The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2008
Filed:
May. 29, 2003
Applicants:
Jens Erik Nissen, Graasten, DK;
Frank Holm Iversen, Padborg, DK;
Inventors:
Jens Erik Nissen, Graasten, DK;
Frank Holm Iversen, Padborg, DK;
Assignee:
Danfoss Compressors GmbH, Flensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 31/10 (2006.01);
U.S. Cl.
CPC ...
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.