CN108412642A - Petrol engine with exhaust gas turbocharge auxiliary device and grass trimmer - Google Patents
Petrol engine with exhaust gas turbocharge auxiliary device and grass trimmer Download PDFInfo
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- CN108412642A CN108412642A CN201810222241.9A CN201810222241A CN108412642A CN 108412642 A CN108412642 A CN 108412642A CN 201810222241 A CN201810222241 A CN 201810222241A CN 108412642 A CN108412642 A CN 108412642A
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Abstract
The present invention provides a kind of petrol engine and grass trimmer with exhaust gas turbocharge auxiliary device.Petrol engine includes exhaust gas turbocharge auxiliary device, the device includes the discharge gas derived pipe being connected to exhaust manifold sealing and the waste gas ingress pipe being connected to the air inlet seal of tube, it is sealedly connected with volume control device between discharge gas derived pipe and waste gas ingress pipe abutting end, the volume control device by side accelerator control device control, when accelerator control device loosens, volume control device be suitable for by appropriate exhaust gas from discharge gas derived pipe import waste gas ingress pipe；When loosening accelerator control device, engine exhaust is imported directly by pipeline, volume control device to air inlet pipe, volume control device is according to the rotational speed regulation exhaust gas import volume of accelerator control device, so that the power of engine is weakened immediately with loosening for accelerator control device, reduces turbine time lag and engine will not stop working.Grass trimmer is Straddle riding type grass trimmer.
Description
Technical field
The present invention relates to a kind of grass trimmers can reduce in particular by the grass trimmer of exhaust gas turbocharge auxiliary device
Turbine time-lag effect.
Background technology
Currently, the environmental consciousness with people enhances, fuel-economizing and the strong engine of power is becoming increasingly popular, exhaust gas turbine
Engine with supercharger becomes the main equipment on petrol engine now.However exhaust gas exhaust-driven turbo-charger exhaust-gas turbo charger has time-lag effect,
Since the pressurization of exhaust-driven turbo-charger exhaust-gas turbo charger is mainly generated by the air inlet turbine in air intake duct, and air inlet turbine is by position
Exhaust driven gas turbine in exhaust duct drives, and the rotating speed of exhaust driven gas turbine is determined by engine back pressure, when driver presses suddenly
When dynamic throttle accelerates, since engine back pressure will not increase immediately at this time, the secondary speed in exhaust-driven turbo-charger exhaust-gas turbo charger with
Not upper step and prevent the pressure of supercharging from increasing immediately, the power of engine cannot with the action of accelerator control device line
Property increase, real process is after driver presses accelerator control device suddenly, as more air and fuel oil enter gas
Stronger pressure at expulsion is generated after in-cylinder combustion, this pressure at expulsion drives exhaust driven gas turbine to accelerate, and fixes and connects due to inlet and outlet turbine
It connects, air inlet turbine sync plus white, to make the boost pressure of air inlet increase, this process generates longer time delay, generally
It is 5-8 seconds；On the other hand, when driver loosens suddenly（Including being totally released）When throttle, due to inlet and outlet turbine rotating speed not
Can immediately it slow down with loosening for accelerator control device, the admission pressure and air inflow in inlet manifold will not decline immediately, make
Obtaining the power of engine will not immediately weaken with the loosening up of accelerator control device.
Invention content
Head technical problems to be solved of the invention are to provide a kind of grass trimmer, use exhaust gas turbocharge auxiliary device,
So that the power of engine is weakened immediately with loosening for accelerator control device, reduces turbine time lag and engine will not stop working.
In order to solve the above technical problem, the present invention provides a kind of grass trimmer, grass trimmer is riding using petrol engine
Riding mower, petrol engine include exhaust gas turbocharge auxiliary device comprising：It is close with the exhaust manifold of petrol engine
Seal the discharge gas derived pipe of connection, and the waste gas ingress pipe that be connected to the air inlet seal of tube of petrol engine, discharge gas derived pipe with give up
It is sealedly connected with volume control device between gas ingress pipe abutting end, accelerator control device control of the volume control device by side
System, when accelerator control device is relaxed by being stepped on state, volume control device is suitable for appropriate exhaust gas from discharge gas derived pipe
Import waste gas ingress pipe.
Volume control device includes air valve, and the side of air valve is equipped with the qcr controller for controlling its aperture, qcr controller
Loosened rotating speed control by accelerator control device.
Air valve includes the spool being snug fit in valve casing, and the middle and upper part of valve casing is equipped with the inlet, outlet of lateral symmetry distribution
Mouthful, valve core upper sleeve is equipped with the sealing ring of the inlet, outlet for sealing air valve, the top of spool and the inner wall top of valve casing
Between be connected with control spring, control spring is suitable for pushing out spool, and qcr controller is suitable for driving the movement of spool；It is described
Inlet, outlet is connected with the gas introduction tube with gas eduction tube abutting end respectively.
Qcr controller includes small runner, is driven and is connected by one-way clutch one between small runner and adjacent great wheel
It connects, great wheel lateral wall is equipped with multiple radial slide bars, is arranged with sliding sleeve respectively on each slide bar and passes through connection between the two
Spring connects, and the outer end of each sliding sleeve is fixedly connected with secter pat, and each secter pat central symmetry is distributed and constitutes a cylinder
Face；The Cylindrical Surfaces Contact that the outer end of spool is constituted with each secter pat always coordinates；The master of rotation coaxial with accelerator control device
Driving wheel is sequentially connected with small runner.
With the connecting pin of air inlet pipe tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger on waste gas ingress pipe.
Exhaust gas turbocharge auxiliary device further includes pressure fan, and the air outlet of pressure fan passes through ajutage and the air inlet seal of tube
Connection, pressure fan controlled by accelerator control device, when accelerator control device presses, pressure fan be suitable for being sent into ajutage it is suitable
Measure outside air.
Pressure fan includes impeller, and impeller is sequentially connected with adjacent driven wheel by one-way clutch two, and driven wheel stretches out
One end of pressure fan air inlet is connect with capstan drive, and check valve is equipped at the air outlet of pressure fan, on ajutage with air inlet
The connecting pin of pipe is tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger.
The present invention also provides a kind of working methods of above-mentioned exhaust gas turbocharge auxiliary device, namely reduce turbine time lag
Method, including：When loosening accelerator control device, engine exhaust is imported directly by pipeline, volume control device to air inlet
In pipe, volume control device is according to the rotational speed regulation exhaust gas import volume of accelerator control device；When pressing accelerator control device, air-supply
Appropriate outside air is sent into air inlet pipe by machine according to the rotating speed of accelerator control device.
Compared with the existing technology, what the present invention had has the technical effect that：
（1）When loosening accelerator control device, the appropriate exhaust gas in exhaust manifold is filled by discharge gas derived pipe, flow control
Set, waste gas ingress pipe is introduced directly into air inlet pipe, to reduce immediately the output power of engine, reduce turbine time lag, prevent simultaneously
Only engine misses.
（2）Qcr controller can loosening rotating speed and control the aperture of air valve according to accelerator control device, to adjusting
The import volume of exhaust gas can control the amplitude of engine power decline according to the various release speeds of accelerator control device.
（3）In the spool sliding process of air valve, the registration of sealing ring and inlet, outlet opening come adjusting air valve is utilized
Degree, control spring can be such that spool remains with qcr controller to be engaged, while qcr controller can pass through control
The mobile range of spool realizes that exhaust gas flow continuously adjusts in setting range.
（4）Qcr controller realizes centrifugal movement by slide bar, sliding sleeve and connecting spring and generates centrifugal force, and passes through
Secter pat drives the movement of spool；When loosening to realize accelerator control device using one-way clutch one simultaneously, accelerator control
Power transmission function between device and secter pat is realized the speed control valve core amount of movement according to accelerator control device and then is being set
Determine to continuously adjust the function of exhaust gas flow in range.
（5）The connecting pin of waste gas ingress pipe and air inlet pipe tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger, can make importing air inlet
Off-gas flows in pipe are consistent with the normal airflow direction in air inlet pipe, prevent from interfering with each other and cause air turbulence and form gas
Resistance.
（6）When pressing accelerator control device, by accelerator control device control pressure fan by ajutage to air inlet pipe
It is interior to be sent into appropriate outside air, to improve air inflow, the output power of engine is promoted immediately, reduces turbine time lag.
（7）When pressing to realize accelerator control device using one-way clutch two, between accelerator control device and impeller
Power transmission function, pressing rotating speed and control the air output of impeller using accelerator control device.
（8）Air-flow when check valve can prevent pressure fan from not working, in air inlet pipe inversely enters pressure fan along ajutage
It is interior.
（9）The connecting pin of ajutage and air inlet pipe towards exhaust-driven turbo-charger exhaust-gas turbo charger, can tangentially make in importing air inlet pipe
Outside air it is consistent with the normal airflow direction in air inlet pipe, prevent from interfering with each other and cause air turbulence and form vapour lock.
Description of the drawings
In order to clearly illustrate the innovative principle of the present invention and its technical advantage compared to the existing product, below by way of attached
Figure illustrates possible embodiment by the non-limiting examples of the application principle.In figure：
Fig. 1 is the structure chart of the exhaust gas turbocharge auxiliary device of the present invention；
Fig. 2 is the air valve of the present invention and the schematic enlarged-scale view of qcr controller；
Fig. 3 is the partial enlarged view of the pressure fan of the present invention；
Fig. 4 is the structure chart of the one-way clutch one of the present invention；
Fig. 5 is the structure chart of the one-way clutch two of the present invention.
Specific implementation mode
The corresponding component of each reference numeral is respectively in attached drawing 1-5：Air inlet pipe 1, exhaust-driven turbo-charger exhaust-gas turbo charger 2, inlet chamber 3,
Discharge chamber 4, air inlet turbine 5, exhaust driven gas turbine 6, partition board 7, exhaust pipe 8, exhaust manifold 9, inlet manifold 10, cylinder block 11, exhaust gas
Delivery line 12, air valve 13, waste gas ingress pipe 14, qcr controller 15, belt 1, accelerator control device 17（I.e.：It can answer automatically
The accelerator control spanner of position）, driving wheel 18, belt 2 19, pressure fan 20, check valve 21, ajutage 22；Valve casing 130, blow vent
131, control spring 132, spool 133, sealing ring 134, limited block 135, locating piece 136；Shell 150, secter pat 151, connection
Spring 152, sliding sleeve 153, slide bar 154, great wheel 155, small runner 156；Casing 200, blade 201, air inlet 202, driven wheel
203, impeller 204, one-way clutch 1, one-way clutch 2 205.
Grass trimmer is the Straddle riding type grass trimmer using petrol engine, and petrol engine includes exhaust gas turbocharge auxiliary dress
It sets, exhaust-driven turbo-charger exhaust-gas turbo charger 2 includes that the inlet chamber 3 separated by partition board 7 and discharge chamber 4, air inlet turbine 5 are set in inlet chamber 3, row
Air turbine 6 is set in discharge chamber 4, and inlet and outlet turbine is fixedly connected by the shaft being arranged in partition board 7, the import of inlet chamber 3
Equipped with air inlet pipe 1, the outlet of discharge chamber 4 is equipped with exhaust pipe 8, and the outlet of inlet chamber 3 passes through inlet manifold 10 and petrol engine
The sealing connection of cylinder block 11, the entrance of discharge chamber 4 sealed by the cylinder block 11 of exhaust manifold 9 and petrol engine and is connected to,
One end of discharge gas derived pipe 12 is connected to the sealing of exhaust manifold 9, and the other end is connected to the sealing of the air inlet of air valve 13, and exhaust gas is led
The one end for entering pipe 14 is connected to the gas outlet seal of air valve 13, and the other end is connected to being sealed at neighbouring inlet chamber in air inlet pipe 1
And 14 end of waste gas ingress pipe of connectivity part is tangentially towards inlet chamber；The air outlet of pressure fan 20 passes through ajutage 22 and air inlet
Far from 22 end of ajutage of sealing connection and the connectivity part at inlet chamber tangentially towards inlet chamber on pipe 1.
Driving indoor accelerator control device 17 can rotate around its shaft, and driving wheel 18 is fixed on accelerator control device 17
The end of neighbouring shaft simultaneously rotates around the axis with accelerator control device 17 together.
Air valve 13 includes valve casing 130, and the air inlet and outlet of lateral symmetry distribution are respectively equipped on the two side of valve casing 130
Mouthful, spool 133 is snug fit in valve casing 130, and the top of spool 133 is arranged with the sealing for sealing air inlet and gas outlet
Circle 134 is connected between the top and the top inner wall of valve casing 130 of spool 133 by controlling spring 132, outside the middle part of spool 133
Side wall is equipped with limited block 135, and cooperation, valve casing are slidingly sealed between the lateral wall and the inner wall of valve casing 130 of the limited block 135
130 lower inner wall is equipped with is equipped with outer gas in balance with 135 matched locating piece 136 of limited block, the roof of valve casing 130
The blow vent 131 of pressure, when original state spool 133 in the case where control spring 132, limited block 135 and locating piece 136 act on, pass through
Sealing ring 134 closes inlet, outlet；The inlet, outlet is adjacent with gas eduction tube 14 with the gas introduction tube 12 respectively
End is connected.
The side of air valve 13 is equipped with qcr controller 15, and qcr controller 15 includes circular housing 150, is turned in shell 150
Dynamic to be combined with great wheel 155, small runner 156 is sequentially connected with adjacent great wheel 155 by one-way clutch 1, wherein
Small runner 156 is fixedly connected with the inner ring of one-way clutch 1, and great wheel 155 and the outer ring of one-way clutch 1 are fixed
It connects, is fixed with three slide bars 154 radially on the lateral wall of great wheel 155, sliding sleeve is all arranged on each slide bar 154
153, the outer end of each sliding sleeve 153 has been respectively fixedly connected with a secter pat 151, each secter pat（151）Central symmetry is distributed, each slide bar
By 152 elastic connection of connecting spring between 154 outer end and the outer end of sliding sleeve 153, there is setting between adjacent secter pat 151
Gap.
The lower end of spool 133 is arc-shaped and is stretched into shell 150 by the through-hole on shell 150, and the lower end of spool 133 is begun
The whole cylindrical surface outer wall constituted with each secter pat 151 is engaged；One end of the stretching shell 150 of the small runner 156 passes through
Belt 1 is sequentially connected with driving wheel 18.
Air inlet, gas outlet and the control spring 132 of air valve 13 are after setting, even if secter pat 151 drives spool 133
It is moved to extreme position, engine misses are still insufficient to allow by the exhaust gas flow of air valve 13.
The pressure fan 20 includes casing 200, and casing 200 is equipped with round air inlet 202, is rotatably assorted in casing 200
It includes multiple blades 201 to have impeller 204, impeller 204, passes through one-way clutch two between driven wheel 203 and adjacent impeller 204
205 are sequentially connected, and wherein driven wheel 203 is fixedly connected with the inner ring of one-way clutch 2 205, impeller 204 and one-way clutch
2 205 outer ring is fixedly connected, and the operative orientation and one-way clutch 1 of one-way clutch 2 205 are on the contrary, driven wheel 203
Outer end stretch out air inlet 202 and be sequentially connected by belt 2 19 and driving wheel 18, the diameter of driven wheel 203 is less than driving wheel
18, to increase the rotating speed of driven wheel 203, the air outlet on casing 200 is equipped with check valve 21 with 22 connecting place of ajutage, to prevent
Only air-flow inversely flows into pressure fan 20 from air inlet pipe 1 along ajutage 22.
The course of work of exhaust gas turbocharge auxiliary device includes：
（1）When driver presses accelerator control device 17 rapidly, driving wheel 18 rotates counterclockwise, and driving wheel 18 drives driven wheel
203 rotations counterclockwise, driven wheel 203 drive impeller 204 to rotate counterclockwise by one-way clutch 2 205, and impeller 204 drives leaf
Piece 201 rotates, and air enters ajutage 22 after being inhaled into from air inlet 202, and air enters through ajutage 22 in air inlet pipe 1, from
And increase air inflow immediately after pressing accelerator control device 17, and to improve the power of engine, the wind be sent by pressure fan 20
Measure to accelerator control device 17 to press speed directly proportional；On the other hand, when pressing accelerator control device 17, due to small runner
156 rotate counterclockwise, one 157 not power transmission of one-way clutch, thus air valve 13 closes its inlet, outlet.
（2）When driver loosens accelerator control device 17 rapidly, driving wheel 18 rotates clockwise, and driving wheel 18 drives small
Runner 156 rotates clockwise, and small runner 156 drives great wheel 155 to rotate clockwise by one-way clutch 1, each sector
Block 151 is radially slided relative to great wheel 155, and secter pat 151 drives spool 133 to overcome control 132 upward sliding of spring, to
Sealing ring 134 is set to be removed from inlet, outlet, clockwise speed when loosening accelerator control device 17 determines inlet, outlet
Aperture makes the power of engine weaken rapidly and adjusts dynamic to which control flows into the exhausted air quantity in air inlet pipe 1 from exhaust manifold 9
The fall of power；On the other hand, when loosening accelerator control device 17, since driven wheel 203 rotates clockwise, one-way clutch
2 205 not power transmissions, thus pressure fan 20 does not work.
（3）When holding or being totally released accelerator control device 17, since driving wheel 18 does not turn, air valve 13 is in closed state
And pressure fan 20 does not work.The petrol engine is multi-cylinder petrol engine or single cylinder petrol engine.
As modifiable embodiment, the petrol engine can be changed to diesel engine.It can be multi-cylinder bavin
Oil turbine or single cylinder diesel engine.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
The obvious changes or variations that bright spirit is extended out are still in the protection scope of this invention.
Claims (3)
1. a kind of working method of grass trimmer, grass trimmer is the Straddle riding type grass trimmer using petrol engine, it is characterised in that vapour
The exhaust gas turbocharge auxiliary device of oil turbine includes：With the exhaust manifold of petrol engine（9）The exhaust gas of sealing connection is led
Outlet pipe（12）And the air inlet pipe with petrol engine（1）Seal the waste gas ingress pipe of connection（14）, discharge gas derived pipe（12）With it is useless
Gas ingress pipe（14）Volume control device is sealedly connected between abutting end, which is filled by the accelerator control of side
It sets（17）Control, works as accelerator control device（17）By stepped on state be relaxed when, volume control device is suitable for appropriate exhaust gas
From discharge gas derived pipe（12）Import waste gas ingress pipe（14）；
Volume control device includes air valve（13）, air valve（13）Side be equipped with control its aperture qcr controller（15）, from
Heart controller（15）By accelerator control device（17）Loosen rotating speed control；
Further include：Pressure fan（20）；
The working method of the grass trimmer, including：Pressure fan（20）Air outlet pass through ajutage（22）With air inlet pipe（1）Sealing
Connection, pressure fan（20）By accelerator control device（17）Control, works as accelerator control device（17）When pressing, pressure fan（20）It is suitable for
To ajutage（22）It is interior to be sent into appropriate outside air；
When loosening accelerator control device, engine exhaust is imported directly by pipeline, volume control device to air inlet pipe, stream
Amount control device is according to the rotational speed regulation exhaust gas import volume of accelerator control device；When pressing accelerator control device, pressure fan according to
Appropriate outside air is sent into air inlet pipe by the rotating speed of accelerator control device.
2. working method according to claim 1, it is characterised in that：It is cut with the connecting pin of air inlet pipe edge on waste gas ingress pipe
To towards exhaust-driven turbo-charger exhaust-gas turbo charger.
3. a kind of petrol engine, it is characterised in that：Its exhaust gas turbocharge auxiliary device used includes：With petrol engine
Exhaust manifold（9）Seal the discharge gas derived pipe of connection（12）And the air inlet pipe with petrol engine（1）Seal the exhaust gas of connection
Ingress pipe（14）, discharge gas derived pipe（12）With waste gas ingress pipe（14）Volume control device is sealedly connected between abutting end, it should
Accelerator control device of the volume control device by side（17）Control, works as accelerator control device（17）It is relaxed by being stepped on state
When, volume control device is suitable for appropriate exhaust gas from discharge gas derived pipe（12）Import waste gas ingress pipe（14）；
Volume control device includes air valve（13）, air valve（13）Side be equipped with control its aperture qcr controller（15）, from
Heart controller（15）By accelerator control device（17）Loosen rotating speed control；
Further include：Pressure fan（20）；Pressure fan（20）Air outlet pass through ajutage（22）With air inlet pipe（1）Sealing connection, send
Wind turbine（20）By accelerator control device（17）Control, works as accelerator control device（17）When pressing, pressure fan（20）Suitable for air-supply
Pipe（22）It is interior to be sent into appropriate outside air；
When loosening accelerator control device, engine exhaust is imported directly by pipeline, volume control device to air inlet pipe, stream
Amount control device is according to the rotational speed regulation exhaust gas import volume of accelerator control device；When pressing accelerator control device, pressure fan according to
Appropriate outside air is sent into air inlet pipe by the rotating speed of accelerator control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222241.9A CN108412642A (en) | 2015-07-24 | 2015-07-24 | Petrol engine with exhaust gas turbocharge auxiliary device and grass trimmer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222241.9A CN108412642A (en) | 2015-07-24 | 2015-07-24 | Petrol engine with exhaust gas turbocharge auxiliary device and grass trimmer |
| CN201510443699.3A CN106358604A (en) | 2015-07-24 | 2015-07-24 | Mower for preventing engine from shutdown |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510443699.3A Division CN106358604A (en) | 2015-07-24 | 2015-07-24 | Mower for preventing engine from shutdown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412642A true CN108412642A (en) | 2018-08-17 |
Family
ID=57881016
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510443699.3A Pending CN106358604A (en) | 2015-07-24 | 2015-07-24 | Mower for preventing engine from shutdown |
| CN201810222237.2A Pending CN108443032A (en) | 2015-07-24 | 2015-07-24 | Using the grass trimmer of exhaust gas turbocharge auxiliary device and petrol engine |
| CN201810222241.9A Pending CN108412642A (en) | 2015-07-24 | 2015-07-24 | Petrol engine with exhaust gas turbocharge auxiliary device and grass trimmer |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510443699.3A Pending CN106358604A (en) | 2015-07-24 | 2015-07-24 | Mower for preventing engine from shutdown |
| CN201810222237.2A Pending CN108443032A (en) | 2015-07-24 | 2015-07-24 | Using the grass trimmer of exhaust gas turbocharge auxiliary device and petrol engine |
Country Status (1)
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| CN (3) | CN106358604A (en) |
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- 2015-07-24 CN CN201510443699.3A patent/CN106358604A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106358604A (en) | 2017-02-01 |
| CN108443032A (en) | 2018-08-24 |
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Application publication date: 20180817 |
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