Inertial particle separator

Patent · Tue Apr 09 00:00:00 EST 1985

OSTI ID:5276582

Breitman, D S; Langenegger, H

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 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 wil be bounced on top of and downstream of the splitter ring into the outer passage.

• Assignee: Pratt and Whitney Canada Inc. (Canada)
• Patent Number(s): US 4509962
• OSTI ID: 5276582
• Resource Relation: Patent Priority Date: Priority date 6 Oct 1983, Canada; Other Information: PAT-APPL-539748
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
GAS TURBINE ENGINES
AIR CLEANING SYSTEMS
INERTIAL SEPARATORS
AIR FLOW
ENGINEERED SAFETY SYSTEMS
ENGINES
EQUIPMENT
FLUID FLOW
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
POLLUTION CONTROL EQUIPMENT
SEPARATION EQUIPMENT
330103* - Internal Combustion Engines- Turbine