Patent ID: 9382873
Filing Date: 2016-07-05
CPC Classification: F02G

Claim Text:
1. A Stirling engine with regenerator internal to the displacer piston and integral geometry for heat transfer and fluid flow comprises: a cylindrical housing, the cylindrical housing comprises a piston chamber; a working fluid being contained within the cylindrical housing; a central axis centrally traversing through the cylindrical housing; a displacer piston; a heater head; a cooling bridge; a plurality of regenerator cores; the displacer piston comprises a plurality of cavities; the heater head comprises a plurality of heater fin protrusions; the cooling bridge comprises a plurality of tubular cooler fin protrusions; the plurality of cavities being arranged in a specific cross sectional geometry; the plurality of heater fin protrusions being arranged to match the specific cross sectional geometry; the plurality of tubular cooler fin protrusions being arranged to match the specific cross sectional geometry; the plurality of regenerator cores being centrally positioned within the plurality of cavities; the cooling bridge is cooled by a circulatory fluid flow; coolant fluid; the cylindrical housing further comprises an annular coolant chamber and a working fluid chamber; the cooling bridge being positioned between the piston chamber and the working fluid chamber; the cooling bridge further comprises a first circular plate and a second circular plate; the first circular plate and the second circular plate being concentrically positioned with the cylindrical housing; the first circular plate and the second circular plate being spaced apart from each other along the central axis; a cooling space being all empty space enclosed between the first circular plate and the second circular plate; the plurality of tubular cooling protrusions traversing through the first circular plate and the second circular plate, the working fluid chamber being in fluid communication with the piston chamber through the plurality of tubular cooling protrusions; the annular coolant chamber being concentrically positioned around the working fluid chamber; the annular coolant chamber comprises a coolant ingress and a coolant egress; and the coolant ingress being in fluid communication with the coolant egress through the cooling space.