US3722529A - Vehicle fuel tank - Google Patents

Vehicle fuel tank Download PDF

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Publication number
US3722529A
US3722529A US00060239A US3722529DA US3722529A US 3722529 A US3722529 A US 3722529A US 00060239 A US00060239 A US 00060239A US 3722529D A US3722529D A US 3722529DA US 3722529 A US3722529 A US 3722529A
Authority
US
United States
Prior art keywords
bottom wall
tank
fuel
pipes
levels
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.)
Expired - Lifetime
Application number
US00060239A
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English (en)
Inventor
T Arakawa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3722529A publication Critical patent/US3722529A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J35/00—Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/06—Fuel tanks characterised by fuel reserve systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4673—Plural tanks or compartments with parallel flow
    • Y10T137/4857—With manifold or grouped outlets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/794—With means for separating solid material from the fluid
    • Y10T137/8013—Sediment chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87153—Plural noncommunicating flow paths
    • Y10T137/87161—With common valve operator

Definitions

  • ABSTRACT A fuel tank is provided which is blow molded for the simultaneous and integral formation of a hollow body including a multi-level bottom wall with pipes depending from different levels of the wall and being integrally formed therewith. Wells are provided which encircle the upper end portion of these pipes. In addition, a charging pipe is provided at the top of the tank. A valve is connected to the pipes depending from the bottom wall for selectively using the same.
  • This invention relates to fuel tanks of the type provided with two or more discharge pipes which are selectively employed according to the level of fuel contained within the associated tanks.
  • Prior Art It is known to provide fuel tanks according to conventional techniques, wherein there are employed two discharge pipes, one of which terminates at the bottom wall of the associated tank and the other of which projects into the tank above the bottom wall of the same.
  • the pipe which projects into the fuel tank is used for the discharge of fuel from the tank until the level of fuel therein falls below a certain level, whereafter the other of the pipes is employed for purposes of discharge.
  • Such construction has the disadvantage that it is not suitable for manufacture by economical techniques such as blow molding, whereas in addition, the construction is not suitable for use when the surface of the fuel is inclined or in cases where the surface of the fuel is disturbed as might occur when the associated vehicle is travelling over rough terrain or the like.
  • Yet another object of the invention is to provide an improved fuel tank whose operation is not disturbed by the inclining of the fuel surface within the tank or other types of disturbances to which the fuel may be subjected.
  • a fuel tank which comprises a hollow body including a bottom wall with at least two levels therein and two discharge pipes respectfully connected to the bottom wall at different of the levels and extending downwardly from the bottom wall.
  • These pipes include upper ends terminating at least substantially at the bottom wall.
  • the pipes are preferably integral with the body and form a monolithic structure therewith.
  • the bottom wall moreover includes well portions encircling the aforesaid end portions.
  • a charge pipe may also be integrally be connected with the body at a position spaced from the bottom wall.
  • the invention also relates to a method whereby the aforesaid construction is simultaneously and integrally blow molded from a plastic or other such material having suitable strength.
  • FIG. 1 is a sectional side view of a fuel tank in accordance with one embodiment of this invention
  • FIG. 2 is a sectional side view of a conventional tank
  • FIG. 3 is a sectional side view of another tank having a defect which the invention cures.
  • a type of fuel tank is known for use in a vehicle, such as a motorcycle or the like, and wherein a tank body is provided with a pair of main and secondary fuel discharge pipes, the main pipe being used most of the time and the secondary pipe being used when the remaining amount of fuel falls below a predetermined amount.
  • a tank body a is formed with a substantially rectangular cross-section and main and secondary discharge tubes b and c are fixed thereto with their inserted portions having different relative heights. This construction is however not suitable for blow molding manufacturing techniques.
  • FIG. 3 To provide a construction suitable for blow molding, there can be considered a construction, as shown in FIG. 3, wherein a tank body a is provided at a proper height in one side wall thereof with a main discharge pipe 11 and in the bottom wall thereof with a secondary discharge pipe 0 in such a manner that pipes b and c project integrally therefrom.
  • This construction involves the drawback that if the liquid surface of the fuel is disturbed or inclined during the use of the main discharge pipe b, the inner end opening of the pipe b' is often exposed above the liquid surface.
  • a hollow tank body 1 (FIG. 1) is provided with a pair of main and secondary fuel discharge pipes 2 and 3 which are simultaneously and integrally formed with the tank by blow molding from a plastic or metal.
  • the main fuel discharge pipe 2 is provided at almost the center of the bottom wall of the tank body 1 and projects downwardly.
  • the bottom wall of the tank body 1 is expanded downward at one side of the center to have a plurality of difierent levels and to form integrally a subsidiary fuel chamber 4.
  • the secondary fuel discharge pipe 3 is provided at the bottom wall of the chamber 4 and also projects downwardly. The pipes are thus connected to different levels of the bottom wall and include upper end portions which terminate at the bottom wall.
  • the bottom wall of the tank body 1 is depressed at the base end area of each pipe 2 and 3 to form wells or fuel retainers 5 and 6. This prevents the discharge of the fuel from being hampered by a disturbing or inclination of the liquid surface.
  • the two discharge pipes 2 and 3 are in communication with a carburetor 8 of an engine through a single common valve 7.
  • the tank body 1 has, on its upper surface, a projecting fuel inlet opening 9 which is also formed simultaneously and integrally with the tank by blow molding.
  • Element 10 is a cap mounted thereon.
  • the main and secondary discharge pipes 2 and 3 are provided on the bottom wall of the tank body to project downwardly so that it is easy to form them simultaneously and integrally by blow molding.
  • Each discharge pipe 2 or 3 opens into the bottom of the tank body 1 whereby the defect which occurs when a pipe is opened at the side surface of the tank body (FIG. 3) is avoided.
  • the tank body 1 is expanded downwardly at a portion of the bottom surface thereof to form the subsidiary fuel chamber 4, the secondary discharge pipe 3 being arranged to project from the bottom surface of the chamber 4 so that the reserve fuel can be securely obtained by a change over operation.
  • a fuel tank for a vehicle comprising a hollow body including a bottom wall with two levels and main and secondary discharge pipes respectively connected to the bottom wall at the different levels and extending downwardly from the bottom wall, said main discharge pipe being connected at the higher of the two levels,
  • said pipes including upper ends terminating, at least substantially, at the bottom wall; said main discharge pipe being located substantially centrally in said hot- 1 tom wall, said hollow body being completely open in its interior and providing free and unrestricted flow of fuel between said levels so that when the fuel fills the tank to a height above the higher level the fuel will have a common surface at both levels, said body including side walls which are continuous and non-apertured, and a top wall, and an inlet pipe integral with the top wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US00060239A 1969-08-14 1970-08-03 Vehicle fuel tank Expired - Lifetime US3722529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1969076693U JPS4940167Y1 (enExample) 1969-08-14 1969-08-14

Publications (1)

Publication Number Publication Date
US3722529A true US3722529A (en) 1973-03-27

Family

ID=13612540

Family Applications (1)

Application Number Title Priority Date Filing Date
US00060239A Expired - Lifetime US3722529A (en) 1969-08-14 1970-08-03 Vehicle fuel tank

Country Status (3)

Country Link
US (1) US3722529A (enExample)
JP (1) JPS4940167Y1 (enExample)
FR (1) FR2058265B1 (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147269A (en) * 1977-11-14 1979-04-03 Werts David A Fuel oil storage tank
DE2942922A1 (de) * 1979-10-24 1981-04-30 Daimler-Benz Ag, 7000 Stuttgart Kraftstoffbehaelter aus kunststoff
US4595030A (en) * 1984-03-02 1986-06-17 Kawasaki Jukogyo Kabushiki Kaisha Fuel tank for a water craft
US4657156A (en) * 1984-03-23 1987-04-14 Toyota Jidosha Kabushiki Kaisha Fuel tank for use in a motor vehicle
US6098657A (en) * 1998-06-09 2000-08-08 Multistack, Inc. In-line fluid flow trap for modular refrigeration systems
US20040155043A1 (en) * 2003-02-12 2004-08-12 Scott Waters Partitioned fuel tank and fuel delivery system
ITPD20100066A1 (it) * 2010-03-05 2011-09-06 Shahar Tsabari Dispositivo per la somministrazione di fluidi in un corpo animale, particolarmente per la somministrazione di agenti terapici tramite infusione endovasale

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147269A (en) * 1977-11-14 1979-04-03 Werts David A Fuel oil storage tank
DE2942922A1 (de) * 1979-10-24 1981-04-30 Daimler-Benz Ag, 7000 Stuttgart Kraftstoffbehaelter aus kunststoff
US4595030A (en) * 1984-03-02 1986-06-17 Kawasaki Jukogyo Kabushiki Kaisha Fuel tank for a water craft
US4657156A (en) * 1984-03-23 1987-04-14 Toyota Jidosha Kabushiki Kaisha Fuel tank for use in a motor vehicle
US6098657A (en) * 1998-06-09 2000-08-08 Multistack, Inc. In-line fluid flow trap for modular refrigeration systems
US20040155043A1 (en) * 2003-02-12 2004-08-12 Scott Waters Partitioned fuel tank and fuel delivery system
US6857661B2 (en) 2003-02-12 2005-02-22 American Ironhorse Motorcycle Company Partitioned fuel tank and fuel delivery system
ITPD20100066A1 (it) * 2010-03-05 2011-09-06 Shahar Tsabari Dispositivo per la somministrazione di fluidi in un corpo animale, particolarmente per la somministrazione di agenti terapici tramite infusione endovasale
WO2011107969A3 (en) * 2010-03-05 2011-11-24 Shahar Tsabari Device for administering therapeutic agents vie endovascular infusion
CN102834128A (zh) * 2010-03-05 2012-12-19 沙哈尔·察巴里 用于经由血管内输注来施用治疗剂的装置
CN102834128B (zh) * 2010-03-05 2015-11-25 沙哈尔·察巴里 用于经由血管内输注来施用治疗剂的装置
EA023271B1 (ru) * 2010-03-05 2016-05-31 Шахар Тсабари Устройство для введения жидкостей в животный организм посредством эндоваскулярной инфузии
US9603994B2 (en) 2010-03-05 2017-03-28 Shahar TSABARI Device for administering liquids into an animal body, in particular for administering therapeutic agents via endovascular infusion

Also Published As

Publication number Publication date
JPS4940167Y1 (enExample) 1974-11-05
FR2058265A1 (enExample) 1971-05-28
FR2058265B1 (enExample) 1974-03-22

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