Breaker Point - English Definition & Meaning

Definition

A breaker point, also known as contact point, is a mechanical switch used in the ignition system of older gasoline engines. Its job is to interrupt the flow of current to the ignition coil, causing it to generate a high-voltage spark. Think of it as a tiny, precisely timed on/off switch. As the engine rotates, a cam lobe pushes the breaker point open and closed. The gap between the points needs to be correctly adjusted for proper ignition timing. Breaker points require periodic replacement and adjustment due to wear. Modern engines use electronic ignition systems, eliminating the need for breaker points. They represent a simpler, though less reliable, technology.

Etymology

The term 'breaker point' directly describes its function. It refers to the point at which an electrical circuit is 'broken' or interrupted. This interruption is crucial for creating the high-voltage spark needed for ignition. The term emerged with the development of early internal combustion engines that relied on mechanical ignition systems. It reflects the fundamental mechanism of breaking the circuit to induce a spark.

Related Words

Examples

• The mechanic adjusted the breaker point gap to improve the engine's timing. 🔧
• Worn or pitted breaker points can cause the engine to misfire. 🚗
• Replacing the breaker points is a routine maintenance task in older cars. ⚙️
• The breaker point's opening and closing is precisely timed by the distributor cam. 📐

Encouragement

While breaker points might seem like ancient technology, understanding their function can provide insight into the evolution of engine technology. It's a reminder that even the most advanced systems have humble beginnings. Learning about these older technologies can give you a greater appreciation for the innovations that have shaped the modern world! 💡

Learn More

📖 Learn more on Wikipedia