EP0455234A1 - Modular supply device for an internal combustion engine - Google Patents

Modular supply device for an internal combustion engine Download PDF

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Publication number
EP0455234A1
EP0455234A1 EP91107042A EP91107042A EP0455234A1 EP 0455234 A1 EP0455234 A1 EP 0455234A1 EP 91107042 A EP91107042 A EP 91107042A EP 91107042 A EP91107042 A EP 91107042A EP 0455234 A1 EP0455234 A1 EP 0455234A1
Authority
EP
European Patent Office
Prior art keywords
coupling
lever
fact
tab
couplings
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Withdrawn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
EP91107042A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gianluigi Lenzi
Aureliano Lionello
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.)
Weber SRL
Original Assignee
Weber SRL
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 Weber SRL filed Critical Weber SRL
Publication of EP0455234A1 publication Critical patent/EP0455234A1/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Withdrawn legal-status Critical Current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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
    • F02D9/1095—Rotating on a common axis, e.g. having a common shaft
    • 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
    • F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
    • F02M13/02—Separate carburettors
    • F02M13/023—Special construction of the control rods
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10104—Substantially vertically arranged ducts
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10216—Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
    • F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve

Definitions

  • the present invention relates to an internal combustion engine supply device of the type comprising a number of electromagnetic fuel metering and atomizing valves, each designed to feed atomized fuel into a conduit supplied with air and the opening of which is controlled by a respective throttle valve.
  • each conduit provides for feeding a mixture of air and fuel to at least one cylinder on the engine.
  • Each air conduit is formed inside a branch of the air manifold fitted to the engine, each of which branches presents a tubular projection communicating with the conduit formed inside the branch and which forms a seat for a fuel metering and atomizing valve.
  • each conduit Upstream from the fuel metering and atomizing valve, each conduit houses a throttle for controlling air supply along the conduit.
  • the device For feeding fuel to each of the metering and atomizing valves, provision is normally made for a pipe connected by a number of fittings to each valve. Finally, the device normally presents a pressure regulator for regulating the pressure of the fuel inside the supply pipe, and having a fuel inlet hole communicating with the supply pipe, and an outlet hole connected to a drain pipe forming part of the device.
  • Makers of supply devices of the aforementioned type must therefore design and manufacture a wide range of different types, each of which can only be assembled on one type of engine, which inevitably means producing and storing large numbers of different components and finished devices.
  • Yet a further object of the present invention is to provide a supply device that is highly straightforward in design, highly reliable, and cheap to produce.
  • an internal combustion engine supply device of the type comprising a number of electromagnetic fuel metering and atomizing valves, each supplying atomized fuel to a conduit supplied with air and the opening of which is controlled by a respective throttle valve, said conduit providing for supplying an air and fuel mixture to at least one cylinder on the engine; characterised by the fact that it comprises: a number of couplings, each forming one of said conduits and having a tubular projection extending from the lateral wall of said coupling and forming a seat for one of said valves communicating with said conduit; said tubular projection having two coaxial fittings projecting from opposite sides of said tubular projection and communicating with said seat; and each said coupling having two supports for an oscillating shaft integral with one of said throttles; a supporting plate having a number of perforations, each constituting a seat for a respective said coupling; and means for securing said plate to said engine; means for connecting each said coupling to said plate; a number of pipe sections, each having a first
  • the device according to the present invention substantially comprises a number of couplings 1, each forming a conduit 2 (Fig.3) for air drawn in from the top of coupling 1.
  • Each coupling 1 presents a tubular projection 3 extending from the lateral wall of coupling 1 and forming a seat 5 for a respective known electromagnetic fuel metering and atomizing valve 6.
  • Each tubular projection 3, the axis of which forms a given acute angle with the axis of conduit 2, presents two fittings 7 (Fig.s 1 and 2) projecting from opposite sides of projection 3 and each communicating with seat 5, as shown clearly in Fig.s 1, 2 and 3.
  • Each coupling 1 presents two supports 8 (Fig.7) for an oscillating shaft 9 integral with a throttle valve 10 controlling the air passage along conduit 2.
  • the device also comprises a supporting plate 13 having a number of perforations 14, each forming a seat for a respective coupling 1, the top end of which is conveniently inserted inside perforation 14 as shown in Fig.s 1 and 3.
  • Supporting plate 13 also presents means for securing it to the engine, which means may be of any suitable type comprising, for example, perforations 15 (Fig.2) and fastening members such as brackets, screws, bolts or similar.
  • the device also comprises fastening means indicated as a whole by 16 (Fig.s 5 and 6) for connecting each coupling 1 to supporting plate 13 and described in detail later on; and a number of pipe sections 17 (Fig.s 1 and 2), each having a first end 18 connected to one of fittings 7 on one coupling 1, and a second end 19 connected to a fitting 7 on an adjacent coupling 1, so as to form, via said pipe sections 17 and fittings 7, a first continuous pipe 20 (Fig.1) for supplying fuel to metering and atomizing valves 6.
  • the device also comprises drive means indicated as a whole by 21 (Fig.2) for transmitting rotation between the shafts 9 of adjacent couplings 1 as described in detail later on.
  • Fastening means 16 for connecting each coupling 1 to supporting plate 13 comprise at least two flanges 24 (Fig.s 6 and 7) projecting laterally from lateral wall 4 of coupling 1 and resting on the lower surface of supporting plate 13; and two threaded rods 25, each secured to one of flanges 24, inserted through a hole in plate 13 and fitted with a respective lock nut 26.
  • Fastening means 16 may also conveniently provide for fitting coupling 1 with a nozzle 27 having two tabs in which are formed holes engaged by rods 25 as shown in Fig.6.
  • Each fitting 7 presents an annular projection 28 defining a cylindrical seat 29 housing a respective end 18 and 19 of one of pipe sections 17. Provision is made for annular sealing elements between each end 18 and 19 and respective seat 29.
  • the device also comprises a tube 30 inserted coaxially inside pipe sections 17 and fittings 7 to form a second continuous fuel pipe 32; and a pressure regulator 33 having a substantially cylindrical casing and housed in seat 29 of fitting 7 on the coupling 1 to the extreme right of the device in Fig.1.
  • Pressure regulator 33 presents an inlet hole 34 communicating with pipe 20, and an outlet hole 35 communicating with pipe 32 in turn connected to the drain.
  • a fitting (not shown) formed on fitting 7 of coupling 1
  • continuous fuel supply pipe 20 is connected to a pressurized fuel source, e.g. the fuel supply pump.
  • Drive means 21 for transmitting rotation between shafts 9 (Fig.s 2 and 3) of adjacent couplings 1 comprise at least a lever 36 (Fig.s 3 and 5) integral with shaft 9 of coupling 1 and having at least a tab 37a or 37b.
  • Levers 36 of adjacent couplings 1 are arranged facing each other, as shown in Fig.2, and tab 37a (Fig.3) of one lever 36 rests on tab 37b of the other, so as to transmit rotation of the second lever to the first.
  • Tab 37b of one of levers 36 conveniently presents an adjustable pin 39b (Fig.3) cooperating with tab 37a of the other lever 36.
  • Each lever 36 also presents a second tab 38 cooperating with an adjustable pin 39a.
  • the device also comprises a rotary shaft 40 (Fig.s 2 and 3) supported on two arms 41 of supporting plate 13; and a crank 42 (Fig.s 3 and 4) integral with shaft 40.
  • Shaft 40 is fitted with a lever 43 having a tab 44, and presents an idle lever 45 having two adjustable pins 46 located on opposite sides in relation to tab 44, as shown in Fig.3.
  • Lever 45 is connected by a rod 47 to one of levers 36 of coupling 1, as shown in Fig. 3.
  • Rod 47 is conveniently adjustable in length, and presents one end hinged to lever 45 and the other to lever 36.
  • Crank 42 is connected by a drive of any appropriate type to the accelerator pedal of the vehicle.
  • shaft 9 is conveniently fitted to respective coupling 1 via the interposition of roller bearings 48, and at least one helical spring 49 is provided for normally maintaining throttle 10 in the closed position.
  • Spring 49 presents one end secured to coupling 1 and the other to lever 36 integral with shaft 9.
  • each end 18 and 19 of each section 17 is inserted inside respective seat 29 on annular projection 28 to form continuous pipe 20.
  • Tube 30 is then inserted inside pipe 20 and secured to the other elements by fitting a cylindrical enlargement 51 (Fig.1) on tube 30 inside seat 29.
  • Pressure regulator 33 is then fitted to annular projection 28 at one end of the device, by inserting it inside the seat on projection 28 and at the same time inserting cylindrical projection 50 inside the end of tube 30.
  • the assembly so formed is then secured to supporting plate 13 by inserting threaded rods 25 (Fig.6) inside the respective holes in plate 13 and screwing nuts 26 on to rods 25 to lock couplings 1 firmly to plate 13. If nozzles 27 are provided, these are secured using the same rods 25, as shown in Fig.6.
  • Levers 36 of each coupling 1 are then connected mechanically to shaft 40 using the members already described and as shown in Fig.s 3 and 4.
  • tab 37a of one of couplings 1 is located substantially opposite tab 37b of the adjacent coupling 1, and adjustable pin 39b of tab 37b is rested on the other tab as shown in Fig.3.
  • metering and atomizing valves 6 are fitted inside respective seats 5, as shown in Fig.3.
  • the device according to the present invention therefore provides for forming a number of configurations for supplying any type of engine, by simply providing for a number of supporting plates 13 enabling the number and center distance of couplings 1 to be selected as required.
  • couplings 1 may be spaced as required and connected using pipe sections 17 of different lengths.
  • the device according to the present invention operates in the same way as known devices of the same type.
  • throttles 10 When idle, throttles 10 are maintained in the closed position by respective springs 49.
  • tab 38 of levers 36 (Fig.s 3 and 5) rests on adjustable pin 39b screwed inside a hole formed in a projection on the respective coupling.
  • crank 42 When the accelerator is pressed, crank 42 is rotated which in turn rotates shaft 40 and integral levers 43, each of which acts on pin 46 to rotate lever 45 which in turn rotates levers 36 via rod 47 to open respective throttle 10.
  • Fuel is supplied to each metering and atomizing valve 6 by continuous pipe 20.
  • a certain amount is drained off by return pipe 32 so as to circulate the fuel through inlet 34 and out through outlet 35 of pressure regulator 33.
  • the supply device according to the present invention is also extremely straightforward in design and highly reliable due to the design of the various component parts.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fuel-Injection Apparatus (AREA)
EP91107042A 1990-05-03 1991-04-30 Modular supply device for an internal combustion engine Withdrawn EP0455234A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6732890 1990-05-03
IT67328A IT1240373B (it) 1990-05-03 1990-05-03 Dispositivo per l'alimentazione di un motore a combustione interna atto a realizzare una varieta' di configurazioni

Publications (1)

Publication Number Publication Date
EP0455234A1 true EP0455234A1 (en) 1991-11-06

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ID=11301489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91107042A Withdrawn EP0455234A1 (en) 1990-05-03 1991-04-30 Modular supply device for an internal combustion engine

Country Status (2)

Country Link
EP (1) EP0455234A1 (it)
IT (1) IT1240373B (it)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001160A2 (en) * 1998-11-16 2000-05-17 Sanshin Kogyo Kabushiki Kaisha Internal combustion engine
WO2002045979A2 (en) * 2000-12-07 2002-06-13 Visteon Global Technologies, Inc. Method of supplying suspension struts
EP1541835A1 (en) * 2003-11-14 2005-06-15 Magneti Marelli Powertrain S.p.A. Air supply unit for an internal combustion engine
WO2008016981A2 (en) 2006-08-01 2008-02-07 Pc/Rc Products L.L.C. Small engine operation components
JP2015172365A (ja) * 2014-03-12 2015-10-01 株式会社ケーヒン エンジンの吸気量制御装置
DE102004002641B4 (de) * 2004-01-19 2017-01-26 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Modulare Ansaugvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791205A (en) * 1953-08-10 1957-05-07 Chrysler Corp Intake manifold and fuel feeding system for high output engines
FR2574475A1 (fr) * 1984-12-11 1986-06-13 Peugeot Dispositif de fixation et de raccordement etanche d'une tubulure sur une culasse de moteur a combustion
US4913119A (en) * 1988-08-03 1990-04-03 Usui Kokusai Sangyo Kaisha Ltd. Fuel delivery rail assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791205A (en) * 1953-08-10 1957-05-07 Chrysler Corp Intake manifold and fuel feeding system for high output engines
FR2574475A1 (fr) * 1984-12-11 1986-06-13 Peugeot Dispositif de fixation et de raccordement etanche d'une tubulure sur une culasse de moteur a combustion
US4913119A (en) * 1988-08-03 1990-04-03 Usui Kokusai Sangyo Kaisha Ltd. Fuel delivery rail assembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MOTO REVUE, no. 2571, 9th September 1982, Paris, FR *
MOTORTECHNISCHE ZEITSCHRIFT, vol. 51, no. 4, April 1990, pages 142-146, Stuttgart, DE; M. MICIK et al.: "Der Hochleistungsmotor für BMW M 5" *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001160A2 (en) * 1998-11-16 2000-05-17 Sanshin Kogyo Kabushiki Kaisha Internal combustion engine
EP1001160A3 (en) * 1998-11-16 2000-08-23 Sanshin Kogyo Kabushiki Kaisha Internal combustion engine
WO2002045979A2 (en) * 2000-12-07 2002-06-13 Visteon Global Technologies, Inc. Method of supplying suspension struts
WO2002045979A3 (en) * 2000-12-07 2003-06-05 Visteon Global Tech Inc Method of supplying suspension struts
EP1541835A1 (en) * 2003-11-14 2005-06-15 Magneti Marelli Powertrain S.p.A. Air supply unit for an internal combustion engine
US7069920B2 (en) 2003-11-14 2006-07-04 Magneti Marelli Powertrain S.P.A. Air supply unit for an internal combustion engine
DE102004002641B4 (de) * 2004-01-19 2017-01-26 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Modulare Ansaugvorrichtung
WO2008016981A2 (en) 2006-08-01 2008-02-07 Pc/Rc Products L.L.C. Small engine operation components
EP2047080A2 (en) * 2006-08-01 2009-04-15 PC/RC Products L.L.C. Small engine operation components
EP2047080A4 (en) * 2006-08-01 2011-05-25 Pc Rc Products L L C OPERATING ELEMENTS OF SMALL ENGINE
JP2015172365A (ja) * 2014-03-12 2015-10-01 株式会社ケーヒン エンジンの吸気量制御装置

Also Published As

Publication number Publication date
IT9067328A1 (it) 1991-11-03
IT9067328A0 (it) 1990-05-03
IT1240373B (it) 1993-12-10

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