Flexible, hermetic pivot seal for torque motor
AssigneeHoneywell International Inc.
InventorDavid T. Druhan
Life of this patent
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Abstract
A torque motor (10) includes a support (20), a jet tube passage (42) in the support having a first end opening (43) and a second end opening (45), a jet tube (30) extending into the jet tube passage (42) through the first end opening (43) for directing a flow of fluid into a chamber (40) in fluid communication with the jet tube passage second end opening (45), and a flexible, convoluted, seal (46) hermetically connected to the jet tube passage (42) and the jet tube (30) for sealing the jet tube passage first end (43) while permitting at least a portion of the jet tube (30) to move relative to the jet tube passage (42).
Claims10
A torque motor comprising:
- a support;
- a jet tube housing in the support, said jet tube housing having a first end opening and a second end opening;
- a jet tube extending into the jet tube passage through the first end opening for directing a flow of fluid into a chamber in fluid communication with the jet tube housing second end opening;
- a flexible, convoluted, metallic seal hermetically connected to said jet tube housing and said jet tube for sealing said jet tube housing first end while permitting at least a portion of said jet tube to move relative to said jet tube housing;
- a first nickel-cobalt alloy band plated to said jet tube housing and to said seal to secure said seal to said jet tube housing;
- and
- a second nickel-cobalt alloy band plated to said seal and to said jet tube to secure said seal to said jet tube.
Dependencies are inferred from the claim text.