Swash plate type compressor

Details Swash plate type compressor Swash plate type compressor

1992-07-21

1993-01-26

Smith, Leonard E.

Pumps

Three or more cylinders arranged in parallel, radial, or...

91502, 92 71, 184 617, F04B 116

Patent

active

051818345

ABSTRACT:
A swash plate type compressor is provided with a front and rear cylinder blocks having a crank case connected to a suction port. The cylinder blocks include a plurality of cylinders, and are connected to a front and rear housing sections for covering the cylinders. Each housing section contains a discharge chamber. A drive shaft is rotatabley supported by the cylinder blocks. A swash plate is mounted on the drive shaft and is rotatably disposed within the crank case. Two-head pistons move within their respective cylinders in cooperation with the swash plate. The refrigerant is drawn into, and compressed in each cylinder. Thereafter, it is discharged into the external refrigerating circuit through the front and rear discharge chambers, and a final discharge port. A discharge passage includes a hollow primary passage which is provided within the drive shaft. The primary passage communicates with the front and rear discharge chambers. A groove is provided on an inner wall of the primary passage. As the drive shaft rotates, the groove separates the refrigerant from the lubricating oil mixed with the refrigerant. An oil passage is provided between the discharge chamber and the crank case. The separated oil flows from the discharge chamber to the crank case, through the oil passage, and is used again in lubricating the components of the compressor.

REFERENCES:
patent: 3079869 (1963-03-01), Purcell
patent: 3734647 (1973-05-01), Sparks
patent: 3888604 (1975-06-01), Oshima et al.
patent: 5052898 (1991-10-01), Cook

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