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:
May. 07, 1991
Filed:
Feb. 02, 1990
Caio Mario Da Costa, Joinville, BR;
Empresa Brasileira de Compressores, Joinville, BR;
Abstract
A lubricating system for a rotary horizontal crankshaft hermetic compressor, including a hermetic shell housing a cylinder block, main bearing and sub bearing which supports one end portion of a crankshaft and an electric motor which supports the other end portion. The shell defines as a lubricating oil sump and receives gas from the cylinder through a discharge orifice. The cylinder block divides the shell into a rear section, housing the electric motor, which section has the outlet end of the gas discharge orifice, and a front section which is in communication with the end of the compressor discharge tube and with the rear shell section through a lower oil passage in the sump. There is a gas duct and a level regulating passage with the gas duct being dimensioned to create a pressure differential between the two sections which is sufficient to elevate the lubricating oil in the front section up to the crankshaft end for lubricating it.