CN204041220U - For the waste gas utilization device of turbo charge system - Google Patents
For the waste gas utilization device of turbo charge system Download PDFInfo
- Publication number
- CN204041220U CN204041220U CN201420511064.3U CN201420511064U CN204041220U CN 204041220 U CN204041220 U CN 204041220U CN 201420511064 U CN201420511064 U CN 201420511064U CN 204041220 U CN204041220 U CN 204041220U
- Authority
- CN
- China
- Prior art keywords
- piston
- inwall
- turbine
- waste gas
- adjutage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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 utility model discloses a kind of waste gas utilization device for turbo charge system, comprise volute, turbine, inlet exhaust gas pipe, it is characterized in that: be provided with exhaust flow controlling mechanism, described exhaust flow controlling mechanism comprises the adjutage with outer wall and elasticity inwall, the pipeline one end formed in adjutage elasticity inwall is communicated with inlet exhaust gas pipe, the other end is communicated with volute, form between outer wall and elasticity inwall and regulate chamber, be communicated with described adjustment chamber and be provided with piston cavity, piston is provided with in piston cavity, liquid is filled with in described adjustment chamber and between adjustment chamber to piston, piston two-way motion driving mechanism is connected with described piston.The utility model, by regulating the liquid in chamber, changes adjutage inwall caliber, and realize waste gas utilization and control, exhaust gas flow loss is little; Can continuous control, turbine and Engine Matching more outstanding.
Description
Technical field
The utility model relates to a kind of turbo charge system, is specifically related to a kind of waste gas utilization device for turbo charge system.
Background technique
The Main Function of the turbo charge system of motor improves air input of engine by air, thus improve power and the moment of torsion of motor.A kind of form is wherein, utilize motor to discharge the inertia impulsive force of tail gas to promote the turbine in turbine chamber, turbine drives again coaxial impeller, the air that wheel compresses is sent here by air-strainer pipeline, makes it supercharging and enters cylinder.When engine speed speeds, the tail gas velocity of discharge and misfortune wheel speed also synchronously speed, impeller just compresses more air and enters cylinder, and the pressure of air and density increase the more fuel that can burn, and corresponding increase fuel quantity just can increase the output power of motor.
For performance and the emission request of motor under satisfied different operating mode, usually adopt double flow channel formula turbine in prior art, two runners connecting tail gas are arranged in juxtaposition, and in the low-speed mode, use a runner, use two runners in high speed mode.There is following defect in this structure: two runners that (1) is arranged in juxtaposition can increase the area of contact of tail gas and pipeline, cause flow losses to increase; (2) control mode can only realize low speed and high speed two kinds of patterns, affect turbine and Engine Matching performance; (3) adopt Valve controlling runner break-make, owing to containing more impurity in tail gas, easily cause failsafe valve, even therefore cause engine damage.
Chinese invention patent application CN101985897A discloses a kind of complex turbine device with variable section, channel turbine spiral case is provided with two air-flow paths, channel turbine spiral case is provided with the spiral case air outlet and volute air-inlet mouth that are communicated with air-flow path, composite turbine impeller is provided with in channel turbine spiral case, described composite turbine impeller is composited by two turbine wheels, two turbine wheels and two air-flow path one_to_one corresponding.When low engine speed, air inlet adjustment valve cuts out, and all exhausts all enter small flow channels, and within the engine during high rotating speed, air inlet adjustment valve is opened, and valve control mechanism controls the aperture of air inlet adjustment valve, and reasonable distribution enters the gas flow of size runner.This technological scheme, by controlling the aperture of air inlet adjustment valve, increases the matching of turbine and motor, but can not solve aforementioned (1), (3) two problems equally.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of waste gas utilization device for turbo charge system, to increase the matching performance of turbine and motor, reduces flow losses simultaneously, reduces rate of breakdown.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of waste gas utilization device for turbo charge system, comprise volute, turbine, inlet exhaust gas pipe, be provided with exhaust flow controlling mechanism, described exhaust flow controlling mechanism comprises the adjutage with outer wall and elasticity inwall, the pipeline one end formed in adjutage elasticity inwall is communicated with inlet exhaust gas pipe, the other end is communicated with volute, form between outer wall and elasticity inwall and regulate chamber, be communicated with described adjustment chamber and be provided with piston cavity, piston is provided with in piston cavity, liquid is filled with in described adjustment chamber and between adjustment chamber to piston, piston two-way motion driving mechanism is connected with described piston.
Further technological scheme, is provided with spring between described outer wall and elasticity inwall.
Preferably, described spring is extension spring.
Preferred technological scheme, described piston two-way motion driving mechanism comprises Double-directional rotary electric motor and controller circuit, tooth transmission system, and described tooth transmission system is in transmission connection the output shaft of Double-directional rotary motor and piston rod.
The controlling method of the waste gas utilization device for turbo charge system of the present utility model, comprises the following steps:
(1) engine operating condition parameter is obtained, calculation requirement boost pressure theoretical value;
(2) current booster pressure is detected;
(3) if require that boost pressure theoretical value equals current booster pressure, step (1) is returned; If require that boost pressure theoretical value is greater than current booster pressure, the action of piston two-way motion driving mechanism control piston, makes the liquid in adjustment chamber flow to piston cavity, increases adjutage inwall caliber; If require that boost pressure theoretical value is less than current booster pressure, the action of piston two-way motion driving mechanism control piston, makes the liquid in piston cavity flow to adjustment chamber, reduces adjutage inwall caliber;
(4) step (2) and (3) is repeated.
In technique scheme, described engine operating condition parameter is engine speed and engine load, and adjutage inwall caliber adjusts with the change of engine speed and engine load.The relation of adjutage inwall caliber b and engine speed Ld, engine load Ne can be expressed as b=f (Ne, Ld), demarcates the best boost pressure that can obtain demand by experiment, makes map chart, as shown in Figure 4.
Usually, can obtain from the relation of adjutage inwall caliber and engine operating condition, when engine speed is certain, when engine load increases, increase adjutage inwall caliber; When engine speed is certain, when engine load reduces, reduce adjutage inwall caliber; When engine load is certain, when engine speed increases, increase adjutage inwall caliber; When engine load is certain, when engine speed reduces, reduce adjutage inwall caliber.
Working principle of the present utility model is, when requiring large air inflow, adjutage inwall caliber size is made to become large by controlling flow of fluid, air inflow increases instantaneously, waste gas utilization rate increases, and turbine efficiency improves, when high stabilization of speed, Comparatively speaking air inflow increases, and utilizes tail gas utilization efficiency fully.
When deceleration drops to low speed, control liquid reverse flow and adjutage inwall caliber size is reduced, now can utilize the kinetic energy of tail gas, turbine is responded in advance.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model only needs to arrange a tail gas runner, compared with being arranged in juxtaposition structure with existing double flow channel, tail gas and pipe contact area little, flow losses reduce.
2. the utility model is by arranging elasticity inwall, and with the caliber of hydraulic control inwall, achieves controlled in real time continuously, compares with low speed in prior art and high speed two kinds of patterns, and the utility model can continuous control, turbine and Engine Matching more outstanding.
3. the utility model does not need to use Valve controlling, and the situation avoiding the stained valve causing trouble of tail gas occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the using state schematic diagram in embodiment;
Fig. 3 is the control flow chart in embodiment;
Fig. 4 is the suitableeest boost pressure map chart of different operating mode.
Wherein: 1, volute; 2, turbine; 3, inlet exhaust gas pipe; 4, outer wall; 5, elasticity inwall; 6, spring; 7, chamber is regulated; 8, piston cavity; 9, piston; 10, tooth transmission system; 11, Double-directional rotary motor; 12, relay; 13, relay; 14, impeller.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one: shown in Fig. 1 and Fig. 2, and a kind of waste gas utilization device for turbo charge system, comprises volute 1, turbine 2, inlet exhaust gas pipe 3, and turbine 2 and impeller 14 are coaxially arranged.Be provided with exhaust flow controlling mechanism, described exhaust flow controlling mechanism comprises the adjutage with outer wall 4 and elasticity inwall 5, spring 6 is provided with between described outer wall 4 and elasticity inwall 5, the pipeline one end formed in adjutage elasticity inwall 5 is communicated with inlet exhaust gas pipe 3, the other end is communicated with volute 1, form between outer wall and elasticity inwall and regulate chamber 7, be communicated with described adjustment chamber 7 and be provided with piston cavity 8, piston 9 is provided with in piston cavity 8, be filled with liquid between in described adjustment chamber 7 and adjustment chamber 7 to piston 9, be connected with piston two-way motion driving mechanism with described piston.
In the present embodiment, described spring 6 is extension spring, is advisable, for ensureing the even reset of elasticity inwall to be evenly arranged around inwall circumference.
Described piston two-way motion driving mechanism comprises Double-directional rotary motor 11 and control circuit, tooth transmission system 10, and described tooth transmission system 10 is in transmission connection the output shaft of Double-directional rotary motor and piston rod.For controlling the positive and negative rotation of motor, in the present embodiment, being provided with two relays 12,13, controlling motor respectively and rotating forward and motor reversal.
Design concept of the present utility model is, boost pressure is relevant to the size of caliber, therefore, by regulating the size of caliber, can adjust boost pressure, and comparatively realizes controlling by detecting feedback ratio.
Caliber b and boost pressure P
tphysical relationship derive as follows:
Circulation area
In formula,
B: mouth of pipe footpath; R
t: gas constant before turbine; K
t: gas isentropic exponent before turbine; G
t: extraction flow; P
t: pressure before whirlpool; T
t: turbine inlet temperature; P
t0: pressure after turbine.
Pressure P before whirlpool
twith air mass flow G
s, boost pressure P
srelation, obtained by the power-balance of turbine and pressurized machine, as shown in the formula:
In formula,
T
t: turbine inlet temperature; P
t: pressure before whirlpool; R
t: gas constant before turbine; K
t: gas isentropic exponent before turbine; K: air isentropic exponent; R: atmospheric gas constant; Pa, Ta: atmospheric pressure and temperature; G
s: air mass flow; P
s: boost pressure; P
t0: pressure after turbine; n
tb: turbine total efficiency; G
t: extraction flow.
Thus:
Wherein,
Finally be scaled b and enter cylinder air flow G
swith boost pressure P
sbetween relation, and the pass of air mass flow and boost pressure is:
Boost pressure:
,
In formula: P
me: mean effective pressure; g
e: specific fuel consumption;
: coefficient of scavenging; n
v: qi of chong channel ascending adversely coefficient; T
s: in cold rear temperature; α: excess air coefficient.
Air mass flow:
,
In formula: P
e: power; L: 1KG gasoline required air quantity in theory; g
e: specific fuel consumption; α: excess air coefficient;
: coefficient of scavenging.
:
.
Thus, circulation area:
，
。
Based on above-mentioned relation, by changing caliber, boost pressure can be changed.
Therefore, shown in accompanying drawing 3, the controlling method of the waste gas utilization device for turbo charge system of the present embodiment, comprises the following steps:
(1) engine operating condition parameter is obtained, calculation requirement boost pressure theoretical value;
(2) current booster pressure is detected;
(3) if require that boost pressure theoretical value equals current booster pressure, step (1) is returned; If require that boost pressure theoretical value is greater than current booster pressure, the action of piston two-way motion driving mechanism control piston, makes the liquid in adjustment chamber flow to piston cavity, increases adjutage inwall caliber; If require that boost pressure theoretical value is less than current booster pressure, the action of piston two-way motion driving mechanism control piston, makes the liquid in piston cavity flow to adjustment chamber, reduces adjutage inwall caliber;
(4) step (2) and (3) is repeated.
Particularly, when adopting Double-directional rotary motor cooperating teeth transmission system,
If require that boost pressure theoretical value is greater than current booster pressure, require large air inflow, control relay 12 closes, relay 13 often leaves, motor rotates forward, and is moved to the left by tooth transmission, and the size of b becomes large, air inflow increases instantaneously, waste gas utilization rate increases, and turbine efficiency improves, when high stabilization of speed, Comparatively speaking air inflow increases, and utilizes tail gas utilization efficiency fully.If require that boost pressure theoretical value is less than current booster pressure, when namely deceleration drops to low speed, control relay 12 often leaves, and relay 13 closes, and motor reversal, makes b reduce, and now can utilize the kinetic energy of tail gas, and turbine is responded in advance.
Claims (4)
1. the waste gas utilization device for turbo charge system, comprise volute, turbine, inlet exhaust gas pipe, it is characterized in that: be provided with exhaust flow controlling mechanism, described exhaust flow controlling mechanism comprises the adjutage with outer wall and elasticity inwall, the pipeline one end formed in adjutage elasticity inwall is communicated with inlet exhaust gas pipe, the other end is communicated with volute, form between outer wall and elasticity inwall and regulate chamber, be communicated with described adjustment chamber and be provided with piston cavity, piston is provided with in piston cavity, liquid is filled with in described adjustment chamber and between adjustment chamber to piston, piston two-way motion driving mechanism is connected with described piston.
2. the waste gas utilization device for turbo charge system according to claim 1, is characterized in that: be provided with spring between described outer wall and elasticity inwall.
3. the waste gas utilization device for turbo charge system according to claim 2, is characterized in that: described spring is extension spring.
4. the waste gas utilization device for turbo charge system according to claim 1, it is characterized in that: described piston two-way motion driving mechanism comprises Double-directional rotary electric motor and controller circuit, tooth transmission system, described tooth transmission system is in transmission connection the output shaft of Double-directional rotary motor and piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420511064.3U CN204041220U (en) | 2014-03-25 | 2014-09-05 | For the waste gas utilization device of turbo charge system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112617.2 | 2014-03-25 | ||
| CN201410112617.2A CN103883389A (en) | 2014-03-25 | 2014-03-25 | Tail gas utilization device for turbocharging system and control method of tail gas utilization device |
| CN201420511064.3U CN204041220U (en) | 2014-03-25 | 2014-09-05 | For the waste gas utilization device of turbo charge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041220U true CN204041220U (en) | 2014-12-24 |
Family
ID=50952477
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410112617.2A Pending CN103883389A (en) | 2014-03-25 | 2014-03-25 | Tail gas utilization device for turbocharging system and control method of tail gas utilization device |
| CN201420511064.3U Expired - Fee Related CN204041220U (en) | 2014-03-25 | 2014-09-05 | For the waste gas utilization device of turbo charge system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410112617.2A Pending CN103883389A (en) | 2014-03-25 | 2014-03-25 | Tail gas utilization device for turbocharging system and control method of tail gas utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103883389A (en) |
-
2014
- 2014-03-25 CN CN201410112617.2A patent/CN103883389A/en active Pending
- 2014-09-05 CN CN201420511064.3U patent/CN204041220U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103883389A (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201810589U (en) | Tubular pump with movable guide vane at impeller entrance | |
| RU2016144043A (en) | Method (options) and system for boost control | |
| CN103603747A (en) | Intake pressure balancing adjuster for supercharged and intercooled gas engine | |
| CN205025709U (en) | Pressure boost centrifugal pump | |
| CN103089409A (en) | Variable air exhaust through flow area air inlet pressure control type adjusting device for turbocharged engine | |
| CN102686855A (en) | Control strategy for an engine | |
| CN102748123B (en) | Anti-surge control device of turbocharger of aviation piston engine | |
| CN102367793A (en) | Efficient method and pump valve integrated energy-saving device for water pump | |
| CN102182544B (en) | Air inlet regulating device of flow-passage-changeable turbine | |
| CN203717114U (en) | Waste gas bypass type pressurizer high-precision control system | |
| CN204041220U (en) | For the waste gas utilization device of turbo charge system | |
| CN104879199B (en) | A kind of self-con-tained unit for realizing motor-vehicle tail-gas Multi-class propagation | |
| CN202209314U (en) | Efficient energy-saving single-stage high-speed centrifugal blower | |
| CN103661922B (en) | A kind of servo control mechanism electricity consumption combustion gas mixing power set | |
| CN102269045B (en) | Screw rod type combined pressurization system and control method thereof | |
| CN104235012A (en) | Multi-joint variable-flow aerial gear oil pump | |
| CN205779775U (en) | A kind of series-parallel operating mode controllable centrifugal pump assembly | |
| CN204610293U (en) | A kind of turbo machine | |
| CN107559131A (en) | A kind of wave energy generating set for hanging pendulum-type and being coupled with oscillaton water column type | |
| CN201982169U (en) | Air intake adjusting device of variable channel turbine | |
| CN207297520U (en) | A kind of integrated hydraulic speed changer based on energy regenerating | |
| CN203584482U (en) | Variable-flow segmented volute | |
| CN108980130A (en) | Differential regulating valuve unit, hydraulic control system and engineering machinery | |
| CN207701492U (en) | Electro-hydraulic proportional valve hydraulic power unit | |
| CN203847232U (en) | Tableland radiating closed type hydraulic driving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20200905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |