Whirlpool S.a.

Fabiano Domingos Silva

Adilson Luiz Manke

Fabio Henrique Klein

Andrea Lopes

Gelson Longo

Fernando Antonio Ribas, Jr

Luis Fabiano Jovita

Emilio Rodrigues Hülse

Emílio Rodrigues Hülse

Fernando Antonio Ribas Junior

The arrangement is applied to a compressor which comprises: a crankcase, carrying a cylinder provided with a lateral slot and in which is housed a piston provided with two radial holes and with an eccentric axial hole; a connecting rod connected to a crankshaft driven by an electric motor and having a smaller eye mounted in the piston; and a wrist pin having a first end turned to the bearing hub of the crankcase, a second end turned to the lateral slot of the cylinder and a diametrical hole, adjacent to the second end in which is provided an engaging means, for the axial and rotational coupling of a tool for mounting and indexing the wrist pin, in the interior of the piston, in a position in which the diametrical hole is axially aligned with the eccentric axial hole, so as to allow an elastic pin to be introduced in said diametrical hole and in said eccentric axial hole.

Mounting arrangement for a piston-connecting rod assembly in a refrigeration compressor

The fixation arrangement of the present invention is applied to a compressor of the type which comprises a shell () inferiorly defining an oil sump () and housing: a crankshaft () journalled in a cylinder block () and carrying a rotor () formed by a stack of annular laminations; and an oil pump () comprising a tubular sleeve (), which is superiorly mounted to the rotor () and inferiorly immersed in the oil sump (), and a pump shaft (). The fixation arrangement comprises at least one retention element () radially and axially locked around the tubular sleeve () and having a radially outer locking portion (), which is seated and radially forced against a respective confronting circumferential extension () defined between two consecutive annular laminations, in order to axially lock the tubular sleeve () to the rotor ().

Fixation arrangement for an oil pump in a refrigeration compressor

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Fabiano Domingos Silva