US 11,952,960 B2
Beta-type Stirling machine
Sylvie Begot, Chaux (FR); Steve Djetel-Gothe, Belfort (FR); Hakeem Khirzada, Belfort (FR); François Lanzetta, Belfort (FR); Guillaume Layes, Belfort (FR); and Philippe Nika, Evette Salbert (FR)
Assigned to UNIVERSITE DE FRANCHE-COMT, Besançon (FR)
Appl. No. 17/415,587
Filed by UNIVERSITE DE FRANCHE-COMTE, Besançon (FR)
PCT Filed Dec. 17, 2019, PCT No. PCT/EP2019/085687
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2020/127292, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1873540 (FR), filed on Dec. 20, 2018; and application No. 1873559 (FR), filed on Dec. 20, 2018.
Prior Publication US 2022/0065193 A1, Mar. 3, 2022
Int. Cl. F25B 9/14 (2006.01); F02G 1/044 (2006.01)
CPC F02G 1/044 (2013.01) [F25B 9/14 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A beta-type Stirling machine operating in refrigerating mode, said Stirling machine comprising:
a cold part and a hot part;
a displacer piston comprising a friction zone;
a power piston comprising a friction zone; and
a single liner positioned in the hot part of the Stirling machine operating in refrigerating mode, in which single liner the friction zones of the displacer piston and of the power piston slide, the single liner comprises passage ducts of a gas moving from a compression space volume of the Stirling machine operating in refrigerating mode, to a cooler of the Stirling machine operating in refrigerating mode, or vice versa, said passage ducts passing through the single liner.