Micro heat engine and method of manufacturing

Details Micro heat engine and method of manufacturing Micro heat engine and method of manufacturing

B - Operations, Transporting

81

B

B81B 1/00 (2006.01) B81C 1/00 (2006.01)

Patent

CA 2595473

The present invention relates generally to micro heat engines (MHEs) and methods of manufacture. More particularly, the present invention relates to an MHE including a substrate having a sealed microchannel for operatively containing a liquid droplet within the microchannel and a thermal bridge for providing a heat source or heat sink to the microchannel. The MHE also includes a piezoelectric sensor responsive to a pressure change within the microchannel to induce voltage across the piezoelectric sensor and a power output.

La présente invention se rapporte généralement à des micromoteurs thermiques (MHE) et à des procédés de fabrication. Plus particulièrement, la présente invention se rapporte à un micromoteur MHE incluant un substrat comportant un microcanal étanche destiné à contenir fonctionnellement une gouttelette de liquide à l'intérieur du microcanal et un pont thermique destiné à fournir une source de chaleur ou un dissipateur de chaleur au microcanal. Le micromoteur MHE inclut également un capteur piézoélectrique sensible à une modification de pression à l'intérieur du microcanal afin d'induire une tension aux bornes du capteur piézoélectrique et une sortie de puissance.

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