|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||62/6 ; 60/520|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 22 인용 특허 : 0|
Free piston Stirling coolers and engines are improved by a variable power transmitting linkage connecting the displacer to the piston and coupling more power from the displacer to the piston while piston displacement exceeds a selected limit than coupled while piston displacement is less than the selected limit. Adjustment of the position of the limit is used to control stroke amplitude, power output or thermal pumping rate.
A method for controlling the amplitude of oscillation of a free piston, Stirling cycle, thermomechanical transducer having a displacer and a piston which reciprocate in periodic cycles, the method comprising: coupling more power from the displacer to the power piston when the piston displacement exceeds a selected displacement limit which is spaced from a central position of the piston\s reciprocation path and coupling less power from the displacer to the power piston when the piston displacement is less than the selected limit.