What are the two primary methods used to provide lubrication for a semi-hermetic compressor?

The two primary methods used to provide lubrication for a semi-hermetic compressor are splash and injection.

In semi-hermetic compressors, which are designed to be more efficient and quieter than traditional models, lubrication is essential for minimizing friction and ensuring smooth operation. The splash method involves mechanical components, such as the spinning crankshaft, which helps to splash oil onto various moving parts within the compressor, providing adequate lubrication to areas that might not receive it through other means. This method is relatively simple and effective for certain compressor designs.

On the other hand, the injection method is typically used to deliver a precise amount of oil directly into the compressor's lubrication system. This is done through an oil pump that delivers oil under pressure to critical components, ensuring that they receive consistent lubrication. This method helps maintain optimal operating conditions and improves the lifespan and reliability of the compressor.

Together, these two methods ensure that the semi-hermetic compressor operates effectively, maintaining the necessary lubrication for its components during operation.