Unikalūs „Volvo Trucks“ jėgos agregatai dabar yra dar efektyvesni nei kada nors iki šiol. Pristačius atnaujintus „Euro 6“ variklius ir išmaniąsias „I-Shift“ pavarų dėžes „Volvo Trucks“ sunkvežimiai žengė dar vieną žingsnį kelyje į efektyvesnius krovinių gabenimus.
„Suderinti puikias važiavimo savybes su efektyviu degalų vartojimu – daug sunkiau nei pasiekti tiesiog puikių važiavimo savybių ar efektyvaus degalų naudojimo“, – sako „Volvo Trucks“ prezidentas ir generalinis direktorius Claesas Nilssonas. „Volvo Trucks“ nuo pat pradžių nusprendė siekti suderinti šias sunkvežimio savybes, todėl pasirinkome patys kurti ir gaminti visus jėgos agregatus. Tokiu būdu galime užtikrinti optimalią variklio ir pavarų dėžės integraciją bei ryšį tarp jų. Be to, nuolat tiksliai deriname techninę ir programinę įrangą, kad išgautume geriausią įmanomą gerų važiavimo savybių ir mažų degalų sąnaudų balansą.“
Integruota jėgos agregatų sistema susideda iš atnaujintų „Euro 6“ variklių ir unikalių „Volvo I-Shift“ pavarų dėžių. Atnaujinti varikliai yra puikus pavyzdys, kaip keli nedideli pakeitimai gali lemti reikšmingus savybių pakeitimus. Du reikšmingiausi atnaujinimai – didesnis suspaudimo laipsnis D13 420 ir 460 AG versijų varikliuose bei naujas optimizuotas turbokompresorius D13 variklio 500 ir 540 AG modifikacijose.
„Daugeliui mūsų klientų svarbu palaikyti aukštą vidutinį važiavimo greitį, leidžiantį sutaupyti nemažai kelionės laiko. Tai gali būti itin svarbu pristatant klientų krovinius. Tuo pat metu, kiekvienas vežėjas stengiasi kaip galima labiau sumažinti išlaidas degalams, todėl siekiant geriausio rezultato svarbu maksimaliai panaudoti visą bendrą variklio ir pavarų dėžės potencialą “, – sako „Volvo Trucks“ jėgos agregatų komponentų vadovas Matsas Franzénas.
Konkretus degalų sąnaudų sumažėjimas labai priklauso nuo pasirinktos sunkvežimio komplektacijos ir naudojimo srities. Pavyzdžiui, tolimiesiems gabenimams skirto „Volvo FH“ degalų sąnaudas galima sumažinti iki 3 %, o gabenant itin sunkius krovinius – pavyzdžiui, vežant medieną – galima sutaupyti dar daugiau. To pasiekti pavyks derinant naujuosius variklius su neseniai pristatytomis „I-Shift“ pavarų dėžėmis turinčiomis palėtintas pavaras bei sudvejintomis galinėmis varančiosiomis ašimis, iš kurių viena gali būti pakeliama.
Kiti svarbūs veiksniai, padedantys sumažinti degalų sąnaudas – kabinos aerodinaminių savybių patobulinimai. Oro pasipriešinimas neproporcingai didėja greičio atžvilgiu. Pavyzdžiui, padvigubinus greitį, aerodinaminės jėgos padidėja keturis kartus ir tampa svarbiausiu faktoriumi lemiančiu sunkvežimio degalų sąnaudas. „Diegiant aerodinaminių savybių patobulinimus, labai svarbus holistinis požiūris. Siekdami nustatyti mūsų klientams naudingiausias optimizavimo priemones, kruopščiai patikrinome kiekvieną sunkvežimio smulkmeną“, – sako aerodinaminių savybių patobulinimų tyrimų vyriausiasis inžinierius Andersas Tenstamas.
Kad oro srautas būtų tolygesnis, „Volvo Trucks“ patobulino priekinio buferio aptaką, oro srauto nukreipiklius, purvasargius ir ratų nišas. Šie, iš pirmo žvilgsnio, nedideli patobulinimai drauge leidžia reikšmingai pagerinti bendrą rezultatą ir suteikia didelę naudą klientui.
„Mūsų klientams nuolat pageidauja naujų, produktyvumą ir ekonomiją didinančių sprendimų. Norėdami patenkinti jų poreikius, visapusiškai stengiamės nuolat tobulinti savo sunkvežimių važiavimo savybes ir tuo pat metu mažinti degalų sąnaudas“, – sako Claesas Nilssonas.
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