Reciprocating electric compressor

Details Reciprocating electric compressor Reciprocating electric compressor

2003-10-20

2009-12-15

Kramer, Devon C (Department: 3746)

Lubrication

Systems

Crank-type machines

C417S368000, C417S415000, C417S902000, C184S006600

Reexamination Certificate

active

07631729

ABSTRACT:
A reciprocating compressor includes a compressing unit placed over a motor unit. A crankshaft, which converts rotating action of the motor unit into reciprocating action of a piston of the compressing unit, has (a) a centrifugal pump provided at a lower section of the crankshaft, and (b) a pair of spiral pumps that communicate with the centrifugal pump and have leading grooves running in opposite directions to each other. The crankshaft also includes a pair of eccentric paths at its upper section. The eccentric paths open into an enclosed container and communicate with the spiral pumps respectively. This structure allows production of greater force for transferring lubricant oil regardless of the rotating direction of the crankshaft.

REFERENCES:
patent: 4478559 (1984-10-01), Andrione et al.
patent: 4493226 (1985-01-01), Andrione et al.
patent: 5707220 (1998-01-01), Krueger et al.
patent: 5842420 (1998-12-01), Khoo et al.
patent: 6457561 (2002-10-01), Goodnight
patent: 7100743 (2006-09-01), Park et al.
patent: 62-44108 (1987-09-01), None

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