Abstract: The suspension system is applied in a compressor, presenting a shell in which interior is horizontally suspended a motor-compressor assembly having opposite ends that are spaced from the shell by an axial spacing. Mounting elements are each attached to an end of the motor-compressor assembly and suspension springs are mounted to the shell and to each respective mounting element. The suspension system comprises stop elements attached to the shell and having a free end portion disposed between a respective end of the motor-compressor assembly and the adjacent suspension spring. A first distance defined between the stop element and the adjacent end of the motor-compressor assembly is smaller than the axial spacing and smaller than a second distance defined between the stop element and an adjacent suspension spring.

Abstract: The fixation arrangement of the present invention is applied to a compressor of the type which comprises a shell (1) inferiorly defining an oil sump (3) and housing: a crankshaft (4) journalled in a cylinder block (2) and carrying a rotor (6) formed by a stack of annular laminations; and an oil pump (10) comprising a tubular sleeve (20), which is superiorly mounted to the rotor (6) and inferiorly immersed in the oil sump (3), and a pump shaft (30). The fixation arrangement comprises at least one retention element (40) radially and axially locked around the tubular sleeve (20) and having a radially outer locking portion (41), which is seated and radially forced against a respective confronting circumferential extension (6c) defined between two consecutive annular laminations, in order to axially lock the tubular sleeve (20) to the rotor (6).

Abstract: The arrangement and the process are applied in a compressor comprising: a cylinder block (2); a movable assembly including a piston (5); and a resonant spring (11) having a first end portion (11a), affixed to the cylinder block (2) by a first fixation assembly (20), and a second end portion (11b) affixed to the movable assembly by a second fixation assembly (30). The first or the second fixation assembly (20, 30) comprises a bearing portion (21, 31) attached around one of the end portions (11a, 11b) of the resonant spring (11) and having a fixation face (21b, 31b), and a bearing receiving portion (22, 32), previously attached to the cylinder block (2) or to the movable assembly and having a junction face (22b, 32b), the fixation and junction faces (21b, 31b, 22b, 32b) being welded together, securing the resonant spring (11) to the movable assembly and to the cylinder block (2), maintaining the movable assembly concentric to the cylinder (2a) and in a predetermined axial positioning.

Abstract: A sensor assembly for measuring movements of a fluid pump driven by an electric motor, the electric motor connectable to a feed voltage, the sensor assembly comprising an accelerometer electrically connected to a bias circuit, the latter comprising a feed terminal electrically connectable to the feed voltage of the motor and a signal terminal electrically connectable to an external measuring terminal. A fluid pump is also described, comprising a cylinder, a piston, a housing comprising a hermetic terminal and hermetically enclosing the cylinder and the piston, thus forming a hermetic assembly, the piston driven by an electric motor, the electric motor connected to an electric voltage by a pair of voltage terminals associated to the hermetic terminal, the fluid pump comprising a sensor assembly associated to the cylinder comprising a feed terminal connected to one of the voltage terminals and a signal terminal electrically connected to an external measuring circuit.

Abstract: The present invention discloses a sealing system for a refrigerator and, more particularly, a sealing system located between the doors of a refrigerator and its acclimatized chambers and of the kind that comprises a gasket to be inserted in a receiving channel existing also between the doors of a refrigerator and its acclimatized chambers. The sealing system for refrigerator herein reported consists of at least one gasket comprising a tubular body formed by at least one attaching end and by at least one sealing body; at least one groove defined in at least one movable door or at least one fixed cabinet; and by at least one rib defined in at least one movable door or at least one fixed cabinet.

Abstract: The present invention relates to a system and to a method of controlling a fluid pump, as well as to a linear compressor and a cooler configured to calibrate the respective functioning at the time of the first use or in cases of problems caused by electric or mechanical failures. According to the teachings of the present invention, the fluid pump is provided with a piston-position sensing assembly, the electronic controller monitoring the piston displacement within the respective cylinder by detecting an impact signal. The impact signal is transmitted by the sensing assembly upon occurrence of an impact of the piston with the stroke end, the electronic controller successively incrementing the piston displacement stroke upon a trigger signal as far as the occurrence of the impact to store a maximum value of piston displacement.

Abstract: The present invention refers to a gas burner secondary air feed, comprising an air inlet (2) in contact with ambient air; an air exit (3) near the base of flames 9 of a burner (7); an elongated duct (1) connecting said air inlet (2) to said air exit (3), said duct being disposed beneath a cooking table (8) and capable of supplying an air flow from the air inlet (2) towards said air exit (3) by convection generated by flames (9) of the burner (7). Said duct (1) comprises a straight section (6) substantially parallel to the flat portion of said cooling table (8) and an upward section (5) directed to flames (9) of the burner (7), said straight section (6) connected to the upward section (5) by means of an inflection region (4).

Abstract: The present invention relates to a motor ice dispenser for refrigerators comprising an electric motor (3) programmed to have two operating velocities during the opening of a door (1), for the release of a piece of ice (2) for the costumer. In the beginning of the door (1) opening, the electric motor (3) operates at a low speed and high torque, and, at the end of the door (1) opening, the electric motor (3) operates at a high speed and low torque.

Abstract: The present invention relates to a system and method of controlling a linear compressor (10), which is capable of fine-tuning the compressor when necessary, throughout the operating period of the compressor, so that said compressor operates at maximum capacity, wherein the piston (1) achieves a maximum displacement amplitude, closely approaching the cylinder head (2) without colliding with it. The system and the method according to the invention are also intended to control the operation of the linear compressor throughout its operating period, also seeking to maximize its performance and to reduce or optimize its power consumption. According to the present invention, the fine-tuning and control of the operation of the linear compressor are carried out by means of the combination of a technique for controlling a compressor without a sensor, and a technique for controlling the compressor with the aid of a sensor.

Abstract: A mechanism, and refrigeration appliance containing a mechanism, for providing displacement of a shelf of a refrigeration appliance, which has at least one refrigeratable cabinet with a base and two side walls substantially perpendicular to the base. The mechanism has at least one supporting device associated to the side wall of the refrigeratable cabinet by a side bar having a longitudinal portion that is substantially parallel to the base. The association between the supporting device and the side bar is able to provide mechanical support to the shelf. The mechanism also comprises a pivoting arm provided with at least one first end which is connected articulatedly to the shelf and a second end connected articulatedly to the supporting device, which associates the shelf to the supporting device. The pivoting arm is able to move angularly so as to allow the displacement of the shelf in relation to the supporting device.

Abstract: Cooling system for reciprocating compressors comprising an atomizing nozzle (1) that supplies an atomized lubricating fluid inside the compressor cylinder (2), a heat exchanger (6) intended for cooling the lubricating fluid to be atomized at the nozzle (1), a fluid separator (5) for separating a mixture of cooling fluid and lubricating fluid and directing the lubricating fluid back from the system, and a blocking element (7) arranged between the atomizing nozzle (1) and the heat exchanger (6) to prevent the buildup of lubricating fluid in the cylinder. Reciprocating compressor having the cooling system as described.

Abstract: The compressor of the invention includes a block (B) defining a shaft hub having a first and a second end portion and housing an eccentric shaft having a median portion radially journalled in the shaft hub, and a free end portion carrying the rotor of an electric motor. The first and the second end portions of the shaft hub define radial bearings for the shaft and a support member is formed by a coupling portion, affixed to the free end portion of the shaft, and by a mounting portion, projecting axially and radially from the coupling portion, externally to the shaft hub and around the median portion of the shaft. The rotor is affixed to the mounting portion, concentrically to the eccentric shaft and surrounding the shaft hub.

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: The present invention relates to a thermal isolation, suitable for isolating the gas discharge tube (13) of a refrigerating compressor (1), where the discharge tube (13) is arranged inside an isolating tube (14), forming at least a confined space between said tubes, the novelty basically consisting in that the isolating tube (14) comprises covers (15, 17) spaced apart, the cross section of the isolating tube (14) being formed by joining together the cross sections of the spaced apart covers (15, 17). In the preferred embodiment of the invention, the isolating tube (14) comprises multiple spacers, preferably annular spacers (16), arranged around the gas discharge tube (13 and the isolating tube (14), the isolating tube (14) consisting of a number tube portions (20, 26) joined together along the extension of the gas discharge tube (13). The invention also relates to a process for assembling the thermal isolation in the gas discharge tube.

Abstract: The present invention refers to a stator blade (10) for an electric motor that comprises a central hole (20), a plurality of grooves (30) spaced around the hole (20), and a plurality of teeth (50) formed between two consecutive grooves (30). The corners (35a, 35b, 35c, 35d) formed between the edges of the groove (30e and 30a, 30e and 30b, 30b and 30d, and 30c and 30a) the rounding radiuses and the angles formed by these edges being acute angles. The teeth (50) present two side edges slanted together (50a, 50b) defined by the side edges (30b and 30a) of two consecutive grooves.

Abstract: A hermetic compressor with internal thermal insulation, comprising: a compression cylinder having one end closed by a valve plate provided with a discharge orifice and having a front face against which is mounted a cylinder cover internally defining a discharge chamber; and a spacing duct having one inlet end hermetically mounted to the front face of the valve plate and open to the discharge orifice and an outlet end hermetically mounted to the cylinder cover and open to the interior of the discharge chamber, said spacing duct defining a hermetic fluid communication between the interior of the compression cylinder and the discharge chamber maintaining the cylinder cover spaced from the valve plate and defining, with the latter, an annular plenum around said spacing duct.

Abstract: The invention refers to a linear compressor, comprising: a shell (20); a cylinder (30) affixed to the shell (20) and defining a compression chamber (C); a piston (40) to be displaced in reciprocating movement in the interior of the compression chamber (C) during the operation of the compressor; a linear electric motor (50) mounted to the shell (20); and an actuating means (60) operatively coupling the piston (40) to the linear electric motor (50), in order to make the latter displace the piston (40) in a reciprocating movement in the interior of the compression chamber (C), the actuating means (60) being coupled to the piston (40) by an elastic means (70), so that the actuating means (60) and the piston (40) be displaced in phase opposition during the operation of the compressor.

Abstract: A clamp for mounting a tubular connector in a refrigeration circuit includes two semi-annular portions having end sections with each of the end sections including surfaces which extend radially outwardly from the annular portions of the clamp and a lock for locking the ends of the semi-annular portions together around the end of the tubular connector with the radially extending end surfaces of the end sections in abutting engagement.

Abstract: The block (B) comprises a piston hub having a horizontal axis (X) and housing a piston and a shaft hub housing a crankshaft and having a vertical axis (Y) intersecting the horizontal axis (X). The block (B) incorporates a connecting portion having a first end attached to a region of the piston hub disposed on a side of the horizontal axis (X) opposite to that turned to the shaft hub, and a second end attached to an adjacent end portion of the shaft hub. The connecting portion is elastically deformable by a resulting bending moment (MF) generated: by a first compression derived force (F1) actuating on the second end of the connecting portion; and by a second compression derived force (F2) applied to a free end portion of the shaft hub and which tends to provoke an angular displacement of the vertical axis (Y) of the shaft hub in the direction of the first compression derived force (F1).

Abstract: Oil pump for hermetic refrigerating compressor comprising a tubular sleeve having an upper portion affixed to at least one of the parts of crankshaft and rotor, and a lower portion having a lower end immersed in the lubricant oil, said tubular sleeve being provided with an inner surface presenting, along at least part of its longitudinal extension, at least one helical groove upwardly extending from the lower end; and a pump body disposed inside the tubular sleeve and defining, with the adjacent helical groove of the tubular sleeve, a lubricant oil ascending channel, said pump body presenting a lower end portion mounted to one of the parts of shell, cylinder block and stator, so as to be freely displaced within the tubular sleeve, in radial directions orthogonal to the crankshaft and rotatively locked in relation to the rotor.