CN105484923A - Low-temperature starting device and method for air-cooled diesel engine - Google Patents
Low-temperature starting device and method for air-cooled diesel engine Download PDFInfo
- Publication number
- CN105484923A CN105484923A CN201510837360.1A CN201510837360A CN105484923A CN 105484923 A CN105484923 A CN 105484923A CN 201510837360 A CN201510837360 A CN 201510837360A CN 105484923 A CN105484923 A CN 105484923A
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- Prior art keywords
- flame
- air
- temperature
- preheating
- diesel engine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
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- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
- F02M31/042—Combustion air
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- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/13—Combustion air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/06—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of combustion-air by flame generating means, e.g. flame glow-plugs
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a low-temperature starting device and method for an air-cooled diesel engine. The present invention aims to provide a low-temperature starting device and method for the air-cooled diesel engine capable of smoothly starting the air-cooled diesel engine in a low temperature environment. The low-temperature starting device comprises a flame preheating device and an electric heating preheating device. The flame preheating device and the electric heating preheating device are disposed in an air inlet (1) of the diesel engine. The low-temperature starting method comprises the following step: when the temperature is minus 15 DEG C or above, only the flame preheating device is started, and the electric system starts ohmic heating of a flame preheating plug (3); and when the temperature is minus 35 DEG C to minus 15 DEG C, the electric heating preheating device is started under the premise of starting the flame preheating device.
Description
Technical field
The present invention relates to air-cooled diesel engine field, particularly relate to a kind of device and method for air-cooled diesel engine cold-starting.
Background technique
The quick cold starting under extremely cold condition of high-power air-cooled diesel engine is a difficult point.Generally use the scheme of intake duct flame preheat and the common auxiliary starter of injection cold-starting combustion improver at present.For intake duct flame preheat mode, can ensure that vehicle starts more than-15 DEG C, for lower temperature (as-35 DEG C ~-15 DEG C), depend merely on flame preheat and cannot start, must increase and spray combustion improver measure.For injection combustion improver auxiliary starter, roughness noise, affects engine life, when combustion improver discharge rate is too much, can cause engine knock, obviously increase the danger of operation.For this reason, the problems demand solution that high-power air-cooled diesel engine starts at low ambient temperatures fast is smoothly solved.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of air-cooled diesel engine can be made to start smoothly at low ambient temperatures low-temperature starting device for air-cooled and method.
Low-temperature starting device for air-cooled in the present invention, comprise flame preheating device and electric heating Preheating unit, described flame preheating device and electric heating Preheating unit are all arranged in the intake duct of diesel engine, air in described intake duct flows to flame preheating device from electric heating Preheating unit, the oil nozzle of diesel engine is located between electric heating Preheating unit and flame preheating device, described flame preheating device comprises Flame preheating plug, electrical system and the first control system, described electrical system is used for heating flame heater plug, described first control system is for controlling the temperature of Flame preheating plug, described electric heating Preheating unit comprises heater, heating wire and the second control system, described heater is connected with heating wire, described second control system control heater is to the heating-up temperature of heating wire.
Low-temperature starting device for air-cooled in the present invention, wherein said first control system comprises the power supply, temperature detect switch (TDS) and the electrical switch that are connected by wire.
Low-temperature starting device for air-cooled in the present invention, wherein said second control system comprises the power supply, temperature detect switch (TDS) and the electrical switch that are connected by wire.
Low-temperature starting device for air-cooled in the present invention, wherein said heating wire is provided with multiple, and it is evenly arranged on intake duct.
Air-cooled diesel engine cold-starting method in the present invention, comprises the following steps:
When temperature is more than-15 DEG C, only enable flame preheating device, electrical system starts Flame preheating plug electrified regulation;
When the temperature of Flame preheating plug reaches 800 ~ 900 DEG C, start diesel engine, diesel oil pumps by the oil transfer pump of diesel engine;
The diesel oil pumped sprays into intake duct after oil nozzle atomization;
Formation flame is lighted by Flame preheating plug after diesel oil after atomization mixes with air;
Flame flows to into cylinder of diesel engine inside with air;
When temperature is-35 DEG C ~-15 DEG C, under the prerequisite of enabling flame preheating device, enable electric heating Preheating unit again;
Heating wire in electric heating Preheating unit heats the air in intake duct;
Air after heating is lighted by Flame preheating plug after mixing with the diesel oil after atomization.
The present invention adopts double mode charge heating mode, and pattern one uses at cold area (more than-15 DEG C), is heated air inlet path for diesel engine by flame preheating device; Pattern two uses extremely cold area (-35 DEG C ~-15 DEG C), and jointly heated diesel engine intake by flame preheating device and electric heating Preheating unit, two kinds of patterns all can make diesel engine start fast, smoothly at low ambient temperatures.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of low-temperature starting device for air-cooled in the present invention.
Embodiment
As shown in Figure 1, low-temperature starting device for air-cooled in the present invention comprises flame preheating device and electric heating Preheating unit, described flame preheating device and electric heating Preheating unit are all arranged in the intake duct 1 of diesel engine, air in described intake duct 1 flows to flame preheating device from electric heating Preheating unit, the oil nozzle of diesel engine is located between electric heating Preheating unit and flame preheating device, described flame preheating device comprises Flame preheating plug 3, electrical system and the first control system, described electrical system is used for heating flame heater plug 3, described first control system is for controlling the temperature of Flame preheating plug 3, described electric heating Preheating unit comprises heater 4, heating wire 2 and the second control system, described heater 4 is connected with heating wire 2, the heating-up temperature of described second control system control heater 4 pairs of heating wires 2.
First control system comprises the power supply, temperature detect switch (TDS) and the electrical switch that are connected by wire, and the effect of the first control system, mainly after the temperature of Flame preheating plug reaches specified value, is heated power-off, no longer heats, and saves electricity, extends its working life.
Second control system comprises the power supply, temperature detect switch (TDS) and the electrical switch that are connected by wire, and the Main Function of the second control system is when external temperature reaches-35 DEG C ~-15 DEG C, and electric heating Preheating unit is opened, and saves electric power.
First and second above-mentioned control system is prior art, and at this, to its structure, it will not go into details.
Low-temperature starting device for air-cooled in the present invention, wherein said heating wire 2 is provided with multiple, and it is evenly arranged on intake duct 1.
Air-cooled diesel engine cold-starting method in the present invention, comprises the following steps:
When temperature is more than-15 DEG C, only enable flame preheating device, electrical system starts Flame preheating plug 3 electrified regulation;
When the temperature of Flame preheating plug 3 reaches 800 ~ 900 DEG C, start diesel engine, diesel oil pumps by the oil transfer pump of diesel engine;
The diesel oil pumped sprays into intake duct 1 after oil nozzle atomization;
Formation flame is lighted by Flame preheating plug 3 after diesel oil after atomization mixes with air;
Flame flows to into cylinder of diesel engine inside with air;
When temperature is-35 DEG C ~-15 DEG C, under the prerequisite of enabling flame preheating device, enable electric heating Preheating unit again;
Air in heating wire in electric heating Preheating unit 2 pairs of intake ducts 1 heats;
Air after heating is lighted by Flame preheating plug 3 after mixing with the diesel oil after atomization.
The present invention adopts double mode charge heating mode, and pattern one uses at cold area (more than-15 DEG C), is heated air inlet path for diesel engine 1 by flame preheating device; Pattern two uses extremely cold area (-35 DEG C ~-15 DEG C), and jointly heated diesel engine intake by flame preheating device and electric heating Preheating unit, two kinds of patterns all can make diesel engine start fast, smoothly at low ambient temperatures.
Air-cooled diesel engine cold-starting method first Application in the present invention, in certain model motor, makes air-cooled diesel engine can quick starting in 5min under-35 DEG C of environment, and under test room's environment, Successful startup rate reaches 100%.Have preheat time short, mobility is good, the features such as environmental suitability is strong.
Introduce the working procedure of flame preheating device and electric heating Preheating unit below:
1. flame preheating device
Flame preheating device makes diesel oil at the device of intake duct 1 combustion heating air inlet by Flame preheating plug 3, and every side intake duct 1 suction port arranges a Flame preheating plug 3.
After preheat starting switch connects preheating shelves, electrical system starts Flame preheating plug 3 electrified regulation, and when Flame preheating plug 3 temperature reaches 800-900 DEG C, electrical system can be piloted engine by pre-thermal light prompting.Pilot control preheat starting switch is to start gear, starter motor drags engine rotation, diesel oil pumps by engine fuel transfer pump simultaneously, by Flame preheating plug 3, diesel oil atomization is sprayed into intake duct 1, formation flame is lighted by Flame preheating plug 3 after diesel oil mixes with air, enter motor with charge air flow, cylinder inner air is heated up instantaneously, is beneficial to engine start.
2. electric heating Preheating unit
Electric heating Preheating unit is the device that the air in grid type electrical thermal alloy heater 4 by installing additional in intake duct and heating wire 2 pairs of intake ducts 1 heats, it is made up of heater 4, heating wire 2 and control system, every side intake duct 1 suction port arranges a heater 4, every side arranges many pieces of electrical heating wires 2 simultaneously, is evenly arranged in respectively on intake duct 1.Grid type electrical thermal alloy heater 4 is that the heat energy utilizing the joule effect that electric current flows through conductor to produce heats air.This heater 4 adopts comparatively advanced electrical thermal alloy and new material insulating ceramics, has good oxidative stability and corrosion resistance, has that heating time is short, heat hot efficiency is high, and structure is simple and on features such as the air inlet impact of motor are little.
Under extremely low temperature environmental conditions (-35 DEG C ~-15 DEG C), connect low temperature air inlet preheating switch, heater 4 is started working, heater 4 temperature up to 700 DEG C, can heat the air in intake duct 1, when electric heater by the air heating in intake duct 1 to higher temperature time, pilot control preheat starting switch is to start gear, hot air in intake duct 1 enters engine cylinder thereupon and participates in burning, is beneficial to fuel-oil atmozation, burning, is beneficial to engine start.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (5)
1. a low-temperature starting device for air-cooled, it is characterized in that: comprise flame preheating device and electric heating Preheating unit, described flame preheating device and electric heating Preheating unit are all arranged in the intake duct (1) of diesel engine, air in described intake duct flows to flame preheating device from electric heating Preheating unit, the oil nozzle of diesel engine is located between electric heating Preheating unit and flame preheating device, described flame preheating device comprises Flame preheating plug (3), electrical system and the first control system, described electrical system is used for heating flame heater plug (3), described first control system is for controlling the temperature of Flame preheating plug, described electric heating Preheating unit comprises heater, heating wire (2) and the second control system, described heater is connected with heating wire, described second control system control heater is to the heating-up temperature of heating wire.
2. low-temperature starting device for air-cooled according to claim 1, is characterized in that: described first control system comprises the power supply, temperature detect switch (TDS) and the electrical switch that are connected by wire.
3. low-temperature starting device for air-cooled according to claim 2, is characterized in that: described second control system comprises the power supply, temperature detect switch (TDS) and the electrical switch that are connected by wire.
4. low-temperature starting device for air-cooled according to claim 3, is characterized in that: described heating wire (2) is provided with multiple, and it is evenly arranged on intake duct (1).
5. an air-cooled diesel engine cold-starting method, is characterized in that, comprises the following steps:
When temperature is more than-15 DEG C, only enable flame preheating device, electrical system starts Flame preheating plug (3) electrified regulation;
When the temperature of Flame preheating plug (3) reaches 800 ~ 900 DEG C, start diesel engine, diesel oil pumps by the oil transfer pump of diesel engine;
The diesel oil pumped sprays into intake duct (1) after oil nozzle atomization;
Formation flame is lighted by Flame preheating plug (3) after diesel oil after atomization mixes with air;
Flame flows to into cylinder of diesel engine inside with air;
When temperature is-35 DEG C ~-15 DEG C, under the prerequisite of enabling flame preheating device, enable electric heating Preheating unit again;
Heating wire (2) in electric heating Preheating unit heats the air in intake duct (1);
Air after heating is lighted by Flame preheating plug (3) after mixing with the diesel oil after atomization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837360.1A CN105484923B (en) | 2015-11-26 | 2015-11-26 | Low-temperature starting device for air-cooled and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837360.1A CN105484923B (en) | 2015-11-26 | 2015-11-26 | Low-temperature starting device for air-cooled and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105484923A true CN105484923A (en) | 2016-04-13 |
| CN105484923B CN105484923B (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510837360.1A Active CN105484923B (en) | 2015-11-26 | 2015-11-26 | Low-temperature starting device for air-cooled and method |
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| Country | Link |
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| CN (1) | CN105484923B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005830A (en) * | 2017-12-20 | 2018-05-08 | 东风汽车集团有限公司 | The embedded cold starting control system of intelligence |
| CN114320702A (en) * | 2021-12-17 | 2022-04-12 | 中国北方发动机研究所(天津) | Air inlet heating control method for diesel engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094198A (en) * | 1991-04-26 | 1992-03-10 | Cummins Electronics Company, Inc. | Air intake heating method and device for internal combustion engines |
| JPH06282272A (en) * | 1993-08-06 | 1994-10-07 | Star Micronics Co Ltd | Sounding body |
| US5862786A (en) * | 1996-04-26 | 1999-01-26 | Deutz Ag | Cold starting assistance for diesel engines |
| CN101532457A (en) * | 2009-04-13 | 2009-09-16 | 胡洪兴 | Multiple fuel oil flame preheated plug electronically and intelligently controlled cold start device for diesel motor |
| CN103573525A (en) * | 2013-11-29 | 2014-02-12 | 陕西北方动力有限责任公司 | Low-temperature starting device of air-cooling diesel engine |
-
2015
- 2015-11-26 CN CN201510837360.1A patent/CN105484923B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094198A (en) * | 1991-04-26 | 1992-03-10 | Cummins Electronics Company, Inc. | Air intake heating method and device for internal combustion engines |
| JPH06282272A (en) * | 1993-08-06 | 1994-10-07 | Star Micronics Co Ltd | Sounding body |
| US5862786A (en) * | 1996-04-26 | 1999-01-26 | Deutz Ag | Cold starting assistance for diesel engines |
| CN101532457A (en) * | 2009-04-13 | 2009-09-16 | 胡洪兴 | Multiple fuel oil flame preheated plug electronically and intelligently controlled cold start device for diesel motor |
| CN103573525A (en) * | 2013-11-29 | 2014-02-12 | 陕西北方动力有限责任公司 | Low-temperature starting device of air-cooling diesel engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005830A (en) * | 2017-12-20 | 2018-05-08 | 东风汽车集团有限公司 | The embedded cold starting control system of intelligence |
| CN114320702A (en) * | 2021-12-17 | 2022-04-12 | 中国北方发动机研究所(天津) | Air inlet heating control method for diesel engine |
| CN114320702B (en) * | 2021-12-17 | 2023-05-16 | 中国北方发动机研究所(天津) | Air inlet heating control method for diesel engine |
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| Publication number | Publication date |
|---|---|
| CN105484923B (en) | 2017-09-12 |
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