Опубликовано: 14 окт. 2018 г.Встреча двух непримиримых конкурентов была неизбежна. У нас было не очень много времени, но из этого противостояния мы постарались извлечь максимум информации. По ценам в данных комплектациях: Субару 40.000 долларов, Хонда 43.000
Опубликовано: 21 нояб. 2019 г.Я купил Subaru Impreza WRX STI GRB, история покупки, как мы сделали на нее ТО, как и где прошили и как ездят Субару? Почему плавятся поршни и проворачивает вкладыши? Все ответы в полной версии видео.
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Различия между оппозитным и рядным четырехцилиндровым двигателем
Опубликовано: 6 авг. 2017 г.В этом видео проводится сравнение оппозитного четырехцилиндрового двигателя subaru и рядного четырехцилиндрового двигателя toyota. Выясняются их основные преимущества и недостатки.
Видео взято с канала Engineering Explained — https://goo.gl/VZstk7 переведено и озвучено мной.
In this video we are going to be comparing inline four cylinder engines with boxer four cylinder engines, and talking about the individual advantages and disadvantages of each engine layout. We have a 3D printed EJ20 Subaru boxer engine, as well as a 22RE Toyota inline-four engine. We’ll start fairly basic and work our way through several different topics for each layout, including the four strokes, the firing interval and order, the vibrations of each layout, the packaging differences, the cylinder head differences, and finally a bit about the sound.
Looking at either layout, they’re both based on the same four strokes. Intake, compression, power, and exhaust. Both engines fire one cylinder for every 180 degrees of crankshaft rotation, but they have slightly different firing orders. On each engine, we can see cylinders one, two, three, and four. For the boxer engine, the firing interval is one, three, two, four, while on the straight four it’s one, three, four, two, so the order of the last two cylinders firing is switched.
On the boxer engine, you’ll notice the pairs of pistons move in and out together. This means that the primary forces when the piston reaches the top of the cylinder, as well as when they reach the bottom of the cylinder, are canceled out. On the inline four cylinder engine, it’s the same story, the primary forces cancel out as the pairs of pistons reach the top and bottom at the same time.
When we get into secondary forces, however, the engines begin to differ. Secondary forces are created due to the piston traveling faster at the top half of the piston than at the bottom half, something I’ll include a link to in the description for a video that breaks it down in great detail. What you need to know though, is that when the piston reaches the very top of the cylinder, or the very bottom, the secondary force points up or out from the piston. Now with the boxer engine, since the pistons point opposite each other, these forces are balanced out, resulting in a very smooth running engine. For the inline four, all of the forces point in the same direction, and thus do not cancel each other out, causing the engine to vibrate unless balancing shafts are used.
The boxer engine isn’t perfect, however, because the pistons do not perfectly align with each other, it creates a rocking moment which makes the engine want to rotate back and forth along the vertical axis. What’s fascinating, however, is that if you add two cylinders to either of these designs, whether it’s a boxer six or an inline six, you can perfectly eliminate all first and second order forces and moments. You might think the boxer six would have a rocking motion from the cylinder banks of three, but each bank of three cylinders cancels out the rocking motion of the other, unlike in a V6 configuration.
The other biggest advantage of the boxer engine is the low profile, which keeps the center of gravity low and thus reduces the amount of load transfer you have in the car during braking, cornering, or accelerating, which improves grip. With a lower center of gravity, you can also reduce body roll and choose to use softer springs. Additionally, in the event of a collision, it’s easier to position the engine so that it goes underneath the passenger compartment, rather than into the passenger compartment, for improved safety.
That’s not to say the inline four doesn’t have it’s own size advantages. Generally it’s a bit more compact, with only one cylinder head, and it’s not quite as wide as the boxer engine. This leaves more room for suspension geometry, and can also allow for a better steering angle, since the tires won’t have as much of an interference at full lock.
Вся правда про оппозитные двигатели и полный привод Subaru. Как работает? | Техническая программа
Опубликовано: 24 нояб. 2019 г.Всё про разновидности полного привода Субару и мифы, связанные с оппозитными двигателями.
Мы — АВТО ПЛЮС — телеканал, который вещает 24 часа в сутки. Телеканал высокой автомобильной культуры. У нас самые горячие и подробные тест-драйвы, самые свежие новости автомобильного мира, захватывающие гонки, профессиональное мнение экспертов и многое другое.
Опубликовано: 13 дек. 2017 г.Данное видео, включая звуковую дорожку, имеет ограничение 18+ и является интеллектуальной собственностью автора. Любое копирование, полностью или частично и трансляция на других ресурсах или сми под любым предлогом, запрещено автором.
Опубликовано: 23 окт. 2017 г.Как всегда убогий микрофон сделал из меня шепелявого монстра, но это мелочи.
Старался, забыл пару вещей упомянуть, да напомнят мне о них в злых комментариях ))