CN105464865A - Diesel fuel injector with double fuel injection nozzles - Google Patents
Diesel fuel injector with double fuel injection nozzles Download PDFInfo
- Publication number
- CN105464865A CN105464865A CN201610020522.7A CN201610020522A CN105464865A CN 105464865 A CN105464865 A CN 105464865A CN 201610020522 A CN201610020522 A CN 201610020522A CN 105464865 A CN105464865 A CN 105464865A
- Authority
- CN
- China
- Prior art keywords
- oil
- needle
- push rod
- valve
- armature
- 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.)
- Granted
Links
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
- F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
- F02M51/0617—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1846—Dimensional characteristics of discharge orifices
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
The invention discloses a diesel fuel injector with double fuel injection nozzles, which can be used for independently controlling the two fuel injection nozzles to inject fuel. Two armature control cavities are arranged inside an armature control body; each of the armature control cavities is provided with an armature; releasing/throttling holes are formed below the armature control cavities and are communicated with lower ejector rod control cavities; the upper part of the armature control body is connected with two locking nuts corresponding to the two armature control cavities; ejector rods in the two inner cavities of ejector rod bodies are respectively controlled through the armatures; two needle valves are arranged in a way of corresponding to the two ejector rods; one of the fuel injection nozzles is controlled by each needle valve; and the amount of fuel injection holes in the two fuel injection nozzles can be set to be different or same according to the actual condition. By using the fuel injector, two fuel injection space changes in the secondary injection process can be realized, and the fuel space atomization can be better utilized, so that diesel fuel is uniformly atomized, and the discharge of particles of a diesel is reduced; and two fuel injections are respectively independently controlled by the two needle valves, so that the time interval of secondary injection can be controlled within a relatively small range.
Description
Technical field
The present invention relates to diesel injector construction applications, relate in particular to the two oil nozzle electric-controlled fuel injector of a kind of diesel engine.
Background technique
Common rail injection formula oil supply system is made up of high pressure oil pump, common feeder line, oil sprayer, ECU (Electrical Control Unit) (ECU) and some pipe pressure sensors, each oil sprayer in system is connected with common feeder line by respective high-pressure oil pipe, and common feeder line plays the effect of fluid power pressure accumulation to oil sprayer.During work, high pressure oil pump with high pressure by fuel delivery to common feeder line, high pressure oil pump, pressure transducer and ECU form Closed loop operation, realize accurately controlling, revolutionize the phenomenon that charge oil pressure changes with engine speed to the oil pressure in common feeder line.
Electric-controlled fuel injector is most critical and the most complicated parts in joint-track type oil-fired system, its effect is the control signal sent according to ECU, by the opening and closing of Controlling solenoid valve, the fuel oil in high pressure oil rail is sprayed into the firing chamber of diesel engine with the injection timing of the best, fuel injection quantity and fuel injection rate.
High-pressure common-rail injection system can control fuel injection rate and fuel injection characteristic, Electrocontrolled high-pressure common rail oil sprayer is utilized easily to realize secondary injection or multi-injection, suitable secondary injection ratio and injection timing can reduce maximum combustion temperature in cylinder, suppress pinking, improve the fuel economy of sub load, combustion stability, emission performance.
Summary of the invention
The object of the invention is to: when realizing secondary injection for common oil sprayer, twice spray area is overlapping, easily causes the shortcoming of partial mixture overrich, propose one and there are two inner chambers, the oil sprayer of two nozzles.
For achieving the above object, present invention employs following technological scheme: a kind of electric control oil injector of diesel engine, armature control volume inside arranges two armature and controls inner chamber, described two armature control to be equipped with armature in inner chamber, armature controls to be provided with release throttle orifice below inner chamber and is communicated with bottom push rod control chamber, corresponding two armature in armature control volume top control inner chamber and connect two lock nuts, in described two lock nuts, return spring, coil are all set, oil return bolt, coil connectors are set outside lock nut, in oil return bolt, have back oil road; Push rod body is connected by internal thread below armature control volume, described push rod body inside arranges two push rod inner chambers, be equipped with push rod and return spring in two push rod inner chambers, in each push rod inner chamber, return spring is enclosed within push rod bottom, and push rod top arranges push rod control chamber; By swivel nut connecting needle valve body below push rod body, needle-valve body arranges two oil nozzles in left and right, and left and right oil nozzle arranges nozzle opening respectively, and two corresponding two needle-valve inner chambers of oil nozzle, are provided with needle-valve and needle-valve pressure chamber in each needle-valve chamber.
Further, in the middle of two push rod inner chambers, oil duct and filler opening are set, be communicated with two push rod control chambers and filler opening above described oil duct, below oil duct, be communicated with two needle-valve pressure chambers, give two push rod control chambers and two needle-valve pressure chamber fuel feeding by described filler opening and oil duct simultaneously.
Further, left side oil nozzle arranges 4 φ 0.15mm nozzle openings, wherein three left side side direction nozzle openings, nozzle opening cone angle 120 °, a center nozzle opening; Right side oil nozzle arranges 4 φ 0.15mm nozzle openings, wherein three right side side direction nozzle openings, nozzle opening cone angle 120 °, a center nozzle opening.
Further, during the coil connectors energising of left side, left side side direction nozzle opening on the oil nozzle of left side and the oil spout of Left-side center nozzle opening, after the coil connectors power-off of left side, left side side direction nozzle opening and Left-side center nozzle opening are closed, during the coil connectors energising of right side, right side side direction nozzle opening on the oil nozzle of right side and the oil spout of right center nozzle opening, after the coil connectors power-off of right side, right side side direction nozzle opening and right center nozzle opening are closed, by controlling two the coil connectors alternate energisations in left and right, power-off, two oil nozzles in left and right can be realized and replace oil spout, realize the change in twice spraying space.
Beneficial effect of the present invention: secondary injection process can be realized and to spray for twice change in space, utilize the space of fuel to be atomized better, make diesel oil atomization even, reduce diesel particulate emission; Independently control twice oil spout owing to have employed two needle-valves, the time lag controlling secondary injection can control in shorter scope.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
In figure: 1. oil return bolt I; 2. oil return bolt II; 3. back oil road I; 4. back oil road II; 5, lock nut I; 6. lock nut II; 7. coil connectors I; 8. coil connectors II; ; 9. coil I; 10. coil II; 11. return springs I; 12. return springs II; 13. armature I; 14. armature II; 15. spill ports I; 16. spill ports II; 17. filler openings; 18. armature control volumes; 19. ball valves I; 20. ball valves II; 21. release throttle orifices I; 22. release throttle orifices II; 23. oil-filled throttle orifices I; 24. oil-filled throttle orifices II; 25. push rod control chambers I; 26. push rod control chambers II; 27. push rods I; 28. push rods II; 29. oil ducts; 30. push rod bodies; 31. return springs III; 32. return springs IV; 33. needle-valves I; 34. needle-valves II; 35. needle-valve pressure chambers I; 36. needle-valve pressure chambers II; 37. needle-valve bodies; 38. swivel nuts; Side direction nozzle opening on the left of in the of 39.; 40. Left-side center nozzle openings; Side direction nozzle opening on the right side of in the of 41.; 42, right center nozzle opening.
Fig. 2 is I place's zoomed-in view in Fig. 1;
Fig. 3 is II place's zoomed-in view in Fig. 1;
Fig. 4 is the sectional view along A-A direction in Fig. 1;
Fig. 5 is the sectional view along B-B direction in Fig. 1.
Embodiment
For making the object of the embodiment of the present invention and technological scheme clearly, below in conjunction with the accompanying drawing of the embodiment of the present invention, the technological scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, belongs to the scope of protection of the invention.
The structure of the present embodiment as shown in Figure 1, armature control volume (18) inside arranges two armature and controls inner chamber, two armature control to be respectively equipped with armature I (13) in inner chamber, armature II (14), left side armature controls to be provided with release throttle orifice I (21) below inner chamber and is communicated with bottom push rod control chamber I (25), right side armature controls to be provided with release throttle orifice II (22) below inner chamber and is communicated with bottom push rod control chamber II (26), corresponding two armature in armature control volume (18) top control inner chamber and connect lock nut I (5) respectively, lock nut II (6), in described lock nut I (5), return spring I (11) is set, coil I (9), oil return bolt I (1) is set outside lock nut I (5), coil connectors I (7), back oil road I (3) is had in oil return bolt I (1), return spring II (12), coil II (10) are set in described lock nut II (6), oil return bolt II (2), coil connectors II (8) are set outside lock nut II (6), in oil return bolt II (2), have back oil road II (4), armature control volume (18) below is threaded connection push rod body (30), described push rod body (30) inside arranges two push rod inner chambers, push rod and return spring is equipped with in two push rod inner chambers, in the push rod inner chamber of left side, return spring III (31) is enclosed within push rod I (27) bottom, push rod I (27) top is push rod control chamber I (25), in the push rod inner chamber of right side, return spring IV (32) is enclosed within push rod II (28) bottom, and push rod II (28) top is push rod control chamber II (26), by swivel nut (38) connecting needle valve body (37) below push rod body 18, needle-valve body (37) arranges two oil nozzles in left and right, left and right oil nozzle arranges nozzle opening respectively, two corresponding two needle-valve inner chambers of oil nozzle, be provided with needle-valve I (33) and needle-valve pressure chamber I (35) in the needle-valve inner chamber of left side, in the needle-valve inner chamber of right side, be provided with needle-valve II (34) and needle-valve pressure chamber II (36), in the middle of two push rod inner chambers, oil duct (29) and filler opening (17) are set, oil duct (29) top is communicated with push rod control chamber I (25) and push rod control chamber II (26), oil duct (29) bottom is communicated with needle-valve pressure chamber I (35) and needle-valve pressure chamber II (36), and filler opening (17) is communicated with oil duct (29) and fuel inlet fitting, left side oil nozzle arranges 4 φ 0.15mm nozzle openings, wherein three left sides side direction nozzle opening (39), nozzle opening cone angle 120 °, a Left-side center nozzle opening (40), right side oil nozzle arranges 4 φ 0.15mm nozzle openings, wherein three right sides side direction nozzle opening (41), nozzle opening cone angle 120 °, a right center nozzle opening (42).When coil connectors I (7) is energized, left side side direction nozzle opening (39) on the oil nozzle of left side and Left-side center nozzle opening (40) oil spout, after coil connectors I (7) power-off, left side side direction nozzle opening (39) and Left-side center nozzle opening (40) are closed, when coil connectors II (8) is energized, right side side direction nozzle opening (41) on the oil nozzle of right side and right center nozzle opening (42) oil spout, after coil connectors II (8) power-off, right side side direction nozzle opening (41) and right center nozzle opening (42) are closed, by control coil joint I (7), coil connectors II (8) alternate energisation, power-off, two oil nozzles in left and right can be realized and replace oil spout, realize the change in twice spraying space.
During actual use, oil sprayer is fixed on engine body by pressing plate, fuel supply line is communicated with filler opening (17) by fuel inlet fitting, oil return bolt I (1), oil return bolt II (2) are connected with return tube, and coil connectors I (7), coil connectors II (8) are connected with the electrical connector of control unit of engine.
During engine operation, savings high pressure oil in fuel supply line, high pressure oil enters push rod control chamber I (25), push rod control chamber II (26), needle-valve pressure chamber I (35), the push rod pressure chamber II (36) of oil sprayer by fuel supply line and filler opening (17) and oil duct (29).
At coil connectors I (7), under the equal no electric circuit state of coil connectors II (8), armature I (13) is under return spring I (11) pretightening force effect, ball valve I (19) blocks release throttle orifice I (21), armature II (14) is under return spring II (12) pretightening force effect, ball valve II (20) blocks release throttle orifice II (22), high pressure oil pressure in push rod control chamber I (25) and needle-valve pressure chamber I (35) is equal, high pressure oil pressure in push rod control chamber II (26) and needle-valve pressure chamber II (36) is equal, needle-valve I (33) blocks left side nozzle opening under return spring III (31) elastic force effect, needle-valve II (34) blocks right side nozzle opening under return spring IV (32) elastic force effect, now oil sprayer is in closed condition.
Coil connectors I (7) is energized and coil connectors II (8) when not being energized, the magnetic force that coil I (9) produces overcomes the pretightening force of return spring I (11), armature I (13) is moved upward, ball valve I (19) opens release throttle orifice I (21), the high pressure oil overflowed by release throttle orifice I (21) is through spill port I (15), back oil road I (3) flows to return tube, pressure now in push rod control chamber I (25) is less than the pressure of needle-valve pressure chamber I (35), under pressure difference effect, the elastic force that needle-valve I (33) overcomes return spring III (31) moves upward, now left side side direction nozzle opening (39), Left-side center nozzle opening (40) is opened, high pressure oil in needle-valve pressure chamber I (35) by the gap between inner chamber on the left of needle-valve I (33) and needle-valve body (37) from left side side direction nozzle opening (39), Left-side center nozzle opening (40) sprays in cylinder, now oil sprayer is in left side oil nozzle working state.
If now coil connectors I (7) power-off, armature I (13) is return under return spring I (11) acts on, ball valve I (19) compresses release throttle orifice I (21), the pressure of the pressure in push rod control chamber I (25) and needle-valve pressure chamber I (35) is reached unanimity, needle-valve I (33) return under the elastic force effect of return spring III (31), left side side direction nozzle opening (39), Left-side center nozzle opening (40) are closed.
Coil connectors II (8) is energized and coil connectors I (7) when not being energized, the magnetic force that coil II (10) produces overcomes the pretightening force of return spring II (12), armature II (14) is moved upward, ball valve II (20) opens release throttle orifice II (22), the high pressure oil overflowed by release throttle orifice II (22) flows to return tube through spill port II (16) and back oil road II (4), pressure now in push rod control chamber II (26) is less than the pressure of needle-valve pressure chamber II (36), under pressure difference effect, the elastic force that needle-valve II (34) overcomes return spring IV (32) moves upward, now right side side direction nozzle opening (41), right center nozzle opening (42) is opened, high pressure oil in needle-valve pressure chamber II (36) by the gap between inner chamber on the right side of needle-valve II (34) and needle-valve body (37) from right side side direction nozzle opening (41), right center nozzle opening (42) sprays in cylinder, now oil sprayer is in right side oil nozzle working state.
If now coil connectors II (8) power-off, armature II (14) is return under return spring II (12) elastic force effect, ball valve II (20) compresses release throttle orifice II (22), the pressure of the pressure in push rod control chamber II (26) and needle-valve pressure chamber II (36) is reached unanimity, needle-valve II (34) return under the elastic force effect of return spring IV (32), right side side direction nozzle opening (41), right center nozzle opening (42) are closed.
Therefore, by switching on and off coil connectors I (7) and coil connectors II (8), just can control two nozzles in left and right and replacing oil spout, realizing the change in twice spraying space.
Claims (7)
1. the two oil nozzle oil sprayer of diesel engine, independently can control two oil nozzle oil spouts, realize the change in twice oil spout region in secondary injection, by oil return bolt I (1), oil return bolt II (2), back oil road I (3), back oil road II (4), lock nut I (5), lock nut II (6), coil connectors I (7), coil connectors II (8), coil I (9), coil II (10), return spring I (11), return spring II (12), armature I (13), armature II (14), spill port I (15), spill port II (16), filler opening (17), armature control volume (18), ball valve I (19), ball valve II (20), release throttle orifice I (21), release throttle orifice II (22), oil-filled throttle orifice I (23), oil-filled throttle orifice II (24), push rod control chamber I (25), push rod control chamber II (26), push rod I (27), push rod II (28), oil duct (29), push rod body (30), return spring III (31), return spring IV (32), needle-valve I (33), needle-valve II (34), needle-valve pressure chamber I (35), needle-valve pressure chamber II (36), needle-valve body (37), swivel nut (38), left side side direction nozzle opening (39), Left-side center nozzle opening (40), right side side direction nozzle opening (41), right center nozzle opening (42) forms, and it is characterized in that: armature control volume (18) inside arranges two armature and controls inner chamber, and two armature control to be respectively equipped with armature I (13) in inner chamber, armature II (14), left side armature controls to be provided with release throttle orifice I (21) below inner chamber and is communicated with bottom push rod control chamber I (25), right side armature controls to be provided with release throttle orifice II (22) below inner chamber and is communicated with bottom push rod control chamber II (26), and corresponding two armature in armature control volume (18) top control inner chamber and connect lock nut I (5) respectively, lock nut II (6), arranges return spring I (11) in described lock nut I (5), coil I (9), arranges oil return bolt I (1) outside lock nut I (5), coil connectors I (7), has back oil road I (3) in oil return bolt I (1), return spring II (12), coil II (10) are set in described lock nut II (6), oil return bolt II (2), coil connectors II (8) are set outside lock nut II (6), in oil return bolt II (2), have back oil road II (4), armature control volume (18) below is threaded connection push rod body (30), described push rod body (30) inside arranges two push rod inner chambers, push rod and return spring is equipped with in two push rod inner chambers, in the push rod inner chamber of left side, return spring III (31) is enclosed within push rod I (27) bottom, push rod I (27) top is push rod control chamber I (25), in the push rod inner chamber of right side, return spring IV (32) is enclosed within push rod II (28) bottom, and push rod II (28) top is push rod control chamber II (26), by swivel nut (38) connecting needle valve body (37) below push rod body 18, needle-valve body (37) arranges two oil nozzles in left and right, left and right oil nozzle arranges nozzle opening respectively, two corresponding two needle-valve inner chambers of oil nozzle, be provided with needle-valve I (33) and needle-valve pressure chamber I (35) in the needle-valve inner chamber of left side, in the needle-valve inner chamber of right side, be provided with needle-valve II (34) and needle-valve pressure chamber II (36), in the middle of two push rod inner chambers, oil duct (29) and filler opening (17) are set, oil duct (29) top is communicated with push rod control chamber I (25) and push rod control chamber II (26), oil duct (29) bottom is communicated with needle-valve pressure chamber I (35) and needle-valve pressure chamber II (36), and filler opening (17) is communicated with oil duct (29) and fuel inlet fitting, left side oil nozzle arranges 4 φ 0.15mm nozzle openings, wherein three left sides side direction nozzle opening (39), nozzle opening cone angle 120 °, a Left-side center nozzle opening (40), right side oil nozzle arranges 4 φ 0.15mm nozzle openings, wherein three right sides side direction nozzle opening (41), nozzle opening cone angle 120 °, a right center nozzle opening (42), when coil connectors I (7) is energized, left side side direction nozzle opening (39) on the oil nozzle of left side and Left-side center nozzle opening (40) oil spout, after coil connectors I (7) power-off, left side side direction nozzle opening (39) and Left-side center nozzle opening (40) are closed, when coil connectors II (8) is energized, right side side direction nozzle opening (41) on the oil nozzle of right side and right center nozzle opening (42) oil spout, after coil connectors II (8) power-off, right side side direction nozzle opening (41) and right center nozzle opening (42) are closed, by control coil joint I (7), coil connectors II (8) alternate energisation, power-off, two oil nozzles in left and right can be realized and replace oil spout, realize the change in twice spraying space.
2. oil duct according to claim 1 (29), it is characterized in that: oil duct (29) top is communicated with filler opening (17) and push rod control chamber I (25), push rod control chamber II (26), oil duct (29) below is communicated with needle-valve pressure chamber I (35) and needle-valve pressure chamber II (36).
3. armature control volume (18) according to claim 1, it is characterized in that: armature control volume (18) inside is provided with two armature and controls inner chamber, left side armature controls to be provided with armature I (13) in inner chamber, right side armature controls to be provided with armature II (14) in inner chamber, and corresponding two armature in armature control volume (18) top control inner chamber and connect lock nut I (5), lock nut II (6) respectively.
4. push rod body (30) according to claim 1, it is characterized in that: push rod body (30) inside is provided with two push rod inner chambers, in the push rod inner chamber of left side, return spring III (31) is enclosed within push rod I (27) bottom, push rod I (27) top is push rod control chamber I (25), in the push rod inner chamber of right side, return spring IV (32) is enclosed within push rod II (28) bottom, and push rod II (28) top is push rod control chamber II (26).
5. needle-valve body according to claim 1 (37), it is characterized in that: needle-valve body (37) arranges two oil nozzles in left and right, left and right oil nozzle arranges nozzle opening respectively, two corresponding two needle-valve inner chambers of oil nozzle, be provided with needle-valve I (33) and needle-valve pressure chamber I (35) in the needle-valve inner chamber of left side, in the needle-valve inner chamber of right side, be provided with needle-valve II (34) and needle-valve pressure chamber II (36).
6. needle-valve body according to claim 1 (37) left and right two oil nozzles on nozzle opening is set respectively, it is characterized in that: the oil spout hole count on the oil nozzle of two, left and right can be set to 1-8 varying number asymmetric distribution according to actual conditions or equal number symmetrical.
7. according to claim 1 by control coil joint I (7), coil connectors II (8) alternate energisation, power-off, two oil nozzles in left and right can be realized and replace oil spout, realize the change in twice spraying space, it is characterized in that: coil connectors I (7) is energized and coil connectors II (8) when not being energized, the elastic force that the magnetic force that coil I (9) produces makes armature I (13) overcome return spring I (11) moves upward, ball valve I (19) opens release throttle orifice I (21), through spill port I (15) after high pressure oil in push rod control chamber I (25) overflows from release throttle orifice I (21), back oil road I (3) flows to return tube, make the pressure of pressure lower than needle-valve pressure chamber I (35) mesohigh oil of push rod control chamber I (25) mesohigh oil, the elastic force that needle-valve I (33) overcomes return spring III (31) under pressure difference effect moves upward, left side oil nozzle is opened, high pressure oil in needle-valve pressure chamber I (35) is sprayed from left side side direction nozzle opening (39) of left side oil nozzle and Left-side center nozzle opening (40) through the gap between needle-valve I (33) and needle-valve body (37) left side inner chamber, if now coil connectors I (7) power-off, armature I (13) is return under return spring I (11) acts on, ball valve I (19) compresses release throttle orifice I (21), the pressure of the pressure in push rod control chamber I (25) and needle-valve pressure chamber I (35) is reached unanimity, needle-valve I (33) return under the elastic force effect of return spring III (31), left side side direction nozzle opening (39), Left-side center nozzle opening (40) are closed, coil connectors II (8) is energized and coil connectors I (7) when not being energized, the elastic force that the magnetic force that coil II (10) produces makes armature II (14) overcome return spring II (12) moves upward, through spill port II (16) after high pressure oil in push rod control chamber II (26) overflows from release throttle orifice II (22), back oil road II (4) flows to return tube, make the pressure of pressure lower than needle-valve pressure chamber II (36) mesohigh oil of push rod control chamber II (26) mesohigh oil, the elastic force that needle-valve II (34) overcomes return spring IV (32) under pressure difference effect moves upward, right side oil nozzle is opened, high pressure oil in needle-valve pressure chamber II (36) is sprayed from right side side direction nozzle opening (41) of right side oil nozzle and right center nozzle opening (42) through the gap between needle-valve II (34) and needle-valve body (37) right side inner chamber, if now coil connectors II (8) power-off, armature II (14) is return under return spring II (12) elastic force effect, ball valve II (20) compresses release throttle orifice II (22), the pressure of the pressure in push rod control chamber II (26) and needle-valve pressure chamber II (36) is reached unanimity, needle-valve II (34) return under the elastic force effect of return spring IV (32), right side side direction nozzle opening (41), right center nozzle opening (42) is closed, therefore be switched in alternation coil connectors I (7) and coil connectors II (8) just can control two oil nozzles in left and right and replace oil spout, realize the change in twice spraying space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020522.7A CN105464865B (en) | 2016-01-13 | 2016-01-13 | A kind of double atomizer fuel injectors of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020522.7A CN105464865B (en) | 2016-01-13 | 2016-01-13 | A kind of double atomizer fuel injectors of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105464865A true CN105464865A (en) | 2016-04-06 |
| CN105464865B CN105464865B (en) | 2017-11-07 |
Family
ID=55602943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020522.7A Expired - Fee Related CN105464865B (en) | 2016-01-13 | 2016-01-13 | A kind of double atomizer fuel injectors of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105464865B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443040A (en) * | 2018-05-25 | 2018-08-24 | 李玉龙 | Medium and heavy-duty engines monomer crosspointer valve twin-jet nozzle high pressure common rail injector |
| US10364934B1 (en) | 2018-08-14 | 2019-07-30 | Caterpillar Inc. | Support structure for supporting a conduit of an engine |
| US10767610B2 (en) | 2018-08-21 | 2020-09-08 | Caterpillar Inc. | Liquid fuel injector having dual nozzle outlet sets, fuel system, and method |
| US10989153B2 (en) | 2018-08-21 | 2021-04-27 | Caterpillar Inc. | Fuel system for reducing fuel targeting errors and engine operating method |
| US11225933B2 (en) | 2018-07-20 | 2022-01-18 | Caterpillar Inc. | Twin outlet check liquid fuel injector for dual fuel system |
| US11448175B1 (en) | 2021-06-03 | 2022-09-20 | General Electric Company | Fuel nozzle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11815025B2 (en) | 2021-05-07 | 2023-11-14 | General Electric Company | Fuel nozzle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070246561A1 (en) * | 2006-03-31 | 2007-10-25 | Gibson Dennis H | Twin needle valve dual mode injector |
| CN101694195A (en) * | 2009-08-20 | 2010-04-14 | 余姚市舒春机械有限公司 | Double-needle-valve matching part of marine diesel engine |
| DE102013000048B3 (en) * | 2013-01-07 | 2014-06-12 | L'orange Gmbh | Doppelnadelinjektor |
| CN103967671A (en) * | 2014-05-22 | 2014-08-06 | 中国北方发动机研究所(天津) | Dual-valve orifice-area-variable fuel nozzle |
| US20150247468A1 (en) * | 2015-04-30 | 2015-09-03 | Caterpillar Inc. | Method to operate a dual-nozzle fuel injector |
| CN204783397U (en) * | 2015-07-09 | 2015-11-18 | 胡松平 | Diesel oil, alcohols double fuel integral type sprayer |
| CN205478036U (en) * | 2016-01-13 | 2016-08-17 | 吉林大学 | Two fuel sprayer sprayers of diesel engine |
-
2016
- 2016-01-13 CN CN201610020522.7A patent/CN105464865B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070246561A1 (en) * | 2006-03-31 | 2007-10-25 | Gibson Dennis H | Twin needle valve dual mode injector |
| CN101694195A (en) * | 2009-08-20 | 2010-04-14 | 余姚市舒春机械有限公司 | Double-needle-valve matching part of marine diesel engine |
| DE102013000048B3 (en) * | 2013-01-07 | 2014-06-12 | L'orange Gmbh | Doppelnadelinjektor |
| CN103967671A (en) * | 2014-05-22 | 2014-08-06 | 中国北方发动机研究所(天津) | Dual-valve orifice-area-variable fuel nozzle |
| US20150247468A1 (en) * | 2015-04-30 | 2015-09-03 | Caterpillar Inc. | Method to operate a dual-nozzle fuel injector |
| CN204783397U (en) * | 2015-07-09 | 2015-11-18 | 胡松平 | Diesel oil, alcohols double fuel integral type sprayer |
| CN205478036U (en) * | 2016-01-13 | 2016-08-17 | 吉林大学 | Two fuel sprayer sprayers of diesel engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443040A (en) * | 2018-05-25 | 2018-08-24 | 李玉龙 | Medium and heavy-duty engines monomer crosspointer valve twin-jet nozzle high pressure common rail injector |
| US11225933B2 (en) | 2018-07-20 | 2022-01-18 | Caterpillar Inc. | Twin outlet check liquid fuel injector for dual fuel system |
| US10364934B1 (en) | 2018-08-14 | 2019-07-30 | Caterpillar Inc. | Support structure for supporting a conduit of an engine |
| US10767610B2 (en) | 2018-08-21 | 2020-09-08 | Caterpillar Inc. | Liquid fuel injector having dual nozzle outlet sets, fuel system, and method |
| US10989153B2 (en) | 2018-08-21 | 2021-04-27 | Caterpillar Inc. | Fuel system for reducing fuel targeting errors and engine operating method |
| US11448175B1 (en) | 2021-06-03 | 2022-09-20 | General Electric Company | Fuel nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464865B (en) | 2017-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105464865A (en) | Diesel fuel injector with double fuel injection nozzles | |
| CN104018969B (en) | Piezoelectricity controls pressure accumulation type voltage regulation fuel injector | |
| CN104018965B (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN103244322B (en) | Dual-fuel electromagnetic and piezoelectric control type injector | |
| CN102434346A (en) | Low oil-return type electromagnetic control oil sprayer | |
| CN115387943B (en) | Multi-injection mode electric control fuel injector suitable for high-power diesel engine | |
| CN105781839A (en) | Double-needle-valve electronically-controlled fuel injector with double layers of orifices | |
| CN103644057A (en) | Fuel injector capable of injecting fuel to engine quantitatively at fixed time in controllable manner | |
| CN203925849U (en) | Piezoelectricity is controlled pressure accumulation constant-voltage type oil sprayer | |
| CN205478036U (en) | Two fuel sprayer sprayers of diesel engine | |
| CN105484916A (en) | Double-layer spray hole oil atomizer of diesel engine | |
| CN103244324B (en) | Piezoelectric electronic-control fuel injector | |
| CN106593726A (en) | Resonant electrically controlled oil injector with oil fed through double paths | |
| CN203627055U (en) | Oil sprayer capable of controlling sprayed fuel oil provided for engine in fixed time and quantity | |
| CN103306871B (en) | A kind of Hydraulically-assistquick quick on-off electrical control oil injector for diesel engine and method thereof | |
| CN101963119B (en) | Piezoelectric high-pressure common rail electronic control injector | |
| CN211819757U (en) | Fuel injection unit | |
| CN103925136A (en) | Fuel injector with solenoid valve mounted on side | |
| CN104196664A (en) | Conical surface sealed high pressure common rail fuel injector controller | |
| CN102840075A (en) | Fluid ejector having rear end speed reshaping ability | |
| CN203925840U (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN206668415U (en) | A kind of pump rail valve ozzle novel diesel spraying system used for diesel engine | |
| CN206972411U (en) | Gas-liquid mixing ejector | |
| CN206617265U (en) | Two-way oil-feed resonant mode electric-controlled fuel injector | |
| CN202325954U (en) | Low-fuel return type piezoelectric control fuel injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20190113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |