Fluid compressor

Details Fluid compressor Fluid compressor

1991-06-28

1993-02-09

Bertsch, Richard A.

Pumps

Motor driven

Pump within rotary working member

418220, F04C 1816

Patent

active

051849402

ABSTRACT:
A fluid compressor is provided which includes a closed case having a case body with an open end and cover for closing the open end of the case body to house drive compressor sections and therein. The compressor section has a cylinder having an axial line and both ends located on sucking and discharging sides thereof, rotated by the drive section, a rotating body provided with an axial line offset to the axial line and a spiral groove formed on the outer circumference thereof at such a pitch that becomes smaller and smaller as it comes from the sucking side end thereof nearer to the discharging side thereof, and arranged to contact a part of the outer circumference thereof with the inner circumference of the cylinder. The compressor section also includes a spiral blade made of rigid material and arranged in the spiral groove of the rotating body to be freely slidable in the radial direction of the rotating body while keeping its outer circumference closely contacted with the inner circumference of the cylinder to partition a space between the cylinder and the rotating body into plural operating chambers, and a rotation force transmitting system for connecting the cylinder and the rotating body to drive them. The compressor section is supported directly by the closed case through a bearing located on the sucking side of the cylinder. Another bearing located on the discharging side of the cylinder is supported, movable relative to the closed case, by a support plate.

REFERENCES:
patent: 2401189 (1946-05-01), Quiroz
patent: 2953993 (1960-09-01), Strickland
patent: 4871304 (1989-10-01), Iida et al.
patent: 4875842 (1989-10-01), Iida et al.
patent: 4997352 (1991-03-01), Fujiwara et al.
patent: 5026264 (1991-06-01), Morozumi
patent: 5062778 (1991-11-01), Hattori
patent: 5090874 (1992-02-01), Aikawa
patent: 5090875 (1992-02-01), Aikawa

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