425A1 true EP0619425A1 (en) | 1994-10-12 |
Family
ID=11364997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94200868A Withdrawn EP0619425A1 (en) | 1993-04-06 | 1994-04-01 | Suction system arrangement in a motor vehicle tank |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0619425A1 (en) |
BR (1) | BR9401403A (en) |
IT (1) | IT229778Y1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998028059A1 (en) * | 1996-12-23 | 1998-07-02 | Sikorsky Aircraft Corporation | Fuel intake device for fuel systems |
GB2384830A (en) * | 2001-12-26 | 2003-08-06 | Visteon Global Tech Inc | Shock absorber mounting for a fuel pump filter |
WO2009065751A1 (en) * | 2007-11-20 | 2009-05-28 | Continental Automotive Gmbh | Fuel pump |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391935A1 (en) * | 1977-05-26 | 1978-12-22 | Volkswagenwerk Ag | Petrol tank for motor vehicle - has pump mounted flexibly in bottom with flexible curved feed tube through top to reduce noise |
EP0087508A1 (en) * | 1982-02-25 | 1983-09-07 | VDO Adolf Schindling AG | Suction device |
DE3408520A1 (en) * | 1983-03-08 | 1984-09-06 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | FUEL FILTER DEVICE FOR FUEL TANKS |
EP0126318A2 (en) * | 1983-04-25 | 1984-11-28 | Nissan Motor Co., Ltd. | A filter device for a fuel tank |
JPS60147565A (en) * | 1984-01-11 | 1985-08-03 | Nissan Motor Co Ltd | In-tank pump type fuel tank |
US4590964A (en) * | 1985-04-26 | 1986-05-27 | General Motors Corporation | Noise isolation for a fuel system |
JPS61171611A (en) * | 1985-01-28 | 1986-08-02 | Nissan Motor Co Ltd | Filtering device within automobile fuel tank |
GB2172864A (en) * | 1985-03-26 | 1986-10-01 | Pierburg Gmbh & Co Kg | Fuel-conveying system |
JPS6241962A (en) * | 1985-08-15 | 1987-02-23 | Nissan Motor Co Ltd | Construction of installing feed pump for fuel tank |
EP0384440A2 (en) * | 1989-02-22 | 1990-08-29 | Mitsubishi Denki Kabushiki Kaisha | Fuel filtering device |
US5049271A (en) * | 1990-08-27 | 1991-09-17 | Filtertek, Inc. | Fuel tank filter |
EP0532427A1 (en) * | 1991-09-12 | 1993-03-17 | Compagnie Plastic Omnium | Suction device for extracting fuel from the bottom of a deformable tank |
DE4205976A1 (en) * | 1992-02-27 | 1993-09-02 | Magenwirth Gmbh Co Gustav | Fuel filter at base of fuel tank - has tubular projection at top of filter body connecting inside of filter to exterior and sliding inner face |
-
1993
- 1993-04-06 IT IT93MI000263U patent/IT229778Y1/en active IP Right Grant
-
1994
- 1994-04-01 EP EP94200868A patent/EP0619425A1/en not_active Withdrawn
- 1994-04-06 BR BR9401403A patent/BR9401403A/en not_active Application Discontinuation
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391935A1 (en) * | 1977-05-26 | 1978-12-22 | Volkswagenwerk Ag | Petrol tank for motor vehicle - has pump mounted flexibly in bottom with flexible curved feed tube through top to reduce noise |
EP0087508A1 (en) * | 1982-02-25 | 1983-09-07 | VDO Adolf Schindling AG | Suction device |
DE3408520A1 (en) * | 1983-03-08 | 1984-09-06 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | FUEL FILTER DEVICE FOR FUEL TANKS |
EP0126318A2 (en) * | 1983-04-25 | 1984-11-28 | Nissan Motor Co., Ltd. | A filter device for a fuel tank |
JPS60147565A (en) * | 1984-01-11 | 1985-08-03 | Nissan Motor Co Ltd | In-tank pump type fuel tank |
JPS61171611A (en) * | 1985-01-28 | 1986-08-02 | Nissan Motor Co Ltd | Filtering device within automobile fuel tank |
GB2172864A (en) * | 1985-03-26 | 1986-10-01 | Pierburg Gmbh & Co Kg | Fuel-conveying system |
US4590964A (en) * | 1985-04-26 | 1986-05-27 | General Motors Corporation | Noise isolation for a fuel system |
JPS6241962A (en) * | 1985-08-15 | 1987-02-23 | Nissan Motor Co Ltd | Construction of installing feed pump for fuel tank |
EP0384440A2 (en) * | 1989-02-22 | 1990-08-29 | Mitsubishi Denki Kabushiki Kaisha | Fuel filtering device |
US5049271A (en) * | 1990-08-27 | 1991-09-17 | Filtertek, Inc. | Fuel tank filter |
EP0532427A1 (en) * | 1991-09-12 | 1993-03-17 | Compagnie Plastic Omnium | Suction device for extracting fuel from the bottom of a deformable tank |
DE4205976A1 (en) * | 1992-02-27 | 1993-09-02 | Magenwirth Gmbh Co Gustav | Fuel filter at base of fuel tank - has tubular projection at top of filter body connecting inside of filter to exterior and sliding inner face |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 10, no. 378 (M - 546)<2435> 17 December 1986 (1986-12-17) * |
PATENT ABSTRACTS OF JAPAN vol. 11, no. 228 (M - 610)<2675> 24 July 1987 (1987-07-24) * |
PATENT ABSTRACTS OF JAPAN vol. 9, no. 313 (M - 437)<2036> 10 December 1985 (1985-12-10) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998028059A1 (en) * | 1996-12-23 | 1998-07-02 | Sikorsky Aircraft Corporation | Fuel intake device for fuel systems |
CN1081475C (en) * | 1996-12-23 | 2002-03-27 | 西科尔斯基飞机公司 | Fuel intake device for fuel systems |
GB2384830A (en) * | 2001-12-26 | 2003-08-06 | Visteon Global Tech Inc | Shock absorber mounting for a fuel pump filter |
US6668806B2 (en) | 2001-12-26 | 2003-12-30 | Visteon Global Technologies, Inc. | Fuel pump assembly including a filter outlet to pump inlet isolator |
WO2009065751A1 (en) * | 2007-11-20 | 2009-05-28 | Continental Automotive Gmbh | Fuel pump |
Also Published As
Publication number | Publication date |
---|---|
ITMI930263V0 (en) | 1993-04-06 |
IT229778Y1 (en) | 1999-02-05 |
BR9401403A (en) | 1994-11-29 |
ITMI930263U1 (en) | 1994-10-06 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB SE |
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17P | Request for examination filed |
Effective date: 19950408 |
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17Q | First examination report despatched |
Effective date: 19950608 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19951103 |