CN103603729A - Variable-displacement engine - Google Patents
Variable-displacement engine Download PDFInfo
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- CN103603729A CN103603729A CN201310655735.3A CN201310655735A CN103603729A CN 103603729 A CN103603729 A CN 103603729A CN 201310655735 A CN201310655735 A CN 201310655735A CN 103603729 A CN103603729 A CN 103603729A
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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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Abstract
The invention discloses a variable-displacement engine and belongs to the technical field of engines. The variable-displacement engine is characterized in that a cylinder I, a cylinder II, a cylinder III and a cylinder IV on an internal direct-injection engine are respectively and correspondingly provided with one gas inlet pipe, and are respectively connected with a partitional gas inlet mechanism of a throttle valve by gas inlet pipe openings of the cylinder I, the cylinder II, the cylinder III and the cylinder IV; an outlet of the end part of an exhausting main pipe is connected with a three-way catalytic converter; an outlet of the side surface of the exhausting main pipe is connected with an inlet of a waste gas return pipe I; an outlet of the waste gas return pipe I is connected with a waste gas return pipe II by a throttle valve connector III with a throttle valve III; the waste gas return pipe II is connected with a gas inlet pipe of the cylinder IV of the partitional gas inlet mechanism of the throttle valve; an electric control unit is respectively connected with the three throttle valves, a three-cylinder injector and a four-cylinder injector fixedly connected on a cylinder cover of the internal direct-injection engine. The variable-displacement engine disclosed by the invention has the advantages that after the displacement is changed, the excess air factor is 1 when the engine is in working can be guaranteed, so that the three-way catalytic converter works normally, the emission can be improved, the cold-heat alternation in the cylinders can be avoided, the service life of the engine can be prolonged, the cost is low and the oil-saving effect is good.
Description
Technical field
The invention belongs to technical field of engines, be specifically related to a kind of variable-displacement engine that can improve fuel-saving efficiency.
Background technique
Variable displacement technology refers to stop sub-cylinder work under the operating mode of little load, and to the many oil spouts of other cylinder, identical power while making it produce with whole cylinder operation, and still total fuel injection quantity but can reduce, and can save part fuel oil like this.Part throttle characteristics from petrol engine, the fuel consumption rate of engine operation when little load can be very high, but the fuel consumption rate when middle high load can reduce, this is that throttle opening is less due to when the low-load, throttling action is larger, hour, the ventilation of cylinder is bad for throttle opening, and residual waste gas increases, burn bad, cause fuel consumption rate to increase.Along with energy crisis is more and more severeer, traffic more next with block up, vehicle grows with each passing day, it is increasing that our automobile is operated in the probability of sub load or moderate duty operating mode, this just makes to become the space that discharge capacity technology has had performance.Motor is when road driving, load is not constant, sometimes need the work of stop sub-cylinder, sometimes need cylinder all to work, if when stop sub-cylinder is worked, it is the simple oil spout that stops, and do not take other measures, this will make out-of-work cylinder still enter air, air can be taken away the heat producing when early stage, cylinder was all worked, and the temperature in cylinder is reduced, and this not only makes the extra thermal loss of generation of motor, and the process that colds and heat succeed each other, can cause decline the working life of motor.Moreover, also can cause after-treatment device transfer capability to decline, this is mainly because present petrol engine after-treatment device mostly is triple effect catalytic converter, this device is that conversion efficiency is best when excess air coefficient is 1, if idle cylinder continues into air, can cause the gas air of discharging to increase, make excess air coefficient much larger than 1, after-treatment device catalytic conversion decrease in efficiency, causes deterioration of emission.
On some high-grade automobile, be provided with and stop valve system, a kind of exactly mechanism that can stop valve motion when stopping oil spout, keeps inlet and exhaust valve in closed condition, this mechanism is not only complicated, the precision of claimed structure is very high, controls its motion aspect also cumbersome, requires accurate, rapid.On the other hand, most of family sedan-chair mostly is four cylinder engine now, and the valve system that stops that is really applied to small displacement engine does not almost have, and Ge great motor corporation does not also release such motor.Even if this mechanism is housed, this engine price is also relatively high, and the expense of saving by fuel-economizing may just in time have been offset the price of this mechanism.Therefore provide to Consumer, cost is low to necessitate with the large product of income.
Summary of the invention
The object of the present invention is to provide a kind of variable-displacement engine that can improve fuel-saving efficiency.
The present invention is by being provided with motor one cylinder 1, motor two cylinder 2, motor three cylinders 3, the in-cylinder direct fuel-injection engine 9 of motor four cylinders 4, triple effect catalytic converter 5, exhaust manifold 6, three cylinder injectors 7, four cylinder injectors 8, exhaust gas recirculation pipe I 11, be equipped with the closure link III 25 of closure III 12, ECU (Electrical Control Unit) 18 and closure partition type admission gear form, wherein on in-cylinder direct fuel-injection engine 9, be followed successively by from left to right motor one cylinder 1, motor two cylinder 2, motor three cylinders 3 and motor four cylinders 4, each cylinder is to there being one section of suction tude, and respectively through a cylinder air inlet mouth of pipe 19, the two cylinder air inlet mouth of pipe 20, the three cylinder air inlet mouths of pipe 22 are connected with closure partition type admission gear with the four cylinder air inlet mouths of pipe 24, exhaust manifold 6 end outlets are connected with triple effect catalytic converter 5, exhaust manifold 6 side exits are connected with exhaust gas recirculation pipe I 11 entrances, 11 outlets of exhaust gas recirculation pipe I are connected with exhaust gas recirculation pipe II 13 through being equipped with the closure link III 25 of closure III 12, and exhaust gas recirculation pipe II 13 is connected with four cylinder suction tude 10 of closure partition type admission gear, ECU (Electrical Control Unit) 18 is comprised of signal receiving module 28, data processing module 29, control output module 30, ECU (Electrical Control Unit) 18 is connected with closure I 16, closure II 14, closure III 12 and three cylinder injectors 7, four cylinder injectors 8 that are fixed in in-cylinder direct fuel-injection engine 9 cylinder head respectively, and ECU (Electrical Control Unit) 18 also receives respectively tach signal 31 and torque signal 32.
Described closure partition type admission gear is comprised of a two cylinder suction tude 17, the closure link I 21 that is equipped with closure I 16, three cylinder suction tude 15, the closure link II 23 that is equipped with closure II 14, exhaust gas recirculation pipe II 13 and four cylinder suction tude 10, and wherein a two cylinder suction tude 17, the closure link I 21 that is equipped with closure I 16, three cylinder suction tude 15, the closure link II 23 that is equipped with closure II 14 and four cylinder suction tude 10 are connected in series; One two cylinder suction tude 17 is provided with a cylinder air inlet mouth of pipe 19, the two cylinder air inlet mouth of pipe 20 and intake manifold's entrance 27; Three cylinder suction tude 15 are provided with the three cylinder air inlet mouths of pipe 22; Four cylinder suction tude 10 are provided with the exhaust gas recirculation tube inlet 26 of the four cylinder air inlet mouths of pipe 24 and exhaust gas recirculation pipe II 13.
Compared with prior art the invention has the beneficial effects as follows:
1. the present invention is after becoming discharge capacity, and in the time of can guaranteeing engine operation, excess air coefficient is 1, makes triple effect catalytic converter normal operation.
2. the present invention, after becoming discharge capacity, compares under identical operating mode with former machine, can improve discharge.
3. the present invention can maintain cylinder temperature, avoids cylinder interior to cold and heat succeed each other, and affects the working life of motor.
4. cost of the present invention is low, oil-saving effect with do not change air inlet and stop merely oil spout and compare, can greatly improve fuel consume.
Accompanying drawing explanation
Fig. 1 is the structural representation of variable-displacement engine
Fig. 2 is closure partition type admission gear and exhaust gas recirculation pipe I, be equipped with the schematic diagram of the closure link III of closure III, exhaust gas recirculation pipe II annexation
Fig. 3 is A--A cross sectional view in Fig. 2
Fig. 4 is the plan view of closure partition type admission gear
Fig. 5 is the rear view of closure partition type admission gear
Fig. 6 is ECU (Electrical Control Unit) and component annexation schematic diagram
Of which:. .. .. 1 engine of a two-cylinder engine cylinder 2 3 4-cylinder engine four-cylinder engine 5 three-way catalytic converter exhaust manifold 6 7 8 triplex cylinder injector injector 9. cylinder direct injection engine 10. cylinder intake manifold 11. exhaust gas recirculation pipe Ⅰ 12. throttle Ⅲ 13. EGR tube Ⅱ 14. throttle Ⅱ 15. triplex intake pipe 16. throttle Ⅰ 17. twelve-cylinder intake manifold 18. electronically controlled unit 19 a cylinder intake duct outlet 20. two cylinder ports 21 into the trachea. throttle connection Ⅰ 22. triplex port 23 into the trachea. throttle connection Ⅱ 24. cylinder port 25 into the trachea. throttle connection Ⅲ 26. gas reflux tube inlet 27. intake manifold inlet 28. signal receiving module 29. data processing module 30. controls the output module 31. speed signal 32. torque signal
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail:
Consult Fig. 1, in figure, circular portion is from left to right followed successively by motor one cylinder 1, motor two cylinder 2, motor three cylinders 3, motor four cylinders 4, an electric-controlled fuel injector is housed in each cylinder head, only list three cylinder injectors 7 and four cylinder injectors 8 that the present invention need to use below, one two cylinder suction tude 17 is connected with three cylinder suction tude 15 through closure link I 21, and three cylinder suction tude 15 are connected with four cylinder suction tude 10 through closure link II 23.Exhaust gas recirculation pipe I 11 communicates exhaust manifold 6 and four cylinder suction tude 10, realize the function of exhaust gas recirculation, one two cylinder suction tude 17 is affixed with the cylinder body of motor one cylinder 1 and motor two cylinder 2 through a cylinder air inlet mouth of pipe 19 and the two cylinder air inlet mouth of pipe 20, three cylinder suction tude 15 are affixed with the cylinder body of motor three cylinders 3 through the three cylinder air inlet mouths of pipe 22, and four cylinder suction tude 10 are affixed with the cylinder body of motor four cylinders 4 through the four cylinder air inlet mouths of pipe 24.
Exhaust manifold 6 end outlets are connected with triple effect catalytic converter 5, exhaust manifold 6 side exits are connected with exhaust gas recirculation pipe I 11 entrances, exhaust gas recirculation pipe I 11 is connected with exhaust gas recirculation pipe II 13 through closure link III 25, and exhaust gas recirculation pipe II 13 and four cylinder suction tude 10 are as a whole.
In-cylinder direct fuel-injection engine 9 in the present invention is the common direct spray petrol engine in cylinder extensively adopting at present, and does not have the mechanism that stops valve motion.Closure link I 21, closure link II 23 and closure link III 25 are resistant to elevated temperatures structure, and closure III 12, closure II 14 and closure I 16 are resistant to elevated temperatures electronically controlled throttle valve or simple mechanism that some are feasible.Triple effect catalytic converter 5 is arranged on the 6 end outlets of exhaust gas recirculation pipe exhaust manifold, is the tail-gas after treatment apparatus of specialized application on petrol engine, can apply commercially available most of product.Chip or ECU that ECU (Electrical Control Unit) 18 is the processor that stores the work of controlling three cylinder injectors 7, four cylinder injectors 8 and whether open and close with closure III 12, closure II 14 and closure I 16, these programs data that experiment produces based on engine calibration are write.
ECU (Electrical Control Unit) and component annexation schematic diagram as shown in Figure 6, relate to the annexation of ECU (Electrical Control Unit) 18 and three cylinder injectors 7, four cylinder injectors 8, closure III 12, closure II 14, closure I 16.ECU (Electrical Control Unit) 18 is comprised of signal receiving module 28, data processing module 29, control output module 30.Signal receiving module 28 receives tach signal and torque signal, data processing module 29 front and back connect respectively signal receiving module 28 and control output module 30, control output module 30 and be connected with closure I 16, closure II 14, closure III 12 and three cylinder injectors 7, four cylinder injectors 8 that are fixed in in-cylinder direct fuel-injection engine 9 cylinder head respectively, ECU (Electrical Control Unit) 18 also receives respectively tach signal 31 and torque signal 32.
Wherein, described signal receiving module 28 comprises A/D change-over circuit, by receiving tach signal 31 and the torque signal 32 of coming, analogue signal is converted to digital signal; Described data processing module 29, processes the digital signal of accepting, and then judges whether the work of stop sub-cylinder, and definite which cylinder operation that stops, meanwhile, according to the situation of cylinder operation, the open and-shut mode of judgement closure III 12, closure II 14, closure I 16; The work that described control output module 30 is controlled three cylinder injectors 7, four cylinder injectors 8 according to the result of data processing module 29 whether with the open and-shut mode of closure III 12, closure II 14, closure I 16.
Specifically comprise following three kinds of control modes:
1) while loading greatly, motor one cylinder 1, motor two cylinder 2, motor three cylinders 3 and motor four cylinder 4 work, need to keep closure III 12 to close, and closure I 16 and closure II 14 are in opening state, can make like this each cylinder obtain fresh air, maintain normal operation.
2) during moderate duty, motor four cylinders 4 are not worked, motor one cylinder 1, motor two cylinder 2 and motor three cylinder 3 work, need to keep closure II 14 to close, closure I 16 and closure III 12 are in opening state, can make like this waste gas enter idle motor four cylinders 4, fresh air enters motor one cylinder 1, motor two cylinder 2 and motor three cylinders 3.
3) during little load, motor three cylinders 3, motor four cylinders 4 are not worked, motor one cylinder 1,2 work of motor two cylinder, need to keep closure I 16 to close, closure II 14, closure III 12 are in opening state, can make like this waste gas enter idle motor three cylinders 3 and motor four cylinders 4, fresh air enters motor one cylinder 1 and motor two cylinder 2.
Claims (2)
1. a variable-displacement engine, it is characterized in that by being provided with motor one cylinder (1), motor two cylinder (2), motor three cylinders (3), the in-cylinder direct fuel-injection engine (9) of motor four cylinders (4), triple effect catalytic converter (5), exhaust manifold (6), three cylinder injectors (7), four cylinder injectors (8), exhaust gas recirculation pipe I (11), be equipped with the closure link III (25) of closure III (12), ECU (Electrical Control Unit) (18) and closure partition type admission gear form, wherein on in-cylinder direct fuel-injection engine (9), be followed successively by from left to right motor one cylinder (1), motor two cylinder (2), motor three cylinders (3) and motor four cylinders (4), each cylinder is to there being one section of suction tude, and respectively through a cylinder air inlet mouth of pipe (19), the two cylinder air inlet mouth of pipe (20), the three cylinder air inlet mouths of pipe (22) are connected with closure partition type admission gear with the four cylinder air inlet mouths of pipe (24), the outlet of exhaust manifold (6) end is connected with triple effect catalytic converter (5), exhaust manifold (6) side exit is connected with exhaust gas recirculation pipe I (11) entrance, exhaust gas recirculation pipe I (11) outlet is connected with exhaust gas recirculation pipe II (13) through being equipped with the closure link III (25) of closure III (12), and exhaust gas recirculation pipe II (13) is connected with four cylinder suction tude (10) of closure partition type admission gear, ECU (Electrical Control Unit) (18) is comprised of signal receiving module (28), data processing module (29), control output module (30), ECU (Electrical Control Unit) (18) is connected with closure I (16), closure II (14), closure III (12) and three cylinder injectors (7), four cylinder injectors (8) that are fixed in in-cylinder direct fuel-injection engine (9) cylinder head respectively, and ECU (Electrical Control Unit) (18) also receives respectively tach signal (31) and torque signal (32).
2. by variable-displacement engine claimed in claim 1, it is characterized in that described closure partition type admission gear is by a two cylinder suction tude (17), be equipped with the closure link I (21) of closure I (16), three cylinder suction tude (15), be equipped with the closure link II (23) of closure II (14), exhaust gas recirculation pipe II (13) and four cylinder suction tude (10) form, a two cylinder suction tude (17) wherein, be equipped with the closure link I (21) of closure I (16), three cylinder suction tude (15), the closure link II (23) and the four cylinder suction tude (10) that are equipped with closure II (14) are connected in series, one two cylinder suction tude (17) is provided with a cylinder air inlet mouth of pipe (19), the two cylinder air inlet mouth of pipe (20) and intake manifold's entrance (27), three cylinder suction tude (15) are provided with the three cylinder air inlet mouths of pipe (22), four cylinder suction tude (10) are provided with the exhaust gas recirculation tube inlet (26) of the four cylinder air inlet mouths of pipe (24) and exhaust gas recirculation pipe II (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655735.3A CN103603729A (en) | 2013-12-08 | 2013-12-08 | Variable-displacement engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655735.3A CN103603729A (en) | 2013-12-08 | 2013-12-08 | Variable-displacement engine |
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| Publication Number | Publication Date |
|---|---|
| CN103603729A true CN103603729A (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310655735.3A Pending CN103603729A (en) | 2013-12-08 | 2013-12-08 | Variable-displacement engine |
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| CN (1) | CN103603729A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553637A (en) * | 2015-09-17 | 2017-04-05 | 现代自动车株式会社 | For the system and method for the non-homogeneous displacement engine control of motor auxiliary |
| WO2020073144A1 (en) * | 2018-10-09 | 2020-04-16 | 彭永 | Device and method for controlling output power of cylinder in batches in internal combustion engine, and energy conservation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928038A (en) * | 1982-08-06 | 1984-02-14 | Yamaha Motor Co Ltd | Fuel injection type multicylinder engine |
| CN2044646U (en) * | 1988-10-11 | 1989-09-20 | 杜云波 | Device for auto-controlling changing cylinder of engine and saving oil |
| WO2003064837A1 (en) * | 2002-01-31 | 2003-08-07 | Mazda Motor Corporation | Control device for spark-ignition engine |
| GB2418228A (en) * | 2004-09-21 | 2006-03-22 | Lotus Car | Multiple combustion chamber internal combustion engine with a combustion chamber deactivation system |
| CN101676538A (en) * | 2008-09-18 | 2010-03-24 | 吕文杰 | Engine with multiple-level gas displacement |
| CN203614239U (en) * | 2013-12-08 | 2014-05-28 | 吉林大学 | Displacement variable engine |
-
2013
- 2013-12-08 CN CN201310655735.3A patent/CN103603729A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928038A (en) * | 1982-08-06 | 1984-02-14 | Yamaha Motor Co Ltd | Fuel injection type multicylinder engine |
| CN2044646U (en) * | 1988-10-11 | 1989-09-20 | 杜云波 | Device for auto-controlling changing cylinder of engine and saving oil |
| WO2003064837A1 (en) * | 2002-01-31 | 2003-08-07 | Mazda Motor Corporation | Control device for spark-ignition engine |
| GB2418228A (en) * | 2004-09-21 | 2006-03-22 | Lotus Car | Multiple combustion chamber internal combustion engine with a combustion chamber deactivation system |
| CN101676538A (en) * | 2008-09-18 | 2010-03-24 | 吕文杰 | Engine with multiple-level gas displacement |
| CN203614239U (en) * | 2013-12-08 | 2014-05-28 | 吉林大学 | Displacement variable engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553637A (en) * | 2015-09-17 | 2017-04-05 | 现代自动车株式会社 | For the system and method for the non-homogeneous displacement engine control of motor auxiliary |
| CN106553637B (en) * | 2015-09-17 | 2022-04-01 | 现代自动车株式会社 | System and method for electric motor assisted non-uniform displacement engine control |
| WO2020073144A1 (en) * | 2018-10-09 | 2020-04-16 | 彭永 | Device and method for controlling output power of cylinder in batches in internal combustion engine, and energy conservation method |
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Application publication date: 20140226 |