Methods and apparatus for testing valves and switches for automo

Details Methods and apparatus for testing valves and switches for automo Methods and apparatus for testing valves and switches for automo

1995-10-24

1998-01-27

Dombroske, George M.

Measuring and testing

Testing of apparatus

731181, G01M 1500

Patent

active

057124345

ABSTRACT:
The present invention provides methods and apparatus for testing solenoid switches and force motors installed in the hydraulic system of automotive transmissions for controlling the flow of transmission fluid. Solenoid switches and force motors are tested under selectively variable electrical, air flow, and air pressure conditions, to simulate conditions experienced during normal operation in an automotive transmission. By simulating such operating conditions, the solenoid switches and force motors are more efficiently screened to avoid component failure when reinstalled in an automotive transmission. The present invention further enables numerous different size solenoids, force motors and switches to be tested by a single device.

REFERENCES:
patent: 3686954 (1972-08-01), Motl
patent: 4274281 (1981-06-01), Hoodwin
patent: 4809544 (1989-03-01), Magoolaghan
patent: 5060177 (1991-10-01), Gregory et al.
patent: 5127257 (1992-07-01), Rice
patent: 5445016 (1995-08-01), Neigebauer

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