CN103061938B - A kind of Novel dual-fuel rail injector assembly - Google Patents
A kind of Novel dual-fuel rail injector assembly Download PDFInfo
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- CN103061938B CN103061938B CN201310020798.1A CN201310020798A CN103061938B CN 103061938 B CN103061938 B CN 103061938B CN 201310020798 A CN201310020798 A CN 201310020798A CN 103061938 B CN103061938 B CN 103061938B
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Abstract
The present invention relates to the injector assembly that engine high pressure common-rail injector assembly, particularly single track double fuel passage have two kinds of fuel to spray separately or independently spray separately simultaneously.A kind of Novel dual-fuel rail injector assembly, comprise oily rail, alcohols component of oil sprayer and oils component of oil sprayer, oily rail is mutually airtight double layer construction; Alcohols component of oil sprayer is connected with a Rotating fields of oily rail respectively by its one end with oils component of oil sprayer, and its other end is by respective spray orifice and combustion chamber.The invention solves in prior art and adopt two oily rail to arrange and the defect that motor takes up room greatly, fuel bulk range is long and fuel consumption is large that causes; Two kinds of fuel of the present invention not only can spray separately but also can spray simultaneously; The present invention has stopped the large problem of engine fuel consumption; The present invention, when engine low-temperature starting-up, adopts full oil fuel, switches to Aalcohols fuel, efficiently solve the problem of alcohol engine cold starting difficulty after normal work.
Description
Technical field
The present invention relates to the injector assembly that engine high pressure common-rail injector assembly, particularly single track double fuel passage have two kinds of fuel to spray separately or independently spray separately simultaneously.
Background technique
Alcohol engine cold-starting is comparatively difficult, and the method that prior art adopts usually is:
1, adopt the pure gasoline of two oily rails to start, after engine work, then switch to Aalcohols fuel, the layout of two oily rail had both added taking up room of motor, also increases the distance that fuel sprays (to firing chamber), fuel consumption is increased.
2, heating equipment is increased, auxiliary starter.But the method makes motor self consume energy to be increased, and increases the fuel consumption of motor equally.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of Novel dual-fuel rail injector assembly, solves in prior art and adopts two oily rail to arrange and the defect that motor takes up room greatly, fuel bulk range is long and fuel consumption is large that causes.
To achieve these goals, the invention provides following technological scheme:
A kind of Novel dual-fuel rail injector assembly, comprising:
Oil rail, described oily rail is mutually airtight double layer construction, and described double layer construction is used for carrying Aalcohols fuel and oil fuel respectively;
Alcohols component of oil sprayer, described alcohols component of oil sprayer one end is connected with a Rotating fields of described oily rail, the other end is by Aalcohols fuel spray orifice and combustion chamber, and the Aalcohols fuel in described oily rail enters described firing chamber by a Rotating fields of described oily rail and described alcohols component of oil sprayer through described Aalcohols fuel spray orifice successively;
Oils component of oil sprayer, described oils component of oil sprayer one end is connected with another Rotating fields of described oily rail, the other end is by oil fuel spray orifice and combustion chamber, and the oil fuel in described oily rail enters described firing chamber by another Rotating fields of described oily rail and described oils component of oil sprayer through described oil fuel spray orifice successively.
Preferably, described alcohols component of oil sprayer comprises the needle of Aalcohols fuel passage and belt coil armature, described needle is positioned at described Aalcohols fuel passage, described needle one end has spring mutually, the other end is connected with valve ball, described valve ball is butted on described Aalcohols fuel spray orifice mutually, and described needle has matched electromagnetic coil; Or
Described oils component of oil sprayer comprises the needle of oil fuel passage and belt coil armature, described needle is positioned at described oil fuel passage, described needle one end has spring mutually, the other end is connected with valve ball, described valve ball is butted on described oil fuel spray orifice mutually, and described needle has matched electromagnetic coil.
Preferably, described oils component of oil sprayer comprises the valve collar of oil fuel passage and belt coil armature, described valve collar is positioned at described oil fuel passage, described valve collar one end has spring mutually, the other end is connected with valve circle, described valve circle is butted on described oil fuel spray orifice mutually, and described valve collar has matched electromagnetic coil; Or
Described alcohols component of oil sprayer comprises the valve collar of Aalcohols fuel passage and belt coil armature, described valve collar is positioned at described Aalcohols fuel passage, described valve collar one end has spring mutually, the other end is connected with valve circle, described valve circle is butted on described Aalcohols fuel spray orifice mutually, and described valve collar has matched electromagnetic coil.
Preferably, it is outside that described alcohols component of oil sprayer is sheathed on described oils component of oil sprayer, or
It is outside that described oils component of oil sprayer is sheathed on described alcohols component of oil sprayer.
Preferably, described injector assembly also comprises:
Filter screen, described filter screen is arranged on described alcohols component of oil sprayer and described oils component of oil sprayer respectively, and described filter screen is used for the Aalcohols fuel or oil fuel that enter described alcohols component of oil sprayer or described oils component of oil sprayer to filter.
Preferably, described valve ball and described valve circle have matched valve seat respectively.
Preferably, the shape of described oil fuel spray orifice is ring-type.
Preferably, described oily rail is made up of upper strata oil rail and lower floor's oil rail;
Described upper strata oil rail has the section of stretching out, described lower floor oil rail has flared section, described in the section of stretching out surrounded to downward-extension by described flared section;
Described in described upper strata oil rail passes through, the section of stretching out communicates with described oils component of oil sprayer or described alcohols component of oil sprayer;
Described lower floor oil rail is communicated with described alcohols component of oil sprayer or described oils component of oil sprayer by described flared section.
Preferably, described alcohols component of oil sprayer connects with the section of stretching out, described oils component of oil sprayer connects with flared section, is sealed between described flared section and described alcohols component of oil sprayer by seal ring, is sealed between described alcohols component of oil sprayer and the described section of stretching out by seal ring.
Preferably, described alcohols component of oil sprayer is overall is cylindrical shape with described oils component of oil sprayer entirety.
At least there is following technique effect in the embodiment of the present invention:
1) oily rail of the present invention is mutually airtight double layer construction, described double layer construction is used for carrying Aalcohols fuel and oil fuel respectively, oily rail of the present invention is a kind of single track double fuel passage, solves in prior art and adopts two oily rail to arrange and the motor that causes takes up room greatly, the distance of fuel injection (to firing chamber) and the large defect of fuel consumption.
2) Aalcohols fuel in the present invention's oil rail enters described firing chamber by a Rotating fields of described oily rail and described alcohols component of oil sprayer through described Aalcohols fuel spray orifice successively; Oil fuel in the present invention's oil rail enters described firing chamber by another Rotating fields of described oily rail and described oils component of oil sprayer through described oil fuel spray orifice successively, thus makes two kinds of fuel not only can spray separately but also can independently spray separately simultaneously.
3) the present invention abandons in prior art increases the method that heating equipment carrys out auxiliary starter, has stopped the problem that engine fuel consumption is large.
4) the present invention is when engine low-temperature starting-up, adopts full oil fuel, switches to Aalcohols fuel, efficiently solve the problem of alcohol engine cold starting difficulty after normal work.
Accompanying drawing explanation
Fig. 1 is the sectional view of dual-fuel rail injector assembly of the present invention;
Number in the figure is as follows:
101-Aalcohols fuel spray orifice, 102-Aalcohols fuel passage, 103-needle, 104-first spring, 105-valve ball, 106-first electromagnetic coil, 107-first filter screen, 108-first valve seat, 109-upper strata oil rail, the 110-section of stretching out, 111-first seal ring, 112-the 3rd seal ring;
201-oil fuel spray orifice, 202-oil fuel passage, 203-valve collar, 204-second spring, 205-valve circle, 206-second electromagnetic coil, 207-second filter screen, 208-second valve seat, 209-lower floor oil rail, 210-flared section, 211-second seal ring;
300-alive plug;
Arrow A-ol class A fuel A flows to schematic diagram;
Arrow B-oil fuel flows to schematic diagram.
Label identical in all of the figs indicates similar or corresponding feature or function
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with accompanying drawing, specific embodiment is described in detail.
Embodiments provide a kind of Novel dual-fuel rail injector assembly, can arrange multiple Novel dual-fuel rail injector assembly of the present invention within the engine, described Novel dual-fuel rail injector assembly comprises:
Oil rail, described oily rail is mutually airtight double layer construction, and described double layer construction is used for carrying Aalcohols fuel and oil fuel respectively;
Alcohols component of oil sprayer, described alcohols component of oil sprayer one end is connected with a Rotating fields of described oily rail, the other end is by Aalcohols fuel spray orifice 101 and combustion chamber, and the Aalcohols fuel in described oily rail enters described firing chamber by a Rotating fields of described oily rail and described alcohols component of oil sprayer through described Aalcohols fuel spray orifice 101 successively;
Oils component of oil sprayer, described oils component of oil sprayer one end is connected with another Rotating fields of described oily rail, the other end is by oil fuel spray orifice 201 and combustion chamber, and the oil fuel in described oily rail enters described firing chamber by another Rotating fields of described oily rail and described oils component of oil sprayer through described oil fuel spray orifice 201 successively.
Oily rail of the present invention is a kind of single track double fuel passage, solves in prior art and adopts two oily rail to arrange and the motor that causes takes up room greatly, the distance of fuel injection (to firing chamber) and the large defect of fuel consumption; Two kinds of fuel of the present invention not only can spray separately but also can independently spray separately simultaneously; The present invention abandons in prior art increases the method that heating equipment carrys out auxiliary starter, has stopped the problem that engine fuel consumption is large; The present invention, when engine low-temperature starting-up, adopts full oil fuel, switches to Aalcohols fuel, efficiently solve the problem of alcohol engine cold starting difficulty after normal work.
Fig. 1 is the sectional view of dual-fuel rail injector assembly of the present invention, as shown in Figure 1, described alcohols component of oil sprayer comprises the needle 103 of Aalcohols fuel path 10 2 and belt coil armature, described needle 103 is positioned at described Aalcohols fuel path 10 2, described needle 103 one end has the first spring 104 mutually, the other end is connected with valve ball 105, and described valve ball 105 is butted on described Aalcohols fuel spray orifice 101 mutually, and described needle 103 has matched the first electromagnetic coil 106.
Described oils component of oil sprayer comprises the valve collar 203 of oil fuel passage 202 and belt coil armature, described valve collar 203 is positioned at described oil fuel passage 202, described valve collar 203 one end has the second spring 204 mutually, the other end is connected with valve circle 205, described valve circle 205 is butted on described oil fuel spray orifice 201 mutually, and described valve collar 203 has matched the second electromagnetic coil 206.
Described valve ball 105 has matched the first valve seat 108, and described valve circle 205 has matched the second valve seat 208.
In the present embodiment, described alcohols component of oil sprayer is overall is cylindrical shape with described oils component of oil sprayer entirety.It is outside that described oils component of oil sprayer is sheathed on described alcohols component of oil sprayer, and the shape of described oil fuel spray orifice 201 is ring-type.Described alcohols component of oil sprayer can be sheathed on described oils component of oil sprayer in other embodiments outside.Arrow A represents Aalcohols fuel and flows to schematic diagram, and represented by arrow B oil fuel flows to schematic diagram.
In the present embodiment, described oily rail is made up of upper strata oil rail 109 and lower floor's oil rail 209, and described upper strata oil rail 109 has the section of stretching out 110, described lower floor oil rail 209 has flared section 210, described in the section of stretching out 110 surrounded to downward-extension by described flared section 210; Described in described upper strata oil rail 109 passes through, the section of stretching out 110 communicates with described alcohols component of oil sprayer; Described lower floor oil rail 209 is communicated with described oils component of oil sprayer by described flared section 210.
Described alcohols component of oil sprayer connects with the described section of stretching out 110, described oils component of oil sprayer connects with described flared section 210, sealed by the first seal ring 110 between described alcohols component of oil sprayer and the described section of stretching out 110, sealed by the second seal ring 211 between described flared section 210 and described alcohols component of oil sprayer.Described injector assembly also comprises filter screen, described filter screen is arranged on described alcohols component of oil sprayer and described oils component of oil sprayer respectively, concrete, the section of stretching out 110 described in described first filter screen 107 is arranged at and described Aalcohols fuel path 10 2 connecting part, described second filter screen 207 is arranged at described flared section 210 and described oil fuel passage 202 connecting part, and described filter screen is used for the Aalcohols fuel or oil fuel that enter described alcohols component of oil sprayer or described oils component of oil sprayer to filter.
As shown by arrow A, Aalcohols fuel enters Aalcohols fuel path 10 2 by upper strata oil rail 109, when ECU control the first electromagnetic coil 106 trigger time, needle 103 and the valve ball 105 of belt coil armature are upwards picked up by magnetic force, then the Aalcohols fuel of high pressure sprays into firing chamber by Aalcohols fuel spray orifice 101, when ECU control the first electromagnetic coil 106 do not trigger time, the needle 103 of belt coil armature and valve ball 105 close Aalcohols fuel spray orifice 101 under the power of doing of the first spring 104 elastic force, stop the injection of Aalcohols fuel, Aalcohols fuel spray orifice 101 can be one or more.
As shown by arrow B, the ejector principle of oil fuel and the ejector principle of above-mentioned Aalcohols fuel similar, repeat no more herein.
Analyze known according to above, by the control of ECU and first spring 104, second spring 204 pairs of needles 103 and valve collar 203, spray while the independent injection of Aalcohols fuel and oil fuel and two kinds of fuel can be realized.When spraying at the same time, owing to containing more oxygen in Aalcohols fuel, oxygen element serves combustion-supporting effect in fuel combustion process, and the thermal efficiency that Aalcohols fuel and oil fuel are sprayed simultaneously is compared with the independent injection higher than Aalcohols fuel or oil fuel.
As from the foregoing, the embodiment of the present invention has following advantage:
1) oily rail of the present invention is mutually airtight double layer construction, described double layer construction is used for carrying Aalcohols fuel and oil fuel respectively, oily rail of the present invention is a kind of single track double fuel passage, solves in prior art and adopts two oily rail to arrange and the motor that causes takes up room greatly, the distance of fuel injection (to firing chamber) and the large defect of fuel consumption.
2) Aalcohols fuel in the present invention's oil rail enters described firing chamber by a Rotating fields of described oily rail and described alcohols component of oil sprayer through described Aalcohols fuel spray orifice 101 successively; Oil fuel in the present invention's oil rail enters described firing chamber by another Rotating fields of described oily rail and described oils component of oil sprayer through described oil fuel spray orifice 201 successively, thus makes two kinds of fuel not only can spray separately but also can independently spray separately simultaneously.
3) the present invention abandons in prior art increases the method that heating equipment carrys out auxiliary starter, has stopped the problem that engine fuel consumption is large.
4) the present invention is when engine low-temperature starting-up, adopts full oil fuel, switches to Aalcohols fuel, efficiently solve the problem of alcohol engine cold starting difficulty after normal work.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a Novel dual-fuel rail injector assembly, is characterized in that, comprising:
Oil rail, described oily rail is mutually airtight double layer construction, and described double layer construction is used for carrying Aalcohols fuel and oil fuel respectively;
Alcohols component of oil sprayer, described alcohols component of oil sprayer one end is connected with a Rotating fields of described oily rail, the other end is by Aalcohols fuel spray orifice (101) and combustion chamber, and the Aalcohols fuel in described oily rail enters described firing chamber by a Rotating fields of described oily rail and described alcohols component of oil sprayer through described Aalcohols fuel spray orifice (101) successively;
Oils component of oil sprayer, described oils component of oil sprayer one end is connected with another Rotating fields of described oily rail, the other end is by oil fuel spray orifice (201) and combustion chamber, and the oil fuel in described oily rail enters described firing chamber by another Rotating fields of described oily rail and described oils component of oil sprayer through described oil fuel spray orifice (201) successively;
Described oily rail is by be interconnected and the oily rail (209) in upper strata setting up and down successively oil rail (109) and lower floor forms; Described upper strata oil rail (109) has the section of stretching out (110), described lower floor oil rail (209) has flared section (210), described in the section of stretching out (110) surrounded to downward-extension by described flared section (210);
Described upper strata oil rail (109) pass through described in the section of stretching out (110) communicate with described alcohols component of oil sprayer; Described lower floor's oil rail (209) is communicated with described oils component of oil sprayer by described flared section (210); Described alcohols component of oil sprayer connects with the described section of stretching out (110), described oils component of oil sprayer connects with described flared section (210), sealed by seal ring between described flared section (210) and described alcohols component of oil sprayer, sealed by seal ring between described alcohols component of oil sprayer and the described section of stretching out (110);
Described upper strata oil rail (109) to be arranged in directly over described alcohols component of oil sprayer and by the vertically disposed section of stretching out (110), the described Aalcohols fuel in upper strata oil rail (109) to be vertically injected into described alcohols component of oil sprayer, and enters described firing chamber through vertically disposed Aalcohols fuel passage (102) and vertically disposed described Aalcohols fuel spray orifice (101); The oil fuel that described lower floor's oil rail (209) is arranged in directly over described oils component of oil sprayer so that described lower floor oil rail (209) is inner vertically injects described oils component of oil sprayer, and enters described firing chamber through vertically disposed oil fuel passage (202) and vertically disposed described oil fuel spray orifice (201).
2. injector assembly according to claim 1, is characterized in that,
Described alcohols component of oil sprayer comprises the needle (103) of Aalcohols fuel passage (102) and belt coil armature, described needle (103) is positioned at described Aalcohols fuel passage (102), described needle (103) one end has spring mutually, the other end is connected with valve ball (105), described valve ball (105) is butted on described Aalcohols fuel spray orifice (101) mutually, and described needle (103) has matched electromagnetic coil; Or
Described oils component of oil sprayer comprises the needle (103) of oil fuel passage (202) and belt coil armature, described needle (103) is positioned at described oil fuel passage (202), described needle (103) one end has spring mutually, the other end is connected with valve ball (105), described valve ball (105) is butted on described oil fuel spray orifice (201) mutually, and described needle (103) has matched electromagnetic coil.
3. injector assembly according to claim 2, is characterized in that,
Described oils component of oil sprayer comprises the valve collar (203) of oil fuel passage (202) and belt coil armature, described valve collar (203) is positioned at described oil fuel passage (202), described valve collar (203) one end has spring mutually, the other end is connected with valve circle (205), described valve circle (205) is butted on described oil fuel spray orifice (201) mutually, and described valve collar (203) has matched electromagnetic coil; Or
Described alcohols component of oil sprayer comprises the valve collar (203) of Aalcohols fuel passage (102) and belt coil armature, described valve collar (203) is positioned at described Aalcohols fuel passage (102), described valve collar (203) one end has spring mutually, the other end is connected with valve circle (205), described valve circle (205) is butted on described Aalcohols fuel spray orifice (101) mutually, and described valve collar (203) has matched electromagnetic coil.
4. injector assembly according to claim 1, is characterized in that,
It is outside that described alcohols component of oil sprayer is sheathed on described oils component of oil sprayer, or
It is outside that described oils component of oil sprayer is sheathed on described alcohols component of oil sprayer.
5. injector assembly according to claim 1, is characterized in that, described injector assembly also comprises:
Filter screen, described filter screen is arranged on described alcohols component of oil sprayer and described oils component of oil sprayer respectively, and described filter screen is used for the Aalcohols fuel or oil fuel that enter described alcohols component of oil sprayer or described oils component of oil sprayer to filter.
6. injector assembly according to claim 3, is characterized in that,
Described valve ball (105) and described valve circle (205) have been matched valve seat respectively.
7. injector assembly according to claim 1, is characterized in that,
The shape of described oil fuel spray orifice (201) is ring-type.
8. injector assembly according to claim 1, is characterized in that,
Described alcohols component of oil sprayer is overall is cylindrical shape with described oils component of oil sprayer entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020798.1A CN103061938B (en) | 2013-01-18 | 2013-01-18 | A kind of Novel dual-fuel rail injector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020798.1A CN103061938B (en) | 2013-01-18 | 2013-01-18 | A kind of Novel dual-fuel rail injector assembly |
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| CN103061938A CN103061938A (en) | 2013-04-24 |
| CN103061938B true CN103061938B (en) | 2015-09-30 |
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| CN201310020798.1A Active CN103061938B (en) | 2013-01-18 | 2013-01-18 | A kind of Novel dual-fuel rail injector assembly |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FI20145215L (en) * | 2014-03-06 | 2015-09-07 | Waertsilae Finland Oy | Piston engine and method of operating a piston engine |
| CN104074651A (en) * | 2014-06-23 | 2014-10-01 | 刘刚凌 | Hybrid fuel supply spray nozzle |
| CN105781839B (en) * | 2016-04-29 | 2018-04-06 | 吉林大学 | A kind of crosspointer valve electric-controlled fuel injector of double-deck spray orifice |
| WO2021062601A1 (en) * | 2019-09-30 | 2021-04-08 | 潍柴动力股份有限公司 | Dual fuel supply system for engine and dual fuel engine having same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4425339C2 (en) * | 1994-02-11 | 1998-10-22 | Mtu Friedrichshafen Gmbh | Injection system |
| DE10156657C2 (en) * | 2001-11-17 | 2003-12-04 | Daimler Chrysler Ag | Dual fuel injector |
| CA2635410C (en) * | 2008-06-19 | 2010-08-17 | Westport Power Inc. | Dual fuel connector |
| US8733326B2 (en) * | 2011-06-24 | 2014-05-27 | Caterpillar Inc. | Dual fuel injector for a common rail system |
| CN102705120B (en) * | 2012-06-19 | 2015-03-11 | 哈尔滨工程大学 | Dual-fuel electric control monomer ejector |
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Effective date of registration: 20190328 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |
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