CN103912424A - Current driving type natural gas nozzle assembly - Google Patents
Current driving type natural gas nozzle assembly Download PDFInfo
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- CN103912424A CN103912424A CN201410050789.1A CN201410050789A CN103912424A CN 103912424 A CN103912424 A CN 103912424A CN 201410050789 A CN201410050789 A CN 201410050789A CN 103912424 A CN103912424 A CN 103912424A
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- nozzle
- air inlet
- inlet cavity
- nozzle assembly
- heat
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Abstract
The invention discloses a current driving type natural gas nozzle assembly. The current driving type natural gas nozzle assembly is provided with a first element, a plurality of nozzle modules, a second element, a nozzle driving unit, a gas temperature pressure sensor and a PTC nozzle heating device, wherein the first element contains an air inlet cavity; the nozzle modules are installed at the top of the first element; the second element contains an air outlet cavity and is installed at the air outlet ends of the nozzle modules; the nozzle driving unit is locally/integrally installed on the air inlet cavity and provided with a nozzle driving heat dissipation electronic element capable of dissipating heat to the air inlet cavity; the gas temperature pressure sensor is installed on the first element and provided with a detection end located on the air inlet cavity and a signal output end connected to an engine electronic control unit; and the PTC nozzle heating device is installed on the nozzle modules, transfers heat to static iron cores and movable iron cores in nozzles through nozzle casings and is connected to the engine electronic control unit and automatically controlled through the engine electronic control unit. The current driving type natural gas nozzle assembly guarantees that a natural gas engine can be reliably started under the low-temperature poor environment, and low-temperature starting performance of the gas engine is greatly improved.
Description
Technical field
The present invention relates to the nozzle that gas combustion automobile uses, especially relate to a kind of current drive-type gas spraying nozzle assembly.
Background technique
Due to global warming, PM2.5 and haze roll up, cause natural gas engine and automobile pollution to roll up, in gas engine, due to the needs of discharge and Economy, a large amount of natural gas injection control system that adopt, in ejecting system, nozzle is most important, the most accurate gas metering parts, but because rock gas is refining, in the processes such as gas station fills, can constantly mix some greasy dirts, moisture, therefore along with the continuous flow nozzle of rock gas, greasy dirt, moisture is constantly gathered in nozzle interior static iron core, around moving iron core, under low temperature condition, greasy dirt, the stickiness of moisture increases or freezes, stick the moving iron core of nozzle, increase the unlatching difficulty of nozzle.
Current type nozzle drives can produce a large amount of heats in the time opening nozzle, if the unhappy speed belt of this part heat is walked and is eliminated, will cause driving cause thermal damage, but arrangement condition is limited in actual use, environment is airtight, air flow property is poor, and therefore radiating condition requirement is high, arranges more difficult on compact sedan.
Summary of the invention
Object of the present invention is exactly in order to address the above problem, and provides a kind of and guarantees that natural gas engine reliably starts, improves natural gas engine low-temperature startup performance and strengthen current type nozzle the current drive-type gas spraying nozzle assembly that drives heat dissipation potential under low temperature rugged environment.
To achieve these goals, the present invention adopts following technological scheme:
Current drive-type gas spraying nozzle assembly, it comprises the injector assembly structure that contains inlet end and outlet side, it is characterized in that, this injector assembly structure has:
Containing the first element of air inlet cavity, the lower end air intake structure of this injector assembly structure is arranged in this first element;
The multiple nozzle assemblies that are installed on the first element top, the entrance of nozzle is connected to air inlet cavity;
Containing the second element of the cavity of giving vent to anger, it is installed on the outlet side of nozzle assembly, and the upper end air outlet structure of this injector assembly structure is arranged in this second element;
Local/overall is installed on the nozzle driver element of air inlet cavity, and this nozzle driver element is provided with the nozzle driving radiating electronic element that can heat sink to air inlet cavity;
Be installed on the fuel gas temperature pressure transducer of the first element, it has the signal output part that is positioned at the end of probe of air inlet cavity and and is connected to engine electronic control unit;
Be installed on nozzle assembly and by nozzle housing, heat be passed to the PTC nozzle heating device of nozzle interior static iron core, moving iron core, it is connected to engine electronic control unit and is automatically controlled by it.
As further optimization of the present invention is, between described the second element and PTC nozzle heating device, there is heat insulation gap, in this entirety/part, heat insulation gap, heat insulating mattress is installed.
As further optimization of the present invention is, described PTC nozzle heating device is close to nozzle housing by heat-conducting silicone grease.
The present invention is in conjunction with the simple physical phenomenon of compressed natural gas (CNG) vaporization heat absorption, and the ingenious temperature that reduces fast nozzle driver part, improves the reliability that nozzle drives greatly.Motor is in the time of at a high speed large load operation, the heating value maximum that nozzle drives, need to dispel the heat in a large number to the external world fast, but now because CNG vaporization rate is also the fastest, what therefore need absorbs fast a large amount of heats from the external world, to accelerate combustion gas expansion vaporization, therefore this part heat of combustion gas vaporization is just in time by driving heating to provide.Therefore, this invention utilizes the physical principle of car load combustion gas vaporization heat absorption to carry out quick heat radiating refrigeration for driving cleverly, drives the heat producing also to accelerate CNG vaporization simultaneously, reaches the reasonable transmission of energy, recycles.
The present invention has following beneficial effect:
(1) this invention guarantees that natural gas engine reliably starts, greatly improves gas engine low-temperature startup performance under low temperature rugged environment.
(1) automatically nozzle is carried out to warm-up control after surveying fuel gas temperature, ambient temperature by ECU, eliminate the stickiness that the greasy dirt that freezes brings completely, while guaranteeing nozzle cold-starting, successfully open, also reduce the peak electric current that nozzle drives simultaneously, reduced the requirement of heat radiation.
Accompanying drawing explanation
Fig. 1 is embodiment 1 current drive-type gas spraying nozzle assembly plan view.
Fig. 2 is embodiment 1 current drive-type gas spraying nozzle assembly right elevation.
Fig. 3 is embodiment 1 current drive-type gas spraying nozzle assembly plan view.
Fig. 4 is embodiment 1 current drive-type gas spraying nozzle assembly stereogram.
Fig. 5 is PTC heat block structural representation I in embodiment 1 current drive-type gas spraying nozzle assembly.
Fig. 6 is PTC heat block structural representation II in embodiment 1 current drive-type gas spraying nozzle assembly.
Fig. 7 is PTC heated shell plan view in embodiment 1 current drive-type gas spraying nozzle assembly.
Fig. 8 is PTC heated shell plan view in embodiment 1 current drive-type gas spraying nozzle assembly.
Fig. 9 is PTC heated shell worm's eye view in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 10 is PTC heated shell left view in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 11 is A-A sectional view in Fig. 8.
Figure 12 is B-B sectional view in Fig. 8.
Figure 13 is air outlet adapter plan view in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 14 is air outlet adapter stereogram in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 15 is C-C sectional view in Figure 13.
Figure 16 is the second element plan view containing the cavity of giving vent to anger in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 17 is the second element plan view containing the cavity of giving vent to anger in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 18 is the second element worm's eye view containing the cavity of giving vent to anger in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 19 is the second element left view containing the cavity of giving vent to anger in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 20 is the second element stereogram containing the cavity of giving vent to anger in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 21 is D-D sectional view in Figure 16.
Figure 22 is E-E sectional view in Figure 17.
Figure 23 is F-F sectional view in Figure 18.
Figure 24 is bottom gasket construction schematic diagram in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 25 is bottom cover structure schematic diagram in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 26 is G-G sectional view in Figure 25.
Figure 27 pads tubular construction schematic diagram in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 28 is H-H sectional view in Figure 27.
Figure 29 is heat insulating mattress structural representation in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 30 is air input joint structural representation in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 31 is air input joint sectional view in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 32 is the first element plan view containing air inlet cavity in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 33 is the first element plan view containing air inlet cavity in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 34 is the first element worm's eye view containing air inlet cavity in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 35 is the first element left view containing air inlet cavity in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 36 is the first element right elevation containing air inlet cavity in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 37 is I-I sectional view in Figure 33.
Figure 38 is J-J sectional view in Figure 33.
Figure 39 is K-K sectional view in Figure 32.
Figure 40 is air-inlet cavity rear cover structure schematic diagram in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 41 is L-L sectional view in Figure 40.
Figure 42 is air-inlet cavity front-cover structure schematic diagram in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 43 is M-M sectional view in Figure 42.
Figure 44 drives insulation spacer I structural representation in embodiment 1 current drive-type gas spraying nozzle assembly.
Figure 45 drives insulation spacer II structural representation in embodiment 1 current drive-type gas spraying nozzle assembly.
In figure: 1, the first element; 2, nozzle assembly; 3, the second element; 4, nozzle driver element; 5, PTC nozzle heating device; 6, temperature and pressure transmitter; 7, bottom; 8, bottom pad; 9, pad pipe; 10, air input joint; 11, protecgulum; 12, bonnet; 13, main cavity; 14, exit; 15, crosspassage; 16, spray rail assembly fixed hole; 20, nozzle plug connector; 30, air outlet adapter; 31, access port; 32, pipe influx chamber; 40, drive insulation spacer I; 41, drive insulation spacer II; 42, nozzle drives plug connector; 50, PTC heated shell; 51, PTC heat block; J1, heat insulating mattress.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.If no special instructions, in full text, the implication of "/" is "or".
Referring to Fig. 1～45, current drive-type gas spraying nozzle assembly, it comprises the injector assembly structure (being referred to as again to spray rail assembly structure) containing inlet end and outlet side, the structure that this injector assembly structure adopts air inlet upper end, lower end to give vent to anger, particularly, this injector assembly structure has: containing the first element 1 of air inlet cavity, the lower end air intake structure of this injector assembly structure is arranged in this first element, and described the first element is provided with spray rail assembly fixed hole 16; Four nozzle assemblies 2 that are installed on the first element top, the entrance of nozzle is connected to air inlet cavity, the arranged in form that these four nozzle assemblies are listed as according to two row two, this nozzle assembly is provided with nozzle plug connector 20; Containing the second element 3 of the cavity of giving vent to anger, it is installed on the outlet side of nozzle assembly, and the upper end air outlet structure of this injector assembly structure is arranged in this second element, and give vent to anger cavity and nozzle outlet side adopt side seal; Local/overall is installed on the nozzle driver element 4 of air inlet cavity, and this nozzle driver element is provided with the nozzle driving radiating electronic element that can heat sink to air inlet cavity, and described nozzle driver element has a nozzle and drives plug connector 42; Be installed on the fuel gas temperature pressure transducer 6 of the first element, it has the signal output part that is positioned at the end of probe of air inlet cavity and and is connected to engine electronic control unit; Be installed on nozzle assembly and by nozzle housing, heat be passed to the PTC nozzle heating device 5 of nozzle interior static iron core, moving iron core, it is connected to engine electronic control unit (ECU) and is automatically controlled by it.Described PTC nozzle heating device is close to nozzle housing by heat-conducting silicone grease.By nozzle housing, heat is passed to quiet, the moving iron core of nozzle interior again, reduce greasy dirt viscosity, melt icing moisture.
Because the low current of ECU output cannot directly drive nozzle assembly work, the low current of ECU output can be risen to the high electric current that can drive nozzle assembly work according to prior art.
Be understandable that, because this injector assembly structure adopts air inlet upper end, the lower end structure of giving vent to anger, centre adopts the nozzle of different numbers to connect according to the size of engine power, and be not limited only to aforesaid four nozzle assemblies, also 5,6,8,10 or more, this depends on the size of engine power.
In the situation that PTC nozzle heating device heats nozzle assembly, other structure being in contact with one another can be taken away heat, in such cases, between described the second element and PTC nozzle heating device, there is heat insulation gap, in this part, heat insulation gap, heat insulating mattress is installed, such as the left and right end that heat insulating mattress is arranged on to heat insulation gap.Referring to Figure 29, between two ends of described the second element and PTC nozzle heating device, heat insulating mattress J1 is installed.
This current drive-type gas spraying nozzle assembly is four NG01 individual nozzle compositions, and when installation, nozzle is installed straight up, the oblique lower layout of nozzle plug connector 20.Wherein, the left and right nozzle plug connector side of nozzle need to leave certain space and be convenient to plug nozzle plug connector, plug connector 42 sides that drive nozzle must leave certain space plug nozzle and drive plug connector, and whole current drive-type gas spraying nozzle assembly mounting point is as far as possible near mixer, avoid spraying rail long to mixer sebific duct, affect engine performance.
Referring to Fig. 5～12, described PTC nozzle heating device 5 is installed on the top of nozzle, it comprises: PTC heated shell 50, the PTC heat block 51 coordinating with PTC heated shell, described PTC heated shell 50 has four perforates that coordinate with nozzle assembly, and has groove shape structure in upper surface middle position.This PTC nozzle heating device mounting point includes but not limited to this, can also be arranged on the side of nozzle.Select PTC nozzle heating device, can effectively be ensured for the Security that uses heating equipment itself.
Wherein, PTC heat block is selected PTC heater element, and shell adopts aluminium alloy extrusions, and two ends encapsulate high temperature resistant red silica gel sealing, can bear the pressure of 1.2bar, there will not be extraneous gas to enter PTC heating element inside.PTC resistive element is covered with in long aluminium alloy extrusions shown in Fig. 5 510 uniformly, electrode slices and wire must be encapsulated in aluminium alloy extrusions.In normal temperature situation, voltage rating (voltage rating 24V, ceiling voltage 30V) heating within 1 minute, need reach more than 200 ℃ with interior aluminium alloy section surface temperature, hot face temperature is controlled at 250 ± 10 degrees Celsius, and wire adopts Teflon lead, length 180mm, temperature resistant range-30 are ℃ to 350 ℃, wire outer surface overlaps the glass fiber pipe of suitable size, and outlet terminal fiberglass pipe need be encapsulated in high temperature resistant silicon sebific duct the inside, does not stay air clearance as far as possible.
Referring to Figure 19～23, the top of described the second element is provided with the mount inlet of the air outlet adapter 30(air outlet adapter that is connected to mixer and arranges between two parties), described the second element has the interface (four) with nozzle assembly quantity Matching.Particularly, described the second element has the access port 31 of nozzle assembly cooperation, the pipe influx chamber 32 that each access port is collected, air outlet adapter 30 is led in this pipe influx chamber, described pipe influx cavity has horizontal pipeline and the pipe tunnel communicating with access port and the vertical duct of being located at horizontal pipeline and communicating with air outlet adapter, and described horizontal pipeline and pipe tunnel are equipped with one by the shutoff end of plug shutoff.
Referring to Figure 24～26, described nozzle driver element is provided with bottom 7, and the bottom pad 8 made from non-asbestos is installed between bottom and nozzle driver element, between this bottom and the first element, can sealing material be set and air inlet cavity is effectively sealed, and, nozzle driver element selects good Heat Conduction Material to carry out heat derivation to it, carries out heat conduction such as pottery, silica gel sheet etc.
Referring to Figure 27～28, between described the second element and the first element, be provided with the pad pipe 9 of hollow.
Referring to Figure 32～39, described the first element is provided with air input joint 10 at sidewall, this first element has a main cavity communicating with air input joint 13, this main cavity inside has the fixed block of the pcb board of fixed nozzle driver element, because the sidewall fixed nozzle driver element of the first element has selected main cavity top to be fixed, this first element is provided with and nozzle assembly quantity Matching and the exit 14 that cooperatively interacts, described the first element is provided with two groups of crosspassages 15, and communicates between crosspassage.
Referring to Figure 40～43, described the first element is provided with air inlet cavity protecgulum 11, air inlet cavity bonnet 12.
Referring to Figure 44～45, described nozzle driver element is provided with and drives insulation spacer I40 and drive insulation spacer II41.
This current drive-type gas spraying nozzle assembly carries out warm-up control to nozzle after surveying fuel gas temperature, ambient temperature by ECU automatically, eliminate viscosity icing and that greasy dirt brings completely, while guaranteeing nozzle cold-starting, successfully start, reduce the peak electric current that nozzle drives simultaneously, reduced the requirement of heat radiation.
The foregoing is only the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned mode of execution, and every technological scheme that belongs to the principle of the invention all belongs to protection scope of the present invention.For a person skilled in the art, some improvement of carrying out under the prerequisite that does not depart from principle of the present invention, these improve and also should be considered as protection scope of the present invention.
Claims (3)
1. current drive-type gas spraying nozzle assembly, it comprises the injector assembly structure that contains inlet end and outlet side, it is characterized in that, this injector assembly structure has:
Containing the first element of air inlet cavity, the lower end air intake structure of this injector assembly structure is arranged in this first element;
The multiple nozzle assemblies that are installed on the first element top, the entrance of nozzle is connected to air inlet cavity;
Containing the second element of the cavity of giving vent to anger, it is installed on the outlet side of nozzle assembly, and the upper end air outlet structure of this injector assembly structure is arranged in this second element;
Local/overall is installed on the nozzle driver element of air inlet cavity, and this nozzle driver element is provided with the nozzle driving radiating electronic element that can heat sink to air inlet cavity;
Be installed on the fuel gas temperature pressure transducer of the first element, it has the signal output part that is positioned at the end of probe of air inlet cavity and and is connected to engine electronic control unit;
Be installed on nozzle assembly and by nozzle housing, heat be passed to the PTC nozzle heating device of nozzle interior static iron core, moving iron core, it is connected to engine electronic control unit and is automatically controlled by it.
2. current drive-type gas spraying nozzle assembly according to claim 1, is characterized in that, between described the second element and PTC nozzle heating device, has heat insulation gap, in this entirety/part, heat insulation gap, heat insulating mattress is installed.
3. current drive-type gas spraying nozzle assembly according to claim 1, is characterized in that, described PTC nozzle heating device is close to nozzle housing by heat-conducting silicone grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050789.1A CN103912424A (en) | 2014-02-14 | 2014-02-14 | Current driving type natural gas nozzle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050789.1A CN103912424A (en) | 2014-02-14 | 2014-02-14 | Current driving type natural gas nozzle assembly |
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| Publication Number | Publication Date |
|---|---|
| CN103912424A true CN103912424A (en) | 2014-07-09 |
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ID=51038362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050789.1A Pending CN103912424A (en) | 2014-02-14 | 2014-02-14 | Current driving type natural gas nozzle assembly |
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| CN (1) | CN103912424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545526A (en) * | 2016-01-29 | 2016-05-04 | 成都杜嘉机电有限公司 | Gas injection rail for automobile |
| CN111707103A (en) * | 2020-06-30 | 2020-09-25 | 伟凯美(深圳)自动化技术有限公司 | Selective preheating furnace for wave soldering and selective soldering before soldering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644442A (en) * | 1979-09-19 | 1981-04-23 | Nippon Soken Inc | Suction air heater for internal combustion engine |
| CN2147362Y (en) * | 1992-11-14 | 1993-11-24 | 苗志臻 | Silicon nitride ceramic fire gas feeding preheater |
| CN201106510Y (en) * | 2007-11-30 | 2008-08-27 | 柳州国机实业有限公司 | Cool start rapid heating system of vehicle electric spraying engine |
| EP2071158A1 (en) * | 2007-12-11 | 2009-06-17 | Robert Bosch Gmbh | Device for injecting gas into a combustion engine, a set of gas injector valves, method for operating gas injector valves |
| CN203702376U (en) * | 2014-02-14 | 2014-07-09 | 上海依相动力系统有限公司 | Current-driven natural gas nozzle assembly |
-
2014
- 2014-02-14 CN CN201410050789.1A patent/CN103912424A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644442A (en) * | 1979-09-19 | 1981-04-23 | Nippon Soken Inc | Suction air heater for internal combustion engine |
| CN2147362Y (en) * | 1992-11-14 | 1993-11-24 | 苗志臻 | Silicon nitride ceramic fire gas feeding preheater |
| CN201106510Y (en) * | 2007-11-30 | 2008-08-27 | 柳州国机实业有限公司 | Cool start rapid heating system of vehicle electric spraying engine |
| EP2071158A1 (en) * | 2007-12-11 | 2009-06-17 | Robert Bosch Gmbh | Device for injecting gas into a combustion engine, a set of gas injector valves, method for operating gas injector valves |
| CN203702376U (en) * | 2014-02-14 | 2014-07-09 | 上海依相动力系统有限公司 | Current-driven natural gas nozzle assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545526A (en) * | 2016-01-29 | 2016-05-04 | 成都杜嘉机电有限公司 | Gas injection rail for automobile |
| CN111707103A (en) * | 2020-06-30 | 2020-09-25 | 伟凯美(深圳)自动化技术有限公司 | Selective preheating furnace for wave soldering and selective soldering before soldering |
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Application publication date: 20140709 |