Д-260

ДВИГАТЕЛЬ ММЗ Д-260

Минский моторный завод (ММЗ) занимается изготовлением различных двигателей внутреннего сгорания для автобусов, а также промышленной, сельскохозяйственной техники. 6-цилиндровый дизель Д-260 от ММЗ был выпущен в 1995 году и оснащался он рядным чугунным блоком цилиндров с чугунными мокрыми гильзами и с масляными форсунками для охлаждения поршней. В этот блок инженеры поместили стальной коленвал с ходом поршня 125 мм (диаметр коренных шеек 85.25 мм, шатунных шеек 73 мм), стальные шатуны и алюминиевые поршни диаметром 110 мм. Все это позволяет получить рабочий объем 7.12 литра.

Накрывает блок цилиндров чугунная головка с 12-ю клапанами и со вставными седлами клапанов. Распредвала в ГБЦ нет — он стоит в блоке и посредством толкателей, штанг и коромысел, действует на клапаны. Размер впускных клапанов 48 мм, выпускных 42 мм, толщина стержня 11 мм. Регулировка клапанов Д-260 требуется по необходимости, но проверять зазоры нужно после каждых 500 часов работы. Зазоры клапанов должны быть следующими: впускные — 0.25 мм, выпускные — 0.45 мм. Порядок регулировки клапанов такой же, как и последовательность работы ДВС — 1-5-3-6-2-4. Давление масла — 2.8-4.5 кгс/см2.

ДВИГАТЕЛЬ ММЗ Д-260 1

Дизель Д-260 оснащается топливным насосом ЯЗДА 363 и турбокомпрессором ТКР 7. С 1998 года началось производство версии под стандарт Евро-1, а в 2001 году дизель Д-260 довели до Евро-2. Далее последовали Евро-3 моторы, которые встали на конвейер в 2005 году и отличались наличием впрыска Common rail с топливным насосом Bosch СРN2.2 и ЭБУ Bosch EDC7UC31.

У нас Вы можете заказать валы коленчатые GENMOT для популярных моделей двигателей Д-260. Подробнее в каталоге.

Характеристики двигателя

Рабочий объем двигателя7,12 л.
Диаметр цилиндров110 мм
Длина хода поршня125 мм
Очередность включения цилиндров1-5-3-6-2-4
Мощность двигателя155 лошадиных сил
Количество оборотов коленвала2100 об/мин
Частота вращения в режиме холостого хода850 – 2260 об/мин
Крутящий момент (max)622 Нм
Степень сжатия16
Вес двигателя710 кг
Габариты130х70,5х111,8 см

Устройство двигателя Д260

Область применения дизелей — места с неограниченным воздухообменом. Дизели рассчитаны на эксплуатацию при температуре окружающего воздуха от плюс 40 С до минус 45 С. Дизель Д-260.1 и его модификации используются в качестве силового агрегата на энергонасыщенных колесных тракторах (Д-260.1 и Д-260.2), гусеничных тракторах (Д-260.14), кормоуборочных комбайнах (Д-260.4), энергонасыщенных энергетических средствах УЭС-250 (Д-260.7) и других машинах различного назначения. Конструкция дизелей рассчитана на длительную работу без капитального ремонта при условии соблюдения правил эксплуатации, хранения и своевременного технического обслуживания.

В состав силового агрегата данной модели входит большое количество рабочих деталей, узлов и систем. Основные позиции:

  • блок цилиндров;
  • головки блока ГБЦ 2 штуки;
  • кривошипно-шатунный механизм;
  • механизм газораспределения;
  • топливная система;
  • турбокомпрессор;
  • система охлаждения;
  • система смазочная.
ДВИГАТЕЛЬ ММЗ Д-260 2


1 – масляный картер; 2 – масляный насос; 3 – демпфер; 4 – шкив коленчатого вала; 5 – ремень вентилятора; 6 – крышка распределения; 7 – шкив натяжной; 8 – форсунка для охлаждения поршня; 9 – вентилятор; 10 – водяной насос; 11 – корпус термостатов; 12 – шатун; 13 – поршень; 14 – гильза цилиндров; 15 –колпак; 16 крышка головки цилиндров; 17 – головка цилиндров; 18 – блок цилиндров; 19 – задний лист; 20 – маховик; 21 – коленчатый вал; 22 – маслоприемник; 23 – распределительный вал.

Модификации Д-260 и их отличия

Д-260.1 — основная модификация с ТКР-7Н3 (Евро-1), ТКР-700-4 (Евро-2)без интеркулера с отдачей 155 л.с. при 2100 об/мин, а крутящий момент равен 622 Нм при 1400 об/мин.
Д-260.2 — аналог Д260.1без интеркулера мощностью 130 л.с. при 2100 об/мин, момент 500 Нм при 1400 об/мин.
Д-260.4 — комбайновый мотор с турбиной ТКР 700-2-12Мс интеркулером и мощностью 209 л.с. при 2100 об/мин, момент 808 Нм при 1500 об/мин.
Д-260.5 — мотор с интеркулером для техники весом до 32 тонн.Его мощность 230 л.с. при 2100 об/мин, момент 883 Нм при 1300-1600 об/мин.
Д-260.6 — дизель для комбайнов и тракторовмощностью 206 л.с. при 2100 об/мин, момент 1000 Нм при 1500 об/мин.
Д-260.7 — комбайновый мотор на базе 260.1с другим впускным и выпускным коллекторами, с насосом НШ-25, измененной опорой двс, со своей маслоподачей и маслосливом с турбины. Здесь стоит турбокомпрессор ТКР 700-2-12М с интеркулером и развивающий 250 л.с. при 2100 об/мин, момент 961 Нм при 1500 об/мин.
Д-260.8 — версия без интеркулерана 102 л.с. при 1800 об/мин, крутящий момент 497 Нм при 1500 об/мин.
Д-260.9 — комбайновый двигатель с промежуточным охладителем и с ТКР 700-2-12Движок создан на базе 260.1 и отличается насосом НШ-32. Его мощность 180 л.с. при 2100 об/мин, момент 690 Нм при 1500 об/мин.
Д-260.11 — автомобильный мотор185 л.с. при 2100 об/мин, момент 745 Нм при 1500 об/мин.
Д-260.12 — мотор для грузовиков массой до 36 тоннразвивает мощность 250 л.с. при 2100 об/мин и момент 970 Нм при 1500 об/мин.
Д-260.13 — автомобильный ДВС204 л.с. при 2100 об/мин, крутящий момент 768 Нм при 1300-1575 об/мин.
Д-260.14 — дизель для гусеничных тракторов с интеркулером140 л.с. при 1800 об/мин, момент 682 Нм при 1300-1450 об/мин. Мотор создан на основе 260.1 и стартером, генератором и приводом помпы.
Д-260.16 — двигатель с интеркулером280 л.с. при 2100 об/мин, момент 1124 Нм при 1500 об/мин.


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