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Title: Vibration absorber for a free piston Stirling engine

Abstract: A free piston Stirling engine has a hermetic vessel containing a displacer piston and a power piston coupled to each other and to the vessel by gas springs. An additional mass is coupled to the vessel by a gas spring which is tuned to the operating frequency of the engine geometrically. The vibration absorber is effective at all engine frequencies because the absorber gas spring follows the engine working gas mean pressure and changes the absorber natural frequency as the engine frequency changes.


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Inventors: Rauch, Jeffrey S. (Schenectady, NY)

Application Number: 06/270610
Filing Date: 1981-06-05
Publication_date: 1983-08-30
Assignee: MECHANICAL TECH INC (US)

Primary Class(es): 60/520 60/517
Other Classes: F02G1/043; F02G1/053; F02G1/00; F02G1/04
US Patent Ref:
4183214January, 1980Beale et al.60/520Spring and resonant system for free-piston Stirling engines
4199945April, 1980Finkelstein60/520Method and device for balanced compounding of Stirling cycle machines
4215548August, 1980Beremand60/520Free-piston regenerative hot gas hydraulic engine

Other Refs:
Primary Examiner: Ostrager, Allen M.
Assistant Examiner: Husar, Stephen F.
Attorney: Claeys, Joseph V.
Trausch III, Arthur N.
Claims: