Stabilized free-piston Stirling cycle machine
Patent
·
OSTI ID:5695441
This patent describes a free piston Stirling cycle machine. It comprises: a displacer cylinder having a central cylindrical axis; a displacer located within the displacer cylinder and movably mounted along the axis; an enclosed gas spring; working gas means including an enclosed volume of pressurized working gas directed to opposite axial ends of the displacer for cyclically reciprocating the displacer along its axis in a Stirling cycle mode of operation; counterbalance means mounted for axial motion directly related to that of the displacer, stabilizer means mechanically coupled to the counterbalance means for cyclically constraining reciprocating axial motion of the counterbalance means in a repetitive pattern; and hydrostatic fluid means operatively coupling the counterbalance means to the gas spring for accommodating fluid volumetric displacement due to engine operation, the hydrostatic fluid means also being operably coupling the displacer and counterbalance means for imparting axial movement between them.
- Assignee:
- Stirling Technology Co., Richland, WA (USA)
- Patent Number(s):
- A; US 4967558
- Application Number:
- PPN: US 7-386539
- OSTI ID:
- 5695441
- Country of Publication:
- United States
- Language:
- English
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