20-11-2012, 05:30 PM
K- Series Engine
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Introduction
By the end of 1985, the responsibility for subsequent design levels was handed over to the Production Engine Team, who up to this point had been working on 4 valve per cylinder versions of S and 0 series as well as the A+ engine for Metro.
They set about designing a mass-production feasible version of what was to become known as the K series. They came up with an engine which is still a model in design for ease of manufacture; the layered construction was one feature that enabled the use of Low Pressure Sand casting technique for which Austin Rover own a number of patents.
In addition, a smaller capacity 1.1 litre engine was also developed, along with a more basic, and cheaper to produce 8-valve cylinder head to give the new engine range an entry level.
WHY TO USE K-SERIES ENGINE ?
The K-series engines are the most advanced in the car manufacturer's stable of engines. They will be fitted in all existing models of cars over the next 3- 5 years. In India, the Bharat 4 norms (which are derived from the Euro 4 norms) of emission are to be implemented by April 2010.
The company says that the engine will have a CO2 emission of 109 gm/km and could be further cut down, while the figures for Europe norms would require 120 gm/km in the years to come. Apart from being the most advanced green car engines in their class, the K-series engines deliver greater fuel-efficiency.
Multilayered Steel (MLS) Gasket
mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression.
Gaskets allow "less-than-perfect" mating surfaces on machine parts where they can fill irregularities. Gaskets are commonly produced by cutting from sheet materials, such as gasket paper, rubber, silicon, metal, cork, felt, neoprene, nitrile rubber, fiberglass, Teflon or a plastic polymer.
The composition of multilayer steel head gaskets (MLS) is completely different to the composition of conventional fiber gaskets. A fiber gasket consists of a punched steel sheet that gives strength and consistence to the gasket, fiber material in both sides of this steel sheet and some metallic rings that resist the high temperatures and pressures of the combustion chambers of the cylinders