CN106121886A - Fuel injector fast temperature control system on a kind of cylinder cap - Google Patents
Fuel injector fast temperature control system on a kind of cylinder cap Download PDFInfo
- Publication number
- CN106121886A CN106121886A CN201610782734.9A CN201610782734A CN106121886A CN 106121886 A CN106121886 A CN 106121886A CN 201610782734 A CN201610782734 A CN 201610782734A CN 106121886 A CN106121886 A CN 106121886A
- Authority
- CN
- China
- Prior art keywords
- coolant
- temperature sensor
- temperature
- cooling
- nozzle
- 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.)
- Pending
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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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
Abstract
The invention discloses fuel injector temperature control system on a kind of cylinder cap, including circulation cavity and temperature sensor module, described circulation cavity is looped around around the nozzle of cylinder cap, Cooling of Cylinder Head liquid stream is through described circulation cavity, temperature sensor module includes the first temperature sensor and the second temperature sensor, described first temperature sensor is arranged on the outer surface of described nozzle, and described second temperature sensor is arranged on the pipeline that described Cooling of Cylinder Head liquid stream enters before described circulation cavity.Described Cooling of Cylinder Head liquid is high temperature coolant or cryogenic liquid, and described high temperature coolant is to flow through the heated coolant of whole engine cooling circuit, and described cryogenic liquid processes through cooling, is flowing through the coolant before engine cooling circuit.Also include that flow control valve, described flow control valve are configured to regulate the ratio of described high temperature coolant and cryogenic liquid.
Description
Technical field
The present invention relates to petrol engine field, particularly relate to fuel injector temperature control system on a kind of cylinder cap.
Background technology
The extensive application of gasoline engine direct-injection system, enhances the transient response ability of gasoline engine, also improves its combustion simultaneously
Oil economy.But, directly jetting gasoline engine is difficult to start under cold start-up operating mode, and exhaust particulate thing discharges too high problem always
It is academia, the emphasis of industrial quarters research.Research shows, suitable lifting fuel oil temperature, it is achieved fuel oil dodges boiling spraying, can be relatively
Under the conditions of low injection pressure, it is obviously improved fuel-oil atmozation, evaporation effect, reduces gasoline engine exhaust emissions, promote fuel oil
The effect of economy.At present, the technology of these type of heated fuel oils all, it is substantially and is realized by the scheme of electric heating type nozzle,
I.e. design electrical heating module in nozzle interior, when fuel oil flows through nozzle, by this heating module, fuel oil is heated.This side
Although case can significantly improve fuel-oil atmozation and evaporation effect, but it increases nozzle design and manufacture cost, and is also required to external
Storage battery power supply, the feature of environmental protection is poor.It addition, electric heating nozzle can only realize heating function, it is impossible to realize cooling function.
Therefore, those skilled in the art is devoted to develop fuel injector temperature control system on a kind of cylinder cap, it is possible to fire direct-injection
Oil carries out heating or cooling down and without externally fed.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide how outside need not
In the case of portion powers, direct fuel injection is heated or cooled.
For achieving the above object, the invention provides fuel injector temperature control system on a kind of cylinder cap, including circulation cavity and temperature
Degree sensor assembly, described circulation cavity is looped around around the nozzle of cylinder cap, and Cooling of Cylinder Head liquid stream is through described circulation cavity, temperature
Sensor assembly includes that the first temperature sensor and the second temperature sensor, described first temperature sensor are arranged on described nozzle
Outer surface, described second temperature sensor is arranged on the pipeline that described Cooling of Cylinder Head liquid stream enters before described circulation cavity.
Further, described Cooling of Cylinder Head liquid is high temperature coolant or cryogenic liquid, and described high temperature coolant is to flow through
The heated coolant of whole engine cooling circuit, described cryogenic liquid processes through cooling, is flowing through engine cool
Coolant before loop.
Further, also include that flow control valve, described flow control valve are configured to regulate described high temperature cooling
Liquid and the ratio of cryogenic liquid.
On cylinder cap of the present invention, fuel injector temperature control system uses Cooling of Cylinder Head liquid to be controlled nozzle temperature, at cylinder
At the nozzle mounting position of lid, design coolant circulation cavity, this cavity is around nozzle body portion, when coolant flows through this chamber
During body, nozzle body can be heated or cool down.At nozzle body outer surface, the first temperature sensor is installed, with prison in real time
Survey nozzle body temperature.Coolant is also provided with the second temperature sensing on the pipeline before flow nozzle surrounding loop cavity
Device, with the temperature of coolant in monitoring inflow cavity.The coolant flowing into cavity has two kinds, and one is high temperature coolant, i.e. flows
Through the heated coolant of whole engine cooling circuit；Another kind is cryogenic liquid, i.e. processes through cooling, sends out flowing through
Coolant before motivation cooling circuit.High temperature coolant and the ratio of cryogenic liquid, can control stream by control valve
The cryogenic liquid entering cavity is controlled.It is that control valve opening angle diminishes or closes when nozzle temperature is less than target temperature
Close, increase high temperature coolant and flow into the ratio of cavity, it is achieved heating fuel oil.When nozzle temperature is higher than target temperature, control
Valve processed is opened, and increases cryogenic liquid and enters the ratio of cavity, it is achieved fuel oil refrigerating function.
On cylinder cap of the present invention, fuel injector temperature control system uses engine cylinder cover coolant to heat nozzle (cold
But), it is not necessary to extra power supplies, and uses engine coolant used heat, improves engine thermal utilization ratio further；Not only
Fuel oil can be heated, and fuel oil can be lowered the temperature；Without special nozzle structure, reduce injection system cost；If
Meter is installed simple, and Cooling of Cylinder Head liquid only need to introduce in the cavity around nozzle being circulated.
Below with reference to accompanying drawing, the technique effect of design, concrete structure and the generation of the present invention is described further, with
It is fully understood from the purpose of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a preferred embodiment of the present invention；
1-high temperature coolant entrance；2-cryogenic liquid entrance；3-coolant inlet pipeline；4-flow control valve；5-
Second temperature sensor；6-nozzle；7-the first temperature sensor；8-cooling liquid outlet pipeline；9-cooling liquid outlet；10-cavity.
Detailed description of the invention
As it is shown in figure 1, fuel injector temperature control system uses Cooling of Cylinder Head liquid to add nozzle on cylinder cap of the present invention
Heat or cooling, thus realize the function that fuel oil temperature controls.Coolant flows into cavity 10 through entrance pipe 3, then through outlet
Pipeline 8 flows out.
Two kinds of coolants can flow into entrance pipe, and high temperature coolant flows into from entrance 1, and cryogenic liquid is from cryogenic liquid
Entrance 2 flows into.Flow into the high temperature of cavity 10, the ratio of cryogenic liquid, can adjust by controlling flow control valve 4
Joint.When flow control valve 4 is fully closed, cryogenic liquid is not had to flow into circulation cavity；During flow control valve standard-sized sheet, high temperature, low temperature
Coolant approximate ratio 1:1.
Second temperature sensor 5 is arranged on the pipeline that coolant enters before cavity 10, and it is cold that monitoring in real time flows into cavity
But the temperature of liquid.Coolant flows in cavity 10, it is achieved the heating to nozzle 6, so realize fuel oil in nozzle add hot merit
Energy.The cooled liquid pipeline of coolant 8 after heated nozzle flows out, cooled liquid outlet 9 inflow coolant cooling system.
Owing to the nozzle of directly jetting gasoline engine is directly installed in combustor, the heat produced in combustion process can directly heat spray
Mouth, therefore the control to nozzle temperature has two aspects, and one is heating, and one is cooling.Because fuel oil temperature is different, result in
Fuel spray the most different, it is therefore desirable to regulation fuel oil temperature, to realize optimal fuel spray.
As follows in this heat or cool:
(1) when the nozzle temperature that the second temperature sensor 7 detects is less than target temperature, flow control valve 4 is regulated
Aperture, reduce the ratio flowing into cryogenic liquid, it is achieved the rapid heating to nozzle；
(2) nozzle temperature detected when the second temperature sensor 7 is to regulate flow control valve 4 higher than target temperature
Aperture, increase the ratio flowing into cryogenic liquid, it is achieved the rapid cooling to nozzle.
The aperture of flow control valve 4, by calculating nozzle temperature and the first temperature sensing that temperature sensor 7 detects
Difference between the temperature and the target nozzle temperature that flow into cavity coolant that device 5 detects, is controlled.
The preferred embodiment of the present invention described in detail above.Should be appreciated that the ordinary skill of this area is without wound
The property made work just can make many modifications and variations according to the design of the present invention.Therefore, all technical staff in the art
The most on the basis of existing technology by the available technology of logical analysis, reasoning, or a limited experiment
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (3)
1. fuel injector temperature control system on a cylinder cap, it is characterised in that include circulating cavity and temperature sensor module, described in follow
Ring cavity body is looped around around the nozzle of cylinder cap, and Cooling of Cylinder Head liquid stream is through described circulation cavity, and temperature sensor module includes first
Temperature sensor and the second temperature sensor, described first temperature sensor is arranged on the outer surface of described nozzle, and described second
Temperature sensor is arranged on the pipeline that described Cooling of Cylinder Head liquid stream enters before described circulation cavity.
2. fuel injector temperature control system on cylinder cap as claimed in claim 1, it is characterised in that described Cooling of Cylinder Head liquid is that high temperature is cold
But liquid or cryogenic liquid, described high temperature coolant is to flow through the heated coolant of whole engine cooling circuit, described low
Temperature coolant processes through cooling, is flowing through the coolant before engine cooling circuit.
3. fuel injector temperature control system on cylinder cap as claimed in claim 2, it is characterised in that also include flow control valve, institute
State flow control valve and be configured to regulate the ratio of described high temperature coolant and cryogenic liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782734.9A CN106121886A (en) | 2016-08-30 | 2016-08-30 | Fuel injector fast temperature control system on a kind of cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782734.9A CN106121886A (en) | 2016-08-30 | 2016-08-30 | Fuel injector fast temperature control system on a kind of cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121886A true CN106121886A (en) | 2016-11-16 |
Family
ID=57273572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610782734.9A Pending CN106121886A (en) | 2016-08-30 | 2016-08-30 | Fuel injector fast temperature control system on a kind of cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121886A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042969A (en) * | 2019-12-10 | 2020-04-21 | 西安交通大学 | Test device for measuring flash boiling spray |
| US11708810B1 (en) | 2022-05-17 | 2023-07-25 | Caterpillar Inc. | Fuel system and engine head assembly having double-walled fuel connector for cooling fuel return |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277927A (en) * | 1999-06-07 | 2000-12-27 | 三菱重工业株式会社 | Coolant circulation device for vehicle |
| EP1094217A2 (en) * | 1999-10-22 | 2001-04-25 | Ford Global Technologies, Inc. | Fuel injector system |
| JP2004239126A (en) * | 2003-02-05 | 2004-08-26 | Nissan Motor Co Ltd | Cylinder head of direct injection type spark ignition internal combustion engine and method for manufacturing the same |
| CN2900807Y (en) * | 2006-05-26 | 2007-05-16 | 广西玉柴机器股份有限公司 | Temperature controller for engine cooling liquid |
| CN201401240Y (en) * | 2009-04-28 | 2010-02-10 | 东风康明斯发动机有限公司 | Cylinder cover with oil injector cooling water mantle cavity and high-temperature resistant bushing |
| CN101852117A (en) * | 2009-05-29 | 2010-10-06 | 柳光日 | Valve-plate electronic thermostat |
| CN103518057A (en) * | 2011-04-12 | 2014-01-15 | 瓦锡兰芬兰有限公司 | Arrangement for and method of regulating fuel temperature in at least one fuel injector |
| CN104100351A (en) * | 2013-04-08 | 2014-10-15 | 现代自动车株式会社 | Method for controlling water pump of vehicle and system thereof |
-
2016
- 2016-08-30 CN CN201610782734.9A patent/CN106121886A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277927A (en) * | 1999-06-07 | 2000-12-27 | 三菱重工业株式会社 | Coolant circulation device for vehicle |
| EP1094217A2 (en) * | 1999-10-22 | 2001-04-25 | Ford Global Technologies, Inc. | Fuel injector system |
| JP2004239126A (en) * | 2003-02-05 | 2004-08-26 | Nissan Motor Co Ltd | Cylinder head of direct injection type spark ignition internal combustion engine and method for manufacturing the same |
| CN2900807Y (en) * | 2006-05-26 | 2007-05-16 | 广西玉柴机器股份有限公司 | Temperature controller for engine cooling liquid |
| CN201401240Y (en) * | 2009-04-28 | 2010-02-10 | 东风康明斯发动机有限公司 | Cylinder cover with oil injector cooling water mantle cavity and high-temperature resistant bushing |
| CN101852117A (en) * | 2009-05-29 | 2010-10-06 | 柳光日 | Valve-plate electronic thermostat |
| CN103518057A (en) * | 2011-04-12 | 2014-01-15 | 瓦锡兰芬兰有限公司 | Arrangement for and method of regulating fuel temperature in at least one fuel injector |
| CN104100351A (en) * | 2013-04-08 | 2014-10-15 | 现代自动车株式会社 | Method for controlling water pump of vehicle and system thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042969A (en) * | 2019-12-10 | 2020-04-21 | 西安交通大学 | Test device for measuring flash boiling spray |
| US11708810B1 (en) | 2022-05-17 | 2023-07-25 | Caterpillar Inc. | Fuel system and engine head assembly having double-walled fuel connector for cooling fuel return |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |