Patent ID: 9617921
Date: 2017-04-11
CPC Classifications: F01D,F02C,F03G,F05D,F16K

Claim:
1. A thermal actuator, comprising: an enclosure comprising shoulder portions; a movable element coupled to the enclosure and configured to occupy first and second positions relative to the enclosure, the movable element being biased toward the first position; and an expansion material disposed within the enclosure such that, when the expansion material expands, the expansion material moves the movable element toward the second position, the expansion material comprising an inorganic salt mixture, further comprising: a diaphragm disposed between the movable element and the expansion material, the diaphragm being at least one of affixed, fastened or adhered to the shoulder portions of the enclosure to constrain movement of the diaphragm; and a plug formed of compliant material disposed between the movable element and the diaphragm.