초록 ▼

An airflow particle separator for a gas turbine engine provided for removing foreign particles and moisture from the air flow. The separator comprises an inner wall and an outer wall defining a passageway therebetween, with the inner wall including an inlet portion diverging in a downstream directio

An airflow particle separator for a gas turbine engine provided for removing foreign particles and moisture from the air flow. The separator comprises an inner wall and an outer wall defining a passageway therebetween, with the inner wall including an inlet portion diverging in a downstream direction away from the separator axis while converging towards the outer wall to form a throat to accelerate incoming air to a higher velocity in a substantially axial direction. The inner wall then converges towards the separator axis and diverges from said outer wall with a splitter ring disposed between the inner and outer walls for splitting said passageway into inner and outer passages, with the outer passage adapted to bypass moisture and foreign particles. The leading edge of the splitter ring is located downstream and inward of said throat. The inner wall upstream of the throat area is provided with a deflector surface in the form of a concave parabolic curve such that as particles strike the deflecting inner wall they will be focused in a predetermined bounce zone of the outer wall adjacent and downstream of the throat such that the particles will be bounced on top of and downstream of the splitter ring into the outer passage.

대표청구항 ▼

An airflow particle separator having an axis, the particle separator being provided for removing foreign particles and moisture from the air flow, said separator comprising an inner wall and an outer wall defining a passageway therebetween, said inner wall including an inner wall portion diverging i

An airflow particle separator having an axis, the particle separator being provided for removing foreign particles and moisture from the air flow, said separator comprising an inner wall and an outer wall defining a passageway therebetween, said inner wall including an inner wall portion diverging in a downstream direction away from the separator axis while converging towards the outer wall to form a throat to accelerate incoming air to a higher velocity in a substantially axial direction; said inner wall at said throat area including a flow turning portion wherein the inner wall converges towards the separator axis downstream of the said turning portion and said turning portion being constructed and arranged so as to minimize boundary layer separation; splitter means disposed between the inner and outer walls for splitting said passageway into inner and outer passages, said outer passage adapted to bypass moisture and foreign particles, the leading edge of the splitter means being located downstream and inward of said throat; the diverging inner wall portion upstream of the throat area having a deflector surface and having an axial configuration in the form of a concave parabolic curve such that as particles strike the deflecting inner wall portion they will be focused in a predetermined bounce zone of the outer wall adjacent and downstream of the throat such that the particles will be bounced on top of and downstream of the splitter means into the outer passage.