CN102661194A - Engine exhaust gas energy recovery system - Google Patents
Engine exhaust gas energy recovery system Download PDFInfo
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- CN102661194A CN102661194A CN2012101333120A CN201210133312A CN102661194A CN 102661194 A CN102661194 A CN 102661194A CN 2012101333120 A CN2012101333120 A CN 2012101333120A CN 201210133312 A CN201210133312 A CN 201210133312A CN 102661194 A CN102661194 A CN 102661194A
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- steam 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 an engine exhaust gas energy recovery system in the technical field of internal combustion engines, which comprises an engine cylinder, a gas compressor, turbines, a heat exchanger, a condenser and a booster pump, wherein the gas compressor, a first turbine and a second turbine are coaxially connected through connecting shafts; a gas outlet of a gas outlet pipe of the first turbine, a gas inlet of an exhaust pipe of the first turbine, a gas inlet of a gas inlet pipe of the second turbine and a gas outlet of a gas outlet pipe of the second turbine are all connected with the heat exchanger; and the condenser and the booster pump are sequentially mounted in the gas outlet pipe of the second turbine along the fluid flow direction. In the working process of an engine, flow media flowing through the second turbine are heated by engine exhaust gas flowing out of the first turbine in the heat exchanger and are enabled to expand and do work in the second turbine, so that more available energy can be obtained by the gas compressor, the gas inlet flux of the engine is increased and the output power is improved. The engine exhaust gas energy recovery system is reasonable in design and simple in structure, and is suitable for a turbocharging system in which the gas compressor is coaxially connected with the two turbines.
Description
Technical field
What the present invention relates to is a kind of turbo charge system of field of internal combustion engine, particularly a kind of gas compressor and two coaxial engine exhaust energy-recuperation systems that link to each other of turbine.
Background technique
From the thermal equilibrium of present motor, the power that is used for power output only accounts for the 40%-50% (diesel engine) or the 25%-40% (petrol engine) of oil inflame total amount of heat, and other heat then is drained in the atmosphere environment via cooling system and waste gas.Therefore, recycling engine exhaust heat is the effective way that improves engine thermal efficiency.From the technological approaches of domestic and international exhaust energy utilization, have refrigeration, heating, thermo-electric generation, fuel catalytic reform, after connect power turbine, install mode such as power circulating device additional.Because exhaust energy has the advantages that grade is low, recovery is relatively more difficult; Make more existing technology still have more problem; As utilize the energy conversion efficiency of thermo-electric generation not high, and adopt relatively difficulty of fuel catalytic reformation technology implementation process, utilize utilizing waste heat for refrigeration and heating purposes more single; Power turbine Applicable scope is narrower, after connect power circulating device structure more complicated or the like.
Retrieval through to the existing technology document is found; Chinese patent publication number CN1363764A; Denomination of invention: boosting system for steaming turbine of IC engine; This application discloses a kind ofly utilizes engine exhaust heat energy heating liquid water, and the overheated steam after will heating is injected into the turbine promoting the circulation of qi vapour that advances and mixes and increase the turbine expansion merit, thereby reaches the boosting system for steaming turbine that improves the engine section load performance; But owing to need in this boosting system for steaming turbine running to consume a certain amount of soft water after treatment, so its using scope is restricted.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, a kind of engine exhaust energy-recuperation system is provided, can effective recycling engine exhaust energy, improve the complete machine fuel consumption level.
The present invention realizes through following technological scheme; The present invention includes: compressor air inlet machine pipe, gas compressor, coupling shaft, gas compressor steam outlet pipe, engine valve actuating mechanism, engine charge valve, engine exhaust valve, cylinder, motor first gas inlet casing, first turbine, the first turbine steam outlet pipe, heat exchanger, outlet pipe, second gas inlet casing, second turbine, the second turbine steam outlet pipe, condenser, suction booster, exhaust tube and bleed valve; The air inlet/outlet of gas compressor is connected with the air outlet of compressor air inlet machine pipe, the suction port of gas compressor steam outlet pipe respectively; Engine valve actuating mechanism is installed on the cylinder; The suction port of the air outlet of gas compressor steam outlet pipe, first gas inlet casing all is connected with cylinder; The air inlet/outlet of first turbine is connected with the air outlet of first gas inlet casing, the suction port of the first turbine steam outlet pipe respectively; Gas compressor, first turbine and second turbine link to each other through coupling shaft is coaxial; The suction port of the air outlet of the first turbine steam outlet pipe, the suction port of outlet pipe, second gas inlet casing, the air outlet of the second turbine steam outlet pipe all are connected with heat exchanger; The air inlet/outlet of second turbine is connected with the air outlet of second gas inlet casing, the suction port of the second turbine steam outlet pipe respectively; Longshore current body flow direction is installed condenser and suction booster successively in the second turbine steam outlet pipe, and the suction port of exhaust tube is connected with the first turbine steam outlet pipe, and bleed valve is installed on the exhaust tube.
Engine valve actuating mechanism is the distribution device of VVT and lift.
In working procedure of the present invention; The fluid of gas compressor of flowing through is an air; The fluid of first gas inlet casing, first turbine, the first turbine steam outlet pipe and outlet pipe of flowing through is an engine exhaust, second gas inlet casing of flowing through, second turbine and the second turbine steam outlet pipe be water or flowing mediums such as ammonia or ethanol or butane.The blast air of motor is when heat exchanger; Heat exchange function through heat exchanger heats the flowing medium that flows out the second turbine steam outlet pipe; Reach superheat state, then flowing medium flows to the ingress of second turbine through second gas inlet casing, and the acting of in second turbine, expanding; Through condenser and suction booster are installed in the second turbine steam outlet pipe, can further reduce the pressure of the second turbine air outlet, thereby make the output of second turbine do more merit; Heat exchange effect through heat exchanger can make full use of exhaust energy, thereby makes gas compressor obtain more useful work, and engine intake airflow increases, and oil consumption reduces; Through suction booster being regulated the output work of controlling second turbine, thereby make turbosupercharger and motor mate operation preferably, reach the remarkable purpose of improving the motor low-load performance, improving complete machine oil consumption level; Regulate through suction valve in the engine valve actuating mechanism cuts out correct time, can prevent that maximum explosive pressure exceeds tolerance zone in the cylinder; Through bleed valve is regulated, can prevent that superheat state from appearring in heat exchanger.
Compared with prior art, the present invention has following beneficial effect: the present invention can make engine intake airflow increase, thereby increases the output power of motor; The present invention can control the output work of second turbine through suction booster is regulated, thereby makes turbosupercharger and motor mate operation preferably, reaches the remarkable purpose of improving the motor low-load performance, improving complete machine oil consumption level; The present invention has realized the interior recovery of the cylinder of exhaust energy, and directly exports acting through bent axle, than other exhaust energy way of recycling, need not other energy transfer or output unit, has practiced thrift cost.
Description of drawings
Fig. 1 is the structural representation of engine exhaust energy-recuperation system of the present invention;
Wherein: 1, compressor air inlet machine pipe, 2, gas compressor, 3, coupling shaft, 4, the gas compressor steam outlet pipe, 5, engine valve actuating mechanism; 6, engine charge valve, 7, the engine exhaust valve, 8, cylinder, 9, first gas inlet casing, 10, first turbine; 11, the first turbine steam outlet pipe, 12, heat exchanger, 13, outlet pipe, 14, second gas inlet casing, 15, second turbine; 16, the second turbine steam outlet pipe, 17, condenser, 18, suction booster, 19, exhaust tube, 20, bleed valve.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is a prerequisite with technological scheme of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1; The present invention includes: compressor air inlet machine pipe 1, gas compressor 2, coupling shaft 3, gas compressor steam outlet pipe 4, engine valve actuating mechanism 5, engine charge valve 6, engine exhaust valve 7, cylinder 8, first gas inlet casing 9, first turbine 10, the first turbine steam outlet pipe 11, heat exchanger 12, outlet pipe 13, second gas inlet casing 14, second turbine 15, the second turbine steam outlet pipe 16, condenser 17, suction booster 18, exhaust tube 19 and bleed valve 20; The air inlet/outlet of gas compressor 2 is connected with the air outlet of compressor air inlet machine pipe 1, the suction port of gas compressor steam outlet pipe 4 respectively; Engine valve actuating mechanism 5 is installed on the cylinder 8; The suction port of the air outlet of gas compressor steam outlet pipe 4, first gas inlet casing 9 all is connected with cylinder 8; The air inlet/outlet of first turbine 10 is connected with the air outlet of first gas inlet casing 9, the suction port of the first turbine steam outlet pipe 11 respectively; Gas compressor 2, first turbine 10 and second turbine 15 are through 3 coaxial linking to each other of coupling shaft; The air outlet of the suction port of the suction port of the air outlet of the first turbine steam outlet pipe 11, outlet pipe 13, second gas inlet casing 14, the second turbine steam outlet pipe 16 all is connected with heat exchanger 12; The air inlet/outlet of second turbine 15 is connected with the air outlet of second gas inlet casing 14, the suction port of the second turbine steam outlet pipe 16 respectively; Longshore current body flow direction is installed condenser 17 and suction booster 18 successively in the second turbine steam outlet pipe 16; The suction port of exhaust tube 19 is connected with the first turbine steam outlet pipe 11, and bleed valve 20 is installed on the exhaust tube 19, and engine valve actuating mechanism 5 is the distribution device of VVT and lift.
In working procedure of the present invention; The fluid of gas compressor 2 of flowing through is an air; The fluid of first gas inlet casing 9, first turbine 10, the first turbine steam outlet pipe 11 and outlet pipe 13 of flowing through is an engine exhaust, flow through second gas inlet casing 14, second turbine 15 and the second turbine steam outlet pipe 16 be water or flowing mediums such as ammonia or ethanol or butane.The blast air of motor is when heat exchanger 12; Heat exchange function through heat exchanger 12 heats the flowing medium that flows out the second turbine steam outlet pipe 16; Then flowing medium flows to the ingress of second turbine 15 through second gas inlet casing 14, and the acting of in second turbine 15, expanding; Through condenser 17 and suction booster 18 are installed in the second turbine steam outlet pipe 16, can further reduce the pressure of second turbine, 15 air outlets, thereby make second turbine 15 can do more merit; Heat exchange effect through heat exchanger 12 can make full use of exhaust energy, thereby makes gas compressor 2 obtain more useful work, and engine intake airflow increases, and oil consumption reduces; Through suction booster 18 is regulated, control the output work of second turbine, thereby make turbosupercharger and motor mate operation preferably, reach the remarkable purpose of improving the motor low-load performance, improving complete machine oil consumption level; Regulate through suction valve in the engine valve actuating mechanism 5 cuts out correct time, can prevent that maximum explosive pressure exceeds tolerance zone in the cylinder; Through bleed valve 20 is regulated, can prevent that superheat state from appearring in heat exchanger 12.
Claims (2)
1. engine exhaust energy-recuperation system; Comprise: compressor air inlet machine pipe (1), gas compressor (2), coupling shaft (3), gas compressor steam outlet pipe (4), engine valve actuating mechanism (5), engine charge valve (6), engine exhaust valve (7), cylinder (8), first gas inlet casing (9), first turbine (10) and the first turbine steam outlet pipe (11); The air inlet/outlet of gas compressor (2) is connected with the air outlet of compressor air inlet machine pipe (1), the suction port of gas compressor steam outlet pipe (4) respectively; Engine valve actuating mechanism (5) is installed on the cylinder (8); The suction port of the air outlet of gas compressor steam outlet pipe (4), first gas inlet casing (9) all is connected with cylinder (8); The air inlet/outlet of first turbine (10) is connected with the air outlet of first gas inlet casing (9), the suction port of the first turbine steam outlet pipe (11) respectively; It is characterized in that also comprising heat exchanger (12), outlet pipe (13), second gas inlet casing (14), second turbine (15), the second turbine steam outlet pipe (16), condenser (17), suction booster (18), exhaust tube (19) and bleed valve (20); Gas compressor (2), first turbine (10) and second turbine (15) are through coaxial linking to each other of coupling shaft (3); The air outlet of the suction port of the suction port of the air outlet of the first turbine steam outlet pipe (11), outlet pipe (13), second gas inlet casing (14), the second turbine steam outlet pipe (16) all is connected with heat exchanger (12); The air inlet/outlet of second turbine (15) is connected with the air outlet of second gas inlet casing (14), the suction port of the second turbine steam outlet pipe (16) respectively; Longshore current body flow direction is installed condenser (17) and suction booster (18) successively in the second turbine steam outlet pipe (16); The suction port of exhaust tube (19) is connected with the first turbine steam outlet pipe (11), and bleed valve (20) is installed on the exhaust tube (19).
2. engine exhaust energy-recuperation system according to claim 1 is characterized in that the distribution device of engine valve actuating mechanism (5) for VVT and lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101333120A CN102661194A (en) | 2012-04-28 | 2012-04-28 | Engine exhaust gas energy recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101333120A CN102661194A (en) | 2012-04-28 | 2012-04-28 | Engine exhaust gas energy recovery system |
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| CN102661194A true CN102661194A (en) | 2012-09-12 |
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| CN2012101333120A Pending CN102661194A (en) | 2012-04-28 | 2012-04-28 | Engine exhaust gas energy recovery system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612816A (en) * | 2015-02-06 | 2015-05-13 | 安徽工程大学 | Energy recovery system of engine |
| CN104963783A (en) * | 2014-07-21 | 2015-10-07 | 摩尔动力(北京)技术股份有限公司 | Ternary coaxial engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1653253A (en) * | 2002-03-14 | 2005-08-10 | 阿尔斯通技术有限公司 | Power generating system |
| DE102005025615A1 (en) * | 2005-06-03 | 2006-12-07 | Bayerische Motoren Werke Ag | Vehicle with combustion engine with active intake air cooling e.g. for vehicle with combustion engine, has combustion engine and intake mechanism with engine supplied with air and or fuel air mixture |
| CN102165159A (en) * | 2008-09-30 | 2011-08-24 | 美国国家环境保护局 | Improved efficiency turbocharged engine system with bottoming cycle, and method of operation |
| CN102182583A (en) * | 2011-04-13 | 2011-09-14 | 北京理工大学 | Combined-type residual heat recovery system suitable for internal combustion engine |
-
2012
- 2012-04-28 CN CN2012101333120A patent/CN102661194A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1653253A (en) * | 2002-03-14 | 2005-08-10 | 阿尔斯通技术有限公司 | Power generating system |
| DE102005025615A1 (en) * | 2005-06-03 | 2006-12-07 | Bayerische Motoren Werke Ag | Vehicle with combustion engine with active intake air cooling e.g. for vehicle with combustion engine, has combustion engine and intake mechanism with engine supplied with air and or fuel air mixture |
| CN102165159A (en) * | 2008-09-30 | 2011-08-24 | 美国国家环境保护局 | Improved efficiency turbocharged engine system with bottoming cycle, and method of operation |
| CN102182583A (en) * | 2011-04-13 | 2011-09-14 | 北京理工大学 | Combined-type residual heat recovery system suitable for internal combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963783A (en) * | 2014-07-21 | 2015-10-07 | 摩尔动力(北京)技术股份有限公司 | Ternary coaxial engine |
| CN104963783B (en) * | 2014-07-21 | 2017-07-18 | 摩尔动力(北京)技术股份有限公司 | Ternary coaxial engine |
| CN104612816A (en) * | 2015-02-06 | 2015-05-13 | 安徽工程大学 | Energy recovery system of engine |
| CN104612816B (en) * | 2015-02-06 | 2017-01-11 | 安徽工程大学 | Energy recovery system of engine |
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Application publication date: 20120912 |