Fluid handling – Destructible or deformable element controlled – Heat destructible or fusible
Patent
1990-03-23
1991-02-05
Schwadron, Martin P.
Fluid handling
Destructible or deformable element controlled
Heat destructible or fusible
220 893, F16K 1738
Patent
active
049896270
ABSTRACT:
The thermal fuse valve (10, 110) is disposed within a passage (14, 114) of the wheel rim (12, 112). The thermal fuse valve (10, 110) includes a retention mechanism (22, 122) which engages a complementary-shaped retention mechanism (13, 113) of the passage (14, 114) such that the thermal fuse valve (10, 110) is disposed stationary relative to the passage (14, 114). The thermal fuse valve (10, 110) comprises a fuse body (20, 120) joined with a sealing fuse plug (30, 130) by way of a fusible material (40, 140). The fuse body (20, 120) includes a central opening (24, 24A, 124) receiving an axial extension (34, 134) of said sealing plug (10, 110). A seal (50, 150) is disposed about the perimeter of the sealing fuse plug (30, 130) in order to retain pressurized fluid within the tire, the pressurized fluid communicating with the central opening (24, 24A, 124) and acting upon the extension ( 34, 134) of the sealing fuse plug (30, 130). An increase in temperature to a predetermined temperature causes the fusible material (40, 140) to melt and, in conjunction with the increased fluid pressure within the wheel, permits the sealing fuse plug (30, 130) to be released from the passage (14, 114) so that the pressurized fluid escapes through the central opening (24, 24A, 124).
REFERENCES:
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Allied-Signal Inc.
Decker Ken C.
Lee Kevin L.
Palguta Larry J.
Schwadron Martin P.
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