What is the function of oil in rotary gear and vane type primers?

In rotary gear and vane type primers, the function of oil primarily revolves around sealing small irregularities within the components. The oil acts as a lubricant that fills gaps and inconsistencies between moving parts, ensuring a tighter seal. This is crucial for maintaining effective operation because any small leaks can lead to a decrease in efficiency and performance.

The sealing action of the oil prevents air from entering the system while maintaining a proper vacuum during the priming process, which is essential for the effective transfer of liquid. Thus, the oil helps to optimize the functioning of the primer by ensuring that it can create and maintain the necessary pressure under various operating conditions. This sealing effect is vital for proper operation, especially in high-performance applications where precision is required.