Did you know that the four square engine was something? In fact, the history of early designs dates back nearly 100 years for a man named Edward Turner. He was a motorcycle designer in the UK, as he formulated a built -in engine that mainly fused small double cylinders in four cylinders. The design sold to a company called Aerial Motors, and therefore Square Four was born.
One does not simply adhere to a few twins guaranteed together for four resort. Such a video from YouTube Driving 4 answers He explains that this engine is really a square shape with cylinders that directly indicate the elbow columns. Yes, this The elbow column-The design uses two of the elbow column in the rotation connected to the directed budget factors. The squares flow each other by 180 degrees, and the presses are met in diagonally. This results in the shooting order similar to four lines.
Without becoming very technical, all of this leads to a well -balanced and smoothly balanced engine. Based on the video, it doesn’t seem bad either. The square design makes it very compressed, as it usually occupies the same space by V-TWIN or even a single large cylinder mill.
Square Four was not just a flash in the pan. Aerial Motors has built a Square Four motorcycle for about 30 years, and Square Four engines were also used by a few other motorcycle manufacturers. It has made a good power, but it was an expensive engine at the time, and he suffered from high temperature issues.
There was also a valuable small space for a prosperous entrance system to feed the engine, which was good as long as PowerBand remained low in the ReV. But with the development of motorcycle technology into small and high support engines, the low -speed square of the fourth square could not follow. Air production was finished from the fourth square in 1959.
The video notes that technology has evolved to the point where four square can flourish. But with the world slowly moving towards electrical energy, this is likely to be a motor design that is only found in history books.