With such a construction, a unique and complicated chassis is required to neatly organize the engine. The horizontal cylinder layout makes the boxer engine broad and low. The cases must be split instead of just yanking off the main caps (as in an inline or vee). Also, since their heads face the car instead of open-air, there is a limited amount of room available when such activities, such as removing spark plugs or heads, are done. Up beneath the engine, parts may be tucked up. What are the disadvantages of a boxer engine? In the event of an accident, the engine will not cause severe harm. The boxer engine is low and flat underneath the front cabin. Sometimes, the force of a collision pulls the engine back toward the driver, injuring the driver and passengers. This reduced center of gravity results in improved balance and stability, as well as enhanced control. The Boxer Engine, which is designed to be installed horizontally in the engine compartment, provides a lower center of gravity. The boxer engine was able to be designed compactly and flatly as a result of this layout. Particularly advantageous to this configuration was that the dynamic masses of the cylinders were better balanced because the timing of the pistons in such an opposed configuration meant that any momentum produced by the power/intake strokes and the exhaust/compression strokes was effectively counterbalanced by the corresponding piston movement of the opposite side.ĭue to a double-offset crankshaft, which caused the two cylinders to be somewhat offset inside the open-topped engine frame, this piston movement was made feasible by the piston movement. So the engine is more efficient since less power is lost in the driving gears. The piston’s force is transferred directly to the crankshaft, gearbox, and wheels, needing fewer transmission components than an I or V design. The boxer engine’s flat shape and horizontal mechanism facilitate alignment with the driveshaft and gearbox. What are the Advantages of a Boxer engine? Compared to in-line engines, this innovative drive system provided several benefits. Known as the contra unit, it was the first boxer-type engine in automotive history – and it was used in various applications, including passenger automobiles, commercial trucks, and racing cars. The term “contra engine” was used to describe a driving system in which two horizontally opposed cylinders rotated a single crankshaft simultaneously. The boxer engine, also called a flat engine, has horizontal cylinders instead of vertical cylinders, and the pistons move in opposing directions. Source: Subaru A brief history on Boxer Engines
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