CN106703975A - Mower - Google Patents
Mower Download PDFInfo
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- CN106703975A CN106703975A CN201510442406.XA CN201510442406A CN106703975A CN 106703975 A CN106703975 A CN 106703975A CN 201510442406 A CN201510442406 A CN 201510442406A CN 106703975 A CN106703975 A CN 106703975A
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- Prior art keywords
- control device
- waste gas
- pipe
- exhaust
- air
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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 relates to a mower. The mower is a riding mower adopting a gasoline engine. The gasoline engine comprises a waste gas turbine pressurizing auxiliary device. The waste gas turbine pressurizing auxiliary device comprises a waste gas guide-out pipe in sealing communication with an exhaust manifold, and a waste gas guide-in pipe in sealing communication with a gas inlet pipe. A flow control device is connected between the adjacent ends of the waste gas guide-out pipe and the waste gas guide-in pipe in a sealing manner. The flow control device is controlled by an accelerator control device on one side. When the accelerator control device is loosened, the flow control device is suitable for guiding a proper amount of waste gas into the waste gas guide-in pipe from the waste gas guide-out pipe. When the accelerator control device is loosened, the engine waste gas is directly guided into the gas inlet pipe through a pipeline and the flow control device, and the flow control device adjusts the waste gas guide-in amount according to the rotation speed of the accelerator control device. Power of the engine is immediately weakened along with loosening of the accelerator control device, turbine time lag is reduced, and the engine cannot shut down.
Description
Technical field
The present invention relates to a kind of hay mover, in particular by the hay mover of exhaust gas turbocharge servicing unit, turbine time-lag effect can be reduced.
Background technology
At present, with the environmental consciousness enhancing of people, fuel-economizing, the strong engine of power is becoming increasingly popular, and exhaust gas turbocharge engine turns into the main equipment on petrol engine now.But waste gas exhaust-driven turbo-charger exhaust-gas turbo charger has time-lag effect,Because the pressurization of exhaust-driven turbo-charger exhaust-gas turbo charger is mainly produced by the air inlet turbine in air intake duct,And air inlet turbine is driven by the exhaust driven gas turbine in exhaust duct,The rotating speed of exhaust driven gas turbine is determined by engine back pressure,When driver presses suddenly throttle to be accelerated,Because now engine back pressure will not increase immediately,Secondary speed in exhaust-driven turbo-charger exhaust-gas turbo charger does not catch up with step and prevents the pressure of supercharging from increasing immediately,The power of engine can not be linearly increasing with the action of accelerator control device,Its real process is after driver presses accelerator control device suddenly,Stronger pressure at expulsion is produced after entering gas in-cylinder combustion with more air and fuel oil,This pressure at expulsion drives exhaust driven gas turbine to accelerate,Due to entering,Exhaust driven gas turbine is fixedly connected,Air inlet turbine sync plus white,So that the boost pressure of air inlet is raised,This process produces longer time to postpone,Generally 5-8 seconds；On the other hand, when driver loosens suddenly（Including being totally released）During throttle, because the rotating speed of inlet and outlet turbine will not immediately slow down with loosening for accelerator control device, admission pressure and air inflow in inlet manifold will not decline immediately so that the power of engine will not immediately weaken with the loosening up of accelerator control device.
The content of the invention
The primary technical problem for solving of the invention is to provide a kind of hay mover, and it uses exhaust gas turbocharge servicing unit, the power of engine is weakened immediately with loosening for accelerator control device, and reducing turbine time lag and engine will not stop working.
In order to solve the above-mentioned technical problem, the present invention provides a kind of hay mover, and hay mover is that, using the Straddle riding type hay mover of petrol engine, petrol engine includes exhaust gas turbocharge servicing unit, and it includes：The discharge gas derived pipe connected with the exhaust manifold sealing of petrol engine, and the waste gas ingress pipe connected with the air inlet seal of tube of petrol engine, volume control device is sealedly connected between discharge gas derived pipe and waste gas ingress pipe abutting end, the volume control device is controlled by the accelerator control device of side, when accelerator control device is relaxed by being stepped on state, volume control device is suitable to for appropriate waste gas to import waste gas ingress pipe from discharge gas derived pipe.
Hay mover includes walking mechanism and the grass-mowing in the walking mechanism, and the petrol engine provides hay mover walking and the whole power mowed.
Volume control device includes air valve, and the side of air valve is provided with the qcr controller for controlling its aperture, and qcr controller is loosened rotating speed control by accelerator control device.
Air valve includes the valve element being snug fit in valve casing, the middle and upper part of valve casing is provided with the inlet, outlet of lateral symmetry distribution, valve core upper sleeve is provided with the sealing ring of the inlet, outlet for sealing air valve, control spring is connected between the top of valve element and the inwall top of valve casing, control spring is suitable to push out valve element, and qcr controller is suitable to drive the movement of valve element；The inlet, outlet is connected with the gas introduction tube with gas eduction tube abutting end respectively.
Qcr controller includes small runner, it is connected by one-way clutch one between small runner and adjacent great wheel, great wheel lateral wall is provided with the slide bar of multiple radial directions, sliding sleeve is arranged with each slide bar respectively and passes through connecting spring elastic connection between the two, the outer end of each sliding sleeve is fixedly connected with secter pat, and each secter pat Central Symmetry is distributed and constitutes a face of cylinder；The Cylindrical Surfaces Contact that the outer end of valve element is constituted with each secter pat all the time coordinates；The driving wheel of rotation coaxial with accelerator control device is connected with small runner.
With the connection end of air inlet pipe tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger on waste gas ingress pipe.
Exhaust gas turbocharge servicing unit also includes pressure fan, and the air outlet of pressure fan connected by ajutage with the air inlet seal of tube, and pressure fan is controlled by accelerator control device, and when accelerator control device is pressed, pressure fan is suitable to sending into appropriate outside air in ajutage.
Pressure fan includes impeller, impeller is connected with adjacent driven pulley by one-way clutch two, one end that driven pulley stretches out pressure fan air inlet is connected with capstan drive, and check valve is provided with the air outlet of pressure fan, with the connection end of air inlet pipe tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger on ajutage.
The present invention also provides a kind of method of work of above-mentioned exhaust gas turbocharge servicing unit, namely the method for reducing turbine time lag, including：When loosening accelerator control device, engine exhaust is imported directly to air inlet pipe by pipeline, volume control device, rotational speed regulation waste gas import volume of the volume control device according to accelerator control device；When pressing accelerator control device, pressure fan is sent into air inlet pipe appropriate outside air according to the rotating speed of accelerator control device.
Relative to prior art, what the present invention had has the technical effect that：
（1）When accelerator control device is loosened, the appropriate waste gas in exhaust manifold is introduced directly into air inlet pipe by discharge gas derived pipe, volume control device, waste gas ingress pipe, so as to reduce the output power of engine immediately, reduces turbine time lag, while preventing engine misses.
（2）Qcr controller can loosen rotating speed to control the aperture of air valve according to accelerator control device, so that the import volume of waste gas is adjusted, the amplitude that engine power can be controlled to decline according to the various release speeds of accelerator control device.
（3）In the valve element sliding process of air valve, using the registration of sealing ring and inlet, outlet come the aperture of adjusting air valve, control spring that valve element can be made to be remained with qcr controller to be engaged, while qcr controller can realize exhaust gas flow by controlling the mobile range of valve element being continuously adjusted in setting range.
（4）Qcr controller is realized centrifugal motion by slide bar, sliding sleeve and connecting spring and produces centrifugal force, and the movement of valve element is driven by secter pat；Realize loosening power transmission function during accelerator control device, between accelerator control device and secter pat using one-way clutch one simultaneously, realize the speed control valve core amount of movement according to accelerator control device and then the function of exhaust gas flow is continuously adjusted in setting range.
（5）The connection end of waste gas ingress pipe and air inlet pipe can make the off-gas flows in importing air inlet pipe consistent with the normal airflow direction in air inlet pipe tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger, prevent from interfering and cause air turbulence and form vapour lock.
（6）When accelerator control device is pressed, the pressure fan controlled by accelerator control device passes through ajutage to appropriate outside air is sent into air inlet pipe, so as to improve air inflow, the output power of engine is lifted immediately, reduces turbine time lag.
（7）Realize pressing power transmission function during accelerator control device, between accelerator control device and impeller using one-way clutch two, press rotating speed to 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 in pressure fan along ajutage.
（9）The connection end of ajutage and air inlet pipe can make the outside air in importing air inlet pipe consistent with the normal airflow direction in air inlet pipe tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger, prevent from interfering and cause air turbulence and form vapour lock.
Brief description of the drawings
For clear explanation innovative principle of the invention and its technical advantage compared to existing product, possible embodiment is illustrated by the non-limiting examples of the application principle below by way of accompanying drawing.In figure：
Fig. 1 is the structure chart of exhaust gas turbocharge servicing unit of the invention；
Fig. 2 is the schematic enlarged-scale view of air valve of the invention and qcr controller；
Fig. 3 is the partial enlarged drawing of pressure fan of the invention；
Fig. 4 is the structure chart of one-way clutch of the invention；
Fig. 5 is the structure chart of one-way clutch of the invention two.
Specific embodiment
The corresponding part of each reference is respectively in accompanying 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, dividing plate 7, blast pipe 8, exhaust manifold 9, inlet manifold 10, cylinder block 11, discharge gas derived pipe 12, air valve 13, waste gas ingress pipe 14, qcr controller 15, belt 1, accelerator control device 17（I.e.：Can automatically reset accelerator control spanner）, driving wheel 18, belt 2 19, pressure fan 20, check valve 21, ajutage 22；Valve casing 130, blow vent 131 controls spring 132, valve element 133, sealing ring 134, limited block 135, locating piece 136；Shell 150, secter pat 151, connecting spring 152, sliding sleeve 153, slide bar 154, great wheel 155, small runner 156；Casing 200, blade 201, air inlet 202, driven pulley 203, impeller 204, one-way clutch 1, one-way clutch 2 205.
Hay mover is using the Straddle riding type hay mover of petrol engine,Petrol engine includes exhaust gas turbocharge servicing unit,Exhaust-driven turbo-charger exhaust-gas turbo charger 2 includes the inlet chamber 3 and discharge chamber 4 that are separated by dividing plate 7,Air inlet turbine 5 is in inlet chamber 3,Exhaust driven gas turbine 6 is in discharge chamber 4,Enter,Exhaust driven gas turbine is fixedly connected by the rotating shaft being arranged in dividing plate 7,The import of inlet chamber 3 is provided with air inlet pipe 1,The outlet of discharge chamber 4 is provided with blast pipe 8,The outlet of inlet chamber 3 is sealed with the cylinder block 11 of petrol engine by inlet manifold 10 and connected,The entrance of discharge chamber 4 is sealed with the cylinder block 11 of petrol engine by exhaust manifold 9 and connected,One end of discharge gas derived pipe 12 connects with the sealing of exhaust manifold 9,Its other end is connected with the air inlet sealing of air valve 13,One end of waste gas ingress pipe 14 connects with the gas outlet seal of air valve 13,Its other end connected with sealing at neighbouring inlet chamber in air inlet pipe 1 and connectivity part the end of waste gas ingress pipe 14 tangentially towards inlet chamber；The air outlet of pressure fan 20 by ajutage 22 with air inlet pipe 1 away from inlet chamber seal connect and the connectivity part the end of ajutage 22 tangentially towards inlet chamber.
Accelerator control device 17 in driver's cabin can rotate around its rotating shaft, and driving wheel 18 is fixed on accelerator control device 17 adjacent to the end of rotating shaft and is rotated around the axis together with accelerator control device 17.
Air valve 13 includes valve casing 130,Air inlet and the gas outlet of lateral symmetry distribution are respectively equipped with the two side of valve casing 130,Valve element 133 is snug fit in valve casing 130,The top of valve element 133 is arranged with the sealing ring 134 for sealing air inlet and gas outlet,Connected by controlling spring 132 between the top of valve element 133 and the top inner wall of valve casing 130,The middle part lateral wall of valve element 133 is provided with limited block 135,Cooperation is slidingly sealed between the lateral wall of the limited block 135 and the inwall of valve casing 130,The lower inner wall of valve casing 130 is provided with the locating piece 136 being engaged with limited block 135,The roof of valve casing 130 is provided with the blow vent 131 of balance inner and outer air pressure,Valve element 133 is in control spring 132 during original state,Under limited block 135 and locating piece 136 are acted on,By sealing ring 134 close into,Gas outlet；The inlet, outlet is connected with the gas introduction tube 12 with the abutting end of gas eduction tube 14 respectively.
The side of air valve 13 is provided with qcr controller 15, qcr controller 15 includes circular housing 150, being rotatably assorted in shell 150 has great wheel 155, small runner 156 is connected with adjacent great wheel 155 by one-way clutch 1, its medium and small runner 156 is fixedly connected with the inner ring of one-way clutch 1, great wheel 155 is fixedly connected with the outer ring of one-way clutch 1, three slide bars 154 radially are fixed with the lateral wall of great wheel 155, sliding sleeve 153 is all arranged with each slide bar 154, 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, and by the elastic connection of connecting spring 152 between the outer end of each slide bar 154 and the outer end of sliding sleeve 153, has the gap of setting between adjacent secter pat 151.
The lower end of valve element 133 is curved and is stretched into shell 150 by the through hole on shell 150, and the face of cylinder wall contacts that the lower end of valve element 133 is constituted with each secter pat 151 all the time coordinate；One end for stretching out shell 150 of the small runner 156 is connected by belt 1 with driving wheel 18.
The air inlet of air valve 13, gas outlet and control spring 132 are by after setting, even if secter pat 151 drives valve element 133 to be moved to extreme position, engine misses being still insufficient to allow by the exhaust gas flow of air valve 13.
The pressure fan 20 includes casing 200,Casing 200 is provided with circular air inlet 202,Being rotatably assorted in casing 200 has impeller 204,Impeller 204 includes multiple blades 201,It is connected by one-way clutch 2 205 between driven pulley 203 and adjacent impeller 204,Wherein driven pulley 203 is fixedly connected with the inner ring of one-way clutch 2 205,Impeller 204 is fixedly connected with the outer ring of one-way clutch 2 205,The operative orientation of one-way clutch 2 205 is opposite with one-way clutch 1,The outer end of driven pulley 203 is stretched out air inlet 202 and is connected with driving wheel 18 by belt 2 19,The diameter of driven pulley 203 is less than driving wheel 18,So as to increase the rotating speed of driven pulley 203,Air outlet on casing 200 is provided with check valve 21 with the connecting place of ajutage 22,To prevent air-flow from inversely flowing into pressure fan 20 along ajutage 22 from air inlet pipe 1.
The course of work of exhaust gas turbocharge servicing unit includes：
（1）When driver presses accelerator control device 17 rapidly, driving wheel 18 is rotated counterclockwise, driving wheel 18 drives the rotate counterclockwise of driven pulley 203, driven pulley 203 drives the rotate counterclockwise of impeller 204 by one-way clutch 2 205, the driving blade 201 of impeller 204 rotates, air enters ajutage 22 after being inhaled into from air inlet 202, air enters in air inlet pipe 1 through ajutage 22, so as to increase air inflow immediately after pressing accelerator control device 17, so as to improve the power of engine, the air quantity sent into by pressure fan 20 is directly proportional to the speed that presses of accelerator control device 17；On the other hand, when pressing accelerator control device 17, due to the rotate counterclockwise of small runner 156, the not power transmission of one-way clutch 1, thus air valve 13 close its inlet, outlet.
（2）When driver loosens accelerator control device 17 rapidly, driving wheel 18 is rotated clockwise, driving wheel 18 drives small runner 156 to turn clockwise, small runner 156 drives great wheel 155 to turn clockwise by one-way clutch 1, each secter pat 151 is radially slided relative to great wheel 155, secter pat 151 drives valve element 133 to overcome the control upward sliding of spring 132, so that sealing ring 134 is from entering, removed at gas outlet, clockwise speed when loosening accelerator control device 17 determine into, the aperture of gas outlet, so as to control that the exhausted air quantity in air inlet pipe 1 is flowed into from exhaust manifold 9, make the rapid fall for weakening and adjusting power of power of engine；On the other hand, when loosening accelerator control device 17, because driven pulley 203 turns clockwise, the not power transmission of one-way clutch 2 205, thus pressure fan 20 do not work.
（3）When holding or being totally released accelerator control device 17, because driving wheel 18 does not turn, air valve 13 is in closed state and pressure fan 20 does not work.The petrol engine, is many cylinder gasoline engines, or single cylinder petrol engine.
Used as modifiable implementation method, the petrol engine can be replaced by Diesel engine.Can be multi-cylinder diesel engine, or single cylinder diesel engine.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.There is no need and unable to be exhaustive to all of implementation method.And among these belong to obvious change that spirit of the invention extends out or change still in protection scope of the present invention.
Claims (7)
1. a kind of hay mover, hay mover is that, using the Straddle riding type hay mover of petrol engine, petrol engine includes exhaust gas turbocharge servicing unit, it is characterised in that including：With the exhaust manifold of petrol engine（9）Seal the discharge gas derived pipe of connection（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 waste gas ingress pipe（14）Volume control device is sealedly connected between abutting end, accelerator control device of the volume control device by side（17）Control, works as accelerator control device（17）When being relaxed by being stepped on state, volume control device is suitable to appropriate waste gas from discharge gas derived pipe（12）Import waste gas ingress pipe（14）.
2. hay mover according to claim 1, it is characterised in that：Volume control device includes air valve（13）, air valve（13）Side be provided with control its aperture qcr controller（15）, qcr controller（15）By accelerator control device（17）Loosen rotating speed control.
3. hay mover according to claim 2, it is characterised in that：Air valve（13）Including being snug fit at valve casing（130）Interior valve element（133）, valve casing（130）Middle and upper part be provided with the inlet, outlet of lateral symmetry distribution, valve element（133）On be arranged with for sealing air valve（13）The inlet, outlet sealing ring（134）, valve element（133）Top and valve casing（130）Inwall top between be connected with control spring（132）, control spring（132）It is suitable to valve element（133）Push out, qcr controller（15）It is suitable to drive valve element（133）It is mobile；The inlet, outlet respectively with the gas introduction tube（12）With gas eduction tube（14）Abutting end is connected.
4. hay mover according to claim 3, it is characterised in that：Qcr controller（15）Including small runner（156）, small runner（156）With adjacent great wheel（155）Between pass through one-way clutch one（157）Drive connection, great wheel（155）Lateral wall is provided with the slide bar of multiple radial directions（154）, each slide bar（154）It is upper to be arranged with sliding sleeve respectively（153）And pass through connecting spring between the two（152）Elastic connection, each sliding sleeve（153）Outer end be fixedly connected with secter pat（151）, each secter pat（151）Central Symmetry is distributed and constitutes a face of cylinder；Valve element（133）Outer end all the time with each secter pat（151）The Cylindrical Surfaces Contact of composition coordinates；With accelerator control device（17）The driving wheel of coaxial rotation（18）With small runner（156）Drive connection.
5. exhaust gas turbocharge servicing unit according to claim 4, it is characterised in that：Waste gas ingress pipe（14）Upper and air inlet pipe（1）Connection end tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger.
6. exhaust gas turbocharge servicing unit according to claim 5, it is characterised in that also include：Pressure fan（20）, 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 to ajutage（22）The interior appropriate outside air of feeding.
7. exhaust gas turbocharge servicing unit according to claim 6, it is characterised in that：Pressure fan（20）Including impeller（204）, impeller（204）With adjacent driven pulley（203）By one-way clutch two（205）Drive connection, driven pulley（203）Stretch out one end and the driving wheel of pressure fan air inlet（18）Drive connection, pressure fan（20）Air outlet at be provided with check valve（21）, ajutage（22）Upper and air inlet pipe（1）Connection end tangentially towards exhaust-driven turbo-charger exhaust-gas turbo charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442406.XA CN106703975A (en) | 2015-07-24 | 2015-07-24 | Mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442406.XA CN106703975A (en) | 2015-07-24 | 2015-07-24 | Mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106703975A true CN106703975A (en) | 2017-05-24 |
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ID=58894698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510442406.XA Pending CN106703975A (en) | 2015-07-24 | 2015-07-24 | Mower |
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| Country | Link |
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| CN (1) | CN106703975A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1938511A (en) * | 2004-03-31 | 2007-03-28 | 斯堪尼亚有限公司 | Arrangement for recirculation of exhaust gases of a super-charged internal combustion engine |
| CN201535195U (en) * | 2009-11-11 | 2010-07-28 | 苏州工业园区驿力机车科技有限公司 | Automobile engine waste gas turbine pressure boost auxiliary device |
| CN202914175U (en) * | 2012-11-28 | 2013-05-01 | 吉林大学 | Exhaust emission by-pass governing system of engine |
| CN103291469A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary gas valve control mechanism |
| CN103492687A (en) * | 2011-02-25 | 2014-01-01 | 邦迪克斯商用车系统有限责任公司 | Method of operating a vehicle equipped with a pneumatic booster system |
-
2015
- 2015-07-24 CN CN201510442406.XA patent/CN106703975A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1938511A (en) * | 2004-03-31 | 2007-03-28 | 斯堪尼亚有限公司 | Arrangement for recirculation of exhaust gases of a super-charged internal combustion engine |
| CN201535195U (en) * | 2009-11-11 | 2010-07-28 | 苏州工业园区驿力机车科技有限公司 | Automobile engine waste gas turbine pressure boost auxiliary device |
| CN103492687A (en) * | 2011-02-25 | 2014-01-01 | 邦迪克斯商用车系统有限责任公司 | Method of operating a vehicle equipped with a pneumatic booster system |
| CN202914175U (en) * | 2012-11-28 | 2013-05-01 | 吉林大学 | Exhaust emission by-pass governing system of engine |
| CN103291469A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary gas valve control mechanism |
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Application publication date: 20170524 |
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| WD01 | Invention patent application deemed withdrawn after publication |