Piston compressor, particularly hermetically enclosed...

Details Piston compressor, particularly hermetically enclosed... Piston compressor, particularly hermetically enclosed...

2008-09-09

2008-09-09

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

With lubricating means

Piston has lubricant retaining or conducting means

C092S160000

Reexamination Certificate

active

10448602

ABSTRACT:
The invention concerns a piston compressor, particularly a hermetically enclosed refrigerant compressor, with at least one cylinder a piston reciprocating in said cylinder, the piston being connected with a driving rod via a piston pin and having in its outer jacket surface a circumferential lubrication groove, the piston pin having a longitudinal bore, which is connected with a lubricant source. It is endeavoured to improve the lubrication. For this purpose, the longitudinal bore is open downward in the gravity direction and has a ventilation opening upward.

REFERENCES:
patent: 4189984 (1980-02-01), Tankred et al.
patent: 4478559 (1984-10-01), Andrione et al.
patent: 4794848 (1989-01-01), Melchior
patent: 5118263 (1992-06-01), Fritchman
patent: 5118563 (1992-06-01), Akao
patent: 6457561 (2002-10-01), Goodnight
patent: 6702067 (2004-03-01), Iversen et al.
patent: 2002/0050425 (2002-05-01), Iversen et al.

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