US3892362A - Fuel injector - Google Patents
Fuel injector Download PDFInfo
- Publication number
- US3892362A US3892362A US484111A US48411174A US3892362A US 3892362 A US3892362 A US 3892362A US 484111 A US484111 A US 484111A US 48411174 A US48411174 A US 48411174A US 3892362 A US3892362 A US 3892362A
- Authority
- US
- United States
- Prior art keywords
- fuel
- plenum chamber
- plunger
- needle
- fuel injector
- 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
Links
Images
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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/04—Pumps peculiar thereto
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors 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
- F02M51/0685—Injectors 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 and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
Definitions
- a major disadvantage of the described central high pressure pump system lies in the volume of the fuel col umn trapped in the distribution pipes between pump and a given injector.
- the trend towards higher maximum speeds for small diesel engines is causing the elasticity and inertia of the fuel column to degrade injection accuracy.
- pressure sensitive means operable to isolate the plenum chamber from fuel inlet
- FIG. 1 is a sectional view of one embodiment of the invention
- FIG. 2 is a sectional view of a second embodiment of the invention.
- FIG. 3 is a sectional view of a third embodiment of the invention.
- All three figures show a body member 1] having a fuel inlet 12, and an outlet nozzle 13 communicating with a bore 14 by way of a plenum chamber 15.
- the bore 14 contains a needle 16 which is shown in a first position closing the outlet nozzle.
- the needle 16 is slidable to a second position in which fuel in plenum chamber is free to flow out of the nozzle.
- the needle contains a plunger bore 17 in which plunger 18 is slidable.
- the body member I] is mounted in an engine block to position the nozzle 13 in a cylinder head combustion chamber.
- FIG. 1 A first figure.
- the needle 16 encloses a chamber 20 and transfer ducts 21 (only two being shown).
- the needle has a pintle shaped end 22 with inclined face 23 and tapered portions 24, 25.
- lnlet ports 26 align with annulus 27 fed by inlet 12.
- the upper end of the needle has seated on it a ring flange 28 which is resiliently loaded by a spring washer 29 to bias the needle to seat tapered portion 24 onto, and so close, nozzle 13.
- the spring rate is chosen to allow the needle 16 to rise under the force exerted on the tapered end of the needle by pressurised liquid fuel in plenum 15.
- Plunger 18 has a passage 30 extendng through it coaxial with plunger 18 and needle 16.
- the plunger 18 has ports 31 alignable with ports 26.
- the plunger is driven from its upper end by a first solenoid.
- Valve head 32 serves to close the bottom end of passage 30 and is mounted on the lower end of stem 33.
- the valve stem 33 is driven from its upper end by a second solenoid.
- diesel fuel is fed to fuel inlet 12 at a pressure selected to fill chamber 20 within a permitted time.
- fuel passes through ports 26, 31 into passage 30.
- the second solenoid drives valve stem 33 to lift head 32 clear of its seating at the bottom of passage 30 so allowing fuel to pass into chamber 20.
- the first solenoid is then energised to drive plunger 18 downwardly over a fixed stroke length to reduce the volume of chamber 20 so pressurising fuel contained in the chamber 20, ducts 21 and plenum chamber 15.
- the embodiment described makes use of solenoids to drive valve stem 33 and the plunger 18.
- the plunger 18 operates on a fixed stroke length so that fuel metering is governed by the period for which head 32 is open to allow the passage of fuel.
- the needle 16 encloses a chamber 40 and transfer ducts 41. lnlet annulus 42 is fed by fuel inlet 12. The upper end of needle 16 has seated on it a flange 43 which is resiliently loaded by spring washer 44 to bias the needle end 45 to close nozzle 13. The rate of spring washer 44 is selected to allow needle 16 to rise under the force exerted on tapered end 46 of the needle 16 by pressurised fuel in plenum chamber 15.
- Plunger 18 has a coaxial passage 47 extending through it which communicates with annulus 42 by way of cross-boring 48.
- the lower end of passage 47 is closable by a ball valve 48 which is resiliently biassed by coil spring 49.
- the plunger 18 is displaceable by a solenoid S0 to vary the volume of chamber 40 and so the pressurisation of fuel in chamber 40 and plenum chamber 15.
- diesel fuel is fed to fuel inlet 12 at a pressure selected to lift ball valve 48 clear of passage 47 and so allow fuel to fill chamber 40 (by way of annulus 42 and cross boring 48) within a permitted time.
- solenoid S0 is energised plunger 18 is driven downwardly causing ball valve 48 to seat on passage 47 and cut off chamber 40 from inlet 12. Further downward movement of the plunger pressurises fuel in chamber 40 and plenum until the fluid pressure is sufficient to lift needle 16 and allow fuel to be injected through nozzle 13 into the cylinder fed by the injector.
- the stroke length of plunger 18 is governed by the solenoid so that the amount of fuel metered can be varied in response to engine load.
- Plenum chamber 15 is linked directly to fuel inlet 12 by way of duct 63 containing ball valve 64 biassed by spring 65 to lie on seating 66 in which position fuel flow from inlet 12 to plenum 15 is cut-off.
- FIGS. 2 and 3 Reference is made in FIGS. 2 and 3 to a ball valve however any appropriate form of resiliently biassed stop valve can be used.
- a fuel injector comprising:
- a body member incorporating a fuel inlet, and a fuel outlet nozzle communicating with a bore by way of a plenum chamber
- a needle slidably disposed within the bore between a first position in which the outlet nozzle is closed and a second position in which the outlet nozzle is open;
- biassing means resiliently loading the needle to wards the first position
- pressure sensitive means operable to isolate the plenum chamber from fuel inlet
- a metering plunger displacing means operable:
- a fuel injector as claimed in claim 1 wherein the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the stroke lengths of the plunger.
- a fuel injector as claimed in claim 1 wherein the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the time for which the plunger is displaced for a fixed stroke length.
- a fuel injector as claimed in claim 1 wherein the pressure sensitive means comprises a resiliently biassed stop valve disposed in a duct linking the fuel inlet directly to the plenum chamber;
- a fuel injector as claimed in claim 1 wherein the pressure sensitive means comprises a resiliently biassed stop valve disposed in a duct linking the fuel inlet to the plenum chamber by way of the plunger.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A unit fuel injector having metering means incorporated in the pumping element of the injector.
Description
United States Patent Gayfer July 1, 1975 FUEL INJECTOR [56] References Cited [75] Inventor: John Roland Gayfer, Alcester, UNITED STATES PATENTS England 2,558,148 6/1951 Nichols 239/574 D 2,959,360 11/1960 Nichols 239/533 [73] fi s" S 324L768 3/1966 Croft 239/533 x 3,233,379 11/1966 Croft 61 al. 2 239/533 x [22] June FOREIGN PATENTS OR APPLICATIONS pp 484,111 746,785 3 1956 United Kingdom .1 239/533 [30] Foreign Application Priority Data Primary ExaminerflR'oben S: l
June 30, 1973 United Kingdom 2 31262/73 Agent & Kruger [52] US. Cl 5 239/533; 239/574 AB TR CT [5 1 1 1 v 1 v 1 A unit fuel injector having metering means inco po [58] Field of Search 1. 239/5 33, 574, 88-91, rated i the pumping den-lent f the injectorv 5 Claims, 3 Drawing Figures PATEmEn uL'nsrs SHEET 7/////// 1 V \N\ w a R ///////%//7 A common system of'fuel injection for diesel engines utilises a central pump which operates to meter a given quantity of fuel, distribute it, perform any necessary governing function and finally feed the fuel by way of a high pressure pipe to the injector for a given cylinder. In such a system the injector is a simple snap-action valve.
A major disadvantage of the described central high pressure pump system lies in the volume of the fuel col umn trapped in the distribution pipes between pump and a given injector. The trend towards higher maximum speeds for small diesel engines is causing the elasticity and inertia of the fuel column to degrade injection accuracy.
According to the present invention there is provided a fuel injector comprising:
a. a body member incorporating a fuel inlet, and a fuel outlet nozzle communicating with a bore by way of a plenum chamber;
b. a needle slidably disposed within the bore between a first position in which the outlet nozzle is closed and a second position in which the outlet nozzle is open;
c. biassing means resiliently loading the needle towards the first position;
d. a metering plunger in a plunger bore in the needle;
e. pressure sensitive means operable to isolate the plenum chamber from fuel inlet; and
f. a metering plunger displacing means operable:
i. to cause the pressure sensitive means to isolate the plenum chamber from fuel inlet;
ii. to pressurise fuel within the plenum chamber to the extent necessary to cause displacement of the needle from the first to second position against the action of the biassing means and allow output from the nozzle of a given amount of fuel from the plenum chamber.
ln a first preferred form of the invention the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the stroke length of the plunger.
ln a second preferred form of the invention the metering plunger displacing means is a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the time for which the plunger is displaced for a fixed stroke length.
FIG. 1 is a sectional view of one embodiment of the invention;
FIG. 2 is a sectional view ofa second embodiment of the invention; and
FIG. 3 is a sectional view of a third embodiment of the invention.
All three figures show a body member 1] having a fuel inlet 12, and an outlet nozzle 13 communicating with a bore 14 by way of a plenum chamber 15. The bore 14 contains a needle 16 which is shown in a first position closing the outlet nozzle. The needle 16 is slidable to a second position in which fuel in plenum chamber is free to flow out of the nozzle. The needle contains a plunger bore 17 in which plunger 18 is slidable. The body member I] is mounted in an engine block to position the nozzle 13 in a cylinder head combustion chamber.
Each figure will now be considered separately.
FIG. 1
The needle 16 encloses a chamber 20 and transfer ducts 21 (only two being shown). The needle has a pintle shaped end 22 with inclined face 23 and tapered portions 24, 25. lnlet ports 26 align with annulus 27 fed by inlet 12. The upper end of the needle has seated on it a ring flange 28 which is resiliently loaded by a spring washer 29 to bias the needle to seat tapered portion 24 onto, and so close, nozzle 13. The spring rate is chosen to allow the needle 16 to rise under the force exerted on the tapered end of the needle by pressurised liquid fuel in plenum 15.
Plunger 18 has a passage 30 extendng through it coaxial with plunger 18 and needle 16. The plunger 18 has ports 31 alignable with ports 26. The plunger is driven from its upper end by a first solenoid.
Valve head 32 serves to close the bottom end of passage 30 and is mounted on the lower end of stem 33. The valve stem 33 is driven from its upper end by a second solenoid.
In operation diesel fuel is fed to fuel inlet 12 at a pressure selected to fill chamber 20 within a permitted time. With the parts in the relative dispositions shown in FIG. 1 fuel passes through ports 26, 31 into passage 30. Thereafter the second solenoid drives valve stem 33 to lift head 32 clear of its seating at the bottom of passage 30 so allowing fuel to pass into chamber 20. The first solenoid is then energised to drive plunger 18 downwardly over a fixed stroke length to reduce the volume of chamber 20 so pressurising fuel contained in the chamber 20, ducts 21 and plenum chamber 15. When fluid pressure acting on the inclined face 23 of the needle exceeds the resilient loading on flange 28, together with the load due to fluid pressure acting on the lower surface containing chamber 20, the needle 16 is raised so allowing fuel to be injected into and through nozzle 13 to the cylinder fed by the injector.
The embodiment described makes use of solenoids to drive valve stem 33 and the plunger 18. The plunger 18 operates on a fixed stroke length so that fuel metering is governed by the period for which head 32 is open to allow the passage of fuel.
FIG. 2
The needle 16 encloses a chamber 40 and transfer ducts 41. lnlet annulus 42 is fed by fuel inlet 12. The upper end of needle 16 has seated on it a flange 43 which is resiliently loaded by spring washer 44 to bias the needle end 45 to close nozzle 13. The rate of spring washer 44 is selected to allow needle 16 to rise under the force exerted on tapered end 46 of the needle 16 by pressurised fuel in plenum chamber 15.
Plunger 18 has a coaxial passage 47 extending through it which communicates with annulus 42 by way of cross-boring 48. The lower end of passage 47 is closable by a ball valve 48 which is resiliently biassed by coil spring 49. The plunger 18 is displaceable by a solenoid S0 to vary the volume of chamber 40 and so the pressurisation of fuel in chamber 40 and plenum chamber 15.
In operation diesel fuel is fed to fuel inlet 12 at a pressure selected to lift ball valve 48 clear of passage 47 and so allow fuel to fill chamber 40 (by way of annulus 42 and cross boring 48) within a permitted time. When the solenoid S0 is energised plunger 18 is driven downwardly causing ball valve 48 to seat on passage 47 and cut off chamber 40 from inlet 12. Further downward movement of the plunger pressurises fuel in chamber 40 and plenum until the fluid pressure is sufficient to lift needle 16 and allow fuel to be injected through nozzle 13 into the cylinder fed by the injector. ln this embodiment the stroke length of plunger 18 is governed by the solenoid so that the amount of fuel metered can be varied in response to engine load.
FIG. 3
The needle 16 encloses a chamber 60 and transfer ports 61. The needle has a pintle shaped end 62. The needle 16 has its upper end loaded by a spring washer in similar manner to that described in connection with FIGS. 1 and 2.
Reference is made in FIGS. 2 and 3 to a ball valve however any appropriate form of resiliently biassed stop valve can be used.
Although the embodiments specifically refer to the use of diesel fuel the injectors described can also be used for petrol.
I claim:
1. A fuel injector comprising:
a. a body member incorporating a fuel inlet, and a fuel outlet nozzle communicating with a bore by way of a plenum chamber;
b. a needle slidably disposed within the bore between a first position in which the outlet nozzle is closed and a second position in which the outlet nozzle is open;
c. biassing means resiliently loading the needle to wards the first position;
d. a metering plunger in a plunger bore in the needle;
e. pressure sensitive means operable to isolate the plenum chamber from fuel inlet; and
f. a metering plunger displacing means operable:
i. to cause the pressure sensitive means to isolate the plenum chamber from fuel inlet;
ii. to pressurise fuel within the plenum chamber to the extent necessary to cause displacement of the needle from the first to second position against the action of the biassing means and allow output from the nozzle of a given amount of fuel from the plenum chamber.
2. A fuel injector as claimed in claim 1 wherein the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the stroke lengths of the plunger.
3. A fuel injector as claimed in claim 1 wherein the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the time for which the plunger is displaced for a fixed stroke length.
4. A fuel injector as claimed in claim 1 wherein the pressure sensitive means comprises a resiliently biassed stop valve disposed in a duct linking the fuel inlet directly to the plenum chamber;
5. A fuel injector as claimed in claim 1 wherein the pressure sensitive means comprises a resiliently biassed stop valve disposed in a duct linking the fuel inlet to the plenum chamber by way of the plunger.
Claims (5)
1. A fuel injector comprising: a. a body member incorporating a fuel inlet, and a fuel outlet nozzle communicating with a bore by way of a plenum chamber; b. a needle slidably disposed within the bore between a first position in which the outlet nozzle is closed and a second position in which the outlet nozzle is open; c. biassing means resiliently loading the needle towards the first position; d. a metering plunger in a plunger bore in the needle; e. pressure sensitive means operable to isolate the plenum chamber from fuel inlet; and f. a metering plunger displacing means operable: i. to cause the pressure sensitive means to isolate the plenum chamber from fuel inlet; ii. to pressurise fuel within the plenum chamber to the extent necessary to cause displacement of the needle from the first to second position against the action of the biassing means and allow output from the nozzle of a given amount of fuel from the plenum chamber.
2. A fuel injector as claimed in claim 1 wherein the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the stroke lengths of the plunger.
3. A fuel injector as claimed in claim 1 wherein the metering plunger displacing means comprises a solenoid adapted to vary the metered quantity of fuel from the plenum chamber by varying the time for which the plunger is displaced for a fixed stroke length.
4. A fuel injector as claimed in claim 1 wherein the pressure sensitive means comprises a resiliently biassed stop valve disposed in a duct linking the fuel inlet directly to the plenum chamber.
5. A fuel injector as claimed in claim 1 wherein the pressure sensitive means comprises a resiliently biassed stop valve disposed in a duct linking the fuel inlet to the plenum chamber by way of the plunger.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3126273A GB1470373A (en) | 1973-06-30 | 1973-06-30 | Fuel injector |
Publications (1)
Publication Number | Publication Date |
---|---|
US3892362A true US3892362A (en) | 1975-07-01 |
Family
ID=10320478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US484111A Expired - Lifetime US3892362A (en) | 1973-06-30 | 1974-06-28 | Fuel injector |
Country Status (5)
Country | Link |
---|---|
US (1) | US3892362A (en) |
JP (1) | JPS50106029A (en) |
DE (1) | DE2431172A1 (en) |
FR (1) | FR2235289B1 (en) |
GB (1) | GB1470373A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010903A (en) * | 1974-06-27 | 1977-03-08 | Torazo Saito | Nozzle for injection molding of thermoplastics |
WO1984004059A1 (en) * | 1983-04-18 | 1984-10-25 | Medepe Pty Ltd | Apparatus for generating pulsations in a flowing liquid |
US4651931A (en) * | 1984-05-19 | 1987-03-24 | Robert Bosch Gmbh | Injection valve |
US4658824A (en) * | 1984-08-10 | 1987-04-21 | L'orange Gmbh | Fuel-injection device for an internal-combustion engine |
US4982901A (en) * | 1986-07-19 | 1991-01-08 | Robert Bosch Gmbh | Injection valve |
DE4209065A1 (en) * | 1992-03-20 | 1993-09-23 | Opco Oberflaechentechnik Gmbh | Valve and dispensing appts. esp. for robotic spray system - has coaxial dispensing and control cylinder and piston, valve needle with valve body moved by spring force and control fluid |
DE4220048A1 (en) * | 1992-06-19 | 1993-12-23 | Fft Flexible Fertigungstechnik | Regulatable and controllable application system for viscous media - has nozzle system having nozzle piston and nozzle piece with longitudinal bore for piston and dosing nozzle |
US5954033A (en) * | 1996-12-09 | 1999-09-21 | Caterpillar Inc. | Fuel injector having non contacting valve closing orifice structure |
CN102910569A (en) * | 2012-11-22 | 2013-02-06 | 黎泽荣 | Flow adjustable multi-nozzle filling machine |
US20170204826A1 (en) * | 2016-01-18 | 2017-07-20 | Ford Global Technologies, Llc | Multi-hole fuel injector with sequential fuel injection |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT378242B (en) * | 1981-07-31 | 1985-07-10 | Berchtold Max Prof | FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY DIESEL ENGINES |
GB2223804A (en) * | 1988-10-13 | 1990-04-18 | Volkswagen Ag | I.C. engine fuel injection pump and nozzle |
WO2013019141A1 (en) * | 2011-08-03 | 2013-02-07 | Zuev Boris Konstantinovich | Shut-off spray-nozzle unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2558148A (en) * | 1948-03-08 | 1951-06-26 | Cav Ltd | Liquid fuel injection nozzle for internal-combustion engines |
US2959360A (en) * | 1957-09-20 | 1960-11-08 | Alco Products Inc | Fuel injectors |
US3241768A (en) * | 1963-05-01 | 1966-03-22 | Ass Eng Ltd | Fuel injection valves |
US3288379A (en) * | 1963-09-09 | 1966-11-29 | Ass Eng Ltd | Fuel injection valves |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1804660A (en) * | 1927-03-31 | 1931-05-12 | Treiber Diesel Engine Corp | Liquid fuel feeding means for internal combustion engines |
GB397493A (en) * | 1932-02-18 | 1933-08-18 | William Douglas Marchant | Improvements in injection apparatus for fuel for internal combustion engines |
FR913174A (en) * | 1941-07-11 | 1946-08-30 | France Etat | High-pressure relay injector with medium-pressure hydraulic control |
-
1973
- 1973-06-30 GB GB3126273A patent/GB1470373A/en not_active Expired
-
1974
- 1974-06-28 DE DE2431172A patent/DE2431172A1/en active Pending
- 1974-06-28 FR FR7422614A patent/FR2235289B1/fr not_active Expired
- 1974-06-28 US US484111A patent/US3892362A/en not_active Expired - Lifetime
- 1974-06-29 JP JP49074904A patent/JPS50106029A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2558148A (en) * | 1948-03-08 | 1951-06-26 | Cav Ltd | Liquid fuel injection nozzle for internal-combustion engines |
US2959360A (en) * | 1957-09-20 | 1960-11-08 | Alco Products Inc | Fuel injectors |
US3241768A (en) * | 1963-05-01 | 1966-03-22 | Ass Eng Ltd | Fuel injection valves |
US3288379A (en) * | 1963-09-09 | 1966-11-29 | Ass Eng Ltd | Fuel injection valves |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010903A (en) * | 1974-06-27 | 1977-03-08 | Torazo Saito | Nozzle for injection molding of thermoplastics |
WO1984004059A1 (en) * | 1983-04-18 | 1984-10-25 | Medepe Pty Ltd | Apparatus for generating pulsations in a flowing liquid |
US4651931A (en) * | 1984-05-19 | 1987-03-24 | Robert Bosch Gmbh | Injection valve |
US4658824A (en) * | 1984-08-10 | 1987-04-21 | L'orange Gmbh | Fuel-injection device for an internal-combustion engine |
US4982901A (en) * | 1986-07-19 | 1991-01-08 | Robert Bosch Gmbh | Injection valve |
DE4209065A1 (en) * | 1992-03-20 | 1993-09-23 | Opco Oberflaechentechnik Gmbh | Valve and dispensing appts. esp. for robotic spray system - has coaxial dispensing and control cylinder and piston, valve needle with valve body moved by spring force and control fluid |
DE4220048A1 (en) * | 1992-06-19 | 1993-12-23 | Fft Flexible Fertigungstechnik | Regulatable and controllable application system for viscous media - has nozzle system having nozzle piston and nozzle piece with longitudinal bore for piston and dosing nozzle |
US5954033A (en) * | 1996-12-09 | 1999-09-21 | Caterpillar Inc. | Fuel injector having non contacting valve closing orifice structure |
CN102910569A (en) * | 2012-11-22 | 2013-02-06 | 黎泽荣 | Flow adjustable multi-nozzle filling machine |
US20170204826A1 (en) * | 2016-01-18 | 2017-07-20 | Ford Global Technologies, Llc | Multi-hole fuel injector with sequential fuel injection |
US9964088B2 (en) * | 2016-01-18 | 2018-05-08 | Ford Global Technologies, Llc | Multi-hole fuel injector with sequential fuel injection |
Also Published As
Publication number | Publication date |
---|---|
FR2235289B1 (en) | 1978-01-13 |
JPS50106029A (en) | 1975-08-21 |
DE2431172A1 (en) | 1975-01-16 |
FR2235289A1 (en) | 1975-01-24 |
GB1470373A (en) | 1977-04-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3892362A (en) | Fuel injector | |
US4545352A (en) | Electromagnetic control injection systems for diesel engines of the pressure-time type where the injector needle is controlled by the charging and discharging of a chamber | |
US3516395A (en) | Fuel injection system for internal combustion engines | |
US4219154A (en) | Electronically controlled, solenoid operated fuel injection system | |
US4197996A (en) | Constant pressure fuel injector assembly | |
US4972996A (en) | Dual lift electromagnetic fuel injector | |
GB1390422A (en) | Fuel injection systems for internal combustion engines | |
GB1391327A (en) | Fuel injection devices for internal combustion engines | |
EP0187112B1 (en) | Solenoid valve, particularly as bypass valve with fuel injector | |
JP2774854B2 (en) | Electromagnetic fuel injector for diesel engines | |
GB1521065A (en) | Fuel injection valve assembly for a reciprocating piston internal-combustion engine | |
GB1347488A (en) | Liquid fuel injection pumping apparatus for an 'internal combustion engine | |
US20100175665A1 (en) | Fuel injector | |
JP2003524725A (en) | Compact Two-Stage Solenoid Valve for Injector of Fuel Injection System for Internal Combustion Engine | |
JP3145108B2 (en) | Solenoid valves, especially for fuel injection pumps | |
US4541394A (en) | Fuel injection pump | |
EP0333097A2 (en) | Relief valve assembly for accumulator type fuel injection nozzle | |
JPH0681937B2 (en) | Fuel injection device for diesel internal combustion engine | |
EP1077326A2 (en) | Fuel injector | |
GB2367330A (en) | Common-rail fuel injector | |
US4423715A (en) | Fuel pump-injector unitary assembly for internal combustion engine | |
US20020043569A1 (en) | Pressure-controlled injector for injecting fuel | |
US5878965A (en) | Internally wetted cartridge control valve for a fuel injector | |
US4381751A (en) | Fuel injection system | |
US3446440A (en) | Double injection system with one nozzle |