초록 ▼

An engine air particle separator for use with a turbine engine and providing a first engine air flow path to the engine inlet in which foreign particles are separated from the air entering engine, and a second direct flow path for air to the engine inlet presenting minimum pressure drop and such tha

An engine air particle separator for use with a turbine engine and providing a first engine air flow path to the engine inlet in which foreign particles are separated from the air entering engine, and a second direct flow path for air to the engine inlet presenting minimum pressure drop and such that the ram air flows directly into the engine inlet. The second flow path includes actuatable blow-in doors which are actuated by a pneumatic door actuator mechanism operable to cause the doors to close upon the admission of air at operating pressure to the mechanism. Mechanism is provided to prevent the doors from opening when actuating air pressure is applied to the door actuator mechanism but falls below a preselected limit and to permit the doors to open in response to spring bias and ram pressure acting thereagainst when the air at actuating pressure is withdrawn.

대표청구항 ▼

An engine air particle separator adapted to be connected to the inlet of a gas turbine engine to control air flow thereto and comprising: (A) first flow path defining means connecting the engine inlet to atmosphere and fabricated to separate foreign particles from the air passing therethrough to the

An engine air particle separator adapted to be connected to the inlet of a gas turbine engine to control air flow thereto and comprising: (A) first flow path defining means connecting the engine inlet to atmosphere and fabricated to separate foreign particles from the air passing therethrough to the engine, (B) second flow path defining means connecting the engine inlet directly to atmosphere therethrough and oriented so that ram air may be directed therethrough into said engine inlet with minimal pressure loss, (C) door means in said second flow path defining means actuatable between a closed position wherein air flow through the second means is blocked so that all air entering the engine must flow through the first means, and an open position wherein air flow through said second means is permitted, (D) pressure responsive door actuating means which is spring biased to cooperate with ram air door loading to normally retain the door means in said open position, and which is responsive to applied operating pressure to overcome the force of the spring bias and the ram air door loading to move the door means to the closed position, (E) means to supply operating pressure to said door actuating means to actuate said closed position and to remove operating pressure from said door actuating means to permit said door means to move to said open position, and (F) means to prevent said door means from moving to said open position when the actuating pressure is supplied to said actuating means from said supply means but has fallen below a predetermined pressure.