On a semi-hermetic compressor, where is the oil pump located?

In a semi-hermetic compressor, the oil pump is located at the compressor end shaft. This design allows the oil pump to operate efficiently by drawing oil directly from the compressor itself, ensuring that lubrication is provided where it is most needed. The oil pump plays a crucial role in circulating oil throughout the compressor to lubricate and cool its moving parts, reducing friction and wear.

The positioning at the end shaft is advantageous because it allows for easy access to the oil from the compressor and helps in maintaining appropriate oil pressure and flow within the system, contributing to reliable compressor operation. Proper lubrication is vital for protecting the compressor from damage due to overheating and excessive wear over time.

The other options do not accurately represent the typical design and function of a semi-hermetic compressor. The compressor inlet, condenser unit, and evaporator coil are not designed to house the oil pump, as each component serves specific functions related to the refrigeration cycle rather than lubrication.