초록 ▼

A collector for a vaned diffuser in a centrifugal compressor, wherein the radial cross-sectional area of the collector housing at the entrance to the collector outlet duct is 40% to 80% of the entrance area of the outlet duct and progresses smoothly to the outlet duct entrance area. Progression in c

A collector for a vaned diffuser in a centrifugal compressor, wherein the radial cross-sectional area of the collector housing at the entrance to the collector outlet duct is 40% to 80% of the entrance area of the outlet duct and progresses smoothly to the outlet duct entrance area. Progression in collector housing cross-sectional area is produced by variation of the collector axial height. At the intersection with the outlet duct, the collector has a step in axial height so as to at least partially direct circumferential flow from the collector into the outlet duct entrance.

대표청구항 ▼

A collector for a vaned diffuser in a centrifugal compressor, said vaned diffuser having an outlet, said collector comprising: (a) a housing having a circumferential entrance opening, an inner-radius wall, an outer radius wall and an outlet, said entrance opening being located in the inner-radius wa

A collector for a vaned diffuser in a centrifugal compressor, said vaned diffuser having an outlet, said collector comprising: (a) a housing having a circumferential entrance opening, an inner-radius wall, an outer radius wall and an outlet, said entrance opening being located in the inner-radius wall of said housing, and encircling and communicating with the outlet of the vaned diffuser; (b) an outlet duct emerging from said housing, said outlet duct having an entrance and forming at said entrance a sharp intersection with the outer-radius wall of said housing; (c) said housing, at a first angular location radially in line with said sharp intersection, having a radial cross-sectional area of from about 40% to about 80% of the radial cross-sectional area of said outlet duct entrance; (d) said housing having a smooth transition in radial cross-sectional area from said first circumferential location to said outlet duct entrance.