CN204783288U - Car double fuel guide rail multi -ported valve - Google Patents
Car double fuel guide rail multi -ported valve Download PDFInfo
- Publication number
- CN204783288U CN204783288U CN201520444921.7U CN201520444921U CN204783288U CN 204783288 U CN204783288 U CN 204783288U CN 201520444921 U CN201520444921 U CN 201520444921U CN 204783288 U CN204783288 U CN 204783288U
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- Prior art keywords
- hole
- guide rail
- fuel
- housing
- spring
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- Withdrawn - After Issue
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Classifications
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a car double fuel guide rail multi -ported valve belongs to car double fuel guide rail auto -change over device field, which comprises a housin, the case piston, there is the through -hole in the casing, be equipped with mobilizable case piston in the through -hole, through -hole two is sealed, a plurality of guide rail mounting holes that link up with the both ends through -hole are seted up to two ends of casing, a plurality of guide rail mounting holes with one end have a perfect understanding each other, still open the sprayer mounting hole that link up with through -hole middle part on the casing, install the solenoid valve in the casing, solenoid valve control case piston, when the solenoid valve cold, the case piston is in the normality position, when solenoid valve powered on, case piston activity to switching position. This device can be realized reliably switching between two kinds or the above fuel guide rail, make that two sets of same sprayers of guide rails sharing, leakproofness are good, the operation of case piston rapidly and do not float, when switching few compounding, can not arouse shake or flame -out when the vehicle starts the difficulty and switches, be suitable for extensively.
Description
Technical field
The utility model relates to a kind of Double-fuel guide rail fuel changing-over device, particularly a kind of Double-fuel guide rail multiple-way valve.
Background technique
Along with the concern to vehicle economy and alternative fuel Economy, the feature of environmental protection, automaker and Market for refitting turn to more economically, Cleaning Equipment, to raise the efficiency and energy-conserving and environment-protective, so effective use of alternative fuel or dual-purpose fuel or pluralities of fuel, need the distinct configuration of traditional fuel motor associated components, time wherein for changing two kinds or more fuel charge, need a kind of good COMM communication.General single track single spraying system of the prior art, by a set of methyl alcohol pipelines in parallel such as solenoid valves before the spray rail and sparger of former automobile, structure is simple, repacking aspect, but can not realize between gasoline-methyl alcohol changing completely, cause methyl alcohol cold start-up difficulty, and wherein a kind of flow in fuel, to another kind of fuel, causes the two or more fuel of mixing in fuel tank.Patent 201320765146.6 dual fuel injection device, although solve the problem changed completely between gasoline-methyl alcohol, but but there is following defect: one is the mistake oil mass that the problems such as the blocking of filter screen after the filter precision of filter screen or Long-Time Service can affect fuel, and the fuel directly affecting sparger sprays and supply, two is in motor fuel long-term work, and the gap between piston and piston in cylinder wall is too little, and the minute impurities of fuel can cause the flexibility of piston, thus affects the seal of wherein fuel, causes the mutual mixing of fuel, three is when piston moves to a side, one side's fuel pressure can keep in a period of time, cause piston cannot be airtight and cause fuel to flow mixing to the opposing party, two kinds of fuel all can be mixed in container or fuel tank mutually, if too much at the methyl alcohol of petrol tank mixing, can cause vehicle startup and to motor, the etching problem of pipeline, if the gasoline cold start-up mixing too much methyl alcohol is on the other hand too poor numerous, when engine temperature cannot reach methyl alcohol best combustion temperature, bad or the incomplete methyl alcohol of fuel can penetrate into cylinder body rare Xi lubricating oil by the gap between piston ring and cylinder bore wall, the premature abrasion of motor is caused to cause engine damage.Four is that the combined amount of two kinds of fuel in valve is relatively many, and motor can be caused when fuel is changed mutually to shake.Five is at three-way valve top pipe laying or guide rail, adds rail height, relatively little between compact type vehicle engine air, can affect and install and use, and installing vehicle can reduce; Six when being two kinds of Fuel switchings, because side's pressure can keep certain hour, cause switching time long or be difficult to switch, and vehicle shake, even flame-outly cause driving safety.Chinese patent application 2015201169426 Double-fuel guide rail multiple-way valve, adopt moveable ball valve core, through hole two ends are provided with two end face cylinder plugs, built-in channel is established in end face cylinder plug, end face cylinder plug surface has the oil inlet hole connected with this built-in channel, although this valve solves the reliable switching between two kinds of automotive fuels, line seal problem, ball valve core piston effectively reduces the heterodromous resistance of valve core piston, not drift, but, its requirement on machining accuracy is very high, two end face cylinder plug structures are complicated, cost is high, and when Fuel switching, the pressure advanced by fuel completely makes ball valve core move switching, when wherein fuel pressure is higher than another side fuel pressure on one side, because one side pressure pressure release is slow, ball valve cannot carry out airtight to another side fuel the short time, may cause during switching and shake or cause engine misses, affect driving safety.Owing to using a kind of fuel in long-time, ball valve possibly cannot be returned to gasoline state, and the alternative fuel retained in valve is as many in methyl alcohol, difficulty in starting may be caused maybe cannot to start when next day.
Summary of the invention
The purpose of this utility model be to provide a kind ofly can realize rapidly, reliably switching between two kinds or more automotive fuels, line seal is good, the not drift of mixed valve core piston, retain the less Double-fuel guide rail multiple-way valve that can not cause vehicle difficulty in starting next day, working stability of fuel ratio in valve, make two kinds or more fuel as methyl alcohol, gasoline, a sparger can be shared and reliable performance for motor feed.
The utility model proposes a kind of Double-fuel guide rail multiple-way valve, comprise housing, valve core piston, through hole is had in housing, moveable valve core piston is provided with in through hole, through hole two seals, housing two end offers multiple guide rails assembling hole through with the two ends of through hole, multiple guide rails assembling holes with one end are mutually through and axis is positioned at same plane, housing also has with through hole in the middle part of through sparger mounting hole, in housing, solenoid valve is installed, electromagnetic valve valve core piston, when solenoid valve no electric circuit, valve core piston is in the normal state position, each guide rails assembling hole of through hole one end and sparger mounting hole mutual conduction, when solenoid valves, valve core piston is movable to switching position, mutual conduction between each guide rails assembling hole of the through hole the other end and sparger mounting hole.
Preferably, housing valve core piston comprises the large uncovered valve cylinder of two ends caliber and is positioned at the little connecting tube of middle caliber, and uncovered valve cylinder is connected by conically shaped with connecting tube, uncovered valve cylinder inner chamber and connecting tube endoporus through, is provided with oil through in the middle of connecting tube endoporus; One end of housing is provided with electromagnetic valve coil, and on the conically shaped of away from electromagnetic valve coil, cover is filled with spring, and spring one end compresses uncovered valve cylinder, and spring the other end holddown spring stroke baffle ring, spring travel baffle ring is fixed on through-hole wall.
Described oil through is one, opens in the middle of connecting tube, or oil through is two, is provided with dividing plate between two oil throughs.
Described valve core piston comprises the cock body at two ends and middle connecting tube, the consent of through cock body, connecting tube is provided with in valve core piston, cock body there is the cylndrical surface of matching with through-hole wall, the exterior edge face of cock body has pod apertures, pod apertures communicates with consent, the outer end of two cock bodys is also respectively equipped with protruding plug, housing two end inwall is correspondingly provided with the plug counterbore of two indents, and plug counterbore is with guide rails assembling hole right angle intersection and be communicated with; Described housing left end is provided with electromagnetic valve coil, and on the plug on the left side, cover is filled with spring, and spring one end compresses the exterior edge face of left side cock body, and the spring the other end compresses the left end inwall of housing.
The exterior edge face of described cock body is the conical surface, and described plug is cambered surface plug.
Described valve core piston comprises the chock at two ends and middle connecting rod, housing two end inwall is provided with the chock counterbore adapted with cock body profile, overcurrent plate is installed with in the through hole of housing, overcurrent plate has multiple flowing hole, and overcurrent plate is connected spring seat, and spring seat is built with spring, the bottom outlet allowing connecting rod pass is provided with at the bottom of spring seat, spring seat mouth is towards side chock, and this side chock is connected to spring pressure cylinder, and spring pressure cylinder and spring seat are tightly connected movably; Housing two ends are also provided with attachment hole, and guide rails assembling hole is communicated with chock counterbore by attachment hole.
Described solenoid valve is coil type or Hall-type solenoid valve; Described sparger mounting hole axis is vertical with each guide rails assembling axially bored line.
Some guide rails assembling holes are divided into through hole two ends symmetrically, and the guide rails assembling hole being positioned at same one end is one or more, respectively fuel rail is housed in each guide rails assembling hole.
Described through hole two ends are respectively provided with two guide rails assembling holes, and multiple Double-fuel guide rail multiple-way valve can be contained on each air inlet single tube of automotive air intake menifold respectively, and the fuel rail between two adjacent two multiple-way valves is interconnected by connecting tube.
The guide rails assembling axially bored line being positioned at same one end is positioned at same plane.
The beneficial effects of the utility model are: adopt the magnetic attraction force of solenoid valve to accelerate the motion of valve core piston, switch rapider, can the short time carry out airtight to one side fuel, the multiple-way valve avoiding Purely mechanical switches the defect shaking or cause engine misses when easily causing switching slowly; And after have employed the working state of setting, during switching position when its normal orientation when namely valve core piston is in solenoid valve no electric circuit or solenoid valves, valve core piston is because of under the dual-pressure effect of electromagnetic field suction and Fuel Petroleum hydraulic coupling or spring pressure and replacement fuel pressure, not drift, working stability; After vehicle is flame-out, solenoid valve no electric circuit, piston is back into its normal orientation by spring, namely uses the state of gasoline, avoids the multiple-way valve of Purely mechanical to cause next day difficulty in starting maybe cannot start phenomenon because retaining alternative fuel such as methyl alcohol in valve; Can be contained in respectively in rows on each air inlet single tube of automotive air intake menifold, guide rail between two adjacent Double-fuel guide rail multiple-way valves is interconnected by connecting tube, both the effect of the sparger fuel feeding into the double fuel guide rail multiple-way valve on this air inlet single tube and correspondence thereof had been played, play again the effect into the double fuel guide rail multiple-way valve transmission fuel on other air inlet single tubes, even if the function of the guide rail in orthodox car fuel system, rail brackets, Fuel switching valve has all been integrated on this double fuel guide rail multiple-way valve, serve the effect reducing costs, save installing space; Adopt the mode such as Quick-action type flexible pipe or FERRULETYPE hard tube to be connected between split type multiple valves, the installation of various vehicle can be widely used in.Valve core piston is dumbbell shape, comprise the large uncovered valve cylinder of two ends caliber and intermediate connection tube composition, uncovered valve cylinder and housing through-hole are sealed and matched, and are Cylindrical Surfaces Contacts, more balance in reciprocating movement, and sealability compared with ball valve core and through hole linear contact lay and Yan Yaogeng is reliable; Through-hole diameter is consistent, does not need segmentation processing, and end face cylinder plug is without special constructions such as perforates, and structure is simple, and processing cost is low; Utilize the magnetic force of solenoid valve that valve core piston fast reciprocating is moved, spool switch rapidly, motion is more reliable, than the hydraulic pressure or atmospheric pressure of depending merely on uid feed fuel promote spool switch faster, more put in place, work more reliable;
In a word, the utility model can realize promptly, reliably switching between two kinds of automotive fuels, makes two kinds or more fuel as methyl alcohol and gasoline or ethanol and gasoline, a sparger can be shared and reliable performance be motor feed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is a direction view of the utility model Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment two;
Fig. 4 is the structural representation of the utility model embodiment three;
Fig. 5 is assembly structure schematic diagram of the present utility model
Mark: housing 1, through hole 2, guide rails assembling hole 3A.3B, sparger mounting hole 4, solenoid valve 5, uncovered valve cylinder 6, connecting tube 7.702, oil through 8, spring 9.902.903, stroke baffle ring 10, dividing plate 11, cock body 12, consent 13, pod apertures 14, plug 15, plug counterbore 16, the left end inwall 17 of housing, the conical surface 18, connecting rod 19, chock counterbore 20, overcurrent plate 21, flowing hole 22, spring seat 23, bottom outlet 24, spring pressure cylinder 25, attachment hole 26, chock 27, fuel rail 28.
Embodiment
Embodiment one
With reference to Fig. 1, Fig. 2, the present embodiment comprises housing 1, valve core piston, through hole 2 is had in housing, moveable valve core piston is provided with in through hole 2, through hole two seals, housing two end offers multiple guide rails assembling hole 3A through with the two ends of through hole, 3B, multiple guide rails assembling holes with one end are mutually through and axis is positioned at same plane, housing 1 also has with through hole in the middle part of through sparger mounting hole 4, solenoid valve 5 is installed in housing, solenoid valve 5 controls valve core piston, when solenoid valve 5 no electric circuit, valve core piston is in the normal state position, each guide rails assembling hole 3A of through hole 2 one end and sparger mounting hole 4 mutual conduction, when solenoid valve 5 is energized, valve core piston is movable to switching position, mutual conduction between each guide rails assembling hole 3B of through hole 2 the other end and sparger mounting hole 4.Housing valve core piston comprises the large uncovered valve cylinder of two ends caliber 6 and is positioned at the little connecting tube 7 of middle caliber, and uncovered valve cylinder 6 is connected by conically shaped 8 with connecting tube 7, uncovered valve cylinder 6 inner chamber and connecting tube 7 endoporus through, is provided with oil through 8 in the middle of connecting tube endoporus; One end of housing is provided with electromagnetic valve coil, and on the conically shaped of away from electromagnetic valve coil, cover is filled with spring 9, and spring 9 one end compresses uncovered valve cylinder 6, and spring the other end holddown spring stroke baffle ring 10, spring travel baffle ring 10 is fixed on through hole 2 inwall.Described oil through 8 has two, is provided with dividing plate 11 between two oil throughs.Guide rails assembling hole is built with fuel rail 28.
Described solenoid valve 5 is coil type or Hall-type solenoid valve etc.; Described sparger mounting hole 4 axis and each guide rails assembling hole 3A, 3B axes normal.With reference to Fig. 5, described through hole 2 two ends are respectively provided with two guide rails assembling holes, and multiple Double-fuel guide rail multiple-way valve can be contained on each air inlet single tube of automotive air intake menifold respectively, and the fuel rail 28 between two adjacent two multiple-way valves is interconnected by connecting tube.
Embodiment two
With reference to Fig. 3, the present embodiment is identical with principle with the agent structure of embodiment one, but the concrete structure of valve core piston is different, described valve core piston comprises the cock body 12 at two ends and middle connecting tube 702, through cock body is provided with in valve core piston, the consent 13 of connecting tube, cock body 12 there is the cylndrical surface of matching with through-hole wall, the exterior edge face of cock body has pod apertures 14, pod apertures 14 communicates with consent 13, the outer end of two cock bodys 12 is also respectively equipped with protruding plug 15, housing 1 two end inwall is correspondingly provided with the plug counterbore 16 of two indents, plug counterbore 16 and guide rails assembling hole 3A, 3B right angle intersection is also communicated with, described housing 1 left end is provided with electromagnetic valve coil, and on the plug 15 on the left side, cover is filled with spring 902, the exterior edge face of the compression left side, spring 902 one end cock body, and the spring the other end compresses the left end inwall 17 of housing.The exterior edge face of described cock body is the conical surface 18, and this exterior edge face is set as the conical surface and is easy to pod apertures 14 by fuel introduction, and described plug 15 is cambered surface plug.
Embodiment three
With reference to Fig. 4, the present embodiment is identical with principle with the agent structure of embodiment one, but the concrete structure of valve core piston is different, described valve core piston comprises the chock 27 at two ends and middle connecting rod 19, housing two end inwall is provided with the chock counterbore 20 adapted with cock body profile, overcurrent plate 21 is installed with in the through hole 2 of housing, overcurrent plate there is multiple flowing hole 22, overcurrent plate 21 is connected spring seat 23, spring seat 23 is built with spring 903, the bottom outlet 24 allowing connecting rod pass is provided with at the bottom of spring seat, spring seat mouth is towards side chock 1203, this side chock is connected to spring pressure cylinder 25, spring pressure cylinder 25 and spring seat 23 are tightly connected movably, housing two ends are also provided with attachment hole 26, and guide rails assembling hole 7 is communicated with chock counterbore 20 by attachment hole.
During vehicle cold start-up, solenoid valve 5 no electric circuit, valve core piston is in the normal state position, and gasoline enters sparger by the path of guide rails assembling hole 3A and sparger mounting hole 4, and motor is gasoline enable mode.Motor car engine condition value such as temperature, pressure, rotating speed etc. reach setting value or compulsory mode, substitute fuel oil pump, as unlatchings such as methyl alcohol oil pumps, solenoid valves, valve core piston moves to the switching position of opposite side, substitute fuel is by being path between guide rails assembling hole 3B and sparger mounting hole 4, and substitute fuel such as methyl alcohol enters sparger, and motor is substitute fuel enable mode.Motor is under some specific environment, as worked as substitute fuel without pressure or without substitute fuel, or substitute fuel is depleted to setting value, this setting value is obtained by pressure transducer and liquid level sensor, or under the environment such as the short circuit of other control unit ECU perception, open circuit, air inlet pressure be abnormal, solenoid valve 5 power-off, it is enable that motor is directly switch to gasoline mode.
Claims (10)
1. a Double-fuel guide rail multiple-way valve, comprise housing, valve core piston, through hole is had in housing, moveable valve core piston is provided with in through hole, through hole two seals, it is characterized in that, housing two end offers multiple guide rails assembling hole through with the two ends of through hole, multiple guide rails assembling holes with one end are mutually through, housing also has with through hole in the middle part of through sparger mounting hole, in housing, solenoid valve is installed, electromagnetic valve valve core piston, when solenoid valve no electric circuit, valve core piston is in the normal state position, each guide rails assembling hole of through hole one end and sparger mounting hole mutual conduction, when solenoid valves, valve core piston is movable to switching position, mutual conduction between each guide rails assembling hole of the through hole the other end and sparger mounting hole.
2. Double-fuel guide rail multiple-way valve according to claim 1, it is characterized in that, housing valve core piston comprises the large uncovered valve cylinder of two ends caliber and is positioned at the little connecting tube of middle caliber, uncovered valve cylinder is connected by conically shaped with connecting tube, uncovered valve cylinder inner chamber and connecting tube endoporus through, is provided with oil through in the middle of connecting tube endoporus; One end of housing is provided with electromagnetic valve coil, and on the conically shaped of away from electromagnetic valve coil, cover is filled with spring, and spring one end compresses uncovered valve cylinder, and spring the other end holddown spring stroke baffle ring, spring travel baffle ring is fixed on through-hole wall.
3. Double-fuel guide rail multiple-way valve according to claim 2, it is characterized in that, described oil through is one, opens in the middle of connecting tube, or oil through is two, is provided with dividing plate between two oil throughs.
4. Double-fuel guide rail multiple-way valve according to claim 1, it is characterized in that, described valve core piston comprises the cock body at two ends and middle connecting tube, the consent of through cock body, connecting tube is provided with in valve core piston, cock body there is the cylndrical surface of matching with through-hole wall, the exterior edge face of cock body has pod apertures, pod apertures communicates with consent, the outer end of two cock bodys is also respectively equipped with protruding plug, housing two end inwall is correspondingly provided with the plug counterbore of two indents, plug counterbore is with guide rails assembling hole right angle intersection and be communicated with; Described housing left end is provided with electromagnetic valve coil, and on the plug on the left side, cover is filled with spring, and spring one end compresses the exterior edge face of left side cock body, and the spring the other end compresses the left end inwall of housing.
5. Double-fuel guide rail multiple-way valve according to claim 4, is characterized in that, the exterior edge face of described cock body is the conical surface, and described plug is cambered surface plug.
6. Double-fuel guide rail multiple-way valve according to claim 1, it is characterized in that, described valve core piston comprises the chock at two ends and middle connecting rod, housing two end inwall is provided with the chock counterbore adapted with cock body profile, overcurrent plate is installed with in the through hole of housing, overcurrent plate there is multiple flowing hole, overcurrent plate is connected spring seat, spring seat is built with spring, the bottom outlet allowing connecting rod pass is provided with at the bottom of spring seat, spring seat mouth is towards side chock, and this side chock is connected to spring pressure cylinder, and spring pressure cylinder and spring seat are tightly connected movably; Housing two ends are also provided with attachment hole, and guide rails assembling hole is communicated with chock counterbore by attachment hole.
7. Double-fuel guide rail multiple-way valve according to claim 1, is characterized in that, described solenoid valve is coil type or Hall-type solenoid valve; Described sparger mounting hole axis is vertical with each guide rails assembling axially bored line or become angle.
8. Double-fuel guide rail multiple-way valve according to claim 1, is characterized in that, some guide rails assembling holes are divided into through hole two ends symmetrically, and the guide rails assembling hole being positioned at same one end is one or more, respectively fuel rail is housed in each guide rails assembling hole.
9. Double-fuel guide rail multiple-way valve according to claim 8, it is characterized in that, described through hole two ends are respectively provided with two or more guide rails assembling hole, multiple Double-fuel guide rail multiple-way valve can be contained on each air inlet single tube of automotive air intake menifold respectively, and the fuel rail between two adjacent two multiple-way valves is interconnected by connecting tube.
10. Double-fuel guide rail multiple-way valve according to claim 8, is characterized in that, the guide rails assembling axially bored line being positioned at same one end is positioned at same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444921.7U CN204783288U (en) | 2015-06-25 | 2015-06-25 | Car double fuel guide rail multi -ported valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444921.7U CN204783288U (en) | 2015-06-25 | 2015-06-25 | Car double fuel guide rail multi -ported valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783288U true CN204783288U (en) | 2015-11-18 |
Family
ID=54523351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520444921.7U Withdrawn - After Issue CN204783288U (en) | 2015-06-25 | 2015-06-25 | Car double fuel guide rail multi -ported valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204783288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020034A (en) * | 2015-06-25 | 2015-11-04 | 胡松平 | Automobile double fuel guide rail multiport valve |
| CN107218158A (en) * | 2017-07-25 | 2017-09-29 | 上官秀丰 | A kind of engine fuel injection device |
| CN108495988A (en) * | 2016-01-29 | 2018-09-04 | Mtu 腓特烈港有限责任公司 | The method of dual fuel injector, the internal combustion engine with this dual fuel injector and this internal combustion engine of operation |
-
2015
- 2015-06-25 CN CN201520444921.7U patent/CN204783288U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020034A (en) * | 2015-06-25 | 2015-11-04 | 胡松平 | Automobile double fuel guide rail multiport valve |
| CN105020034B (en) * | 2015-06-25 | 2017-08-11 | 胡松平 | Double-fuel guide rail multiple-way valve |
| CN108495988A (en) * | 2016-01-29 | 2018-09-04 | Mtu 腓特烈港有限责任公司 | The method of dual fuel injector, the internal combustion engine with this dual fuel injector and this internal combustion engine of operation |
| CN108495988B (en) * | 2016-01-29 | 2021-12-03 | Mtu 腓特烈港有限责任公司 | Dual fuel injector, internal combustion engine having such a dual fuel injector and method for operating such an internal combustion engine |
| CN107218158A (en) * | 2017-07-25 | 2017-09-29 | 上官秀丰 | A kind of engine fuel injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170811 |