SE450514B - Fuel accumulator - Google Patents

Fuel accumulator

Info

Publication number
SE450514B
SE450514B SE8502846A SE8502846A SE450514B SE 450514 B SE450514 B SE 450514B SE 8502846 A SE8502846 A SE 8502846A SE 8502846 A SE8502846 A SE 8502846A SE 450514 B SE450514 B SE 450514B
Authority
SE
Sweden
Prior art keywords
fuel
chamber
tubular
petrol
chamber part
Prior art date
Application number
SE8502846A
Other languages
Swedish (sv)
Other versions
SE8502846D0 (en
SE8502846L (en
Inventor
J Andreasson
Original Assignee
Scandmec Ab
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 Scandmec Ab filed Critical Scandmec Ab
Priority to SE8502846A priority Critical patent/SE450514B/en
Publication of SE8502846D0 publication Critical patent/SE8502846D0/en
Priority to GB8613762A priority patent/GB2177014B/en
Priority to DE19863619076 priority patent/DE3619076A1/en
Priority to FR868608262A priority patent/FR2583004B1/en
Priority to CA 511229 priority patent/CA1278472C/en
Priority to IT2074086A priority patent/IT1189157B/en
Priority to US06/872,286 priority patent/US4763632A/en
Publication of SE8502846L publication Critical patent/SE8502846L/en
Publication of SE450514B publication Critical patent/SE450514B/en

Links

Classifications

    • 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
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A fuel accumulator for the fuel tank of petrol driven saws, garden tools or outboard engines which are likely to be tipped and temporarily starved of petrol consists of a porous stable material, preferably sintered polyethylene or bronze with a pore size of 70 microns in case of petrol, which encloses an inner cylinder from which the fuel is pumped to the engine. The fuel accumulator inside the fuel tank has an outer tubular casing (2) with a flat bottom (3) and an inner tubular wall (4), all made of porous material,pref. sintered polyethylene. The pore size should be chosen to suit the type of fuel, i.e. 70 microns for petrol, so that it acts as a self-sucking filter. A flat cover (5) divides an outer chamber (7) from the inner chamber (8) which is joined by a hose on the nipple (6) to the engine. A cylindrical weight (9) e.g. a rolled-up metal strip, holds the accumulator at the fuel tank bottom. A vent hole (10) of e.g. 0.8 mm dia. ensures a rapid filling.

Description

l5 20 25 30 35 450 514 men kan ges godtycklig utformning, med en i huvudsak lodrät längsgående axel, vilken rörformiga del 2 är försedd med en i huvudsak plan och horisontell botten 3. I nämnda yttre rörformiga del 2 är en inre rörformig del 4, likaledes cylinderformad, anordnad med ena änddelen anliggande mot botten 3, varvid den inre rörformiga delen 4 är anordnad i huvudsak koaxialt med den yttre rörformiga delen 2. 450 514 but can be given any design, with a substantially vertical longitudinal axis, which tubular part 2 is provided with a substantially flat and horizontal bottom 3. In said outer tubular part 2 is an inner tubular part 4, likewise cylindrical, arranged with one end part abutting against the bottom 3, the inner tubular part 4 being arranged substantially coaxially with the outer tubular part 2.

Delarna 2 och 4 kan vara svetsade vid eller sammangjutna med botten 3. Materialet i de rörformiga delarna 2 och 4 samt företrädesvis även i botten 3 utgöres av poröst material såsom sintrad polyeten där porstorleken väljes i beroende av bränslet så att delarna och botten erhåller funktionen av ett självsugande filter. Med bensin som bränsle väljs porstorleken företrädesvis till ca 70 my.The parts 2 and 4 can be welded to or cast with the bottom 3. The material in the tubular parts 2 and 4 and preferably also in the bottom 3 consists of porous material such as sintered polyethylene where the pore size is selected depending on the fuel so that the parts and the bottom get the function of a self-priming filter. With petrol as fuel, the pore size is preferably chosen to be about 70 microns.

Härigenom erhålles den så kallade "sockerbitseffekten", varför filtermaterialet ogärna släpper tillbaka bränslet när det en gäng sugits upp i materialet. De båda rörformiga delarna 2 och 4 är lika långa, varför en i huvudsak plan och horisontell toppdel 5 i kontakt med de nämnda rörformiga delarna avskärmar en cylinderformad kammardel 7, bildad mellan den yttre och den inre rörformiga delen 2 och_ 4, från en inre kammardel 8, innesluten inom den inre rörformiga delen 4. I toppdelen 5 är ett genomgående hål 6 anordnat centrerat över den inre kammardelen 8.This results in the so-called "sugar bite effect", which is why the filter material is reluctant to release the fuel when it has been sucked up into the material. The two tubular parts 2 and 4 are of equal length, so that a substantially flat and horizontal top part 5 in contact with the said tubular parts shields a cylindrical chamber part 7, formed between the outer and the inner tubular part 2 and 4, from an inner chamber part 8, enclosed within the inner tubular part 4. In the top part 5 a through hole 6 is arranged centered over the inner chamber part 8.

I utföringsexemplet utgöres toppdelen 5 med hålet 6 av en slangnippeldel med nippeln vänd ut från bränsleuppsam~ lingskammaren. För att bränsleuppsamlingskammaren skall befinna sig i kontakt med bränslet i tanken är den cylinder- formade kammardelen 7 försedd med en tyngd 9. Tyngden 9 utgöres av en rullad plåt med en längsgående öppning i mantelytan, företrädesvis parallell med kammardelens '7'längsgående axel. Vid drift ger det i det porösa mate- rialet uppsugna bränslet extra tyngd åt bränsleuppsamlings- kammaren.In the exemplary embodiment, the top part 5 with the hole 6 consists of a hose nipple part with the nipple facing out from the fuel collection chamber. In order for the fuel collection chamber to be in contact with the fuel in the tank, the cylindrical chamber part 7 is provided with a weight 9. The weight 9 consists of a rolled plate with a longitudinal opening in the jacket surface, preferably parallel to the longitudinal axis of the chamber part '7'. During operation, the fuel absorbed in the porous material gives extra weight to the fuel collection chamber.

I bränsleuppsamlingskammaren enligt uppfinningen utgör den yttre rörformiga delen 2 uppsamlingskärl för bränslet 10 15 20 25 30 3 450 514 och den inre rörformiga delen 4 filter. Den cylinderformade kammardelen 7 och den inre kammardelen 8 är slutna och ej i kommunikation med varandra. När bränsleuppsamlingskam- maren kommer i kontakt med bränslet i tanken, sugs bränslet snabbt upp av den yttre rörformiga delen 2 och in i den cylinderformade kammardelen 7. Genom att toppdelen 5 är försedd med ett avluftningshål 10 över den cylinderfor-. made kammardelen 7, vilket hål enligt utföringsexemplet har diametern 0,8 mm, fylls nämnda kammardel 7 helt med bränsle. Det porösa materialet, här sintrad polyeten, suger ät sig bränsle snabbare än införseln genom avluftnings- hálet, varför även den yttre rörformiga delen 2 har en filtrerande funktion. Genom det porösa materialet i den inre rörformiga delen 4 sugs bränslet in i den inre kammar- delen 8, varvid en ytterligare filtrering av bränslet erhålles. Genom hålet 6 tages bränslet till förbränninge- motorn. Vid drift av t ex en motorsåg under tiltning suger den inre kammardelen 8 den cylinderformade kammar- delen 7 helt tom innan eventuella bränslestörningar kan uppstå. Så länge en del av bränsleuppsamlingskammaren står i kontakt med bränslet i bränsletanken erhålles uppfyllnad och perfekt motorgàng.In the fuel collection chamber according to the invention, the outer tubular part 2 constitutes collection vessels for the fuel 10 15 20 25 30 3 450 514 and the inner tubular part 4 filters. The cylindrical chamber part 7 and the inner chamber part 8 are closed and not in communication with each other. When the fuel collection chamber comes into contact with the fuel in the tank, the fuel is quickly sucked up by the outer tubular part 2 and into the cylindrical chamber part 7. Because the top part 5 is provided with a vent hole 10 over the cylinder. made chamber part 7, which hole according to the exemplary embodiment has a diameter of 0.8 mm, said chamber part 7 is completely filled with fuel. The porous material, here sintered polyethylene, absorbs fuel faster than the introduction through the vent hole, so that the outer tubular part 2 also has a filtering function. Through the porous material in the inner tubular part 4, the fuel is sucked into the inner chamber part 8, whereby a further filtration of the fuel is obtained. Through the hole 6, the fuel is taken to the internal combustion engine. When operating, for example, a chainsaw during tilting, the inner chamber part 8 sucks the cylindrical chamber part 7 completely empty before any fuel disturbances can occur. As long as a part of the fuel collection chamber is in contact with the fuel in the fuel tank, filling and perfect engine operation are obtained.

I och med att tyngden 9 är anordnad i den cylinderformade kammardelen 7 elimineras risken för att eventuella avskavda partiklar skall komma in i förgasaren, eftersom ytterligare filtrering av bränslet erhålls vid passage genom den inre rörformiga delen 4.Since the weight 9 is arranged in the cylindrical chamber part 7, the risk of any abraded particles entering the carburettor is eliminated, since further filtration of the fuel is obtained when passing through the inner tubular part 4.

Den filtrerande bränsleuppsamlingskammaren enligt uppfin- ningen, som är uppbyggd av få detaljer samt har en enkel och funktionssäker placering av tyngden, ger en gàngreserv på ca 30 sekunder. Motorgången blir mycket störningsfri och vid tomkörning av tanken återfylls den filtrerande bränsleuppsamlingskammaren snabbt tack vara avluftningshàlet.The filtering fuel collection chamber according to the invention, which is built up of few details and has a simple and reliable placement of the weight, provides a running reserve of about 30 seconds. The engine passage becomes very interference-free and when the tank is emptied, the filtering fuel collection chamber is quickly refilled thanks to the vent hole.

Claims (1)

1. v 10 15 20 25 450 514 PÅTENTKRAV1. v 10 15 20 25 450 514 PATENT REQUIREMENTS 1. Bränsleuppsamlingskammare anordnad i en bränsletank för gângreserv hos en förbränningsmotor, k ä n n e t e c k - n a d därav, att kammaren utgöres av en kropp (1) i poröst formfast material, som kan tillföra kammaren bränsle under motorns gång, vilken kropp (1) är dubbelmantlad så att det bildas dels en kammardel (7) mellan den inre och den yttre manteln, dels en inre kammardel (8) innesluten av den inre manteln, varvid en avloppsanordning (6) för anslutning till förbränningskammaren står i kommunikation med den inre kammardelen (8). Bränsleuppsamlingskammaren enligt patentkrav 1, k ä n n e- t e c k n a d därav, att kroppen (1) utgöres av en yttre rörformig del (2) med botten (3) i poröst materia1,en inre rörformig del (4) i poröst material med ena änddelen fäst vid nämnda botten (3) och en toppdel (5) i godtyckligt mate- rial sâ anordnad över den yttre och den inre rörformiga delen (2 och 4) att den mellan den yttre och den inre rör- formiga delen (2 och 4) bildade rörformiga kammardelen (7) och den inom den inre rörformiga delen (4) ïnneslutna kam- mardelen (8) är slutna och utan direktkommunikation med varandra, vilken toppdel är försedd med nämnda avloppsanord- 'ning (6) över kammardelen (8) för anslutning till förbrän- ningskammaren samt med ett avluftningshàl (10) över den rör- formiga kammardelen (7), vilket avluftningshål företrädesvis är försett med ett galler eller liknande. Bränsleuppsamlingskammare enligt patentkrav 1, k ä n n e - t e c k n a d därav, att nämnda porösa material utgöres av sintrad plast såsom polyeten, sintrad brons eller lik- nande med en porstorlek anpassad till avsett bränsle. 450 514 Anordning enligt patentkrav 3, k ä n n e t e c k n a d därav, att nämnda porstorlek är ca 70 my när det avsedda bränslet är bensínbaserat. Anordning enligt något av föregående patentkrav, k ä n n e t e c k n a d därav, att det i den rörformiga kammardelen (7) är anordnat en tyngd såsom en rullad plåt (9) med en längsgående öppning i huvudsak parallell med kammardelens (7) längsgående axel, ett avkapat rör eller en spiralfjäder.Fuel collection chamber arranged in a fuel tank for the fuel reserve of an internal combustion engine, characterized in that the chamber consists of a body (1) in porous form-retaining material, which can supply fuel to the chamber during engine operation, which body (1) is double-jacketed so that a chamber part (7) is formed between the inner and the outer jacket, and an inner chamber part (8) enclosed by the inner jacket, a drainage device (6) for connection to the combustion chamber communicating with the inner chamber part (8). ). The fuel collection chamber according to claim 1, characterized in that the body (1) consists of an outer tubular part (2) with the bottom (3) in porous material1, an inner tubular part (4) in porous material with one end part attached at said bottom (3) and a top part (5) in any material so arranged over the outer and the inner tubular part (2 and 4) that the one formed between the outer and the inner tubular part (2 and 4) the tubular chamber part (7) and the chamber part (8) enclosed within the inner tubular part (4) are closed and without direct communication with each other, which top part is provided with said drain device (6) over the chamber part (8) for connection to the combustion chamber and with a vent hole (10) over the tubular chamber part (7), which vent hole is preferably provided with a grid or the like. Fuel collection chamber according to claim 1, characterized in that said porous material consists of sintered plastic such as polyethylene, sintered bronze or the like with a pore size adapted to the intended fuel. 450 514 Device according to claim 3, characterized in that said pore size is about 70 microns when the intended fuel is petrol-based. Device according to one of the preceding claims, characterized in that a weight such as a rolled plate (9) with a longitudinal opening substantially parallel to the longitudinal axis of the chamber part (7) is arranged in the tubular chamber part (7), a cut-off tube or a coil spring.
SE8502846A 1985-06-10 1985-06-10 Fuel accumulator SE450514B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8502846A SE450514B (en) 1985-06-10 1985-06-10 Fuel accumulator
GB8613762A GB2177014B (en) 1985-06-10 1986-06-06 Fuel collector
DE19863619076 DE3619076A1 (en) 1985-06-10 1986-06-06 FUEL COLLECTOR
FR868608262A FR2583004B1 (en) 1985-06-10 1986-06-09 FUEL COLLECTOR PROVIDED IN A FUEL TANK AS AN OPERATING FUEL RESERVE FOR A COMBUSTION ENGINE
CA 511229 CA1278472C (en) 1985-06-10 1986-06-10 Fuel collector
IT2074086A IT1189157B (en) 1985-06-10 1986-06-10 FUEL COLLECTOR
US06/872,286 US4763632A (en) 1985-06-10 1986-06-10 Fuel collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8502846A SE450514B (en) 1985-06-10 1985-06-10 Fuel accumulator

Publications (3)

Publication Number Publication Date
SE8502846D0 SE8502846D0 (en) 1985-06-10
SE8502846L SE8502846L (en) 1986-12-11
SE450514B true SE450514B (en) 1987-06-29

Family

ID=20360506

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8502846A SE450514B (en) 1985-06-10 1985-06-10 Fuel accumulator

Country Status (1)

Country Link
SE (1) SE450514B (en)

Also Published As

Publication number Publication date
SE8502846D0 (en) 1985-06-10
SE8502846L (en) 1986-12-11

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