US3782639A - Fuel injection apparatus - Google Patents

Fuel injection apparatus Download PDF

Info

Publication number
US3782639A
US3782639A US3782639DA US3782639A US 3782639 A US3782639 A US 3782639A US 3782639D A US3782639D A US 3782639DA US 3782639 A US3782639 A US 3782639A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
air
chamber
fuel
assist nozzle
nozzle
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
Inventor
R Boltz
W Ojala
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/08Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by the fuel being carried by compressed air into main stream of combustion-air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0675Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14Arrangements of injectors with respect to engines; Mounting of injectors
    • F02M61/145Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04Injectors peculiar thereto
    • F02M69/042Positioning of injectors with respect to engine, e.g. in the air intake conduit
    • F02M69/044Positioning 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00Gas and liquid contact apparatus
    • Y10S261/82Upper end injectors

Abstract

Apparatus for the injection of fuel into the intake manifold of an internal combustion engine is described. The apparatus includes an air-assist nozzle that has a chamber formed in it that includes an orifice for the discharge of air-atomized fuel. A fuel injector has a fuel discharge port positioned within the chamber of the air-assist nozzle. The air-assist nozzle has an air inlet to the chamber, and air which enters the chamber through the inlet mixes with the fuel discharged from the fuel injector producing an air-fuel atomized mixture which is discharged from the orifice of the air-assist nozzle.

Description

United States Patent 1191 Boltz et al. Jan. 1, 1974 [54] FUEL INJECTION APPARATUS 1,898,763 2/1933 Cowardin et: al. 239/403 x [75] Inventors: Ronald R. Boltz, Oak Park; William J a Dearbom Heights, both of 2,893,365 7/1959 Haefner 123/139 AW Mich.

[73] Assignee: Ford Motor Company, Dearborn, Primary Examiner-M Henson Wood, 113

Mich Assistant Examiner-John J. Love Attorney-Keith L. Zerschling et al. [22] Filed: Apr. 17, 1972 [21] Appl. No.: 244,441 [57] ABSTRACT Apparatus for the injection of fuel into the intake 52] us. c1 239/405, 239/4345, 239/470, manifold of an internal Combustion F 2 is 239/533, 239/585, 123/139 AW scribed. The apparatus includes: an alr-assist nozzle 51 rm. (:1 BOSb 1/34 that has a chamber formed in it that includes an 58 Field of Search 239/403, 405, 468, fice for the discharge of air'atomiled fuel- A fuel 239/469, 470, 585, 533, 399, 401, 434.5; jector has a fuel discharge port positioned within the 123/139 w chamber of the air-assist nozzle. The air-assist nozzle has an air inlet to the chamber, and air which enters [56] References Cited the chamber through the inlet mixes with the fuel dis- UNITED STATES PATENTS charged from the fuel injector producing an air-fuel atomized mixture which is discharged from the orifice 1,495,731 5/1924 Gerdes et al 239/405 of the air assist nozzle 2,755,134 7/1956 Eck et a] 239/403 X 1,457,849 6/1923 Morse 239/405 1 Claim, 3 Drawing Figures FUEL INJECTION APPARATUS BACKGROUND OF THE INVENTION This invention relates to apparatus for injecting fuel into the intake manifold of an internal combustion engine and, more particularly, to fuel injection apparatus including an air-assist nozzle having a swirl chamber within it which, in combination with a fuel injector that may be of conventional design, produces a highly atomized mixture of air and fuel that is discharged into the intake manifold of an internal combustion engine. The invention is applicable to both electronic and mechanical fuel injection systems for internal combustion engines.

Fuel injection systems for internal combustion engines have undergone much development over the years. Fuel injection systems for such engines fall into two broad classes, that is, those in which fuel is injected directly into the engines combustion chambers and those in which fuel is injected into an intake passage preceding the combustion chambers. The teachings of the present invention are particularly applicable to fuel injected engines in the latter classification, but are believed to be applicable to the former class of fuel injected engines also.

One of the greatest problems encountered in the application of fuel injection systems to internal combus tion engines is in finding means for achieving adequate atomization of the fuel injected into the engine. If the fuel is inadequately atomized in the combustion air, incomplete combustion may result and it may be necessary to supply a greater quantity of fuel to the engine than would otherwise be required were the atomization of the air and fuel adequate. Where the amount of fuel injected into an engine exceeds the amount which can be consumed in the engine combustion process, the engine necessarily must discharge the excess fuel to the atmosphere as a part of its exhaust emission. Also, inadequate atomization of the fuel can have a detrimental effect on the performance of an engine, particularly when the engine is cold and fuel injected into it is likely to impinge on engine parts and condense.

SUMMARY OF THE INVENTION The fuel injection apparatus of the invention comprises an air-assist nozzle having a chamber within it. The chamber has an air inlet passage in communication with the chamber. The chamber in the air-assist nozzle has a cylindrically shaped first portion and a coaxial frusto-conically shaped second portion. The air inlet passage to the chamber approaches the cylindrically shaped portion thereof from a substantially tangential direction. The air-assist nozzle also has an orifice for the discharge of air-atomized fuel. The orifice communicates with the chamber at the smaller diameter end of the frusto-conically shaped second chamber portion. Means, such as a commercially available fuel injector, is used with the air-assist nozzle for the discharge of fuel into its chamber. The fuel discharge means includes a fuel discharge nozzle that is positioned within the chamber of the air-assist nozzle. Preferably, this fuel discharge nozzle has a discharge port positioned on the axis of the air-assist nozzle chamber and the discharge port is axially spaced from the orifice in the airassist nozzle.

Preferably, the fuel injection apparatus of the invention is-used to inject fuel into an air intake passage preceding the combustion chamber of a reciprocating or rotating internal combustion engine. In such engines, a throttle valve is used to control the air entering the air intake passage. In an engineof this type, the air pressure in the air intake passage is less than atmospheric pressure during engine operation, but fluctuates from a very low absolute pressure to almost atmospheric pressure depending on engine speed, throttle angle position, exhaust system back pressure and the like. The air-assist nozzle described above, when used in conjunction with means for discharging fuel intoits chamber, effectively isolates the fuel discharge means from the fluctuations in air intake passage pressure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of fuel injection apparatus constructed in accordance with the invention and positioned in a portion of an intake manifold of an internal combustion engine;

FIG. 2 is an enlarged sectional view ofthe fuel injection apparatus of FIG. 1, the location at which the sectional view of FIG. 2 is taken being indicated by the line 2-2 in FIG. 3; and

FIG. 3 is an enlarged sectional view of the fuel injection apparatus, the section being taken along the line 3-3 indicated in FIG. 2.

DETAILED DESCRIPTION With reference now to the drawings, wherein like numerals refer to like parts in the several views, there is shown fuel injection apparatus constructed in accordance with the invention.

FIG. 1 is a sectional view ofa portion of the cylinder head and air intake manifold of a reciprocating internal combustion engine which utilizes fuel injection in its operation. The cylinder head 10 is of conventional construction and includes an intake poppet valve 12 which, when opened, permits a mixture of air and fuel to be drawn through the intakeport 1-4 into a combustion chamber (not shown) below the cylinder head 10. Combustion air is supplied to the cylinder head 10 through an air passage 16 in an air intake manifold 18 that is attached to the cylinder head 10.

Fuel injection apparatus, generally designated by the numeral 20, is mounted in an opening 22 in the intake manifold 18 and is positioned therein such that a mixture of atomized air and fuel 24, when discharged from the fuel injection apparatus 20 is directed toward the intake valve 12 and intake port 14. The fuel injection apparatus 20 comprises an air-asist nozzle 26 having a chamber 28 within it, and means for discharging fuel into the chamber 28 in the form of an electromagnetic fuel injector 30. An air inlet 29 communicates with the chamber 28 of the air-assist nozzle. The air-assist nozzle 26 and fuel injector 30 are held in position in the intake manifold 18 with a plate 32, which is fitted into a groove 34 in the fuel injector, and bolts 36 and 38 threaded into the intake manifold.

FIGS. 2 and 3 are enlarged sectional views of the fuel injection apparatus 20. It may be seen that the air-assist nozzle 26 is comprised of a nozzle body 40, a nozzle orifice insert 42, and an annular thermal insulator 44, which may be made from a material such as micarta. The nozzle body 40 has a cylindrically shaped opening 46 which is threaded at one end to receive the nozzle orifice insert 42. The orifice insert 42 has a frustoconically shaped portion 48 which, when positioned in the nozzle body 40 as shown in FIG. 2, is coaxial with the cylindrical opening 46 in the nozzle body and which, with the nozzle body, forms the chamber 28. Thus, the chamber 28 has a cylindrical-shaped first portion and a coaxial frusto-conically shaped second portion. An orifice 50 in the nozzle orifice insert 42 communicates with the chamber 28 at the smaller diameter end of the frusto-conically shaped second chamber portion. The air-assist nozzle 26 may be formed from a single piece, if desired. Also specific dimensions of the air-assist nozzle 26 are important and are affected by the design'of the fuel injector 30.

The air inlet 29 preferably communicates with the cylindrically shaped-first portion of the chamber 28 and approaches this cylindrically shaped. portion of the chamber from a direction that is tangential with respect to the cylindrical opening 46,- as may best be seen in FIG. 3.

Where the internal combustion engine is controlled by means. of an airthrottle.(n ot shown) positioned in the intake manifold 18, the air pressure within the flow passage 16 of the manifold fluctuates from very low absolute pressuresat engine idling conditions to absolute pressures'near atmospheric pressure during wide open throttle operation of the engine. Intake manifold pressure also fluctuates with time (crank engine angle) at a fixed average manifold pressure. In the absence of the air-assist nozzle this creates a varying differential pressure acrossthe discharge nozzle of the fuel injector 30. It is an object of the invention to isolate the fuel injector 30 from the intake manifold pressure fluctuations. For this reason, the air inlet 29 to the chamber 28 of the air-assist nozzle preferably is connected to a source of air which is at or near atmospheric pressure. The effect of this on the operation of the fuel injection apparatus 20 is described hereinafter.

The fuel injector 30 is of a design presently in commercial use. It comprises an injector body 52 that is positioned in the annular insulator 44 of the air-assist nozzle 26, which thermally isolates it from the air-assist nozzle. An air space 54 between the insulator 44 and the nozzle body 40 aids in this thermal isolation.

The injector body 52 has a fuel discharge nozzle 56 positioned within it. The nozzle 56 has a fuel discharge port 58, which includes a valve seat 60, that is positioned within the cylindrically shaped first portion of the chamber 28 and preferably is located as shown on the common axis 62 of the cylindrically shaped and frusto-conically shaped portions'of the chamber 28.

Also, it is preferable that the discharge port 58 of the fuel nozzle 56 be axially spaced from the orifice 50 and that it be positioned intermediate the air inlet 29 and the orifice 50, as may best be seen in FIG. 2.

The fuel injector 30 is electromagnetically operated by a coil 64 which, when energized, moves an armature 66 against the force of a spring 68. Fuel enters the injector 30 through an inlet 70 and travels through a passage 72 and is then deposited in a chamber 74 in the fuel nozzle 56.

' As the air is drawn toward the orifice 50 in the nozzle insert 42', its angular velocity increases because of the frusto-conically shaped portion of the chamber 28. This swirling air mixes with the fuel discharged in the chamber 28 from the fuel discharge port 58 and results in a finely atomized mixture of air and fuelbeing discharged through the orifice 50 into the intake manifold passage 16.

It should be noted that the discharge port 58 of the fuel injector 30 is isolated from the fluctuating subatmospheric pressure in the intake passage 16 by the atmospheric air which enters the swirl chamber 28 of the air-assist nozzle and that a variable pressure drop will occur across the orifice 50 of the nozzle insert. In practice, very excellent air and fuel atomization has been obtained with an air-assist nozzle in which the orifice 50 has a length to diameter ratio of 1.0 and in which the frusto-conically shaped portion of the chamber 28 forms angle of 45 with respect to the axis 62. 1

Based upon the foregoing description of the invention, what is claimed and desired tobe protected by Letters Patent is:

L'Apparatus for the injection of fuel into the intake manifold of an internal combustion engine, said apparatus comprising: an air-assist nozzle positioned in said engine intake manifold, said air-assist nozzle having a chamber formed in it, said chamber having a cylindrically shaped first portion and a coaxial frusto-conically tion from a tangential direction; and means for dis- I charging fuel into said air-assist nozzle chamber, said fuel discharge means having a discharge port located within said chamber, said discharge port being positioned on the axis of said chamber in said air-assist nozzle and being located within said cylindrically shaped first portion of said air-assist nozzle chamber, said discharge port being axially spaced from said air-assist nozzle orifice and being positioned intermediate said air-assist nozzle air inlet passage and said air-assist nozzle discharge orifice.

Claims (1)

1. Apparatus for the injection of fuel into the intake manifold of an internal combustion engine, said apparatus comprising: an air-assist nozzle positioned in said engine intake manifold, said air-assist nozzle having a chamber formed in it, said chamber having a cylindrically shaped first portion and a coaxial frustoconically shaped second portion, said air-assist nozzle having an orifice for the discharge of air-atomized fuel from said chamber into said engine intake manifold, said orifice communicating with said chamber at the smaller diameter end of said frusto-conically shaped second chamber portion, said air-assist nozzle having an air inlet passage in communication with said cylindrically shaped first chamber portion, said air inlet passage approaching said cylindrically shaped first chamber portion from a tangential direction; and means for discharging fuel into said air-assist nozzle chamber, said fuel discharge means having a discharge port located within said chamber, said discharge port being positioned on the axis of said chamber in said air-assist nozzle and being located within said cylindrically shaped first portion of said air-assist nozzle chamber, said discharge port being axially spaced from said air-assist nozzle orifice and being positioned intermediate said air-assist nozzle air inlet passage and said air-assist nozzle discharge orifice.
US3782639A 1972-04-17 1972-04-17 Fuel injection apparatus Expired - Lifetime US3782639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US24444172 true 1972-04-17 1972-04-17

Publications (1)

Publication Number Publication Date
US3782639A true US3782639A (en) 1974-01-01

Family

ID=22922784

Family Applications (1)

Application Number Title Priority Date Filing Date
US3782639A Expired - Lifetime US3782639A (en) 1972-04-17 1972-04-17 Fuel injection apparatus

Country Status (5)

Country Link
US (1) US3782639A (en)
JP (1) JPS544444B2 (en)
CA (1) CA973765A (en)
DE (1) DE2319034A1 (en)
GB (1) GB1411037A (en)

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941109A (en) * 1972-08-31 1976-03-02 Dr. -Ing. H.C.F. Porsche Aktiengesellschaft Arrangement for mounting a fuel injection nozzle
US3943904A (en) * 1974-07-19 1976-03-16 General Motors Corporation Single injector throttle body
US4006719A (en) * 1974-02-19 1977-02-08 Diesel Kiki Co., Ltd. Vortex action fuel injection valve for internal combustion engine
US4030668A (en) * 1976-06-17 1977-06-21 The Bendix Corporation Electromagnetically operated fuel injection valve
US4057190A (en) * 1976-06-17 1977-11-08 Bendix Corporation Fuel break-up disc for injection valve
US4132203A (en) * 1977-03-17 1979-01-02 The Bendix Corporation Single point intermittent flow fuel injection
US4204507A (en) * 1977-03-17 1980-05-27 The Bendix Corporation Fuel electric fuel injection valve
US4206599A (en) * 1977-09-07 1980-06-10 Toyota Jidosha Kogyo Kabushiki Kaisha Internal combustion engine
US4216753A (en) * 1977-12-14 1980-08-12 Yoyota Jidosha Kogyo Kabushiki Kaisha Fuel air mixture supply system for use in fuel-injection-type internal combustion engine
US4272460A (en) * 1979-03-07 1981-06-09 Toyota Jidosha Kogyo Kabushiki Kaisha Variable venturi type carburetor
US4288037A (en) * 1979-01-11 1981-09-08 Robert Bosch Gmbh Fuel injection valve
US4325341A (en) * 1978-11-06 1982-04-20 Hitachi, Ltd. Fuel control device for fuel injection system for internal combustion engine
EP0057407A2 (en) * 1981-01-30 1982-08-11 Hitachi, Ltd. Magnetic fuel injection valve
US4347822A (en) * 1977-03-17 1982-09-07 The Bendix Corporation Single point fuel injection with venturi atomization
US4361126A (en) * 1979-09-08 1982-11-30 Robert Bosch Gmbh Fuel injection valve
US4372271A (en) * 1977-03-17 1983-02-08 The Bendix Corporation Single point intermittent flow fuel injection
US4519370A (en) * 1983-02-23 1985-05-28 Toyota Jidosha Kabushiki Kaisha Fuel injector electronically controlled engine
US4536356A (en) * 1983-12-13 1985-08-20 Li Ching C Carburetor
FR2569241A1 (en) * 1984-03-05 1986-02-21 Mesenich Gerhard Solenoid injection valve comprising a device for atomising the fuel by means of a current of air
EP0200063A1 (en) * 1985-04-30 1986-11-05 Bowles Fluidics Corporation Fuel injection system
US4666088A (en) * 1984-03-28 1987-05-19 Robert Bosch Gmbh Fuel injection valve
US4828181A (en) * 1986-11-27 1989-05-09 Fluidics Instruments B.V. Air-pressure-atomizer
US4836453A (en) * 1988-02-22 1989-06-06 Outboard Marine Corporation Fuel injector with continuous air flow
US4934329A (en) * 1987-04-03 1990-06-19 Orbital Engine Company Proprietary Limited Fuel injection system for a multi-cylinder engine
EP0377784A1 (en) * 1989-01-12 1990-07-18 Toyota Jidosha Kabushiki Kaisha A fuel supply device of an engine
US5035358A (en) * 1989-03-22 1991-07-30 Toyota Jidosha Kabushiki Kaisha Fuel injector for use in an engine
US5117794A (en) * 1985-04-30 1992-06-02 Bowles Fluidics Corporation Fuel injection system
US5172865A (en) * 1989-01-12 1992-12-22 Toyota Jidosha Kabushiki Kaisha Fuel supply device of an engine
US5197674A (en) * 1990-02-23 1993-03-30 Robert Bosch Gmbh Apparatus for injecting a fuel-gas mixture into an internal combustion engine
US5205264A (en) * 1990-11-16 1993-04-27 Hoffman Sr Larry L Fuel vaporizer and system for an internal combustion engine
US5294056A (en) * 1991-09-12 1994-03-15 Robert Bosch Gmbh Fuel-gas mixture injector with a downstream mixing conduit
EP0586913A2 (en) * 1992-09-08 1994-03-16 MAN Nutzfahrzeuge Aktiengesellschaft Spray apparatus
US5358181A (en) * 1991-06-11 1994-10-25 Nippondenso Co. Ltd. Fuel feed apparatus of internal combustion engine and manufacturing method therefor
US5449120A (en) * 1991-06-11 1995-09-12 Nippondenso Co., Ltd. Fuel feed apparatus of internal combustion engine
US5533480A (en) * 1995-06-07 1996-07-09 Mtn International, Llc Low force actuatable fuel injector
US6010077A (en) * 1995-06-09 2000-01-04 Casey; Alan Patrick Nozzle for delivering liquid/gas mixture
US6098595A (en) * 1998-08-17 2000-08-08 Cummins Engine Company, Inc. Intake port injection system with shared injectors
US6328222B1 (en) 2000-04-25 2001-12-11 Siemens Automotive Corporation Pulsed air assist valve module
WO2003023219A1 (en) * 2001-09-13 2003-03-20 Synerject, Llc Air assist fuel injector guide assembly
US20050092306A1 (en) * 2003-11-03 2005-05-05 Shinogle Ronald D. Injection of fuel vapor and air mixture into an engine cylinder
US20090078795A1 (en) * 2007-09-20 2009-03-26 Netafim Ltd. Liquid Atomizer for Agricultural Applications
WO2009130504A1 (en) * 2008-04-21 2009-10-29 Ip Consortium Limited Throttle assembly

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324586Y2 (en) * 1974-04-05 1978-06-23
JPS5845597B2 (en) * 1977-05-04 1983-10-11 Toyota Jidosha Kk
JPS5514970A (en) * 1978-07-19 1980-02-01 Yamaha Motor Co Ltd Absorbing gas tube of fuel injecting type engine
JPS5528792U (en) * 1978-08-17 1980-02-25
JPS5581263A (en) * 1978-12-13 1980-06-19 Nissan Motor Co Ltd Fuel supply device
JPS55125969U (en) * 1979-02-27 1980-09-06
JPS6122159Y2 (en) * 1980-06-05 1986-07-02
JPS575546A (en) * 1980-06-12 1982-01-12 Komatsu Ltd Fuel injector
JPS5974365A (en) * 1982-10-21 1984-04-26 Aisan Ind Co Ltd Fuel feed device for internal-combustion engine
JPS59123661U (en) * 1983-02-10 1984-08-20
FR2553834B1 (en) * 1983-10-20 1988-02-26 Sibe injection valve for internal combustion engine
DE3408012A1 (en) * 1984-03-05 1985-09-05 Mesenich Gerhard The electromagnetic injection valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1457849A (en) * 1920-09-23 1923-06-05 Albert W Morse Burner
US1495731A (en) * 1923-07-31 1924-05-27 Hauck Mfg Co Oil burner
US1898763A (en) * 1929-09-28 1933-02-21 Samuel P Cowardin Atomizer
US2072281A (en) * 1935-10-17 1937-03-02 Des Procedes Simonin Soc Et Mixing and atomizing apparatus for hydrocarbons and other fluid materials
US2755134A (en) * 1955-06-28 1956-07-17 Allied Chem & Dye Corp Atomizing spray for oil gas production
US2893365A (en) * 1956-05-31 1959-07-07 Gen Motors Corp Fuel injection means
US3693886A (en) * 1971-10-27 1972-09-26 Delavan Manufacturing Co Swirl air nozzle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1457849A (en) * 1920-09-23 1923-06-05 Albert W Morse Burner
US1495731A (en) * 1923-07-31 1924-05-27 Hauck Mfg Co Oil burner
US1898763A (en) * 1929-09-28 1933-02-21 Samuel P Cowardin Atomizer
US2072281A (en) * 1935-10-17 1937-03-02 Des Procedes Simonin Soc Et Mixing and atomizing apparatus for hydrocarbons and other fluid materials
US2755134A (en) * 1955-06-28 1956-07-17 Allied Chem & Dye Corp Atomizing spray for oil gas production
US2893365A (en) * 1956-05-31 1959-07-07 Gen Motors Corp Fuel injection means
US3693886A (en) * 1971-10-27 1972-09-26 Delavan Manufacturing Co Swirl air nozzle

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941109A (en) * 1972-08-31 1976-03-02 Dr. -Ing. H.C.F. Porsche Aktiengesellschaft Arrangement for mounting a fuel injection nozzle
US4006719A (en) * 1974-02-19 1977-02-08 Diesel Kiki Co., Ltd. Vortex action fuel injection valve for internal combustion engine
US3943904A (en) * 1974-07-19 1976-03-16 General Motors Corporation Single injector throttle body
US4030668A (en) * 1976-06-17 1977-06-21 The Bendix Corporation Electromagnetically operated fuel injection valve
US4057190A (en) * 1976-06-17 1977-11-08 Bendix Corporation Fuel break-up disc for injection valve
US4132203A (en) * 1977-03-17 1979-01-02 The Bendix Corporation Single point intermittent flow fuel injection
US4204507A (en) * 1977-03-17 1980-05-27 The Bendix Corporation Fuel electric fuel injection valve
US4372271A (en) * 1977-03-17 1983-02-08 The Bendix Corporation Single point intermittent flow fuel injection
US4347822A (en) * 1977-03-17 1982-09-07 The Bendix Corporation Single point fuel injection with venturi atomization
US4206599A (en) * 1977-09-07 1980-06-10 Toyota Jidosha Kogyo Kabushiki Kaisha Internal combustion engine
US4216753A (en) * 1977-12-14 1980-08-12 Yoyota Jidosha Kogyo Kabushiki Kaisha Fuel air mixture supply system for use in fuel-injection-type internal combustion engine
US4325341A (en) * 1978-11-06 1982-04-20 Hitachi, Ltd. Fuel control device for fuel injection system for internal combustion engine
US4288037A (en) * 1979-01-11 1981-09-08 Robert Bosch Gmbh Fuel injection valve
US4272460A (en) * 1979-03-07 1981-06-09 Toyota Jidosha Kogyo Kabushiki Kaisha Variable venturi type carburetor
US4361126A (en) * 1979-09-08 1982-11-30 Robert Bosch Gmbh Fuel injection valve
EP0057407B1 (en) * 1981-01-30 1987-05-20 Hitachi, Ltd. Magnetic fuel injection valve
EP0057407A2 (en) * 1981-01-30 1982-08-11 Hitachi, Ltd. Magnetic fuel injection valve
US4519370A (en) * 1983-02-23 1985-05-28 Toyota Jidosha Kabushiki Kaisha Fuel injector electronically controlled engine
US4536356A (en) * 1983-12-13 1985-08-20 Li Ching C Carburetor
FR2569241A1 (en) * 1984-03-05 1986-02-21 Mesenich Gerhard Solenoid injection valve comprising a device for atomising the fuel by means of a current of air
US4666088A (en) * 1984-03-28 1987-05-19 Robert Bosch Gmbh Fuel injection valve
EP0200063A1 (en) * 1985-04-30 1986-11-05 Bowles Fluidics Corporation Fuel injection system
US5117794A (en) * 1985-04-30 1992-06-02 Bowles Fluidics Corporation Fuel injection system
US4828181A (en) * 1986-11-27 1989-05-09 Fluidics Instruments B.V. Air-pressure-atomizer
USRE36768E (en) * 1987-04-03 2000-07-11 Orbital Engine Company (Australia) Pty. Ltd. Fuel injection system for a multi-cylinder engine
US4934329A (en) * 1987-04-03 1990-06-19 Orbital Engine Company Proprietary Limited Fuel injection system for a multi-cylinder engine
US4836453A (en) * 1988-02-22 1989-06-06 Outboard Marine Corporation Fuel injector with continuous air flow
EP0377784A1 (en) * 1989-01-12 1990-07-18 Toyota Jidosha Kabushiki Kaisha A fuel supply device of an engine
US5172865A (en) * 1989-01-12 1992-12-22 Toyota Jidosha Kabushiki Kaisha Fuel supply device of an engine
US5035358A (en) * 1989-03-22 1991-07-30 Toyota Jidosha Kabushiki Kaisha Fuel injector for use in an engine
US5197674A (en) * 1990-02-23 1993-03-30 Robert Bosch Gmbh Apparatus for injecting a fuel-gas mixture into an internal combustion engine
US5205264A (en) * 1990-11-16 1993-04-27 Hoffman Sr Larry L Fuel vaporizer and system for an internal combustion engine
US5358181A (en) * 1991-06-11 1994-10-25 Nippondenso Co. Ltd. Fuel feed apparatus of internal combustion engine and manufacturing method therefor
US5449120A (en) * 1991-06-11 1995-09-12 Nippondenso Co., Ltd. Fuel feed apparatus of internal combustion engine
US5294056A (en) * 1991-09-12 1994-03-15 Robert Bosch Gmbh Fuel-gas mixture injector with a downstream mixing conduit
EP0586913A3 (en) * 1992-09-08 1994-11-30 Man Nutzfahrzeuge Ag Spray apparatus.
EP0586913A2 (en) * 1992-09-08 1994-03-16 MAN Nutzfahrzeuge Aktiengesellschaft Spray apparatus
US5533480A (en) * 1995-06-07 1996-07-09 Mtn International, Llc Low force actuatable fuel injector
US6010077A (en) * 1995-06-09 2000-01-04 Casey; Alan Patrick Nozzle for delivering liquid/gas mixture
US6098595A (en) * 1998-08-17 2000-08-08 Cummins Engine Company, Inc. Intake port injection system with shared injectors
US6328222B1 (en) 2000-04-25 2001-12-11 Siemens Automotive Corporation Pulsed air assist valve module
US7104477B2 (en) 2001-09-13 2006-09-12 Synerject, Llc Air assist fuel injector guide assembly
EP1425507A1 (en) * 2001-09-13 2004-06-09 Synerject, Llc Air assist fuel injector guide assembly
EP1425507A4 (en) * 2001-09-13 2004-10-06 Synerject Llc Air assist fuel injector guide assembly
WO2003023219A1 (en) * 2001-09-13 2003-03-20 Synerject, Llc Air assist fuel injector guide assembly
US20050092306A1 (en) * 2003-11-03 2005-05-05 Shinogle Ronald D. Injection of fuel vapor and air mixture into an engine cylinder
US6959699B2 (en) 2003-11-03 2005-11-01 Caterpillar Inc Injection of fuel vapor and air mixture into an engine cylinder
US8313045B2 (en) * 2007-09-20 2012-11-20 Netafim, Ltd. Liquid atomizer for agricultural applications
US20090078795A1 (en) * 2007-09-20 2009-03-26 Netafim Ltd. Liquid Atomizer for Agricultural Applications
WO2009130504A1 (en) * 2008-04-21 2009-10-29 Ip Consortium Limited Throttle assembly
GB2471821A (en) * 2008-04-21 2011-01-12 Ip Consortium Ltd Throttle assembly
US20110036326A1 (en) * 2008-04-21 2011-02-17 Ip Consortium Limited Throttle assembly

Also Published As

Publication number Publication date Type
CA973765A1 (en) grant
JPS544444B2 (en) 1979-03-07 grant
DE2319034A1 (en) 1973-11-08 application
JPS4915818A (en) 1974-02-12 application
CA973765A (en) 1975-09-02 grant
GB1411037A (en) 1975-10-22 application

Similar Documents

Publication Publication Date Title
US5002231A (en) Injection valve
US5884611A (en) Effervescent injector for diesel engines
US4475486A (en) Engine induction system
US6315217B1 (en) Fuel atomizing-injection apparatus
US4945877A (en) Fuel injection valve
US5027778A (en) Fuel injection control apparatus
US3868936A (en) Fuel injection systems
US4159703A (en) Air assisted fuel atomizer
US3980056A (en) Fuel injection device
US6065691A (en) Fuel injection piston engines
US3931814A (en) Cylinder-induction responsive electronic fuel feed control carburetors
US4753213A (en) Injection of fuel to an engine
US3995609A (en) Internal combustion engine fuel control arrangement
US5232167A (en) Electromagnetically actuatable injection valve
US3866585A (en) High energy fuel atomization and a dual carburetion embodying same
US5360166A (en) Fuel injection valve
US4773374A (en) Fuel injection system for internal combustion engine
US3154058A (en) Internal combustion engine operating on stratified combustion principle with explosive fuel injection
US3706444A (en) Carburettor for motor vehicle
US3132633A (en) Piston assembly
US5694906A (en) Fuel injection system for a combustion engine
US4378001A (en) Fuel injection type carburetor
US4186708A (en) Fuel injection apparatus with wetting action
US4532906A (en) Fuel supply system
US3036564A (en) Low-pressure fuel injection device