CN204163868U - Variable-speed-ratio compound turbine system - Google Patents
Variable-speed-ratio compound turbine system Download PDFInfo
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- CN204163868U CN204163868U CN201420571277.5U CN201420571277U CN204163868U CN 204163868 U CN204163868 U CN 204163868U CN 201420571277 U CN201420571277 U CN 201420571277U CN 204163868 U CN204163868 U CN 204163868U
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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
A variable speed ratio compound turbine system comprises a supercharger, a power turbine, a speed change mechanism and a transmission mechanism, wherein an air inlet end and an air outlet end of the supercharger are respectively communicated with an air outlet end and the power turbine of an engine, the speed change mechanism comprises a large speed ratio gear set meshed with a first gear and a second gear and a small speed ratio gear set meshed with a third gear and a fourth gear, the first gear and the third gear are coaxially fixed on an output shaft of the power turbine, the second gear and the fourth gear are coaxially arranged on a transmission input shaft of the transmission mechanism, a combination sleeve capable of axially moving along the transmission input shaft is arranged between the second gear and the fourth gear, external teeth of the combination sleeve are matched with internal teeth of the second gear and the fourth gear, the combination sleeve is connected with a speed change ratio control device through a combination sleeve shifting fork mechanism, and a transmission output shaft of the transmission mechanism is connected with a crankshaft of the engine. The design not only has simple structure and small volume, but also improves the performance of the engine.
Description
Technical field
The utility model belongs to engine exhaust technical field of energy recovery, is specifically related to a kind of variable gear ratio composite turbine system, the performance being specifically applicable to simplified structure, reducing volume, improve motor.
Background technique
Along with continuing to increase of automobile pollution, the energy consumption of motor car engine, greenhouse gases CO
2become increasingly conspicuous with pollutant emission problem.Energy-conservation, the reduction of discharging of automobile have become current automobile industry development key issue urgently to be resolved hurrily.Improving vehicular engine capacity usage ratio is solve one of vehicle energy saving, the important measures reducing discharging problem.Motor in the course of the work, 30% – 45% is only had for the Effective power of Power output in oil inflame total energy, and nearly the energy of 1/3 be lost by exhaust energy, therefore recycle exhaust energy and can improve engine power utilization ratio, thus energy-conservation, the reduction of discharging of real automobile.
In recent years, technology is utilized to carry out a lot of research and application work to engine exhaust energy regenerating both at home and abroad.Composite turbine technology absorbs by an efficient power turbine rotation function that heat in waste gas is converted to turbine, is then input in engine crankshaft by energy by transmission system, thus improve engine power output.Composite turbine engine can realize the air fuel ratio promoting low speed, low-load by the turbosupercharger that coupling is less, improve burning, reduce fuel consumption rate, improve transient response; During high speed due to the exhaust energy that can reclaim comparatively large therefore also can hoisting power, reduce fuel consumption rate; Simultaneously composite turbine engine due to exhaust back pressure increase can the higher EGR rate of reality, thus reduce the NOx discharge of motor.
Chinese patent: application publication number is CN103225552A, Shen Qing Publication day is that the patent of invention on July 31st, 2013 discloses a kind of power turbine series parallel type integrated apparatus and control system, comprise pressurized machine, power turbine, power turbine controller and the variable mechanical transmission system be arranged between power turbine and bent axle, variable mechanical transmission system is by clutch, first order fixed speed ratio speed changer, second level variable ratio transmission and third level power coupling gear composition, and clutch, power turbine and second level variable ratio transmission all with power turbine controller Electricity Federation, power turbine is connected with turbosupercharger, first order fixed speed ratio speed changer is arranged on the output terminal of clutch, for carrying out large speed ratio reduction of speed to power turbine, second level variable ratio transmission is arranged on the low speed end of first order fixed speed ratio speed changer, for regulating the speed ratio between power turbine and internal-combustion engine, third level power coupling gear is arranged on the crankshaft end of internal-combustion engine, acting is exported on the bent axle moment of torsion of power turbine being coupled to internal-combustion engine, power turbine controller is real-time according to the operating conditions of internal-combustion engine, control the running state of power turbine.Although this invention can according to the speed ratio of the operating conditions real-time monitoring second level variable ratio transmission of internal-combustion engine, the operational efficiency of optimizing power turbine within the scope of full working scope, but realize control stepless speed change, so its actuator will inevitably be very complicated, the volume of total also can be comparatively large, is difficult to really to realize its application on the engine.
Summary of the invention
The purpose of this utility model overcomes complex structure, the problem that volume is larger that existing structure exists, and provides that a kind of structure is simple, the variable gear ratio composite turbine system of small volume.
For realizing above object, the technical solution of the utility model is as follows:
A kind of variable gear ratio composite turbine system, comprise pressurized machine, power turbine, gear, driving mechanism, described pressurized machine comprises the coaxial gas compressor, the charging turbine that connect, the exhaust end of gas compressor communicates with the intake manifold of motor, inlet end, the exhaust end of charging turbine communicate with the gas exhaust manifold of motor, the inlet end of power turbine respectively, and the output shaft of power turbine is connected with the bent axle of motor by gear, driving mechanism successively;
Described gear comprises large speed ratio gear group, little speed ratio gear group, speed-ratio control apparatus, large speed ratio gear group comprises an intermeshing gear, No. two gears, little speed ratio gear group comprises intermeshing No. three gears, No. four gears, a described gear, No. three gears are coaxially fixed on output shaft, and the transmission input shaft that No. two gears, No. four gears are coaxially arranged on driving mechanism can dally relative to transmission input shaft;
Nested domain on described transmission input shaft between No. two gears, No. four gears is provided with the combined cover that can move axially along transmission input shaft, the external tooth of this combined cover matches with the internal tooth of No. two gears, No. four gears, and combined cover is connected with speed-ratio control apparatus by combined cover shifting fork mechanism.
Described driving mechanism comprises flexible gearing, driving gear set, this flexible gearing is provided with transmission input shaft, transmission output shaft, and described transmission output shaft is connected with bent axle by driving gear set.
Described gear, driving mechanism are all arranged on the inside of housing.
Compared with prior art, the beneficial effects of the utility model are:
1, in a kind of variable gear ratio composite turbine of the utility model system, gear comprises and engages each other by a gear and No. two gears the large speed ratio gear group formed, the little speed ratio gear group formed is engaged each other by No. three gears and No. four gears, a gear, No. three gears are coaxially fixed on output shaft, No. two gears, the transmission input shaft that No. four gears are coaxially arranged on driving mechanism can dally relative to transmission input shaft, transmission input shaft is positioned at No. two gears, nested domain between No. four gears is provided with the combined cover that can move axially along transmission input shaft, the external tooth of this combined cover and No. two gears, the internal tooth of No. four gears matches, combined cover is connected with speed-ratio control apparatus by combined cover shifting fork mechanism, when composite turbine system cloud gray model, speed-ratio control apparatus by the rotating speed of motor that receives and throttle signal judge engine running condition control clutch collar in conjunction with situation, and then realize power turbine and adjust to the speed ratio of engine crankshaft, motor is made to have higher exhaust energy reuse efficiency at full working scope, in this design, gear is only by large speed ratio gear group, little speed ratio gear group, combined cover, combined cover shifting fork mechanism and speed-ratio control apparatus are formed, its mechanical structure is simple, take volume little, be easy to install and use.Therefore, the utility model structure is simple, to take volume little.
2, a kind of variable gear ratio composite turbine of the utility model system can realize the idle running of composite turbine when motor is in small load condition, and this design can effectively reduce the running resistance of power turbine, and then reduces power turbine to the impact of engine performance.Therefore, the utility model can improve the performance of motor.
3, in a kind of variable gear ratio composite turbine of the utility model system, driving mechanism comprises flexible gearing, and it can play the effect of the transmission reducing vibration while transmitting from power turbine energy, forms overload protection.Therefore, the utility model can effectively reduce the transmission vibrated in system operation.
Accompanying drawing explanation
Structural representation of the present utility model when Fig. 1 is low speed high load working condition.
Structural representation of the present utility model when Fig. 2 is high speed high load working condition.
Structural representation of the present utility model when Fig. 3 is small load condition.
Fig. 4 is engine operation condition subregion schematic diagram.
In figure:
Pressurized machine 1, gas compressor 11, charging turbine 12, power turbine 2, output shaft 21, gear 3, large speed ratio gear group 31, a gear 311, No. two gears 312, little speed ratio gear group 32, No. three gears 321, No. four gears 322, combined cover 33, combined cover shifting fork mechanism 34, speed-ratio control apparatus 35, driving mechanism 4, transmission input shaft 41, transmission output shaft 42, flexible gearing 43, driving gear set 44, motor 5, bent axle 51, housing 6, low speed high load working condition region 7, high speed high load working condition region 8, small load condition region 9,
Arrow direction is the trend of air-flow.
Embodiment
Illustrate below in conjunction with accompanying drawing and with embodiment, the utility model to be described in further detail.
See Fig. 1 to Fig. 4, a kind of variable gear ratio composite turbine system, comprise pressurized machine 1, power turbine 2, gear 3, driving mechanism 4, described pressurized machine 1 comprises the coaxial gas compressor 11, the charging turbine 12 that connect, the exhaust end of gas compressor 11 communicates with the intake manifold of motor 5, inlet end, the exhaust end of charging turbine 12 communicate with the gas exhaust manifold of motor 5, the inlet end of power turbine 2 respectively, and the output shaft 21 of power turbine 2 is connected with the bent axle 51 of motor 5 by gear 3, driving mechanism 4 successively;
Described gear 3 comprises large speed ratio gear group 31, little speed ratio gear group 32, speed-ratio control apparatus 35, large speed ratio gear group 31 comprises an intermeshing gear 311, No. two gears 312, little speed ratio gear group 32 comprises intermeshing No. three gears 321, No. four gears 322, a described gear 311, No. three gears 321 are coaxially fixed on output shaft 21, and the transmission input shaft 41 that No. two gears 312, No. four gears 322 are coaxially arranged on driving mechanism 4 can dally relative to transmission input shaft 41;
Nested domain on described transmission input shaft 41 between No. two gears 312, No. four gears 322 is provided with the combined cover 33 that can move axially along transmission input shaft 41, the internal tooth of external tooth and No. two gears 312, No. four gears 322 of this combined cover 33 matches, and combined cover 33 is connected with speed-ratio control apparatus 35 by combined cover shifting fork mechanism 34.
Described driving mechanism 4 comprises flexible gearing 43, driving gear set 44, this flexible gearing 42 is provided with transmission input shaft 41, transmission output shaft 42, and described transmission output shaft 42 is connected with bent axle 51 by driving gear set 44.
Described gear 3, driving mechanism 4 are all arranged on the inside of housing 6.
Principle of the present utility model is described as follows:
During this variable gear ratio composite turbine system cloud gray model, first engine exhaust flows into power turbine 3 via after charging turbine 12, the kinetic energy of engine exhaust is converted into the rotating mechanical energy of power turbine 3, subsequently power turbine 3 to rotarily drive on its output shaft 21 a fixing gear 311, No. three gears 321 operate, a gear 311, the rotation of No. three gears 321 can drive again No. two gears 312, No. four gears 322 dally on transmission input shaft 41, now by the rotating speed and throttle signal receiving motor, speed-ratio control apparatus judges that engine running condition controls clutch collar in conjunction with situation, can realize adopting comparatively large speed ratio when low engine speed high load working condition, little speed ratio is adopted to operate during high speed high load working condition, dally during small load condition, realize the high efficiente callback of composite turbine system, avoid power turbine to exceed the speed limit when high engine speeds especially exceeds the speed limit operating mode simultaneously, promote composite turbine system reliability, its specific works process is as follows:
When speed-ratio control apparatus 35 judges that motor 5 is in low speed high load working condition region 7, it controls clutch collar shifting fork mechanism 34 and promotes the interior indented joint that clutch collar 33 makes itself and No. two gears 312, thus realizes the large speed ratio transmission of composite turbine;
When speed-ratio control apparatus 35 judges that motor 5 is in high speed high load working condition region 8, it controls clutch collar shifting fork mechanism 34 and promotes the interior indented joint that clutch collar 33 makes itself and No. four gears 322, thus realizes the little speed ratio transmission of composite turbine;
When speed-ratio control apparatus 35 judges that motor 5 is in small load condition region 9, its control clutch collar shifting fork mechanism 34 promote clutch collar 33 make its not with any gear engagement, No. two gears 312, No. four gears 322 dally on transmission input shaft 41, can exhaust resistance be reduced, improve the performance of motor.
Housing 6: gear 3 in the utility model, driving mechanism 4 are all arranged on the inside of housing 6, and this housing 6 not only can be used for fixing said mechanism, and lubricating oil path can be designed therein for said mechanism lubrication is provided.
Embodiment 1:
See Fig. 1 to Fig. 4, a kind of variable gear ratio composite turbine system, comprises pressurized machine 1, power turbine 2, gear 3, driving mechanism 4, described pressurized machine 1 comprises the coaxial gas compressor 11 connected, charging turbine 12, the exhaust end of gas compressor 11 communicates with the intake manifold of motor 5, the inlet end of charging turbine 12, exhaust end respectively with the gas exhaust manifold of motor 5, the inlet end of power turbine 2 communicates, described gear 3, driving mechanism 4 is all arranged on the inside of housing 6, and driving mechanism 4 comprises flexible gearing 43, driving gear set 44, this flexible gearing 42 is provided with transmission input shaft 41, transmission output shaft 42, described transmission output shaft 42 is connected with the bent axle 51 of motor 5 by driving gear set 44, and described gear 3 comprises large speed ratio gear group 31, little speed ratio gear group 32, speed-ratio control apparatus 35, large speed ratio gear group 31 comprises an intermeshing gear 311, No. two gears 312, little speed ratio gear group 32 comprises intermeshing No. three gears 321, No. four gears 322, a described gear 311, No. three gears 321 are coaxially fixed on the output shaft 21 of power turbine 2, No. two gears 312, No. four gears 322 to be coaxially arranged on transmission input shaft 41 and can to dally relative to transmission input shaft 41, described transmission input shaft 41 are positioned at No. two gears 312, nested domain between No. four gears 322 is provided with the combined cover 33 that can move axially along transmission input shaft 41, the external tooth of this combined cover 33 and No. two gears 312, the internal tooth of No. four gears 322 matches, and combined cover 33 is connected with speed-ratio control apparatus 35 by combined cover shifting fork mechanism 34,
During use, described speed-ratio control apparatus 35 first judges the operating conditions of motor by the engine speed that receives and throttle signal, then according to the operating conditions of motor control clutch collar 33 engage with No. two gears 312 or engage with No. four gears 322 or not with any gear engagement, wherein, describedly control clutch collar 33 according to operating conditions and to engage with No. two gears 312 or engage with No. four gears 322 or do not refer to any gear engagement:
When motor 5 is in low speed high load working condition region 7, speed-ratio control apparatus 35 controls clutch collar shifting fork mechanism 34 and promotes clutch collar 33 and move axially along transmission input shaft 41, make the interior indented joint of clutch collar 33 and No. two gears 312, power is passed to transmission input shaft 41 by clutch collar 33 by No. two gears 312 subsequently, and passes to bent axle 51 via flexible gearing 43, driving gear set 44 successively;
When motor 5 is in high speed high load working condition region 8, speed-ratio control apparatus 35 controls clutch collar shifting fork mechanism 34 and promotes clutch collar 33 and move axially along transmission input shaft 41, make the interior indented joint of clutch collar 33 and No. four gears 322, power is passed to transmission input shaft 41 by clutch collar 33 by No. four gears 322 subsequently, and passes to bent axle 51 via flexible gearing 43, driving gear set 44 successively;
When motor 5 is in small load condition region 9, speed-ratio control apparatus 35 controls clutch collar shifting fork mechanism 34 and promotes clutch collar 33 and move axially along transmission input shaft 41, make clutch collar 33 not with any gear engagement.
Claims (3)
1. a variable gear ratio composite turbine system, comprise pressurized machine (1), power turbine (2), gear (3), driving mechanism (4), described pressurized machine (1) comprises the coaxial gas compressor (11) connected, charging turbine (12), the exhaust end of gas compressor (11) communicates with the intake manifold of motor (5), the inlet end of charging turbine (12), exhaust end respectively with the gas exhaust manifold of motor (5), the inlet end of power turbine (2) communicates, and the output shaft (21) of power turbine (2) is successively by gear (3), driving mechanism (4) is connected with the bent axle (51) of motor (5), it is characterized in that:
Described gear (3) comprises large speed ratio gear group (31), little speed ratio gear group (32), speed-ratio control apparatus (35), large speed ratio gear group (31) comprises an intermeshing gear (311), No. two gears (312), little speed ratio gear group (32) comprises intermeshing No. three gears (321), No. four gears (322), a described gear (311), No. three gears (321) are coaxially fixed on output shaft (21), No. two gears (312), it is upper and can dally relative to transmission input shaft (41) that No. four gears (322) are coaxially arranged on the transmission input shaft (41) of driving mechanism (4),
The nested domain described transmission input shaft (41) is positioned between No. two gears (312), No. four gears (322) is provided with the combined cover (33) that can move axially along transmission input shaft (41), the external tooth of this combined cover (33) matches with the internal tooth of No. two gears (312), No. four gears (322), and combined cover (33) is connected with speed-ratio control apparatus (35) by combined cover shifting fork mechanism (34).
2. a kind of variable gear ratio composite turbine system according to claim 1, it is characterized in that: described driving mechanism (4) comprises flexible gearing (43), driving gear set (44), this flexible gearing (42) is provided with transmission input shaft (41), transmission output shaft (42), described transmission output shaft (42) is connected with bent axle (51) by driving gear set (44).
3. a kind of variable gear ratio composite turbine system according to claim 1 and 2, is characterized in that: described gear (3), driving mechanism (4) are all arranged on the inside of housing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571277.5U CN204163868U (en) | 2014-09-30 | 2014-09-30 | Variable-speed-ratio compound turbine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571277.5U CN204163868U (en) | 2014-09-30 | 2014-09-30 | Variable-speed-ratio compound turbine system |
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| Publication Number | Publication Date |
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| CN204163868U true CN204163868U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420571277.5U Expired - Lifetime CN204163868U (en) | 2014-09-30 | 2014-09-30 | Variable-speed-ratio compound turbine system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314695A (en) * | 2014-09-30 | 2015-01-28 | 东风商用车有限公司 | Variable-speed-ratio compound turbine system and application method thereof |
| CN111267604A (en) * | 2020-03-24 | 2020-06-12 | 东风商用车有限公司 | Double-self-locking variable air inlet grille structure |
| CN112590757A (en) * | 2020-12-15 | 2021-04-02 | 潍柴动力股份有限公司 | Braking power control method and device of braking system |
-
2014
- 2014-09-30 CN CN201420571277.5U patent/CN204163868U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314695A (en) * | 2014-09-30 | 2015-01-28 | 东风商用车有限公司 | Variable-speed-ratio compound turbine system and application method thereof |
| CN104314695B (en) * | 2014-09-30 | 2016-09-21 | 东风商用车有限公司 | Variable-speed-ratio compound turbine system and application method thereof |
| CN111267604A (en) * | 2020-03-24 | 2020-06-12 | 东风商用车有限公司 | Double-self-locking variable air inlet grille structure |
| CN112590757A (en) * | 2020-12-15 | 2021-04-02 | 潍柴动力股份有限公司 | Braking power control method and device of braking system |
| CN112590757B (en) * | 2020-12-15 | 2022-01-25 | 潍柴动力股份有限公司 | Braking power control method and device of braking system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20150218 |