The type of cutting torch that uses a vacuum created by oxygen flow to draw in fuel from a very low-pressure fuel source is called a "Injector-Type Cutting Torch".
Here's a step-wise explanation:
1. Understanding Cutting Torches:
- Cutting torches are tools used in various metalworking applications, such as cutting, welding, and brazing.
- They typically use a combination of oxygen and a fuel source (such as acetylene) to generate a high-temperature flame for cutting through metal.
2. Injector-Type Cutting Torch:
- An injector-type cutting torch is a specific design of cutting torch.
- It operates on the principle of utilizing the high-pressure oxygen flow to create a vacuum or low-pressure area that draws in the fuel gas from a low-pressure source.
3. How It Works:
- In an injector-type cutting torch, high-pressure oxygen is fed into the torch and flows through a nozzle at high velocity.
- As the high-velocity oxygen exits the nozzle, it creates a low-pressure area (venturi effect) within the torch body.
- This low-pressure area draws in the fuel gas (e.g., acetylene) from a separate low-pressure source through a mixing chamber.
- The oxygen and fuel gas mix within the torch body and are ignited at the torch tip to create a high-temperature cutting flame.
4. Advantages:
- Injector-type cutting torches are known for their ability to efficiently mix oxygen and fuel gas at the torch tip, resulting in a stable and precise cutting flame.
- They are often used in applications where fine control over the cutting process is required.
So, the type of cutting torch that uses a vacuum created by oxygen flow to draw in fuel from a very low-pressure fuel source is referred to as an **"Injector-Type Cutting Torch."**