초록 ▼

A pulse tube refrigerator includes a compressor, an after-cooler, a regenerating unit, a pulse tube, an inertance tube, a reservoir, and a vibration absorbing unit which are structured such that vibrations during motor operation are minimized. The vibration absorbing unit is attached with the compre

A pulse tube refrigerator includes a compressor, an after-cooler, a regenerating unit, a pulse tube, an inertance tube, a reservoir, and a vibration absorbing unit which are structured such that vibrations during motor operation are minimized. The vibration absorbing unit is attached with the compressor and is positioned within the reservoir, and has a fixed shaft having one end attached with a housing of the compressor, a plurality of spring plates attached to another end of the fixed shaft, and a mass body attached with the spring plates.

대표청구항 ▼

1. A pulse tube refrigerator, comprising:a compressor having a sealed casing with a cylinder and an opening at one end thereof, a motor mounted in the sealed casing, and a piston operatively attached with the motor to compress and expand an operating gas via the opening; an after-cooler connected wi

1. A pulse tube refrigerator, comprising:a compressor having a sealed casing with a cylinder and an opening at one end thereof, a motor mounted in the sealed casing, and a piston operatively attached with the motor to compress and expand an operating gas via the opening; an after-cooler connected with the compressor in order to cool the operating gas discharged from the compressor; a regenerating unit connected with the after-cooler in order to store and release latent heat of the operating gas reciprocating between the compressor and a reservoir formed at an outer surface of the sealed casing and a cover integrally attached to the sealed casing; a pulse tube connected with the regenerating unit, the pulse tube having a cryogenic portion formed thereon; an inertance tube connected with the pulse tube in order to accelerate a forming of the cryogenic portion and connected with the cover; and a vibration absorbing unit which is placed inside of the reservoir and is fixedly attached to the sealed casing in order to reduce vibration occurring due to the operation of the motor.