Programmable jet engine test station

• US 4,821,217 A
• Filed: 01/12/1987
• Issued: 04/11/1989
• Est. Priority Date: 01/12/1987
• Status: Expired due to Term

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Jackson, Brian K., Wilson, Joel D.
• Primary Examiner(s): Gruber, Felix D.
• Application Number:
  US07/002,413
• Time in Patent Office: 820 Days
• Field of Search: 364/550, 364/551, 364/579, 364/580, 364/900, 73/116, 73/117.2, 73/117.3
• US Class Current: 701/3
• CPC Class Codes: G01M 15/05 by combined monitoring of two or more different engine parameters
• CPC Class Codes: G01M 15/14 Testing gas-turbine engines or jet-propulsion engines

Abstract

A programmable test station automatically performs static tests of electrical and pneumatic systems of jet aircraft engines. The test station automatically stimulates the systems to be tested on each engine and measures their response. A programmable data acquisition computer controls both stimuli and measurement, and generates data. The station is operatively connected to a plurality of engines simultaneously and tests certain systems on each in accordance with station user commands. The station includes a voice generator which permits the computer to "speak" to the station user for the purpose of receiving instructions and for communicating instruction acknowledgements and requests.

Claims

1. For use in connection with a jet aircraft engine having certain electrical and pneumatic systems including oil and fuel pressure transducers, engine igniters, and EEC computer, air bleed valves, air-operated starter and thermo/anti-ice valves, and certain solenoids, a test station for automatically performing on-ground tests of such electrical and pneumatic systems when said engine is in a static, nonrunning condition, such station comprising:

a programmable data acquisition computer;

input means, controllable by said computer, and operable to provide a certain test stimulus to any one of said electrical and pneumatic systems;

output means, operatively connected to said computer, for sensing response of said any one of said systems to said test stimulus, in a manner so that computer may generate test data indicative of such response; and

wherein said computer includes programming means operable by a test station user for permitting said user to select said certain test stimulus and to cause said computer to control said input means in accordance with said selected stimulus, and further, said programming means being operable by said user to control generation of test data by said computer, such data indicating system response to said test stimulus.

2. The test station of claim 1, wherein said input and output means may be simultaneously connected to each of a plurality of jet aircraft engines, each engine having said electrical and pneumatic systems, and wherein said programming means is user-operable to permit said user to select a certain test stimulus for the electrical and pneumatic systems of any one of said jet aircraft engines, and to cause said computer to control said input means in accordance with the same.

3. The test station of claim 2, including a remote communication terminal positioned adjacent each jet aircraft engine, wherein each terminal is operatively connected to said data acquisition computer, said terminal being operable to receive test instructions from a test station user and to communicate said instructions to said programming means in said computer, said programming means being further operable to cause said remote terminal to acknowledge said instructions and to request certain other instructions from said user.

4. The test station of claim 3, wherein each remote communication terminal includes voice generator means for providing computer verbalization, in a user-audible manner, of both said remote terminal'"'"'s acknowledgment of instructions and request for other instructions.

5. The test station of claim 1, including a remote communication terminal positioned adjacent each jet aircraft engine, wherein each terminal is operatively connected to said data acquisition computer, said terminal being operable to receive test instructions from a test station user and to communicate said instructions to said programming means in said computer, said programming means being further operable to cause said remote terminal to acknowledge said instructions and to request certain other instructions from said user.

6. The test station of claim 5, wherein each remote communication terminal includes voice generator means for providing computer verbalization, in a user-audible manner, of both said remote terminal'"'"'s acknowledgment of instructions and request for other instructions.