Which friction-reducing technologies are used in the Variable Compression Turbo Engine?

Question

02-01-2020
Physics

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Which friction-reducing technologies are used in the Variable Compression Turbo Engine?

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joshnajd joshnajd · Answer 1 · 2020-01-09T08:57:12+01:00

Friction-reducing technologies used in the Variable Compression Turbo Engine are Diamond-like coating on valve lifters, micro finishing on crankshaft and camshaft and mirror bore coating on cylinder wall.

Explanation:

Variable compression is a technology to adjust the compression of an internal combustion engine while the engine is in operation. At this time friction may occur that need to be reduced. To reduce this friction some technologies are used like

Diamond-like coating on valve lifters
Micro finishing on crankshaft and camshaft
Mirror bore coating on cylinder wall

A hydrogen free diamond like carbon coating is applied to an engine valve lifter to reduce mechanical loss. Micro finishing on crankshaft and camshaft achieves improvement in geometric parameters such as roundness. Mirror bore coating on cylinder wall raises energy efficiency by reducing the friction inside the engine.