Linearverdichter für einen Kryokühler

Details

Veröffentlichungs-Nr.

EP3699426

Aktenzeichen

EP20158111

Anmeldetag

19. Februar 2020

Veröffentlichung

22. September 2021

Erteilung

22. September 2021

Rechtsraum

EP

IPC

F04B35/04F25B31/02F25B9/14H02K1/28H02K1/34H02K7/14H02K33/16H02K41/03

Abstract

A linear compressor (12) for a cryocooler (10) includes a piston (12a) that extends in an axial direction, a linear actuator (12b) that drives the piston (12a) in the axial direction, a housing (12c) that accommodates the piston (12a) and the linear actuator (12b) and supports the piston (12a) to be oscillatable in the axial direction. The linear actuator (12b) includes an outer yoke (26) that is fixed to the housing (12c), an inner yoke (28) that is disposed on a radially inner side of the outer yoke (26) and is fixed to the housing (12c), a magnet holder (30) that includes a magnet receiving recessed part (30a) positioned between the inner yoke (28) and the outer yoke (26) in a radial direction and is fixed to the piston (12a), and a permanent magnet (32) that is housed in the magnet receiving recessed part (30a) and is fixed to the magnet holder (30) without using an adhesive.

Anmelder

Firma

Sumitomo Heavy Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete