CN104929759B - Exhaust turbocharging system and plus power, drop dynamic method and boost assist device - Google Patents
Exhaust turbocharging system and plus power, drop dynamic method and boost assist device Download PDFInfo
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- CN104929759B CN104929759B CN201510388153.2A CN201510388153A CN104929759B CN 104929759 B CN104929759 B CN 104929759B CN 201510388153 A CN201510388153 A CN 201510388153A CN 104929759 B CN104929759 B CN 104929759B
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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 discloses a kind of exhaust turbocharging system and add power, drop dynamic method and boost assist device, exhaust turbocharging system includes turbocharger, the turbocharger has inlet chamber and discharge chamber, air inlet turbine and exhaust driven gas turbine are provided with turbocharger, air inlet turbine is located in inlet chamber, and exhaust driven gas turbine is located in discharge chamber, and air inlet turbine and exhaust driven gas turbine are co-axially mounted, it also includes boost assist device, and the boost assist device has：Gas receiver；Air inlet normally close valve；First escape pipe, the import of first escape pipe are connected with gas receiver；Second escape pipe, the import of second escape pipe are connected by air inlet normally close valve with the outlet phase gas circuit of the first escape pipe, the outlet of the second escape pipe be connected with the exhaust manifold of engine after together be passed through discharge chamber.The present invention can not only make the power of engine linearly increasing with the stepping on action of gas pedal, slow down the phenomenon of its power lifting response delay, simultaneously the power of engine is weakened immediately with the loosening up of gas pedal, slow down the phenomenon of its deceleration delay of response.
Description
Technical field
The present invention relates to a kind of exhaust turbocharging system and add power, drop dynamic method and boost assist device.
Background technology
At present, strengthen with the environmental consciousness of people, fuel-economizing and the strong engine of power is becoming increasingly popular, small displacement gives up
Air turbine engine with supercharger turns into the main equipment on automobile now.But exhaust-driven turbo-charger exhaust-gas turbo charger has time-lag effect, due to
The pressurization of turbocharger is mainly produced by the air inlet turbine in air intake duct, and air inlet turbine is by positioned at exhaust duct
In exhaust driven gas turbine drive, the rotating speed of exhaust driven gas turbine is determined by engine back pressure, add when driver steps on throttle suddenly
When fast, because now engine back pressure will not increase immediately, the secondary speed in turbocharger does not catch up with step and made
The pressure of supercharging can not increase immediately, and the power of engine can not be linearly increasing with the action of gas pedal, its actual mistake
Journey be after driver steps on gas pedal suddenly, with more air and fuel oil enter after gas in-cylinder combustion produce it is stronger
Pressure at expulsion, this pressure at expulsion driving exhaust driven gas turbine accelerates, because inlet and outlet turbine is fixedly connected, air inlet turbine sync plus white,
So that the boost pressure rise of air inlet, this process produce longer time delay, generally 5-8 seconds；On the other hand, when driving
When the person of sailing loosens (including being totally released) throttle suddenly, due to the response delay of above-mentioned secondary speed so that inlet and outlet turbine
Rotating speed will not slow down rapidly with loosening for gas pedal so that the power of engine will not be dynamic with loosening for gas pedal
Make and weaken immediately.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided a kind of exhaust gas turbocharge system
System, it can not only make the power of engine linearly increasing with the stepping on action of gas pedal, it is anti-to slow down the lifting of its power
The phenomenon that should postpone, while the power of engine is weakened immediately with the loosening up of gas pedal, slow down its deceleration
The phenomenon of delay of response.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of exhaust turbocharging system, including turbine
Booster, the turbocharger have inlet chamber and discharge chamber, air inlet turbine and exhaust driven gas turbine are provided with turbocharger,
Air inlet turbine is located in inlet chamber, and exhaust driven gas turbine is located in discharge chamber, and air inlet turbine and exhaust driven gas turbine are co-axially mounted, and it also includes
Boost assist device, and the boost assist device has：
Gas receiver；
Air inlet normally close valve；
First escape pipe, the import of first escape pipe are connected with gas receiver；
Second escape pipe, the outlet phase gas circuit that the import of second escape pipe passes through air inlet normally close valve and the first escape pipe
Connection, the outlet of the second escape pipe be connected with the exhaust manifold of engine after together be passed through discharge chamber；
First clutch driving unit, first clutch driving unit have the first transmission mechanism, the normally closed threshold switch of air inlet
Mechanism and the first one-way clutch, gas pedal are connected by the first transmission mechanism and air inlet normally close valve switching mechanism, entered
Gas normally close valve switching mechanism is equipped with air inlet normally close valve, so that air inlet normally close valve switching mechanism switchs air inlet normally close valve, institute
The first one-way clutch is stated to be arranged in the first transmission mechanism；When step on the throttle pedal when, the first one-way clutch driving first
Transmission mechanism works, and when the rotating speed counterclockwise of gas pedal reaches setting value, air inlet normally close valve switching mechanism is in gas pedal
In the presence of make the path that air inlet normally close valve is connected between the first escape pipe and the second escape pipe；When gas pedal is not up to set
Rotating speed counterclockwise when, air inlet normally close valve switching mechanism makes air inlet normally close valve disconnect between the first escape pipe and the second escape pipe
Path；When close the throttle, the first one-way clutch disconnects the transmission of the first transmission mechanism, and air inlet normally close valve disconnects first
Path between escape pipe and the second escape pipe.
The boost assist device also has gas storage normally close valve, the first cylinder, the second cylinder and the second clutch driving dress
Put, the import of the first cylinder is connected with the exhaust manifold of engine, the import of the second cylinder by gas storage normally close valve with
The outlet phase gas circuit connection of first cylinder, the outlet of the second cylinder are connected with the gas receiver, and second clutch is driven
Dynamic device has the second transmission mechanism, gas storage normally close valve switching mechanism and the second one-way clutch, and the first one-way clutch
Work steering with the second one-way clutch is on the contrary, gas pedal is passed by the second transmission mechanism and gas storage normally close valve switching mechanism
Dynamic connection, gas storage normally close valve switching mechanism are equipped with gas storage normally close valve, so that gas storage normally close valve switching mechanism switchs gas storage
Normally close valve, second one-way clutch are arranged in the second transmission mechanism；When close the throttle, the second one-way clutch
The second transmission mechanism is driven to work, when the rotating speed clockwise of gas pedal reaches setting value, gas storage normally close valve switching mechanism exists
The path for making gas storage normally close valve connect between the first cylinder and the second cylinder in the presence of gas pedal；Stepped on when stepping on the throttle
During plate, the second one-way clutch disconnects the transmission of the second transmission mechanism, and gas storage normally close valve disconnects the first cylinder and the second gas storage
Path between pipe；When gas pedal is not up to the rotating speed clockwise set, gas storage normally close valve switching mechanism makes gas storage normally closed
Valve disconnects the path between the first cylinder and the second cylinder.
A kind of concrete structure of first transmission mechanism and/or the second transmission mechanism is further provided, described first passes
Motivation structure and/or the second transmission mechanism include driving pulley, belt, small runner and great wheel, driving pulley and are fixedly connected on oil
The hinged place of door pedal, driving pulley are connected by belt and small runner；In the first transmission mechanism, the small runner and
Great wheel is selectively connected by the first one-way clutch；In the second transmission mechanism, the small runner and great wheel lead to
The second one-way clutch is crossed selectively to be connected.
The concrete structure of a kind of air inlet normally close valve switching mechanism and/or gas storage normally close valve switching mechanism is further provided,
The air inlet normally close valve switching mechanism and/or gas storage normally close valve switching mechanism have multiple switch clamp mechanism, the switch handset
Structure includes secter pat, sliding sleeve, connecting spring and traveller, and traveller is fixedly connected on great wheel, and sliding sleeve is fixedly connected on secter pat
On, traveller slide fit is in sliding sleeve, and the both ends of the connecting spring are fixedly connected with traveller with secter pat respectively.
A kind of concrete structure of air inlet normally close valve is further provided, the air inlet normally close valve has air inlet housing, air inlet
Valve element, inlet seal ring and return spring, air inlet valve element slide fit is in air inlet housing, and inlet seal ring is arranged on intake valve
On core, inlet seal ring is engaged with the import of the second escape pipe and the outlet of the first escape pipe respectively, the both ends of return spring
Top and the air inlet housing of air inlet valve element are connected respectively, and the secter pat in air inlet valve element and air inlet normally close valve switching mechanism can abut
Coordinate, and when the secter pat in air inlet normally close valve switching mechanism is static, have between the bottom of air inlet valve element and secter pat
Gap.
A kind of concrete structure of gas storage normally close valve is further provided, the gas storage normally close valve has gas storage shell, gas storage
Valve element and gas storage sealing ring, gas storage valve element slide fit is in gas storage shell, and gas storage sealing ring is arranged on gas storage valve element, gas storage
Sealing ring is engaged with the import of the second cylinder and the outlet of the first cylinder respectively, gas storage valve element and the normally closed threshold switch of gas storage
In-house secter pat abuts cooperation all the time.
Further for preventing in extreme circumstances, the waste gas in exhaust manifold is inversely flowed into gas receiver, gas receiver
Exit is provided with Outlet check valves.
Further for preventing in extreme circumstances, the compressed gas in gas receiver is backward flowed into inlet manifold,
The position that the outlet of the second described cylinder is connected with the gas receiver is provided with import check valve.
Present invention also offers a kind of boost assist device, and it is the supercharging auxiliary dress that the exhaust turbocharging system uses
Put.
Present invention also offers a kind of exhaust turbocharging system plus dynamic method, it is as follows the step of this method：Step on
Gas pedal, and the first one-way clutch engages the transmission of the first transmission mechanism, when the rotating speed counterclockwise of gas pedal reaches
During setting value, air inlet normally close valve switching mechanism makes air inlet normally close valve connect the first escape pipe and second in the presence of gas pedal
Path between escape pipe, the waste gas with certain pressure in gas receiver is stored in into exhaust manifold and the row of direct drive
Air turbine accelerates, and exhaust driven gas turbine promotes air inlet turbine to accelerate again, so as to realize that supercharging accelerates.
It is as follows the step of this method present invention also offers a kind of drop dynamic method of exhaust turbocharging system：Loosen
Gas pedal, and the second one-way clutch engages the transmission of the second transmission mechanism, when the rotating speed clockwise of gas pedal reaches
During setting value, gas storage normally close valve switching mechanism makes gas storage normally close valve connect the first cylinder and second in the presence of gas pedal
Path between cylinder, there is in exhaust manifold the waste gas of certain pressure to enter in gas receiver and store, so as to reduce exhaust discrimination
Air pressure in pipe, makes exhaust driven gas turbine slow down immediately, so that air inlet turbine synchronously slows down, reduces air inflow and reduces air inlet pressure
Power, reduce the power of engine.
After employing above-mentioned technical proposal, the present invention can not only make the power of engine as stepping on for gas pedal is dynamic
Make and it is linearly increasing, slow down its power lifting response delay phenomenon.Cause the power of engine with gas pedal simultaneously
Loosening up and weaken immediately, slow down the phenomenon of its deceleration delay of response.
Brief description of the drawings
Fig. 1 is the structural representation of the exhaust turbocharging system of the present invention；
Fig. 2 is the air inlet normally close valve of the present invention and the connection diagram of air inlet normally close valve switching mechanism.
Embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail.
As shown in Figure 1, 2, a kind of exhaust turbocharging system, including turbocharger 3, turbocharger 3 have air inlet
Chamber and discharge chamber, air inlet turbine 4 and exhaust driven gas turbine 6 are provided with turbocharger 3, air inlet turbine 4 is located in inlet chamber, exhaust
Turbine 6 is located in discharge chamber, and air inlet turbine 4 and exhaust driven gas turbine 6 are co-axially mounted, and it also includes boost assist device, and the increasing
Pressure servicing unit has：
Gas receiver 14；
Air inlet normally close valve 17；
First escape pipe 19, the import of the first escape pipe 19 are connected with gas receiver 14；
Second escape pipe 20, the import of second escape pipe 20 are gone out by air inlet normally close valve 17 and the first escape pipe 19
Mouth phase gas circuit connection, after the outlet of the second escape pipe 20 is connected with one end of neighbouring discharge chamber on the exhaust manifold 8 of engine 9
Discharge chamber is passed through together；
First clutch driving unit, the first clutch driving unit have the first transmission mechanism, air inlet normally close valve switching mechanism
18 and first one-way clutch 22, gas pedal 26 pass through the first transmission mechanism and connect with the transmission of air inlet normally close valve switching mechanism 18
Connect, air inlet normally close valve switching mechanism 18 is equipped with air inlet normally close valve 17, and the first one-way clutch 22 is arranged on the first transmission
In mechanism；When step on the throttle pedal 26 when, the first one-way clutch 22 drives the work of the first transmission mechanism, inverse when gas pedal
When hour hands rotating speed reaches setting value, air inlet normally close valve switching mechanism 18 connects air inlet normally close valve 17 in the presence of gas pedal 26
Logical path between first escape pipe 19 and the second escape pipe 20；When gas pedal 26 is not up to the rotating speed counterclockwise set,
Air inlet normally close valve switching mechanism 18 makes air inlet normally close valve 17 disconnect the path between the first escape pipe 19 and the second escape pipe 20；When
During close the throttle 26, the first one-way clutch 22 disconnects the transmission of the first transmission mechanism, and air inlet normally close valve 17 disconnects first
Path between the escape pipe 20 of escape pipe 19 and second.
As shown in figure 1, the boost assist device also has gas storage normally close valve 15, the first cylinder 12, the second cylinder 13
With the second clutch driving unit, the import of the first cylinder 12 and one end phase away from discharge chamber on the exhaust manifold 8 of engine 9
Connection, the import of the second cylinder 13 are connected by gas storage normally close valve 15 with the outlet phase gas circuit of the first cylinder 12, the second storage
The outlet of tracheae 13 is connected with gas receiver 14, and the second clutch driving unit has the second transmission mechanism, the normally closed threshold switch of gas storage
The one-way clutch 21 of mechanism 16 and second, and the work of the first one-way clutch 22 and the second one-way clutch 21 turns to phase
Instead, gas pedal 26 is connected by the second transmission mechanism and gas storage normally close valve switching mechanism 16, gas storage normally close valve switching on and shutting down
Structure 16 is equipped with gas storage normally close valve 15, and second one-way clutch 21 is arranged in the second transmission mechanism；When loosening oil
During door pedal 26, the second one-way clutch 21 drives the work of the second transmission mechanism, when the rotating speed clockwise of gas pedal 26 reaches
During setting value, gas storage normally close valve switching mechanism 16 makes gas storage normally close valve 15 connect the first cylinder in the presence of gas pedal 26
12 and the second path between cylinder 13；When step on the throttle pedal 26 when, the second one-way clutch 21 disconnect the second driver
The transmission of structure, gas storage normally close valve 15 disconnect the path between the first cylinder 12 and the second cylinder 13；When gas pedal 26 not
When reaching the rotating speed clockwise of setting, gas storage normally close valve switching mechanism 16 makes gas storage normally close valve 15 disconnect the first cylinder 12 and the
Path between two cylinders 13.
As shown in figure 1, the first transmission mechanism and/or the second transmission mechanism include driving pulley 23, belt 24, small runner 48
With great wheel 47, driving pulley 23 is fixedly connected on the hinged place of gas pedal 26 and turned with gas pedal 26 around hinged place
Dynamic, driving pulley 23 is connected by belt 24 and small runner 48；In the first transmission mechanism, small runner 48 and great wheel 47
Pass through the selectivity drive connection of the first one-way clutch 22；In the second transmission mechanism, small runner 48 and great wheel 47 pass through
The selectivity drive connection of two one-way clutch 21.
As shown in Fig. 2 air inlet normally close valve switching mechanism 18 and/or gas storage normally close valve switching mechanism 16 have multiple switch
Mechanism, the switch clamp mechanism include secter pat 41, sliding sleeve 44, connecting spring 45 and traveller 46, and traveller 46 is fixedly connected on greatly
On runner 47, sliding sleeve 44 is fixedly connected on secter pat 41, and the slide fit of traveller 46 is in sliding sleeve 44, and the connecting spring 45
Both ends are fixedly connected with traveller 46, secter pat 41 respectively.
As shown in Fig. 2 air inlet normally close valve 17 has air inlet housing 31, air inlet valve element 32, inlet seal ring 33 and return bullet
Spring 34, the slide fit of air inlet valve element 32 is in air inlet housing 31, and inlet seal ring 33 is arranged on air inlet valve element 32, inlet seal
Ring 33 is engaged with the import of the second escape pipe 20 and the outlet of the first escape pipe 19 respectively, the return spring 34 of compressive state
Both ends connect top and the air inlet housing 31 of air inlet valve element 32 respectively, in air inlet valve element 32 and air inlet normally close valve switching mechanism 18
Secter pat 41 can abut cooperation, and when the secter pat 41 in air inlet normally close valve switching mechanism 18 is static, air inlet valve element 32
There is gap between bottom and secter pat 41.
Gas storage normally close valve 15 has gas storage shell, gas storage valve element and gas storage sealing ring, and gas storage valve element slide fit is in gas storage shell
It is interior, and gas storage sealing ring is arranged on gas storage valve element, the import with the second cylinder 13 and the first storage respectively of gas storage sealing ring
The outlet of tracheae 12 is engaged, and the secter pat 41 in gas storage valve element and gas storage normally close valve switching mechanism 16 abuts cooperation all the time.Storage
Gas valve core utilizes its own gravity return.
Carry out return by return spring 34 relative to air inlet valve element 32, gas storage valve element relies on self gravitation return, makes gas storage
Valve element is more easy to open than air inlet valve element 32, so that the gas storage process of gas receiver 14 is more frequent than deflation course, ensures gas receiver
14 have enough compressed gas.
As shown in figure 1, the exit of the gas receiver 14 is provided with Outlet check valves 30, for preventing in extreme case
Under, the waste gas in exhaust manifold 8 is backward flowed into gas receiver 14.
As shown in figure 1, to be provided with import unidirectional at the position that the outlet of the second cylinder 13 is connected with the gas receiver 14
Valve 29, for preventing in extreme circumstances, the compressed exhaust gas in gas receiver 14 are backward flowed into exhaust manifold 8.
Air inlet locating piece 35 is provided with the outer wall of described air inlet valve element 32, is set on the inwall of described air inlet housing 31
Air inlet limited block 36 is equipped with, air inlet locating piece 35 and air inlet limited block 36 are engaged the lower slider row for limiting air inlet valve element 32
Journey, the inwall of air inlet locating piece 35 and air inlet housing 31 are slidingly sealed cooperation, gas leakage when main purpose is to prevent that valve from opening.
Gas storage locating piece is also equipped with the outer wall of described gas storage valve element, is provided with the inwall of described gas storage shell
Gas storage limited block, gas storage locating piece and gas storage limited block are engaged the lower slider stroke for limiting gas storage valve element, gas storage positioning
The inwall of block and gas storage shell is slidingly sealed cooperation.
Air inlet housing and the passage 50 that balance inner and outer air pressure is respectively equipped with the roof of gas storage shell.
The method of work of the present invention is as follows：
(1) driver steps on gas pedal 26 suddenly, and gas pedal 26 27 is rotated, is fixedly connected with rotating shaft 27 around the shaft
The rotate counterclockwise of driving pulley 23, in the first transmission mechanism, driving pulley 23 drives small runner 48 counterclockwise by belt 24
Rotate, inner due to the first one-way clutch 22 is connected with small runner 48, and its outer end is connected with great wheel 47, and small runner 48 is logical
Cross the first one-way clutch 22 driving great wheel 47 to rotate, great wheel 47 drives each sector in air inlet normally close valve switching mechanism 18
Block 41 rotates, and each secter pat 41 makees centrifugal motion with respect to great wheel 47, when gas pedal 26 steps on speed and reaches setting value, each fan
Shape block 41 eliminates gap and promotes the air inlet valve element 32 in air inlet normally close valve 17 upward/outer mobile, makes inlet seal ring therein
33 leave from the position of closed on both sides pipeline, and the first escape pipe 19 communicates with the second escape pipe 20, is stored in gas receiver 14 originally
The interior waste gas with certain pressure enters in exhaust manifold 8 and directly drives exhaust driven gas turbine 6 and accelerates, exhaust driven gas turbine 6 promote into
Air turbine 4 accelerates, and both adds air inflow, makes the rise of air inlet turbine rotating speed again, improves its pressurized effect, improves inlet manifold 11
In air pressure, the kinetic force of engine 9 is improved rapidly, reduce the time delay of above-mentioned power lifting；When driver subtracts
The rotating speed of slow gas pedal 26 is to when being less than setting value or maintaining gas pedal 26, and said process terminates, air inlet normally close valve
Air inlet valve element 32 in 17 return, the closed on both sides pipeline of inlet seal ring 33 under the effect of return spring 34.
(2) driver's close the throttle 26, gas pedal 26 27 reversely rotates around the shaft, in the second transmission mechanism,
Driving pulley 23 turns clockwise, and driving pulley 23 drives small runner 48 to rotate clockwise by belt 24, due to second unidirectional
The inner of clutch 21 is connected with small runner 48, and its outer end is connected with great wheel 47, and small runner 48 passes through the second one-way clutch
21 driving great wheels 47 rotate, and great wheel 47 drives each secter pat 41 in gas storage normally close valve switching mechanism 16 to rotate, each sector
Block 41 makees centrifugal motion relative to great wheel 47, when gas pedal 26 is when stepping on speed and reaching setting value, each 41 grams of secter pat
Take the gravity of gas storage valve, promote the gas storage valve element in gas storage normally close valve 16 to move up, make gas storage sealing ring therein from closing
The position of two side ducts is left, and the first cylinder 12 communicates with the second cylinder 13, useless with certain pressure in exhaust manifold 8
Gas enters in gas receiver 14 by check valve 29 to be stored, and so as to reduce the air pressure in exhaust manifold rapidly, makes exhaust driven gas turbine immediately
Slow down, so that air inlet turbine synchronously slows down, reduce air inflow and reduce admission pressure, the rapid power for reducing engine 9, subtract
The time delay that the small engine power caused by turbine rotation inertia declines, when the rotating speed of gas pedal 26 is less than setting
During value, said process terminates, gas storage valve element return under gravity, the pipeline of gas storage sealing ring closed on both sides.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
It is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in this hair
Within bright protection domain.
Claims (10)
- A kind of 1. exhaust turbocharging system, it is characterised in that：Including turbocharger (3), the turbocharger (3) has Inlet chamber and discharge chamber, described turbocharger (3) is interior to be provided with air inlet turbine (4) and exhaust driven gas turbine (6), air inlet turbine (4) in inlet chamber, exhaust driven gas turbine (6) is located in discharge chamber, and air inlet turbine (4) and exhaust driven gas turbine (6) are co-axially mounted, and it is special Sign is that it also includes boost assist device, and the boost assist device has：Gas receiver (14)；Air inlet normally close valve (17)；First escape pipe (19), the import of first escape pipe (19) are connected with gas receiver (14)；Second escape pipe (20), the import of second escape pipe (20) pass through air inlet normally close valve (17) and the first escape pipe (19) The connection of outlet phase gas circuit, the outlet of the second escape pipe (20) be connected with the exhaust manifold (8) of engine (9) after together be passed through Discharge chamber；First clutch driving unit, first clutch driving unit have the first transmission mechanism, air inlet normally close valve switching mechanism (18) and the first one-way clutch (22), gas pedal (26) pass through the first transmission mechanism and air inlet normally close valve switching mechanism (18) Drive connection, air inlet normally close valve switching mechanism (18) is equipped with air inlet normally close valve (17), so as to air inlet normally close valve switching on and shutting down Structure (18) switch air inlet normally close valve (17), first one-way clutch (22) are arranged in the first transmission mechanism；The boost assist device also have gas storage normally close valve (15), the first cylinder (12), the second cylinder (13) and second from Drive device is closed, the import of the first cylinder (12) is connected with the exhaust manifold (8) of engine (9), the second cylinder (13) Import be connected by gas storage normally close valve (15) with the outlet phase gas circuit of the first cylinder (12), the outlet of the second cylinder (13) It is connected with the gas receiver (14), second clutch driving unit has the second transmission mechanism, gas storage normally close valve switching on and shutting down Structure (16) and the second one-way clutch (21), and the work of the first one-way clutch (22) and the second one-way clutch (21) turns To on the contrary, gas pedal (26) is connected by the second transmission mechanism and gas storage normally close valve switching mechanism (16), gas storage is normally closed Threshold switch mechanism (16) is equipped with gas storage normally close valve (15), so that gas storage normally close valve switching mechanism (16) switch gas storage is normally closed Valve (15), second one-way clutch (21) are arranged in the second transmission mechanism.
- 2. exhaust turbocharging system according to claim 1, it is characterised in that：Described the first transmission mechanism and/or Second transmission mechanism includes driving pulley (23), belt (24), small runner (48) and great wheel (47), and driving pulley (23) is fixed The hinged place of gas pedal (26) is connected to, driving pulley (23) is connected by belt (24) and small runner (48)； In one transmission mechanism, the small runner (48) and great wheel (47) are selectively connected by the first one-way clutch (22)； In the second transmission mechanism, the small runner (48) and great wheel (47) are connected by the second one-way clutch (21) selectively transmission Connect.
- 3. exhaust turbocharging system according to claim 2, it is characterised in that：The air inlet normally close valve switching mechanism (18) and/or gas storage normally close valve switching mechanism (16) has multiple switch clamp mechanism, and the switch clamp mechanism includes secter pat (41), sliding sleeve (44), connecting spring (45) and traveller (46), traveller (46) are fixedly connected on great wheel (47), sliding sleeve (44) It is fixedly connected on secter pat (41), traveller (46) slide fit is in sliding sleeve (44), and the both ends of the connecting spring (45) point It is not fixedly connected with traveller (46) with secter pat (41).
- 4. exhaust turbocharging system according to claim 3, it is characterised in that：The air inlet normally close valve (17) have into Gas shell (31), air inlet valve element (32), inlet seal ring (33) and return spring (34), air inlet valve element (32) slide fit is outside air inlet In shell (31), and inlet seal ring (33) is arranged on air inlet valve element (32), inlet seal ring (33) respectively with the second outlet Manage the import of (20) and the outlet of the first escape pipe (19) is engaged, the both ends of return spring (34) connect air inlet valve element respectively (32) top and air inlet housing (31), the secter pat (41) in air inlet valve element (32) and air inlet normally close valve switching mechanism (18) can Abut and coordinate, and when the secter pat (41) in air inlet normally close valve switching mechanism (18) is static, the bottom of air inlet valve element (32) There is gap between secter pat (41).
- 5. exhaust turbocharging system according to claim 4, it is characterised in that：The gas storage normally close valve (15) has storage Gas shell, gas storage valve element and gas storage sealing ring, gas storage valve element slide fit is in gas storage shell, and gas storage sealing ring is arranged on gas storage On valve element, gas storage sealing ring is engaged with the import of the second cylinder (13) and the outlet of the first cylinder (12) respectively, gas storage Secter pat (41) in valve element and gas storage normally close valve switching mechanism (16) abuts cooperation all the time.
- 6. exhaust turbocharging system according to claim 1, it is characterised in that：The exit of the gas receiver (14) is set It is equipped with Outlet check valves (30).
- 7. the exhaust turbocharging system according to any one of claim 2 to 6, it is characterised in that：The second described storage The outlet of tracheae (13) is provided with import check valve (29) with the position that the gas receiver (14) is connected.
- A kind of 8. boost assist device, it is characterised in that：It increases for the exhaust gas turbine as any one of claim 1 to 6 The boost assist device that pressure system uses.
- 9. a kind of exhaust turbocharging system as any one of claim 1 to 7 adds dynamic method, it is characterised in that The step of this method, is as follows：Step on the throttle pedal (26), and the first one-way clutch (22) engages the biography of the first transmission mechanism Dynamic, when the rotating speed counterclockwise of gas pedal (26) reaches setting value, air inlet normally close valve switching mechanism (18) is in gas pedal (26) path for making air inlet normally close valve (17) connect between the first escape pipe (19) and the second escape pipe (20) in the presence of, storage Enter in exhaust manifold (8) in the waste gas with certain pressure in gas receiver (14) and directly drive exhaust driven gas turbine (6) and accelerate, Exhaust driven gas turbine (6) promotes air inlet turbine (4) to accelerate again, so as to realize that supercharging accelerates.
- 10. a kind of drop dynamic method of exhaust turbocharging system as any one of claim 1 to 7, its feature exist It is as follows in this method the step of：Close the throttle (26), and the second one-way clutch (21) engages the second transmission mechanism Transmission, when the rotating speed clockwise of gas pedal (26) reaches setting value, gas storage normally close valve switching mechanism (16) is in gas pedal (26) path for making gas storage normally close valve (15) connect between the first cylinder (12) and the second cylinder (13) in the presence of, exhaust The waste gas with certain pressure enters in gas receiver (14) and stored in manifold (8), so as to reduce the air pressure in exhaust manifold (8), Exhaust driven gas turbine (6) is slowed down immediately, so that air inlet turbine (4) synchronously slows down, reduce air inflow and reduce admission pressure, reduce The power of engine (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510388153.2A CN104929759B (en) | 2015-07-03 | 2015-07-03 | Exhaust turbocharging system and plus power, drop dynamic method and boost assist device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510388153.2A CN104929759B (en) | 2015-07-03 | 2015-07-03 | Exhaust turbocharging system and plus power, drop dynamic method and boost assist device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104929759A CN104929759A (en) | 2015-09-23 |
| CN104929759B true CN104929759B (en) | 2017-11-14 |
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Family Applications (1)
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| CN201510388153.2A Active CN104929759B (en) | 2015-07-03 | 2015-07-03 | Exhaust turbocharging system and plus power, drop dynamic method and boost assist device |
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| CN106358602A (en) * | 2015-07-24 | 2017-02-01 | 苏州金威特工具有限公司 | Working method of mower with exhaust gas turbocharging uxiliary device |
| CN108443032A (en) * | 2015-07-24 | 2018-08-24 | 朱保生 | Using the grass trimmer of exhaust gas turbocharge auxiliary device and petrol engine |
| FR3041697B1 (en) * | 2015-09-29 | 2017-10-06 | Peugeot Citroen Automobiles Sa | METHOD FOR CONTROLLING CLOSURE FORCE AT LEAST PARTIAL OF A DISCHARGE VALVE OF A TURBOOCOMPRESS ENGINE |
| CN106089504A (en) * | 2016-06-20 | 2016-11-09 | 上海交通大学 | Engine brake energy recycling device |
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| JP2007016721A (en) * | 2005-07-08 | 2007-01-25 | Hitachi Ltd | Motor driven supercharging device |
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| US6029452A (en) * | 1995-11-15 | 2000-02-29 | Turbodyne Systems, Inc. | Charge air systems for four-cycle internal combustion engines |
| CN102667097A (en) * | 2009-12-23 | 2012-09-12 | 克诺尔商用车制动系统有限公司 | Exhaust gas turbocharger for an internal combustion machine having an unburnt gas supply device and a corresponding arrangement |
| CN102182545A (en) * | 2011-01-31 | 2011-09-14 | 潍柴动力股份有限公司 | Engine and pressurizing control valve thereof |
| CN204900059U (en) * | 2015-07-03 | 2015-12-23 | 江苏理工学院 | Exhaust turbine turbocharging system and pressure boost auxiliary device |
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