Fluid compressor

Details Fluid compressor Fluid compressor

1990-01-30

1991-06-25

Smith, Leonard E.

Rotary expansible chamber devices

Helical working member

418172, 418 551, 417356, F04B 2900

Patent

active

050262645

ABSTRACT:
A fluid compressor includes a cylinder and a columnar rotary rod. The rod is arranged in the cylinder so as to extend in the axial direction thereof and be eccentric thereto, and orbitable relative to the cylinder without rotation with respect to the cylinder while part of the rod is in contact with the inner circumferential surface of the cylinder. A spiral groove is formed on the outer circumference of the rod and a spiral blade is fitted in the groove. The space between the outer circumference surface of the rod and the inner circumference surface of the cylinder is divided by the blade into a plurality of operating chambers. The groove has an overall length larger than that of the blade by a predetermined length so that the blade is displaceable relative to the rod in the radial and circumferential directions of the rod without sliding on the inner circumferential of the cylinder.

REFERENCES:
patent: 2401189 (1946-05-01), Quiroz
patent: 4871304 (1989-10-01), Iida et al.
patent: 4875842 (1989-10-01), Iida et al.

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