Two familiar motors have mostly used this technology. Twin spark by Royal Enfield and DTS-i by Bajaj. These two technologies are working under the same mechanism.
So, simply a conventional twin spark means that two spark plugs are placed over the combustion chamber, and at the power stroke (which is an expansion of the piston from top dead center to bottom dead center) both of the two spark plugs will be ignited. these two spark plugs are placed at the opposite ends of the combustion chamber which is approximately 90 degree to the valve axis. Also, some of the other models like TVS motors also used this technology in their 125cc models.
 |
| Twin spark badge in royal enfiled |
DTS-i (Digital Twin Spark Ignition)
In 2003 Bajaj had first dramatically improved on existing engine technology and launched as DTS-i (Digital Twin Spark-ignition). DTS-i technology is now patented by bajaj motors. twin spark ignition is controlled by a semi-conductor chips which is programmed. To increase the performance of the engine bajaj uses the both two & three sparks plugs in a single cylinder. The ignition system on the twin spark is a digital system with static spark advanced and no moving parts subject to wear. It is mapped by the integrated digital electronic control box which also handles fuel injection and valve timing.
 |
| Layout between conventional 4 stroke engine and DTS-i engine. |
Highlights of twin spark technology.
- Less vibration.
- Less noise.
- Long life for the engine parts.
- less in fuel consumption as a result the mileage will be quite good.
- No over heating.
- Better starting efficiencies in cold start condition.
- Power stroke (Expansion stroke) will be high which means better work outputs.
By hibeam | Tech review
