Particle separator for a turbine engine

A particle separator for use with a turbine engine to separate particles from air entering the turbine engine, the particle separator comprising

• an air intake passageway for conducting air into the turbine engine, the air intake passageway comprising an annular radially inner air intake passageway for conducting an inner air flow and an annular radially outer air intake passageway for conducting an outer air flow and surrounding the inner air intake passageway,
• an annular radially inner particle passageway in communication with the inner air intake passageway through an annular radially inner opening such that inertia of inner particles entrained in the inner air flow tends to cause the inner particles to flow from the inner air intake passageway into the inner particle passageway to allow air from the inner air flow to flow through the inner air intake passageway and into the turbine engine without the inner particles, the inner air intake passageway extending downstream from the inner opening radially outwardly relative to the inner particle passageway, and
• an annular radially outer particle passageway in communication with the outer air intake passageway through an annular radially outer opening such that inertia of outer particles entrained in the outer air flow tends to cause the outer particles to flow from the outer air intake passageway into the outer particle passageway to allow air from the outer air flow to flow through the outer air intake passageway and into the turbine engine without the outer particles, the outer air intake passageway extending downstream from the outer opening radially inwardly relative to the outer particle passageway.

A particle separator for use with a turbine engine to separate particles from air entering the turbine engine, the particle separator comprising

• a radially inner sleeve and a radially outer sleeve surrounding the inner sleeve,
• an annular intermediate flow divider positioned between the inner sleeve and the outer sleeve and surrounding the inner sleeve, the intermediate flow divider and the inner sleeve providing an annular radially inner upstream air intake passageway, the intermediate flow divider and the outer sleeve providing an annular radially outer upstream air intake passageway, the intermediate flow divider being arranged to divide a flow of air into a radially inner air flow that flows into the inner upstream air intake passageway and a radially outer air flow that flows into the outer upstream air intake passageway,
• an annular radially inner flow divider extending between the intermediate flow divider and the inner sleeve such that a leading edge of the inner flow divider is positioned downstream from a leading edge of the intermediate flow divider, the inner and intermediate flow dividers providing an annular radially inner downstream air intake passageway, the inner flow divider and the inner sleeve providing an annular radially inner particle passageway, the inner flow divider being arranged to divide the inner air flow such that inertia of inner particles entrained in the inner air flow tends to cause the inner particles to flow from the inner upstream air intake passageway into the inner particle passageway to allow air from the inner air flow to flow from the inner upstream air intake passageway through the inner downstream air intake passageway and into the turbine engine without the inner particles, the inner downstream air intake passageway being positioned radially outwardly relative to the inner particle passageway, and
• an annular radially outer flow divider extending between the intermediate flow divider and the outer sleeve such that a leading edge of the outer flow divider is positioned downstream from a leading edge of the intermediate flow divider, the outer and intermediate flow dividers providing an annular radially outer downstream air intake passageway, the outer flow divider and the outer sleeve providing an annular radially outer particle passageway, the outer flow divider being arranged to divide the outer air flow such that inertia of outer particles entrained in the outer air flow tends to cause the outer particles to flow from the outer upstream air intake passageway into the outer particle passageway to allow air from the outer air flow to flow from the outer upstream air intake passageway through the outer downstream air intake passageway and into the turbine engine without the outer particles, the outer downstream air intake passageway being positioned radially inwardly relative to the outer particle passageway.