1. A thrust reverser actuator gimbal assembly for mounting a thrust reverser actuator to a fixed structure of a thrust reverser, the gimbal assembly comprising:
a gimbal;
first and second gimbal pins mounted to the gimbal and defining a first pivot axis, the first and second gimbal pins adapted to form a first pivotal joint with the fixed structure of the thrust reverser;
third and fourth gimbal pins mounted to the gimbal and defining a second pivot axis normal to the first pivot axis, the third and fourth gimbal pins adapted to form a second pivotal joint with the thrust reverser actuator; and
wherein the first and second gimbal pins each include a shaft and a flange integrally formed together, the flange including a pair of bores for receiving a fastener to fasten the respective gimbal pin to the thrust reverser fixed structure.
2. The thrust reverser actuator gimbal assembly of claim 1, wherein each shaft of the respective first and second gimbal pin extends perpendicular to its respective integrally formed flange.
3. The thrust reverser actuator gimbal assembly of claim 1, wherein each shaft and flange of the respective first and second gimbal pins are forged as a single component.
4. A thrust reverser actuator gimbal assembly comprising:
a gimbal;
an extendable thrust reverser actuator;
first and second gimbal pins defining a first pivot axis, the first and second gimbal pins adapted to form a first pivotal joint with a fixed structure of a thrust reverser;
third and fourth gimbal pins mounted between the gimbal and the thrust reverser actuator and creating a second pivotal joint therebetween, and defining a second pivot axis normal to the first pivot axis; and
wherein the first and second gimbal pins each include a shaft and a flange integrally formed together, the flange including a pair of bores for receiving a fastener to fasten the respective gimbal pin to the thrust reverser fixed structure.
5. The thrust reverser actuator gimbal assembly of claim 4, wherein the flange and the shaft are forged as a single component.
6. The thrust reverser actuator gimbal assembly of claim 4, wherein the fixed structure comprises a front fitting forming a portion of the thrust reverser.
7. The thrust reverser actuator gimbal assembly of claim 6, wherein the front fitting couples to a torque box of the thrust reverser fixed structure.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Apparatus for detecting airflow blockage of a fan that is driven by a permanent split-capacitor single-phase AC motor having a main winding and an auxiliary winding, the apparatus comprising:
main sensor means for detecting an AC current in said main winding;
auxiliary sensor means for detecting an AC current in said auxiliary winding;
means for detecting a difference between the AC currents detected by said main and auxiliary sensor means; and
alarm means for indicating an airflow blockage of said fan when the detected difference exceeds a specified setpoint.
2. The apparatus of claim 1, wherein at least one of said main and auxiliary sensor means comprises a resistor connected in series with its respective winding, and a thermistor thermally coupled to said resistor for measuring the heating of said resistor due to current in the respective winding.
3. The apparatus of claim 1, wherein said main and auxiliary sensor means each comprise a resistor connected in series with the respective main and auxiliary winding, and a thermistor having a resistance that varies in relation to an RMS value of said AC current in the respective winding, and wherein said means for detecting a difference includes a bridge circuit coupled to said thermistors.