Double-yoke balanced compressor

Details Double-yoke balanced compressor Double-yoke balanced compressor

1980-01-22

1981-02-03

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

417415, F25B 900

Patent

active

042480507

ABSTRACT:
A double-yoke balanced compressor for a cryogenic cooler that has only lir motion imparted to balanced piston and cylinder masses. A piston yoke is driven in the linear stroke direction by a piston axially offset crankshaft cam and a cylinder yoke is driven linearly by a cylinder axially offset crankshaft cam that is exactly offset 180.degree. from the other cam. A large circular bushing in the compressor housing covers the entire outer cylinder head during linear operation to prevent blow by and to guide the cylinder linearly. The lower portion of the piston and cylinder connecting rods fit into linear guides that are further comprised of low molecular weight gas filled cavities to provide additional air bearing smoothness to the linear motion of the piston and cylinder.

REFERENCES:
patent: 3574998 (1971-04-01), Bredow
patent: 3673809 (1972-07-01), Bamberg
patent: 4092829 (1978-06-01), Durenec

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