CN201687568U - Pneumatic fuel oil hybrid power system for recycling waste heat of internal-combustion engine - Google Patents
Pneumatic fuel oil hybrid power system for recycling waste heat of internal-combustion engine Download PDFInfo
- Publication number
- CN201687568U CN201687568U CN2010201582524U CN201020158252U CN201687568U CN 201687568 U CN201687568 U CN 201687568U CN 2010201582524 U CN2010201582524 U CN 2010201582524U CN 201020158252 U CN201020158252 U CN 201020158252U CN 201687568 U CN201687568 U CN 201687568U
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- China
- Prior art keywords
- fuel oil
- pneumatic
- linear actuator
- power system
- oil cylinder
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 46
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 12
- 239000002918 waste heat Substances 0.000 title claims abstract description 10
- 238000004064 recycling Methods 0.000 title claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 claims description 11
- 230000011664 signaling Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008961 swelling Effects 0.000 abstract 1
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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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
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model relates to a pneumatic fuel oil hybrid power system and provides a pneumatic fuel oil hybrid power system for recycling waste heat of an internal-combustion engine. The system comprises fuel oil cylinders and a pneumatic cylinder. Two fuel oil cylinders and one pneumatic cylinder are used as a power unit of the system, wherein exhaust valves of the fuel oil cylinders are both connected to an inlet valve of the pneumatic cylinder through an exhaust pipe and the two fuel oil cylinders have reverse stroke directions. The utility model directly guides the exhausted gas of the fuel oil cylinder into the pneumatic cylinder so as to swell secondarily, directly uses the heat energy and pressure of the exhausted gas, and solves the problem of low energy grade by using other methods to recycle the waste heat. An air valve is added on the pneumatic cylinder which can supply pressure when the exhausting pressure of the fuel oil cylinder is over-low, so as to avoid the compressing negative work for low-pressure exhaustion in the process of secondarily swelling. The inlet and outlet valves are electronically controlled, therefore the phase precision is matched and the overall efficiency is extremely optimized.
Description
Technical field
The utility model relates to pneumatic and fuel mixed power system, particularly a kind of pneumatic and fuel mixed power system of recycling waste heat of internal combustion engine.
Background technique
The energy crisis of global range and environmental pollution problem are very urgent; and automobile is as main pollutant emission source; its dual-pressure to the energy and environmental problem can not be ignored, and hybrid vehicle has been subjected to increasing concern as a kind of dynamic mode of energy-conserving and environment-protective.Defectives such as on the other hand, pressurized air is as a kind of free of contamination clean energy resource, and its application prospect is quite extensive, yet himself also has energy density low, and energy conversion efficiency is low.Existing studies show that can produce a large amount of used heat in the internal combustion engine process, and this also is a kind of waste to the energy undoubtedly, if these used heat are reclaimed, can reach energy saving simultaneously, and the purpose that promotes the compressed air engine performance.Chinese patent [CN1398740] and Chinese patent [CN101225767] have proposed pneumatic/fuel mixed power system pattern respectively, its basic principle is that the calory burning with the high-temperature exhaust air of internal-combustion engine and internal-combustion engine is applied to heat the air inlet of air motor by heat exchange module, thereby reaches the purpose that improves energy utilization efficiency.Yet, because heat energy itself is the lower energy of a kind of energy grade, the further experimental verification that awaits of the energy recovery effect of above-mentioned pattern.The utility model proposes a kind of novel pneumatic/fuel hybrid combined cycle---compressed air engine is directly introduced in the exhaust of internal-combustion engine, made it in pneumatic linear actuator, carry out reexpansion, thereby make full use of the heat energy and the pressure energy of these exhausts; In addition, pneumatic linear actuator can also be brought into play the effect of reclaiming fuel oil cylinder cooling system waste heat.
The model utility content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, and a kind of pneumatic fuel mixed power system of recycling waste heat of internal combustion engine is provided.
Be the technical solution problem, the utility model provides a kind of pneumatic and fuel mixed power system of recycling the internal combustion exhaust, comprises fuel oil cylinder and pneumatic linear actuator; This system is a power unit with two fuel oil cylinders and pneumatic linear actuator, and the exhaust valve of described fuel oil cylinder all links to each other with the intake valve of pneumatic linear actuator by outlet pipe, and two fuel oil cylinders have opposite stroke directions.
In the utility model, described pneumatic linear actuator is provided with air valve, and air valve links to each other with vehicle-mounted source of the gas by pipeline; Establish pressure transducer in the cylinder of pneumatic linear actuator, pressure transducer is connected to control circuit by signaling line, and control circuit links to each other with air valve by signaling line.
In the utility model, comprise based on the pneumatic of aforementioned system and fuel hybrid implementation method: the exhaust of fuel oil cylinder directly enters pneumatic linear actuator and carries out reexpansion, drives the pneumatic linear actuator acting; After reexpansion was finished in the exhaust of first fuel oil cylinder, the exhaust of second fuel oil cylinder entered pneumatic linear actuator in an identical manner and carries out reexpansion; In a complete work cycle of fuel oil cylinder, pneumatic linear actuator is finished work cycle twice.
In the utility model, when when fuel oil cylinder exhaust pressure is lower than setting value, corresponding pressure transducer is passed to control circuit with signal, and control circuit is opened air valve, make the pressurized air in the vehicle-mounted source of the gas enter pneumatic linear actuator, low pressure exhaust is implemented pressure can replenish by air valve.
In the utility model, when engine braking, the oil circuit control circuit can be implemented oil-break control to two fuel oil cylinders, and the fuel oil cylinder is pressed into vehicle-mounted source of the gas with the fresh charge that sucks, and realizes compressed-air actuated replenishing.
In the utility model, exhaust valve and intake valve are accurately controlled,, made overall efficiency reach optimum in the hope of reaching the most accurate phase matching with electronically controlled mode.
In the utility model, be provided with heat exchange module between fuel oil cylinder and the pneumatic linear actuator, when fuel oil cylinder cooling liquid was flowed through this module, the waste heat that fuel oil cylinder cooling liquid is carried can be absorbed by pneumatic linear actuator via heat exchange module, made this part waste heat also can access recycling.Heat exchange module is related domain current techique, and multiple way of realization can be arranged, and as heat exchanger, surround the chuck of pneumatic linear actuator etc., does not repeat them here.
Because the high-temperature exhaust air of internal-combustion engine has certain pressure, if directly be discharged in the atmosphere, can cause great waste and pollution, therefore, the utility model links to each other with the intake valve of pneumatic linear actuator by the exhaust valve of pipeline with the fuel oil cylinder, make the exhaust of fuel oil cylinder can directly enter pneumatic linear actuator and carry out reexpansion, make full use of heat energy and pressure energy in the exhaust of fuel oil cylinder, in the hope of reaching maximized energy recovery.
Than other forms of hybrid mode, the utility model beneficial effect is:
(1) pneumatic linear actuator is directly introduced in the exhaust of fuel oil cylinder and carried out reexpansion, directly utilized heat energy and the pressure energy in the exhaust, remedied the low problem of energy grade that otherwise reclaims exhaust heat and faced;
(2) on pneumatic linear actuator, set up air valve in addition, can cross in fuel oil cylinder exhaust pressure and it be carried out pressure when low and can replenish, made low pressure exhaust in the reexpansion process, can not produce the compression negative work.
(3) the inlet and outlet door is implemented electronic control, make phase place accurately mate, at utmost optimize overall efficiency.
Description of drawings
Fig. 1 is a realization schematic diagram of the present utility model.
Reference character is among the figure: 1 fuel oil cylinder, 2 outlet pipes, 3 air valves, 4 outlet pipes, 5 fuel oil cylinders, 6 pneumatic linear actuators, 7 exhaust valves, 8 intake valves, 9 intake valves, 10 exhaust valves.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
In Fig. 1, the exhaust valve 7,10 of fuel oil cylinder 1 and fuel oil cylinder 5 links to each other with the intake valve 8,9 of pneumatic linear actuator 6 by outlet pipe 2,4 respectively.When fuel oil cylinder 1 entered exhaust stroke, exhaust valve 7 was opened, and the high-temperature exhaust air of fuel oil cylinder 1 enters outlet pipe 2, and pneumatic linear actuator intake valve 8 is opened simultaneously, made the exhaust of fuel oil cylinder 1 can enter pneumatic linear actuator 6, carried out reexpansion; Because pneumatic linear actuator is a two-stroke, therefore after reexpansion is finished in the exhaust of fuel oil cylinder 1, the exhaust of fuel oil cylinder 5 also can enter pneumatic linear actuator 6 in an identical manner and carry out reexpansion, and promptly in a complete work cycle of fuel oil cylinder, pneumatic linear actuator is finished work cycle twice.
When motor is in running on the lower load, corresponding sensor can be with signals collecting to control circuit, control circuit can be opened air valve 3, make the pressurized air in the vehicle-mounted source of the gas enter pneumatic linear actuator 6 by air valve 3, low pressure exhaust is implemented pressure can replenish the negative work of avoiding low pressure exhaust to bring; In addition, when engine braking, control circuit can be implemented oil-break control to fuel oil cylinder 1 and fuel oil cylinder 5, and the fuel oil cylinder then can be pressed into vehicle-mounted source of the gas with the fresh charge that sucks, and realizes compressed-air actuated replenishing.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (3)
1. pneumatic fuel mixed power system of recycling waste heat of internal combustion engine, comprise fuel oil cylinder and pneumatic linear actuator, it is characterized in that this system is a power unit with two fuel oil cylinders and pneumatic linear actuator, the exhaust valve of described fuel oil cylinder all links to each other with the intake valve of pneumatic linear actuator by outlet pipe.
2. pneumatic fuel mixed power system according to claim 1 is characterized in that described pneumatic linear actuator is provided with air valve, and air valve links to each other with vehicle-mounted source of the gas by pipeline; Establish pressure transducer in the cylinder of pneumatic linear actuator, pressure transducer is connected to control circuit by signaling line, and control circuit links to each other with air valve by signaling line.
3. pneumatic fuel mixed power system according to claim 1 is characterized in that, is provided with heat exchange module between fuel oil cylinder and pneumatic linear actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201582524U CN201687568U (en) | 2010-04-13 | 2010-04-13 | Pneumatic fuel oil hybrid power system for recycling waste heat of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201582524U CN201687568U (en) | 2010-04-13 | 2010-04-13 | Pneumatic fuel oil hybrid power system for recycling waste heat of internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687568U true CN201687568U (en) | 2010-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201582524U Expired - Fee Related CN201687568U (en) | 2010-04-13 | 2010-04-13 | Pneumatic fuel oil hybrid power system for recycling waste heat of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845988A (en) * | 2010-04-13 | 2010-09-29 | 浙江大学 | Pneumatic and fuel oil hybrid system for recycling waste heat of internal combustion engine and implementing method thereof |
-
2010
- 2010-04-13 CN CN2010201582524U patent/CN201687568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845988A (en) * | 2010-04-13 | 2010-09-29 | 浙江大学 | Pneumatic and fuel oil hybrid system for recycling waste heat of internal combustion engine and implementing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130413 |