Embraco-industria De Compressores E Solucoes Em Refrigeracao, Ltda.

Whirlpool S.a.

Diego Sacomori

Adilson Luiz Manke

Rinaldo Puff

Daniel Lacerda De Andrade

Alexandre De Assis Pereira

Mattias Da Silva Castro

The present invention belongs to the technological field of cooling compressors and, particularly, constructive details of lubricating oil pumps of cooling compressors. Problem to be solved: The current state of the art does not describe any solution of oil pump and construction of rotating shaft capable of achieving the correct lubricating of the moving components that include the compression functional unit of cooling compressor, which operating speed can vary between 700 and 4500 rpm. Solution of the problem: It is disclosed is a variable speed cooling compressor which tubular extension of the oil pump, the inner axial channel of the rotating shaft, the axial channel extension of the rotating shaft and the inner cam channel segment of the rotating axis are all fluidly connected to each other in order to conform a single integrated channel.

Variable speed cooling compressor including lubricating oil pumping system

The present invention belongs to the technological field of the head fastening and its components to the block of a compressor, such as those used in cooling systems of household appliances. The head fastening arrangement of cooling compressor includes a head arranged by the cylinder of the cooling compressor and having a head lid; at least one supporting device also arranged by the cylinder; at least one element of union of the head lid to the supporting device, wherein the element of union is capable of transmitting force that presses the head lid and the supporting device against the cylinder.

Head fastening arrangement of cooling compressor

The compressor comprises: a crankcase () carrying a cylinder () and a bearing hub () having a first and a second end portions () and defining a radial bearing (), in which is housed a crankshaft (); and a connecting rod () coupled to a piston () housed in the cylinder () and having a larger eye () mounted in an eccentric end portion () of the crankshaft (). Each of said end portions () is defined by a bushing extension () affixed in the interior of the bearing hub () and having an end portion () projecting outwards from the bearing hub (), in order to be elastically and radially deformed when pressed by a confronting portion of the crankshaft (), which presents coaxiality deviation in relation to the axis (X) of the radial bearing ().

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Joinville, Brazil

Diego Sacomori