Sir Harry Ricardo activated the lazy flame front with the help of turbulence almost 85 years ago by sandwiching the compressing end gasses towards the igniter. The two-way benefits realized out of this design change were positive charge displacements into a much-desired compact combustion chamber. The shadowed areas coming very close to each other at the end of the stroke came to be known as the quench areas as they greatly prevented secondary explosions that led to engine knock.

 

Squishing or call it quenching allowed the usage of higher compression ratios, which were primarily possible due to the much-needed turbulence during the process of in-cylinder combustion. Higher compression ratios are the only means to improve thermal efficiencies out of IC Engines. The other limiting factors being the anti-knock capabilities of the fuels in use.

 

The single other inherent feature coming into play in ICE’s at TDC are - The piston coming to a momentary halt at the end of the compression stroke before reversing, forming a straight line between the gudgeon pin and the connecting rod in relation to the big-end pin supported by the crankshaft main bearing axis before starting the power stroke.

At this critical stage the gasses are compressed to the very maximum and confined to the combustion chamber while the ignition process has already been activated. The ignition delay period needs to successfully commence the combustion process that causes rapid expansion in the burning gases to eventually whack the piston down the tube. At this critical phase there lies a thin red line separating combustion from explosion in any ICE. It is at this critical moment that my simple modifications to the age old “ squish bands “ overcomes the ignition delay period and accelerates the combustion process while the big-end bearing rolls over to start an efficient power stroke in a fast expanding cylinder.

 

Grooved turbulence in the form of vortexes through the quench areas achieve a much better mix and spread between the largest constituent known as Nitrogen along with the volatile hydrocarbons that need to meet up with the vital Oxygen molicules to start-up a fast chain of chemical reactions once ignited in an running ICE. This form of thermal reactions lead to greater expansions in the hot gases preventing any secondary explosions during the process of in-cylinder combustion.

 

This form of combustion can be compared to breaking the sound barrier with out breaking up the plane or the pilot flying it. Only when you experience this form of combustion taking place in silence will you realize the difference grooves can make & bring about to existing ICE’s. You need to step on the gas from low revs in top gear to experience the build up speeds without hearing bells ringing in the form of pinging indicating - The lazy flame front has woken up at last !

I can’t find a better explanation to my simple Discovery relating to grooving  – If you do find something different or better happening, kindly let the " World " know of it.

As the Issues of  " Global Warmings " are taking center stage like never before ? Bringing warmth from all directions almost forcing us to uncloth  .......   In time to come !

sing !!!  

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