Abstract: A suspension spring mounting arrangement applied to a refrigeration compressor comprising a shell (1) and a block (3) forming, with the stator (4) of an electric motor, a stationary assembly (2) mounted inside the shell (1) by an assembly of helical springs (10), each spring presenting a lower end (11) and an upper end (12), each end (11, 12) being coupled, respectively, to an adjacent part of the shell (1) and the stationary assembly (2), through a support (MS). The support (MS) comprises a base plate (20) incorporating at least two retention tongues (21) obtained from a portion of the base plate (20) which is bent to project outwardly from the plane of the latter, so that the retention tongues (21) are tightly fitted in the interior of one of the ends (11, 12) of an adjacent helical spring (10).

Abstract: An oil pump is applied to a compressor which comprises a shell (1) inferiorly defining an oil reservoir (3) and carrying: a cylinder block (2) in which is journalled a crankshaft (4) carrying a pump body of the oil pump, said pump body (11) having a lower end (lib) immersed in the oil (3) and comprising: at least one collecting wall portion (12) eccentric in relation to the axis of rotation of the crankshaft (4) and which is deformed to present at least one open step (13) disposed in a plane secant to a cross section of the pump body (11) in the region of said collecting wall portion (12) and defining an opening (13a) for admitting oil to the interior of the pump body (11); and an inner impeller wall portion (14) defining a deflector transversal to the direction of admission of the oil through the open step (13) and which, with the rotation of the pump body (11), impels said oil axially and ascendingly.

Abstract: The suspension spring mounting arrangement is applied to a refrigeration compressor comprising a shell (1) and a block (3) forming, with the stator (4) of an electric motor, a stationary assembly (2) mounted inside the shell (1) by means of an assembly of helical springs (10), each spring presenting a lower end (11) and an upper end (12), each said end (11, 12) being coupled, respectively, to an adjacent part of shell (1) and stationary assembly (2), through a support means (MS). The support means (MS) comprises a base plate (20) incorporating at least two retention tongues (21) obtained from a portion of said base plate (20) which is bent to project outwardly from the plane of the latter, so that said retention tongues (21) are tightly fitted in the interior of one of the ends (11, 12) of an adjacent helical spring (10).

Abstract: An oil pump is applied to a compressor which comprises a shell (1) inferiorly defining an oil reservoir (3) and carrying: a cylinder block (2) in which is journalled a crankshaft (4) carrying a pump body of the oil pump, said pump body (11) having a lower end (lib) immersed in the oil (3) and comprising: at least one collecting wall portion (12) eccentric in relation to the axis of rotation of the crankshaft (4) and which is deformed to present at least one open step (13) disposed in a plane secant to a cross section of the pump body (11) in the region of said collecting wall portion (12) and defining an opening (13a) for admitting oil to the interior of the pump body (11); and an inner impeller wall portion (14) defining a deflector transversal to the direction of admission of the oil through the open step (13) and which, with the rotation of the pump body (11), impels said oil axially and ascendingly.

Abstract: A mounting arrangement for a hermetic compressor, comprising a shell (10) formed of a metallic plate and incorporating tubular projections (12) with the upper end (12a) opened to the inside of the shell (10) and with the lower end (12b) closed, fitted and tightly retained, by mechanical deformation of the parts, inside a drawn recess (22) of a respective basic plate (20) to be affixed under the shell (10).

Abstract: A mounting arrangement for a hermetic compressor, comprising a shell (10) formed of a metallic plate and incorporating tubular projections (12) with the upper end (12a) opened to the inside of the shell (10) and with the lower end (12b) closed, fitted and tightly retained, by mechanical deformation of the parts, inside a drawn recess (22) of a respective basic plate (20) to be affixed under the shell (10).