Safety radiator cap
AssigneeIndustrial Technology Research Institute
InventorsYen-Cheng Chen, Shu-Fahr Chang
Life of this patent
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Abstract
A safety radiator cap for radiator providing a safety plate or wire made of shape memory alloy. The safety plate or wire bends downward under ambient temperature. High temperature water in the radiator causes the safety plate to extend out due to the memory characteristic of the alloy, and the safety plate thus presses against the neck of the filling hole.
Claims6
A safety radiator cap for a radiator comprising a cap and a steam outlet cover connected by a first connecting element, and a compression spring set between said cap and said steam outlet cover and enclosing said first connecting element, characterized in that:
- a second connecting element fixed at one end thereof to the bottom of said steam outlet cover;
- and
- a safety plate or wire of shape memory alloy material provided at the other end of said second connecting element;
- whereby both ends of said safety plate or wire bend downward under ambient temperature such that a clearance formed between both ends is smaller than the diameter of the neck of a filling hole of the radiator;
- and said ends of said safety plate or wire extend out to a horizontal position under high temperature and the extension length is larger than the diameter of the neck of said filling hole.
Dependencies are inferred from the claim text.