Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1990-05-29
1991-10-01
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310338, 310339, 322 2R, H01L 7108
Patent
active
050536729
ABSTRACT:
An energy converter includes a vibrating structure formed of metallic or ceramic material and including a spherical member having a spherical opening located concentrically therein. The vibrating structure is cooled by liquid hydrogen and the spherical opening contains a spherical outer member formed of ceramic and containing piezoelectric crystals embedded therein. An intermediate spherical member formed of an insulator material is positioned concentrically within the outer spherical member, and an inner sectional spherical member is positioned within the intermediate spherical member. The sectional spherical member is comprised of a plurality of laminated sections, each including inner, outer, and intermediate elements. Suitable conductors connect the innere and outer elements of the sectional spherical member with a source of electrical current. A spherical core member is positioned interiorly of the sectional spherical member and is formed of a non-fusion material (does not heat up on impact). When the sectional spherical member is energized by an electrical current, the respective sections of the sectional spherical member vibrate, producing radially directed pressure waves that cause vibrations of the intermediate and outer spherical members of the spherical vibrating structure. Inwardly directed radially propagated pressure waves are transmitted from the vibrating structure to the core member, which undergoes a slightly implosive effect to intensify outwardly directed radial pressure waves. The outwardly directed radial pressure waves produce alternate expansion and compression of the piezoelectric crystals in the outer spherical member to thereby produce electrical current for use as available energy.
REFERENCES:
patent: 3317762 (1967-05-01), Corwin
patent: 3325743 (1967-06-01), Blum
patent: 3463942 (1969-08-01), Mellon
Budd Mark O.
Dougherty Thomas M.
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