EP0562536A1 - A support for the intake pipe of a fuel-supply pump, particularly for an internal combustion engine - Google Patents

A support for the intake pipe of a fuel-supply pump, particularly for an internal combustion engine Download PDF

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Publication number
EP0562536A1
EP0562536A1 EP93104720A EP93104720A EP0562536A1 EP 0562536 A1 EP0562536 A1 EP 0562536A1 EP 93104720 A EP93104720 A EP 93104720A EP 93104720 A EP93104720 A EP 93104720A EP 0562536 A1 EP0562536 A1 EP 0562536A1
Authority
EP
European Patent Office
Prior art keywords
tank
fuel
intake pipe
support according
support
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Withdrawn
Application number
EP93104720A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giovanni C/O Siceb S.P.A. Bianco
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICEB SpA
Original Assignee
SICEB SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SICEB SpA filed Critical SICEB SpA
Publication of EP0562536A1 publication Critical patent/EP0562536A1/en
Withdrawn legal-status Critical Current

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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
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank

Definitions

  • the present invention relates to a support for the intake pipe of a fuel-supply pump, particularly for an internal combustion engine, comprising a body which is intended to be housed in a fuel tank bearing on the bottom wall thereof, the body defining a chamber, which is substantially isolated from the tank and communicates therewith through an inlet duct, into which an end of the intake pipe opens.
  • the body is generally constituted by a plurality of elements which are connected to each other so as to define a chamber having a base which is intended to bear on the internal surface of the bottom wall of the fuel tank, and above which the end of the intake pipe, which is furthest from the pump, is disposed.
  • the object of the present invention is to propose a support for the intake pipe of a fuel-supply pump which does not have the aforementioned disadvantages of the prior art.
  • the body has an opening facing the bottom of the tank and that the intake pipe can be disposed with its end in the opening, substantially at the bottom of the tank.
  • the support according to the invention enables the intake pipe of the pump to be located directly in contact with the internal surface of the bottom wall of the tank so that optimal use can be made of the capacity of the tank.
  • the support is also formed by a smaller number of elements than that of the prior art, and is thus structurally simpler and cheaper to produce.
  • a fuel tank for supplying an internal combustion engine is generally indicated 1.
  • An upper wall of the tank is indicated 2 and the bottom wall of the tank is indicated 3.
  • the upper wall 2 has a hole 4 in which a head 5 is fitted and anchored to the wall 2, the head having two internal ducts 6 and 7 which are connected to a delivery pipe 8 and to a return pipe 9, respectively, for the fuel.
  • a fuel-supply pump 10 of the suction type the top of which is connected to the delivery pipe 8 and the bottom of which is connected to an intake pipe 11 having an end disposed near the bottom wall 3 of the tank 1.
  • the intake pipe 11 has a filter 12, in known manner.
  • the pump 10 is supported below the head 5 by a body 13 of elastomeric material or the like, having a side wall 14 and a top wall 15 which, together with the bottom wall 3 of the tank, define a chamber 16 known as the "stilling basin" into which the end of the intake pipe 11 with the filter 12 opens.
  • the chamber 16 is substantially isolated from the tank and communicates therewith through a duct 14b in the side wall 14 adjacent the bottom 3 of the tank.
  • the side wall 14 has an enlarged support base 14a which surrounds a lower opening 13a of the body 13 and acts as a seal between the body 13 and the internal surface of the bottom wall 3 of the tank.
  • the top wall 15 of the body includes a sleeve 18 which is formed integrally with the wall 15 and is perpendicular thereto, the sleeve partially surrounding the casing of the pump 10 and being clamped to the pump 10 by means of a fixing ring 20. Since the sleeve 18 is made of elastomeric material, it also has the dual function of forming a seal between the body 13 and the pump 10 and of damping and absorbing the vibrations produced by the pump 10 in operation.
  • a rigid cover 21 On top of the body 13 is a rigid cover 21 the shape of which corresponds to that of the top wall 15 and of the sleeve 18 and which has the function of structurally stiffening the upper portion of the body 13, the cover having a tubular appendage 22 which projects towards the head 5 and in which the return duct 9 is slidably inserted.
  • the return pipe 9 collects the excess fuel which has been sent to the engine supply system and has not been used and conveys it to an ejector device 24 of known type disposed near the bottom wall 3 of the tank near the duct 14b.
  • the tubular appendage 22 is associated telescopically with the return pipe 9, and a helical spring 23 interposed between it and the head 5 has the function of keeping the head 5 and the cover 21 apart and consequently keeping the body 13 in contact with the bottom wall 3 of the tank.
  • FIG. 2 in which elements identical or similar to those described above are indicated by the same reference numerals, shows a second embodiment of the support according to the invention.
  • the fuel-supply pump (not shown in the drawing) is outside the tank 1 and only a fuel intake pipe 8a is therefore present, with its end 11 bearing on the bottom wall 3 of the tank.
  • the top wall 15 of the body 13 has a through-hole 17 in an approximately central position, through which extends a tubular duct 19 formed integrally with the rigid cover 21.
  • Figure 3 shows a variant of the support of Figure 1.
  • the body 13 is formed entirely of rigid material and the upper cover is therefore absent.
  • the appendage 22 is formed integrally with the body 13.
  • a pair of rings 26a and 26b of elastomeric material or the like are also interposed between the sleeve 18 and the pump 10 and their function is both to form seals between the body 13 and the pump 10 and to act as vibration-damping devices for the pump 10 in operation.
  • the fact that the end of the intake pipe 11 of the fuel-supply pump can be disposed adjacent the bottom of the tank is particularly advantageous since, in comparison with the prior art, it enables a considerably more efficient use of the capacity of the tank to be made.

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)
EP93104720A 1992-03-27 1993-03-23 A support for the intake pipe of a fuel-supply pump, particularly for an internal combustion engine Withdrawn EP0562536A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT92TO000281A ITTO920281A1 (it) 1992-03-27 1992-03-27 Sopporto per il condotto d'aspirazione di una pompa d'alimentazione del combustibile, particolarmente per un motore a combustione interna
ITTO920281 1992-03-27

Publications (1)

Publication Number Publication Date
EP0562536A1 true EP0562536A1 (en) 1993-09-29

Family

ID=11410332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104720A Withdrawn EP0562536A1 (en) 1992-03-27 1993-03-23 A support for the intake pipe of a fuel-supply pump, particularly for an internal combustion engine

Country Status (3)

Country Link
EP (1) EP0562536A1 (pt)
BR (1) BR9300427A (pt)
IT (1) ITTO920281A1 (pt)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758589A2 (en) * 1995-08-11 1997-02-19 SOLVAY (Société Anonyme) Module for extracting fluid from a hollow vessel
WO1997023723A1 (de) * 1995-12-21 1997-07-03 Robert Bosch Gmbh Kraftstoffleitung für kraftstoffördereinrichtungen von kraftfahrzeugen
EP0798458A1 (fr) * 1996-03-27 1997-10-01 Bitron France Dispositif de pompage immergé dans un réservoir pour véhicule automobile
EP1103717A1 (de) * 1999-11-23 2001-05-30 Mannesmann VDO AG In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit
CN103206324A (zh) * 2012-01-17 2013-07-17 罗伯特·博世有限公司 用于输送燃料的装置
DE10228760B4 (de) 2001-06-29 2019-05-16 Denso Corporation Kraftstoffzufuhrvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309155A (en) * 1978-05-25 1982-01-05 Volkswagenwerk Aktiengesellschaft Vehicle fuel tank having vented internal fuel pump
JPS59168256A (ja) * 1983-03-12 1984-09-21 Nissan Motor Co Ltd 燃料タンクのフイ−ドポンプ支持構造
EP0314068A2 (en) * 1987-10-26 1989-05-03 Nippondenso Co., Ltd. Fuel supply device for vehicles
EP0378796A2 (en) * 1988-12-07 1990-07-25 Nissan Motor Co., Ltd. Fuel tank structure for automotive vehicle
EP0379631A1 (de) * 1988-12-20 1990-08-01 VDO Adolf Schindling AG Kraftstoff-Fördereinrichtung
DE3914081A1 (de) * 1989-04-28 1990-11-08 Bosch Gmbh Robert Vorrichtung zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309155A (en) * 1978-05-25 1982-01-05 Volkswagenwerk Aktiengesellschaft Vehicle fuel tank having vented internal fuel pump
JPS59168256A (ja) * 1983-03-12 1984-09-21 Nissan Motor Co Ltd 燃料タンクのフイ−ドポンプ支持構造
EP0314068A2 (en) * 1987-10-26 1989-05-03 Nippondenso Co., Ltd. Fuel supply device for vehicles
EP0378796A2 (en) * 1988-12-07 1990-07-25 Nissan Motor Co., Ltd. Fuel tank structure for automotive vehicle
EP0379631A1 (de) * 1988-12-20 1990-08-01 VDO Adolf Schindling AG Kraftstoff-Fördereinrichtung
DE3914081A1 (de) * 1989-04-28 1990-11-08 Bosch Gmbh Robert Vorrichtung zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 22 (M-354)(1745) 30 January 1985 & JP-A-59 168 256 ( NISSAN JIDOSHA K.K. ) 21 September 1984 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758589A2 (en) * 1995-08-11 1997-02-19 SOLVAY (Société Anonyme) Module for extracting fluid from a hollow vessel
EP0758589A3 (en) * 1995-08-11 1998-04-29 SOLVAY (Société Anonyme) Module for extracting fluid from a hollow vessel
WO1997023723A1 (de) * 1995-12-21 1997-07-03 Robert Bosch Gmbh Kraftstoffleitung für kraftstoffördereinrichtungen von kraftfahrzeugen
CN1072769C (zh) * 1995-12-21 2001-10-10 罗伯特.博施有限公司 用于机动车之燃料输送装置的燃料管道
EP0798458A1 (fr) * 1996-03-27 1997-10-01 Bitron France Dispositif de pompage immergé dans un réservoir pour véhicule automobile
FR2746784A1 (fr) * 1996-03-27 1997-10-03 Bitron France Dispositif de pompage immerge dans un reservoir pour vehicule automobile
EP1103717A1 (de) * 1999-11-23 2001-05-30 Mannesmann VDO AG In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit
US6478014B1 (en) 1999-11-23 2002-11-12 Mannesmann Vdo Ag Delivery unit arranged in a surge chamber of a fuel tank of a motor vehicle
DE10228760B4 (de) 2001-06-29 2019-05-16 Denso Corporation Kraftstoffzufuhrvorrichtung
CN103206324A (zh) * 2012-01-17 2013-07-17 罗伯特·博世有限公司 用于输送燃料的装置
CN103206324B (zh) * 2012-01-17 2017-04-12 罗伯特·博世有限公司 用于输送燃料的装置

Also Published As

Publication number Publication date
ITTO920281A0 (it) 1992-03-27
BR9300427A (pt) 1993-10-05
ITTO920281A1 (it) 1993-09-27

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