EGR vharafu

EGR vharafu - iyo yepasi chikamu chekupedza gasi recirculation system (Exhaust Gasi Recirculation). EGR basa inosanganisira kuderedza kuwanda kwekuumbwa kwenitrogen oxides, izvo chibereko chebasa rejini inopisa mukati. Kuti udzikise tembiricha, mamwe emagasi emhepo anotumirwa kumashure kune injini yekupisa mukati. Mavharuvhu akaiswa pane ese peturu uye dizeli injini, kunze kweiyo ine turbine.

Kubva pakuona kwe ecology, sisitimu inoita basa rakanaka, ichidzikamisa kugadzirwa kwezvinhu zvinokuvadza. Nekudaro, kazhinji basa reUSR rinokonzera matambudziko mazhinji kune vatyairi. Ichokwadi ndechokuti iyo EGR valve, pamwe chete nekutora manifold uye kushanda sensors, yakafukidzwa nesoti panguva yekushanda kwegadziriro, iyo inokonzera kusagadzikana kushanda kwejini inopisa mukati. Naizvozvo, varidzi vemotokari vazhinji vanoenda kwete kuchenesa kana kugadzirisa, asi kukanganisa iyo system yese.

EGR valve iripi

Chishandiso chataurwa chiri chaizvo painjini yekupisa yemota yako. Mune mhando dzakasiyana, kuuraya uye nzvimbo inogona kunge yakasiyana, zvisinei, iwe unoda tsvaga iyo yakawanda yekudya. Kazhinji pombi inobva mairi. iyo valve inogonawo kuiswa pane yakawanda yekutora, mune yekutora turakiti kana pane throttle body. Semuyenzaniso:

Iyo EGR vharafu paFord Transit VI (dhiziri) iri pamberi peinjini, kurudyi kweoiri dipstick.

Iyo EGR valve paChevrolet Lacetti inoonekwa nekukurumidza kana hood yavhurwa, iri kuseri kweiyo ignition module.

Iyo EGR valve paOpel Astra G iri pasi pekona yekurudyi yevhavha yekudzivirira injini

 

uyewo mienzaniso mishoma:

BMW E38 EGR vharafu

Ford Focus EGR valve

EGR vharafu paOpel Omega

 

Chii chinonzi EGR valve uye marudzi emagadzirirwo ayo

Kuburikidza neEGR valve, imwe huwandu hwemagetsi emhepo inotumirwa kune yakawanda yekudya. zvino ivo vanosanganiswa nemhepo uye mafuta, mushure mezvo vanopinda mukati mejini injini cylinders pamwe chete nemusanganiswa wemafuta. Huwandu hwemagasi hunotarwa nepurogiramu yekombuta yakaiswa muECU. Sensors inopa ruzivo rwekuita sarudzo nekombuta. Kazhinji iyi inotonhorera tembiricha sensor, absolute pressure sensor, air flow mita, throttle position sensor, intake manifold air tembiricha sensor, nevamwe.

Iyo EGR system nevharuvhu hazvishande zvakaramba. Saka, ivo havashandiswe kune:

• idling (pane inodziya-up mukati memoto injini);
• inotonhora mukati memoto injini;
• damper yakazaruka.

Zvikwata zvekutanga zvakashandiswa zvaive pneumomechanical, ndiko kuti, inodzorwa nekupinza manifold vacuum. Zvisinei, nekufamba kwenguva vakava electropneumaticuye (EURO 2 uye EURO 3 zviyero) uye zvizere zvemagetsi (zviyero EURO 4 uye EURO 5).

Mhando dzeUSR mavharuvhu

Kana motokari yako iine electronic EGR system, inotungamirirwa neECU. Kune marudzi maviri edhijitari EGR mavharuvhu - nemakomba matatu kana maviri. Vanovhura uye vanovhara nerubatsiro rwekushanda solenoids. Mudziyo une maburi matatu une mazinga manomwe ekutenderera, mudziyo une maviri une nhanho nhatu. Iyo yakanyanya kukwana vharafu ndiyo iyo yekuvhura nhanho inoshandiswa uchishandisa stepper yemagetsi mota. Inopa kudzora kwakatsetseka kwekuyerera kwegasi. Mamwe masisitimu emazuva ano EGR ane yavo yega gasi kutonhora unit. Ivo zvakare vanokutendera iwe kuti uwedzere kudzikisa mwero wemarara nitrogen oxide.

Zvikonzero zvikuru zvekutadza kwehurongwa nemhedzisiro yavo

Depressurization yeEGR valve - kukundikana kwakajairika kweiyo EGR system. Nekuda kweizvozvo, kusvetwa kusingadzoreki kwemafungu emhepo muhuwandu hwekudya kunoitika. Kana motokari yako iine injini inopisa mukati ine mhepo yakawanda mita, izvi zvinotyisidzira kutsamira musanganiswa wemafuta. Uye kana paine airflow pressure sensor mumotokari, musanganiswa wemafuta uchawedzerwazve, nekuda kweiyo kudzvanywa kweiyo manifold yekudyara kuchawedzera. Kana injini yemoto yemukati iine ese ari pamusoro apa sensors, ipapo pakusaita inogashira yakafumiswa mafuta musanganiswa, uye mune mamwe maitiro ekushanda ichave yakaonda.

Yakasviba vharafu ndiro dambudziko rechipiri rinowanzoitika. Chii chokugadzira nayo uye kuti tingaichenesa sei, tichaongorora pasi apa. Ndokumbira utarise kuti kushomeka kudiki mukushanda kweinjini yekupisa kwemukati kunogona kutungamira kune yakakosha mukana wekusvibiswa.

Kuparara kwese kunoitika nekuda kwechimwe chezvikonzero zvinotevera:

• gasi rakawandisa rinopera rinopfuura nepavhavha;
• magasi mashoma akawandisa anopfuura nemo;
• muviri wevharuvhu uri kubuda.

kukundikana kweiyo exhaust gasi recirculation system inogona kukonzerwa nekutadza kwezvikamu zvinotevera:

• mapaipi ekunze ekugovera gasi rinopedza simba;
• EGR valve;
• thermal valve inobatanidza vacuum source uye USR valve;
• solenoids iyo inodzorwa nekombuta;
• pedza gasi pressure converters.

Zviratidzo zveEGR valve yakaputsika

Kune huwandu hwezviratidzo zvinoratidza kuti kune matambudziko mukushanda kweEGR valve. Iwo makuru ndeaya:

• kusagadzikana kushanda kweinjini yekupisa kwemukati pakusina basa;
• kazhinji kumira kwejini inopisa mukati;
• misfires;
• jerky kufamba kwemotokari;
• kuderera kwevacuum pane yakawanda yekutora uye, semhedzisiro, kushanda kweinjini yekupisa mukati pane yakafumiswa mafuta musanganiswa;
• kazhinji kana kukanganisa kwakakomba mukushanda kwevhavha yemagetsi ekugadzirisa gasi - motokari yemagetsi yemotokari inoratidza chiedza chekuongorora.

Panguva yekuongorora, kukanganisa makodhi akadai se:

• P1403 - kuparara kwevhavha yemagetsi ekugadzirisa gasi;
• P0400 - kukanganisa mukupedza gasi recirculation system;
• P0401 - kusashanda kweiyo inopedza gasi recirculation system;
• P0403 - waya kuputsika mukati mevharuvhu yekudzora yeanopotera gasi recirculation system;
• P0404 - kusashanda kweEGR control valve;
• P0171 Musanganiswa wemafuta wakanyanya kuderera.

Nzira yekutarisa EGR valve?

Paunenge uchitarisa, unofanirwa kutarisa mamiriro emachubhu, waya dzemagetsi, zvibatanidza nezvimwe zvikamu. Kana motokari yako iine vharafu yepneumatic, unogona kushandisa vacuum pombi kuzviisa mukuita. Kuti uwane ruzivo rwakakwana, shandisa midziyo yemagetsi, izvo zvinokutendera kuti uwane iyo yekukanganisa kodhi. Necheki yakadaro, unofanirwa kuziva maitiro emagetsi evhavha, kuitira kuti uone mutsauko pakati pe data yakagamuchirwa uye yakaziviswa.

Cheki inoitwa nenzira inotevera:

1. Bvisa vacuum hoses.
2. Bvisa mudziyo, nepo mhepo isingafaniri kupfuura nayo.
3. Bvisa chibatanidza kubva kune solenoid valve.
4. Uchishandisa waya, simba mudziyo kubva mubhatiri.
5. Bvisa vharafu, apo mhepo inofanira kupfuura nayo.

Apo cheki yakaratidza kuti chikwata hachina kukodzera kuenderera mberi kushanda, inoda kutenga uye kuisa imwe itsva, asi kazhinji, inorayirwa kuti ingodzima valve yeUSR.

Nzira yekuvhara sei EGR valve?

Kana paine matambudziko mukushanda kweiyo EGR system kana vharafu, saka iyo yakapusa uye yakachipa mhinduro ingave yekuivhara.

Zvinofanira kucherechedzwa pakarepo kuti imwe chip tuning haina kukwana. Ndiko kuti, kudzima kudzora kwevhavha kuburikidza neECU hakugadzirise matambudziko ese. Iyi nhanho inongosiya iyo diagnostics system, semhedzisiro iyo komputa haiburitse chikanganiso. Zvisinei, valve pachayo inoramba ichishanda. Naizvozvo, kuwedzera zvakakosha kuita mechanical kusabatanidzwa kwayo kubva pakushanda kweICE.

Mamwe ma automaker anosanganisira akakosha mavharuvhu plug mumotokari pasuru. kazhinji, iri ndiro gobvu simbi ndiro (kusvika 3 mm gobvu), akaita segomba mudziyo. Kana iwe usina plug yepakutanga yakadaro, unogona kuzviita iwe pachako kubva kusimbi yehukobvu hwakakodzera.

Somugumisiro wekuisa plug, kutonhora mumasilinda kunokwira. Uye izvi zvinotyisidzira njodzi yekutsemuka kwecylinder musoro.

wobva wabvisa EGR valve. Mune mamwe mamodheru emota, kuwanda kwekutora kunofanirwawo kubviswa kuita izvi. Mukufambirana neizvi, chenesa nzira dzayo kubva pakusvibiswa. wobva wawana iyo gasket yakaiswa panzvimbo yekunamatira valve. Mushure mezvo, shandura iyo nesimbi plug yataurwa pamusoro apa. Iwe unogona kuzviita iwe pachako kana kutenga kune mutengesi wemotokari.

Munguva yekusangana, iyo yakajairwa gasket uye plug nyowani inosanganiswa panzvimbo yekunamatira. Izvo zvinodikanwa kuomesa chimiro nemabhaudhi zvakanyatsonaka, sezvo fekitori plugs kazhinji isina kusimba. Mushure maizvozvi, usakanganwa kusunungura hose yevacuum uye kuisa mapulagi mukati mavo. Pakupera kwekuita, iwe unofanirwa kuita yakataurwa chip tuning, ndiko kuti, kugadzirisa kune ECU firmware kuitira kuti komputa isaratidze kukanganisa.

Nzira yekuvhara EGR

Isu tinodzima EGR

Ndeapi mhedzisiro yejamming iyo USR system?

Kune mativi akanaka neakaipa. Izvo zvakanaka zvinosanganisira:

• soti haiunganidzi mumuunganidzi;
• kuwedzera maitiro ane simba emotokari;
• hapana chikonzero chekuchinja EGR valve;
• kuchinja kwemafuta zvishoma.

Negatives:

• kana pane catalyst mujini inopisa mukati, zvino ichakundikana nokukurumidza;
• mudziyo wekuisa chiratidzo chekuputsika pane dashboard wakabatiswa ("cheki" girobhu remwenje);
• zvinogona kuwedzera mukushandiswa kwemafuta;
• yakawedzera vharafu boka kupfeka (kashoma).

Kuchenesa EGR valve

Kazhinji, iyo EGR system inogona kudzoreredzwa nekungochenesa mudziyo. Kazhinji kupfuura vamwe, varidzi vemotokari Opel, Chevrolet Lacetti, Nissan, Peugeot motokari.

Hupenyu hwesevhisi hweakasiyana EGR masisitimu ndeye 70 - 100 zviuru zvemakiromita.

pa chenesa EGR pneumatic valve vanoda kubva soot chigaro chakachena uye dzinde. With kuchenesa EGR nekutonga solenoid valve, kazhinji, sefa iri kucheneswa, iyo inodzivirira vacuum system kubva pakusvibiswa.

Pakuchenesa, iwe unozoda zvinotevera maturusi: akavhurika-magumo uye bhokisi wrenches, maviri carburetor cleaners (furo uye pfapfaidzo), Phillips screwdriver, valve lapping paste.

Kuchenesa EGR valve

Mushure mekunge mawana pane iyo EGR valve iripo, unofanirwa kupeta materminals kubva kubhatiri, pamwe nekubatanidza kubva pairi. zvino, uchishandisa wrench, sunungura mabhoti anobata valve, mushure mokunge tabvisa. Mukati memudziyo unofanirwa kunyoroveswa ne carburetor flush.

Izvo zvinodikanwa kugezesa chiteshi mune yakawanda nefoam cleaner uye chubhu. Nzira yacho inofanira kuitwa mukati me5 ... maminitsi gumi. Uye dzokorora kusvika ka5 (zvichienderana nehuwandu hwekusvibiswa). Panguva ino, valve yakagara yakanyura yakaora uye yakagadzirira kuparadzaniswa. Kuti uite izvi, sunungura mabhaudhi uye uite disassembly. Zvadaro, nerubatsiro rwekuputika paste, tinokuya valve.

Kana lapping yaitwa, iwe unofanirwa kunyatso geza zvese, uye kuyera, uye kunama. zvino unoda kunyatsoomesa uye kuunganidza zvose. wo iva nechokwadi chekutarisa vharuvhu kuti isimbise. Izvi zvinoitwa neparafini, inodururwa mune imwe kamuri. Tinomirira kwemaminitsi mashanu, kuitira kuti parafini irege kuyerera mune imwe kamuri, kana kune reverse side, kunyorova hakuoneki. Kana izvi zvikaitika, ipapo valve haina kuvharwa zvakasimba. Kuti ubvise kuparara, dzokorora nzira inotsanangurwa pamusoro apa. Kuunganidzwa kwehurongwa kunoitwa mune reverse order.

EGR vharafu kutsiva

Mune zvimwe zviitiko, kureva, kana valve yakundikana, zvakakosha kuitsiva. Nomuzvarirwo, iyi nzira ichave neyayo magadzirirwo emhando yemota yega yega, zvisinei, mune zvakajairika, iyo algorithm ichave yakafanana.

Zvisinei, nguva pfupi isati yatsiviwa, maitiro akawanda anofanira kuitwa, ayo ane chokuita nekombuta, kugadzirisazve ruzivo, kuitira kuti magetsi "agamuchire" chigadzirwa chitsva uye usape chikanganiso. Saka, unofanira kutora matanho anotevera:

• tarisa mavacuum hoses ye exhaust gas recirculation system;
• tarisa mashandiro eUSR sensor uye iyo yese system;
• tarisa patency yemutsara wekutenderera gasi;
• tsiva iyo EGR sensor;
• kuchenesa hunde revhavha kubva kune kabhoni deposits;
• bvisa kodhi yekukanganisa mukombuta uye edza kushanda kwechigadzirwa chitsva.

Kana iri yekutsiviwa kwechigadzirwa chakataurwa, tichapa muenzaniso wekutsiviwa kwayo pamotokari yeVolkswagen Passat B6. Iyo algorithm yebasa ichave seizvi:

1. Bvisa vharafu yechigaro sensor connector.
2. Sunungura zvisungo uye bvisa mahosi ekutonhodza kubva pamagetsi evharuvhu.
3. Sunungura ma screws (maviri padivi rega rega) pazvisungo zvemachubhu esimbi akagadzirirwa kugovera uye kuburitsa magasi kubva / kune EGR vharafu.
4. Muviri wevharuvhu wakasungirirwa kune injini yekupisa yemukati uchishandisa bracket ine rimwe simba bhaudhi uye maviri M8 screws. Saizvozvowo, unoda kuvasunungura, kubvisa valve yekare, kuisa imwe itsva panzvimbo yayo uye simbisa screws kumashure.
5. Batanidza valve kune ECU system, uye wozoigadzirisa uchishandisa software (inogona kunge yakasiyana).

Sezvauri kuona, maitiro acho ari nyore, uye kazhinji, pamakina ese, haaratidze matambudziko makuru. Kana iwe ukakumbira rubatsiro pachiteshi chebasa, ipapo nzira yekutsiviwa ikoko inodhura anenge 4 ... 5 zviuru rubles nhasi, pasinei nemhando yemotokari. Kana iri mutengo weEGR valve, inotangira kubva ku1500 ... 2000 rubles uye kunyanya (zvichienderana nemhando yemotokari).

Zviratidzo zvekutadza kweinjini yedhiziri

Ivhavha yeEGR inosungirirwa kwete chete peturu, asiwo painjini dzedizeli (kusanganisira turbocharged). Uye chinhu chinonyanya kufadza mumutsara uyu ndechekuti panguva yekushanda kwechigadzirwa chataurwa pamusoro apa, matambudziko anotsanangurwa pamusoro pejini yepeturu yeinjini yedhiziri inonyanya kukosha. Kutanga iwe unofanirwa kutendeukira kune misiyano mukushanda kwechigadzirwa painjini dizeli. Saka, pano vharuvhu inovhura isina basa, ichipa anenge 50% mweya wakachena muhuwandu hwekutora. Sezvo huwandu hwemarevolutions hunowedzera, inovhara uye inovhara yatova mutoro wakazara pane injini inopisa mukati. Kana iyo mota ichimhanya mukudziya-up mode, iyo valve yakavharwawo zvizere.

Matambudziko acho anonyanya kuenderana nekuti mhando yemafuta edhiziri yemumba, kuiisa zvinyoro, inosiya zvakanyanya kudiwa. Munguva yekushanda kweinjini yedhiziri, ndiyo EGR valve, iyo yakawanda yekudyara, uye masensa akaiswa muhurongwa akasvibiswa. Izvi zvinogona kukonzera chimwe kana zvimwe zvezvinotevera zviratidzo zve "chirwere":

• kusagadzikana kushanda kweinjini yekupisa yemukati (jerks, inoyangarara isingaite kumhanya);
• kurasikirwa kwemaitiro ane simba (inowedzera zvisina kunaka, inoratidza yakaderera dynamics kunyangwe mumagiya akaderera);
• kuwedzera mafuta kunwa;
• kuderera kwesimba;
• Injini yekupisa mukati ichashanda zvakanyanya "zvakaoma" (mushure mezvose, EGR valve mumajini edhiziri ndiyo inongodiwa kupfavisa kushanda kwemota).

Nomuzvarirwo, izvo zvakanyorwa zviitiko zvinogona kunge zviri zviratidzo zvekumwe kusashanda, zvisinei, zvichiri kukurudzirwa kutarisa iyo yakataurwa unit uchishandisa komputa diagnostics. Uye kana zvichidikanwa, kuchenesa, kutsiva kana kungoivhara.

kune zvakare imwe nzira yekubuda - yekuchenesa iyo yakawanda yekudyara uye iyo yese inoenderana system (kusanganisira iyo intercooler). Nekuda kwekuderera kwemafuta edhiziri, iyo system yese inosvibiswa zvakanyanya nekufamba kwenguva, saka kuparara kunotsanangurwa kunogona kuve mhedzisiro yekusvibiswa kwebhanari, uye inopera mushure mekuita kuchenesa kwakakodzera. Iyi nzira inokurudzirwa kuti iitwe kanenge kamwe pamakore maviri, uye zvichida kakawanda.