CN104963757A - Changeable combustion chamber device and method for diesel capable of using multiple fuels - Google Patents
Changeable combustion chamber device and method for diesel capable of using multiple fuels Download PDFInfo
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- CN104963757A CN104963757A CN201510381755.5A CN201510381755A CN104963757A CN 104963757 A CN104963757 A CN 104963757A CN 201510381755 A CN201510381755 A CN 201510381755A CN 104963757 A CN104963757 A CN 104963757A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention discloses a method for a diesel capable of using multiple fuels. The method is characterized in that a cylinder cover of the diesel is provided with an in-cylinder changeable combustion chamber or an out-cylinder changeable combustion chamber which can change the volume of the combustion chamber, therefore, the diesel combustion compression ratio in an original combustion chamber is lowered below 12:1 from 17:1, and the effect that the diesel can combust the multiple fuels and be driven in parallel can be achieved. The changeable combustion chamber device and method for the diesel capable of using the multiple fuels have the advantages that the inertial thinking of people that the diesel can only use diesel oil is changed, the energy use range is widened, the energy structure in China is changed, and particularly, a way is added for the usage that coal and coal gangue make methyl alcohol in China; it is worth mentioning that after people go through the most serious historical haze raging half of China, people look forward to controlling car engine exhaust pipes which exhaust smoke continuously to reduce PM2.5 in the atmosphere. A diesel engine can achieve the diversified usage of the fuels, and meanwhile the optimal effect of tail gas clean exhaust can be brought; the air pollution is relieved, and the positive effect can be achieved in haze governance.
Description
Technical field
The present invention relates to Diesel Engine Technique Field, is the device and method that a kind of diesel engine can use pluralities of fuel variable combustion specifically.
Background technique
The diversified use of fuel comprehensive crossover has been created at present on petrol engine, as: gasoline, rock gas, liquefied petroleum gas, Aalcohols fuel ... Deng.The effect that tail gas cleans discharge can also be served while being used alternatingly of these fuel.
But with regard in diesel engine, diesel oil just can only be used as fuel, comprehensively variation can not use pluralities of fuel, because this kind of fuel of diesel oil sprays into air by producing burning in the high temperature of high compression, just make engine running, the fuel of this namely pressured contracting outburst, its corresponding countercylinder compression ratio requires it is at more than 17:1.But its deficiency is that the discharge of deleterious particle thing is large.
Petrol engine uses and produces the fuel of outburst as gasoline, rock gas, liquefied petroleum gas, Aalcohols fuel with high voltage spark ignition ... Deng.Because this class A fuel A is by igniting outburst, the requirement of their countercylinder compression ratios can not be too high, can only be in below 12:1.On a petrol engine, it can realize the different fuel of use two kinds.
Its compression ratio of diesel engine, more confidential than gasoline engine much higher, require at 17:1 or higher, if want in diesel engine, diesel oil to be stopped, convert another fuel, as gasoline, rock gas ... Deng substituting, that can not realize, this is also need to solve a lot of particular problems, primary condition its compression ratio must will be reduced to below 12:1, also to add a set of ignition mechanism, what so will realize just becomes petrol engine by diesel engine exactly, except paying very large parts engineering change amount, also diesel engine forever being lost with diesel oil is the condition of fuel.
Summary of the invention
The present invention seeks to study the use that a kind of combustion method changing firing chamber just can continue to retain diesel fuel in diesel engine, arbitrarily can realize again being used alternatingly of the pluralities of fuel broken out by igniting, not need again the diesel engine paying the larger change amount to parts engineering can use the device and method of pluralities of fuel.
Described change firing chamber is variable combustion and the outer variable combustion two kinds of cylinder in cylinder
Diesel engine of the present invention can use variable combustion chamber device (Fig. 1) in the cylinder of pluralities of fuel: comprise former firing chamber, spark plug, variable combustion, variable combustion open valve, variable combustion open valve controller, cylinder head, piston; The cylinder head of former firing chamber is provided with spark plug, variable combustion to be arranged on cylinder head and and former firing chamber communicate, variable combustion open valve is placed in variable combustion and is connected with cylinder head, and variable combustion open valve controller 5 is connected with variable combustion open valve
Variable combustion (Fig. 2): the cylinder head 6 of former firing chamber 1 is provided with variable combustion 3, variable combustion 3 has a port to be connected with former firing chamber 1, variable combustion open valve 4 is arranged in variable combustion 3, spark plug 2 is arranged in variable combustion open valve 4, spark plug sparking polar region communicates with variable combustion 3, and variable combustion open valve 4 is connected with variable combustion open valve controller 5.
Along with petrol engine, diesel engine technologies constantly develop, in order to make enough air inlets in cylinder, smooth gas discharge, novel petrol engine, diesel engine are all provided with dual valve configuration, engine cylinder tops has all been accounted for by dual valve, seldom there is free remaining part to assign to change firing chamber, therefore can only open up a pipeline and firing chamber is drawn outside cylinder.This generates the design imagination of cylinder external burning room.
Diesel engine of the present invention can use outer variable combustion (Fig. 4) device of the cylinder of pluralities of fuel: comprising: former firing chamber, spark plug, cylinder external burning room, cylinder external burning room opening controller, cylinder head, piston; Cylinder external burning room opening controller is arranged in cylinder head and also communicates with former firing chamber, and cylinder external burning room opening controller is connected with cylinder external burning room and communicates, and room is provided with spark plug to cylinder external burning.
Diesel engine of the present invention can use the method for pluralities of fuel, be included in cylinder of diesel engine to cover and be provided with in cylinder or cylinder external enwergy changes the variable combustion of combustion chamber volume, to make diesel combustion compression ratio in former firing chamber by 17:1, can below 12:1 be dropped to, realize diesel oil function Enough and use multifuel firing to spout row cutting.
Diesel engine of the present invention can use pluralities of fuel method, comprising:
Comprise variable combustion chamber device in cylinder that diesel engine can use pluralities of fuel, comprise former firing chamber 1, spark plug 2, variable combustion 3, variable combustion opens 4, variable combustion open valve controller 5, cylinder head 6, piston 7;
When motor with diesel oil be fuel combustion operate time, variable combustion open valve is closed condition, the compression ratio of motor remains the compression ratio state of original 17:1 ﹙ or Geng Gao ﹚, diesel oil is spray combustion in the high temperature of the high compression ratio of 17:1, and diesel engine plays the normal operation of its original habit;
If motor needs conversion with gasoline, rock gas ... Deng with light a fire outburst fuel time, at this moment variable combustion is opened and is sent out controller, by ECU controller, variable combustion open valve is opened, provide the space of variable combustion, expand the volume of firing chamber, at this moment former firing chamber adds the volume of variable combustion, below 12:1 is dropped to the ratio of cylinder total volume, ECU controller has opened again plug ignition system simultaneously, owing to there is plug ignition, open the compression ratio condition that variable combustion is suitable for igniting outburst fuel, make diesel engine except utilizing diesel fuel, gasoline can also be used, rock gas, alcohols ... etc. another kind of fuel of different nature.
Diesel engine of the present invention can use pluralities of fuel method, comprising:
Diesel engine can use the outer variable combustion chamber device of the cylinder of pluralities of fuel, comprising: former firing chamber 1, spark plug 2, cylinder external burning room 3, cylinder external burning room opening controller 4, cylinder head 5, piston 6;
When diesel engine with diesel oil be fuel operate time, cylinder external burning room open valve controller is closed condition (being controlled by ECU controller), the compression ratio of motor remains the compression ratio state of original 17:1 ﹙ or Geng Gao ﹚, and the diesel engine of burning diesel oil runs well according to original personality;
When diesel engine needs conversion with gasoline, rock gas, alcohols ... Deng igniting outburst fuel time, at this moment cylinder external burning room opening controller, cylinder external burning room open valve is opened by (by ECU controller), provide the space of cylinder external burning room 3, the volume of firing chamber increases, at this moment former firing chamber adds the volume of cylinder external burning room, below 12:1 is dropped to the ratio of cylinder total volume, ECU controller is while opening cylinder external burning room open valve, also opens the ignition system of spark plug, owing to opening cylinder external burning room, there is the compression ratio condition being suitable for igniting outburst fuel, like this, the petrolic personality that just made diesel engine change over, therefore make diesel engine except retaining and using diesel fuel, gasoline can also be used, rock gas, alcohols ... etc. another kind of fuel of different nature.
Diesel engine of the present invention can use the advantage of pluralities of fuel variable combustion device and method, the diesel engine changing people can only uniquely use diesel oil inertial thinking, widen energy using scope, change China Neng Yuan Jie Ju, particularly the use of China's coal and gangue making methyl alcohol adds again an outlet, after it is worth mentioning that " in history the maximum haze " having worried along and wreaked havoc half China, people earnestly look forward to keeping a grip on the gas car engine outlet pipe that thumping is smoldered, and reduce the PM2.5 in air.Diesel engine, while realizing fuel variation use, can also be brought tail gas to clean the optimum efficiency of discharge, alleviate atmospheric pollution, administers haze and plays a positive role.
Accompanying drawing explanation
Fig. 1 is variable combustion Jie Ju schematic diagram in cylinder.
Fig. 2 is variable combustion non-opening state Jie Ju schematic diagram in another kind of cylinder.
Fig. 3 is that in another kind of cylinder, variable combustion opening state becomes large space Jie Ju schematic diagram
Fig. 4 is cylinder external burning room Jie Ju schematic diagram.
Embodiment
Embodiment one
Shown in root Ju variable combustion Fig. 1, a kind of diesel engine can use pluralities of fuel variable combustion chamber device, and comprise former firing chamber 1, spark plug 2, variable combustion 3, variable combustion open valve 4, variable combustion can open valve control 5, cylinder head 6, piston, 7; The spark plug 2 that the cylinder head 6 of former firing chamber 1 is arranged, variable combustion open valve is placed in variable combustion and is connected with cylinder head, and variable combustion open valve controller 5 is connected with variable combustion open valve,
Variable combustion (Fig. 2): the cylinder head 6 of former firing chamber 1 is provided with variable combustion 3, variable combustion 3 has a port to be connected with former firing chamber 1, variable combustion open valve 4 is arranged in variable combustion 3, spark plug 2 is arranged in variable combustion open valve 4, spark plug sparking polar region communicates with variable combustion 3, and variable combustion open valve 4 is connected with variable combustion open valve controller 5.
When motor with diesel oil be fuel combustion operate time, variable combustion open valve 4 is closed conditions, the compression ratio of motor remains the compression ratio state of original 17:1 ﹙ or Geng Gao ﹚, diesel oil is spray combustion in the high temperature of the high compression ratio of 17:1, and diesel engine plays the normal operation of its original habit.
If motor needs conversion with gasoline, rock gas, alcohols ... Deng with light a fire outburst fuel time, at this moment variable combustion is opened and is sent out controller 5, by ECU controller, variable combustion open valve 4 is opened, provide the space of variable combustion 3, expand the volume of firing chamber, at this moment former firing chamber adds the volume of variable combustion, below 12:1 is dropped to the ratio of cylinder total volume, ECU controller has opened again plug ignition system simultaneously, owing to there is plug ignition, open the compression ratio condition that variable combustion is suitable for igniting outburst fuel, make diesel engine except utilizing diesel fuel, gasoline can also be used, rock gas ... etc. another kind of fuel of different nature.
Embodiment two,
Along with petrol engine, diesel engine technologies constantly develop, in order to make enough air inlets in cylinder, smooth gas discharge, novel petrol engine, diesel engine are all provided with dual valve configuration, engine cylinder tops has all been accounted for by dual valve, seldom there is free remaining part to assign to change firing chamber, therefore can only open up a pipeline and firing chamber is drawn outside cylinder.This generates the design imagination of cylinder external burning room.
Cylinder external burning room (Fig. 4) device: comprising: former firing chamber 1, spark plug 2, cylinder external burning room 3, cylinder external burning room opening controller 4, cylinder head 5, piston 6; Cylinder external burning room opening controller is arranged in cylinder head and also communicates with former firing chamber, and cylinder external burning room opening controller is connected with cylinder external burning room and communicates, and room is provided with spark plug to cylinder external burning.
When diesel engine needs conversion with gasoline, rock gas ... Deng igniting outburst fuel time, at this moment cylinder external burning room opening controller 4, cylinder external burning room open valve 4 is opened by (by ECU controller), provide the space of cylinder external burning room 3, the volume of firing chamber increases, at this moment former firing chamber adds the volume of cylinder external burning room, below 12:1 is dropped to the ratio of cylinder total volume, ECU controller is while opening cylinder external burning room open valve, also opens the ignition system of spark plug 2, owing to opening cylinder external burning room, there is the compression ratio condition being suitable for igniting outburst fuel, like this, the petrolic personality that just made diesel engine change over, therefore make diesel engine except retaining and using diesel fuel, gasoline can also be used, rock gas, alcohols ... etc. another kind of fuel of different nature.
Claims (5)
1. diesel engine can use a variable combustion chamber device in pluralities of fuel cylinder, comprises former firing chamber, it is characterized in that: also have spark plug, variable combustion, variable combustion open valve, variable combustion open valve controller, cylinder head, piston; The cylinder head of former firing chamber is provided with spark plug, variable combustion to be arranged on cylinder head and and former firing chamber communicate, variable combustion open valve is contained in variable combustion Inner and is connected with cylinder head, and variable combustion open valve controller 5 is connected with variable combustion open valve; Or the cylinder head of former firing chamber is provided with variable combustion, variable combustion has a port to be connected with former firing chamber, variable combustion open valve is arranged on variable combustion indoor, spark plug is arranged in variable combustion open valve, spark plug sparking pole communicates with variable combustion, and variable combustion open valve is connected with variable combustion open valve controller.
2. diesel engine can use a cylinder external burning chamber device for pluralities of fuel, comprising: former firing chamber 1, is characterized in that: also have spark plug, cylinder external burning room, cylinder external burning room opening controller, cylinder head, piston; Cylinder external burning room open valve controller is arranged in cylinder head and also communicates with former firing chamber, and cylinder external burning room opening controller is connected with cylinder external burning room and communicates, and room is provided with spark plug to cylinder external burning.
3. diesel engine can use a method for pluralities of fuel, it is characterized in that; Be included in cylinder of diesel engine to cover and be provided with in cylinder or cylinder external enwergy changes the variable combustion of combustion chamber volume, to make the diesel combustion compression ratio in former firing chamber drop to below 12:1 by 17:1, realize diesel oil function Enough and use multifuel firing to spout row cutting.
4. a Ju a kind of diesel engine according to claim 3 can use pluralities of fuel method, comprising:
Diesel engine can use variable combustion chamber device in pluralities of fuel cylinder, comprises former firing chamber, spark plug, variable combustion, and variable combustion opens 4, and variable combustion can open valve control, cylinder head, piston,
When motor with diesel oil be fuel combustion operate time, variable combustion open valve is closed condition, the compression ratio of motor remains the compression ratio state of original 17:1, and diesel oil is spray combustion in the high temperature of the high compression ratio of 17:1, and diesel engine plays the normal operation of its original habit;
If motor needs conversion with gasoline, when rock gas is with the fuel of outburst of lighting a fire, at this moment variable combustion is opened and is sent out controller, by ECU controller, variable combustion open valve is opened, provide the space of variable combustion, expand the volume of firing chamber, at this moment former firing chamber adds the volume of variable combustion, below 12:1 is dropped to the ratio of cylinder total volume, ECU controller has opened again plug ignition system simultaneously, owing to there is plug ignition, open the compression ratio condition that variable combustion is suitable for igniting outburst fuel, make diesel engine except utilizing diesel fuel, gasoline can also be used, the another kind of fuel of different nature of rock gas.
5. a Ju a kind of diesel engine according to claim 3 can use pluralities of fuel method, comprising:
Diesel engine can use the cylinder external burning chamber device of pluralities of fuel, comprising: former firing chamber, spark plug, cylinder external burning room, cylinder external burning room opening controller, cylinder head, piston;
When diesel engine with diesel oil be fuel operate time, cylinder external burning room open valve controller is closed condition, and the compression ratio of motor remains the compression ratio state of original 17:1, and the diesel engine of burning diesel oil runs well according to original personality;
When diesel engine needs conversion with gasoline, during the fuel that natural gas fired breaks out, at this moment cylinder external burning room opening controller, cylinder external burning room open valve is opened, provide the space of cylinder external burning room 3, the volume of firing chamber increases, at this moment former firing chamber adds the volume of cylinder external burning room, below 12:1 is dropped to the ratio of cylinder total volume, ECU controller is while opening cylinder external burning room open valve, also opens the ignition system of spark plug, owing to opening cylinder external burning room, there is the compression ratio condition being suitable for igniting outburst fuel, like this, the petrolic personality that just made diesel engine change over, therefore make diesel engine except retaining and using diesel fuel, gasoline can also be used, the another kind of fuel of different nature of rock gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381755.5A CN104963757A (en) | 2015-07-02 | 2015-07-02 | Changeable combustion chamber device and method for diesel capable of using multiple fuels |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510381755.5A CN104963757A (en) | 2015-07-02 | 2015-07-02 | Changeable combustion chamber device and method for diesel capable of using multiple fuels |
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| CN104963757A true CN104963757A (en) | 2015-10-07 |
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| CN201510381755.5A Pending CN104963757A (en) | 2015-07-02 | 2015-07-02 | Changeable combustion chamber device and method for diesel capable of using multiple fuels |
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Citations (9)
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| US6981484B2 (en) * | 2001-11-14 | 2006-01-03 | Barrack Combustion Process Pty Ltd. | Internal combustion engine with divided combustion chamber |
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| CN102741525A (en) * | 2009-09-11 | 2012-10-17 | 丰田自动车株式会社 | Combustion pressure controller |
| CN102770641A (en) * | 2010-11-25 | 2012-11-07 | 丰田自动车株式会社 | Internal combustion engine |
| CN104061058A (en) * | 2014-06-05 | 2014-09-24 | 李群 | Premixing compression internal-combustion engine and operation method thereof |
| CN104343573A (en) * | 2013-07-24 | 2015-02-11 | 梁天宇 | Slidable cylinder cover type variable compression ratio engine |
| CN104712428A (en) * | 2013-12-15 | 2015-06-17 | 吴小平 | Reverse compression ratio internal combustion engine with throttling cavity and auxiliary crankshaft (timing shaft) |
| CN204704000U (en) * | 2015-07-02 | 2015-10-14 | 刘学文 | Diesel engine can use pluralities of fuel variable combustion chamber device |
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2015
- 2015-07-02 CN CN201510381755.5A patent/CN104963757A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030056749A1 (en) * | 2001-09-21 | 2003-03-27 | Beckertgis Nicholas G. | Hybrid air engine |
| US6981484B2 (en) * | 2001-11-14 | 2006-01-03 | Barrack Combustion Process Pty Ltd. | Internal combustion engine with divided combustion chamber |
| CN102741525A (en) * | 2009-09-11 | 2012-10-17 | 丰田自动车株式会社 | Combustion pressure controller |
| CN102770641A (en) * | 2010-11-25 | 2012-11-07 | 丰田自动车株式会社 | Internal combustion engine |
| JP2012127211A (en) * | 2010-12-13 | 2012-07-05 | Denso Corp | Internal combustion engine |
| CN104343573A (en) * | 2013-07-24 | 2015-02-11 | 梁天宇 | Slidable cylinder cover type variable compression ratio engine |
| CN104712428A (en) * | 2013-12-15 | 2015-06-17 | 吴小平 | Reverse compression ratio internal combustion engine with throttling cavity and auxiliary crankshaft (timing shaft) |
| CN104061058A (en) * | 2014-06-05 | 2014-09-24 | 李群 | Premixing compression internal-combustion engine and operation method thereof |
| CN204704000U (en) * | 2015-07-02 | 2015-10-14 | 刘学文 | Diesel engine can use pluralities of fuel variable combustion chamber device |
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Application publication date: 20151007 |