CN101718234A - Device for converting exhaust waste heat of internal combustion engine into mechanical energy - Google Patents
Device for converting exhaust waste heat of internal combustion engine into mechanical energy Download PDFInfo
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- CN101718234A CN101718234A CN200910073360A CN200910073360A CN101718234A CN 101718234 A CN101718234 A CN 101718234A CN 200910073360 A CN200910073360 A CN 200910073360A CN 200910073360 A CN200910073360 A CN 200910073360A CN 101718234 A CN101718234 A CN 101718234A
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- temperature
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- turbine assembly
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- air outlet
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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 provides a device for converting exhaust waste heat of an internal combustion engine into mechanical energy, which relates to the technical field of thermal energy conversion. The device solves the problems that the conventional internal combustion engine has low thermal conversion efficiency (between 25 and 40 percent) and exhausts a great amount of high-temperature pollution gases to the air due to incomplete combustion. A gas outlet of a small turbine assembly of the device is communicated with the outside air through a high-temperature gas inlet of a high-temperature heat exchanger, a low-temperature gas outlet of the high-temperature heat exchanger, a first high-temperature gas inlet of a low-temperature heat exchanger and a first low-temperature gas outlet of the low-temperature heat exchanger; a main shaft of the small turbine assembly is connected with a main shaft of an impeller assembly; a gas inlet of the impeller assembly is communicated with the outside air; a gas outlet of the impeller assembly is communicated with a gas inlet of a large turbine assembly through a low-temperature gas inlet of the low-temperature heat exchanger, a high-temperature gas outlet of the low-temperature heat exchanger, a low-temperature gas inlet of the high-temperature heat exchanger and a high-temperature gas outlet of the high-temperature heat exchanger; a gas outlet of the large turbine assembly is communicated with the outside air through a second high-temperature gas inlet of the low-temperature heat exchanger and a second low-temperature gas outlet of the low-temperature heat exchanger; and a main shaft of the large turbine assembly is connected with an input shaft of a speed reducing coupler. The device can directly and efficiently convert the exhaust waste heat of the conventional internal combustion engine into the mechanical energy, and the conversion rate can reach 20 to 65 percent.
Description
Technical field
What the present invention relates to is the technical field that thermal power transfer becomes mechanical energy.
Background technique
Existing internal-combustion engine is applied in the every field widely, wherein the quantity of automobile application is maximum, bring many facilities to the human lives, but its heat/machine conversion efficiency generally is between 25%～40%, all the other heat energy of 60%～75% can't utilize and need outwards to discharge, simultaneously can not perfect combustion because of fuel, and temperature is very high, reach more than 600 ℃, its tail gas will discharge a large amount of high temperature dusty gass in air, make air be subjected to serious pollution, it is the one of the main reasons that cause earth environment to warm that tool is added up these.Brought loss and the destruction that to retrieve for human living environment in the future.
Summary of the invention
The present invention is in order to overcome existing internal-combustion engine thermal conversion efficiency low (between 25%～40%), incomplete combustion and in air the problem of a large amount of high temperature dusty gas of discharging.And then proposed a kind of I. C. engine exhaust to be taken the device that thermal conversion becomes mechanical energy.
It is made up of little turbine assembly, impeller assembly, big turbine assembly, cryogenic heat exchanger, high-temperature heat-exchanging 5, deceleration Coupler;
The high-temperature exhaust air outlet of internal-combustion engine is communicated with the suction port of little turbine assembly, the air outlet of little turbine assembly is by the high temperature suction port of high-temperature heat-exchanging, high-temperature heat-exchanging, the low temperature air outlet of high-temperature heat-exchanging, the first high temperature suction port of cryogenic heat exchanger, cryogenic heat exchanger, the first low temperature air outlet of cryogenic heat exchanger is communicated with ambient air, the main shaft of little turbine assembly is connected with the main shaft of impeller assembly, the suction port of impeller assembly is communicated with ambient air, the air outlet of impeller assembly is by the low temperature suction port of cryogenic heat exchanger, cryogenic heat exchanger, the high temperature air outlet of cryogenic heat exchanger, the low temperature suction port of high-temperature heat-exchanging, high-temperature heat-exchanging, the high temperature air outlet of high-temperature heat-exchanging is communicated with the suction port of big turbine assembly, the air outlet of big turbine assembly is by the second high temperature suction port of cryogenic heat exchanger, cryogenic heat exchanger, the second low temperature air outlet of cryogenic heat exchanger is communicated with ambient air, the main shaft of big turbine assembly is connected with the input shaft of deceleration Coupler, and the output shaft of deceleration Coupler is the machine power output shaft; The power ratio of little turbine assembly and big turbine assembly is 1: 2 to 1: 4 (delivery temperature on the high-temperature exhaust air outlet of internal-combustion engine decide, in when gases are heated, they expand the ratio calculating of gas calorifics theorem).
The present invention can directly convert the exhausting heat energy that has internal-combustion engine now to mechanical energy efficiently, and the delivery temperature of diesel engine is about 650 ℃, and the heat energy of this device/mechanical energy conversion ratio can reach 20% to 50%; The delivery temperature of petrol engine is about 1000 ℃, and the heat energy of this device/mechanical energy conversion ratio can reach 30% to 65%.Its comprehensive fuel saving ratio can reach 20% to 40%.Delivery temperature is reduced significantly, reach below 200 ℃, realize the purpose of energy-saving and emission-reduction.
It also tool running steady, simple in structure, to material requirements is low, easy to use, maintenance cost is low, with low cost, advantage that power/weight ratio is big.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of little turbine assembly 1, impeller assembly 2, big turbine assembly 3, cryogenic heat exchanger 4, high-temperature heat-exchanging 5, deceleration Coupler 6;
The high-temperature exhaust air outlet 7-1 of internal-combustion engine 7 is communicated with the suction port of little turbine assembly 1, the air outlet of little turbine assembly 1 is by the high temperature suction port of high-temperature heat-exchanging 5, high-temperature heat-exchanging 5, the low temperature air outlet of high-temperature heat-exchanging 5, the first high temperature suction port of cryogenic heat exchanger 4, cryogenic heat exchanger 4, the first low temperature air outlet of cryogenic heat exchanger 4 is communicated with ambient air, the main shaft of little turbine assembly 1 is connected with the main shaft of impeller assembly 2, the suction port of impeller assembly 2 is communicated with ambient air, the air outlet of impeller assembly 2 is by the low temperature suction port of cryogenic heat exchanger 4, cryogenic heat exchanger 4, the high temperature air outlet of cryogenic heat exchanger 4, the low temperature suction port of high-temperature heat-exchanging 5, high-temperature heat-exchanging 5, the high temperature air outlet of high-temperature heat-exchanging 5 is communicated with the suction port of big turbine assembly 3, the air outlet of big turbine assembly 3 is by the second high temperature suction port of cryogenic heat exchanger 4, cryogenic heat exchanger 4, the second low temperature air outlet of cryogenic heat exchanger 4 is communicated with ambient air, the main shaft of big turbine assembly 3 is connected with the input shaft of deceleration Coupler 6, and the output shaft of deceleration Coupler 6 is the machine power output shaft; The power ratio of little turbine assembly 1 and big turbine assembly 3 is 1: 2 to 1: 4 (delivery temperature on the high-temperature exhaust air outlet 7-1 of internal-combustion engine 7 decide, in when gases are heated, they expand the ratio calculating of gas calorifics theorem).
Cryogenic heat exchanger 4, high-temperature heat-exchanging 5 can be selected the heat exchanger of counter-flow heat exchange mode for use, the optional cylindrical of its structural type, flat etc.Exotic materials such as its material selection high temperature resistant stainless steel, beryllium copper, pottery, asbestos are made.
Little turbine assembly 1, impeller assembly 2, big turbine assembly 3 can select for use the parts modification of existing turbosupercharger to assemble; Its lubricating system also can be selected the liquid-bearing of existing turbosupercharger for use.
The heating part of this device all should be in the adiabatic housing of insulation, to prevent scattering and disappearing of heat.
Working principle: after internal-combustion engine 7 startup work, its relief opening 7-1 will discharge the gas of High Temperature High Pressure, and this gas will promote little turbine assembly 1 high speed rotating, reach more than per minute 100,000 commentaries on classics, the also suitable height of temperature of the gas that discharge the air outlet of little turbine assembly 1 can reach more than 500 ℃; Little turbine assembly 1 is by main shaft impeller assembly 2 high speed rotating, impeller assembly 2 sucks extraneous normal temperature air and compression, make it produce certain pressure, the pressure ratio value is about 1: 4, these pressurized gas are through cryogenic heat exchanger 4, in the time of in the high-temperature heat-exchanging 5, the thermal power transfer of the gas that the air outlet of little turbine assembly 1 is discharged is come, and expanded by heating, its volume energy expand into original 2 times about 4 times (to be decided on heating-up temperature, calculate in gas calorifics theorem when gases are heated, they expand ratio), go to promote big turbine assembly 3 high speed rotating acting then, the gas heat energy of the air outlet of big turbine assembly 3 in system, further improves the utilization ratio of heat energy by cryogenic heat exchanger 4 backheats.
Claims (3)
1. one kind takes the device that thermal conversion becomes mechanical energy with I. C. engine exhaust, and it is made up of little turbine assembly (1), impeller assembly (2), big turbine assembly (3), cryogenic heat exchanger (4), high-temperature heat-exchanging (5), deceleration Coupler (6);
The high-temperature exhaust air outlet (7-1) of internal-combustion engine (7) is communicated with the suction port of little turbine assembly (1), it is characterized in that the high temperature suction port of the air outlet of little turbine assembly (1) by high-temperature heat-exchanging (5), high-temperature heat-exchanging (5), the low temperature air outlet of high-temperature heat-exchanging (5), the first high temperature suction port of cryogenic heat exchanger (4), cryogenic heat exchanger (4), the first low temperature air outlet of cryogenic heat exchanger (4) is communicated with ambient air, the main shaft of little turbine assembly (1) is connected with the main shaft of impeller assembly (2), the suction port of impeller assembly (2) is communicated with ambient air, the air outlet of impeller assembly (2) is by the low temperature suction port of cryogenic heat exchanger (4), cryogenic heat exchanger (4), the high temperature air outlet of cryogenic heat exchanger (4), the low temperature suction port of high-temperature heat-exchanging (5), high-temperature heat-exchanging (5), the high temperature air outlet of high-temperature heat-exchanging (5) is communicated with the suction port of big turbine assembly (3), the air outlet of big turbine assembly (3) is by the second high temperature suction port of cryogenic heat exchanger (4), cryogenic heat exchanger (4), the second low temperature air outlet of cryogenic heat exchanger (4) is communicated with ambient air, the main shaft of big turbine assembly (3) is connected with the input shaft of deceleration Coupler (6), and the output shaft of deceleration Coupler (6) is the machine power output shaft.
2. according to claim 1ly a kind of I. C. engine exhaust is taken the device that thermal conversion becomes mechanical energy, it is characterized in that the described little turbine assembly (1) and the power ratio of big turbine assembly (3) are 1: 2 to 1: 4.
3. according to claim 1ly a kind of I. C. engine exhaust is taken the device that thermal conversion becomes mechanical energy, it is characterized in that described cryogenic heat exchanger (4), high-temperature heat-exchanging (5) can select the heat exchanger of counter-flow heat exchange mode, the optional cylindrical of its structural type, flat for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910073360A CN101718234A (en) | 2009-12-07 | 2009-12-07 | Device for converting exhaust waste heat of internal combustion engine into mechanical energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910073360A CN101718234A (en) | 2009-12-07 | 2009-12-07 | Device for converting exhaust waste heat of internal combustion engine into mechanical energy |
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| Publication Number | Publication Date |
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| CN101718234A true CN101718234A (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910073360A Pending CN101718234A (en) | 2009-12-07 | 2009-12-07 | Device for converting exhaust waste heat of internal combustion engine into mechanical energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500266A (en) * | 2014-10-29 | 2015-04-08 | 张朝刚 | Centripetal gas inlet type waste heat utilization device |
| CN105422226A (en) * | 2015-12-10 | 2016-03-23 | 重庆秋航机械有限责任公司 | Circular spiral type motorcycle heating device |
-
2009
- 2009-12-07 CN CN200910073360A patent/CN101718234A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500266A (en) * | 2014-10-29 | 2015-04-08 | 张朝刚 | Centripetal gas inlet type waste heat utilization device |
| CN105422226A (en) * | 2015-12-10 | 2016-03-23 | 重庆秋航机械有限责任公司 | Circular spiral type motorcycle heating device |
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Open date: 20100602 |