Fixed scroll assembly, scroll compressor, and method for machining fixed scroll assembly

A fixed scroll assembly, comprising:

• a fixed scroll component comprising an end plate and a fixed scroll extending from a first side of the end plate, wherein the fixed scroll component is provided with an enhanced vapor injection jet orifice extending from an upper surface of the fixed scroll component to a compression chamber, wherein an enhanced vapor injection fluid external to a compressor comprising the fixed scroll assembly is capable of being supplied into the compression chamber via the enhanced vapor injection jet orifice, and the enhanced vapor injection jet orifice has a first end leading to the compression chamber and a second end leading to an exterior of the fixed scroll assembly;
• and
• a sealing assembly, configured to seal the second end of the enhanced vapor injection jet orifice,
• wherein the enhanced vapor injection jet orifice comprises a first part and a second part, wherein the first part extends to the first side of the end plate and is not overlapped with the fixed scroll when viewed in an axial direction of the fixed scroll assembly, and the second part extends through the end plate into the fixed scroll and is overlapped with the fixed scroll when viewed in the axial direction of the fixed scroll assembly, wherein the second part comprises a recess formed in the fixed scroll by removing a part of material from a lower surface of the end plate towards the fixed scroll.