Empresa Brasileira De Compressores S.a. - Embraco

Whirlpool S.a.

Embraco Europe S.r.l.

Whirpool S.a.

Ingwald Vollrath

Dietmar Erich Bernhard Lilie

Egidio Berwanger

Rinaldo Puff

Paulo Rogerio Carrara Couto

Marcio Luiz Todescat

Celso Kenzo Takemori

Alisson Luiz Roman

Rivio Arturo Ramirez

Vittorio Bianchi

Wilfred Roettger

Edmar Baars

S&eacute;rgio Luiz Maganhoto

Marek Zgliczynski

Fernando Christoffel

Jose Fernandes

Vincent Gurubatham

Roberto Giraudo

Lilie Dietmar

Humberto Ferreira Da Câmara

Roberto Horn Pereira

Alberto Bruno Feldmann

Claudio Roberto Hille

Marcos Giovani Dropa De Bortoli

Paulo Rogério Carrara Couto

Maikol Feuser

Egídio Berwanger

Humberto Ferreira Da Cámara

Cláudio Roberto Hille

The present invention refers to a linear compressor based on resonant oscillating mechanism, which is comprised by at least one resonant spring () at least one linear motor () composed of at least one fixed portion () and at least one movable portion (), at least one piston () operatively associated with at least one rod () and at least one cylinder (), all these elements being disposed within a housing (), and the movable portion () of the linear motor () is physically associated with one end of the resonance spring () through a first coupling assembly and the rod () is physically associated with the opposite end of the resonance spring () through a second coupling assembly. The linear motor (), the cylinder () and the piston () are physically arranged within a same end of the housing (). The rod () is disposed within the resonant spring (). The piston-cylinder assembly () is capable of acting at the distal end to the coupling end between the rod () to the resonant spring ().

Linear compressor based on resonant oscillating mechanism

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.

Mounting arrangement for an eccentric shaft in a refrigeration compressor

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 (F) actuating on the second end of the connecting portion; and by a second compression derived force (F) 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 (F).

Block for a reciprocating refrigeration compressor

A piston of the type comprising a tubular skirt portion which is closed, next to an end edge, by a head portion, the skirt portion being defined by a respective tube extension and presenting an end edge region configured to affix a head portion formed in a separate piece and having a peripheral contour internal to an axial projection of the outer contour of the skirt portion.

Piston for a refrigeration compressor

A system for actuation in an admission valve of a gas compressor including an admission valve being configured to allow the input of gas inside the cylinder upon the axial movement of the piston in a first axial direction; and a discharge valve configured to allow the output of gas from inside the cylinder upon the axial movement of the piston in a second axial direction opposite to the first axial direction. The system includes at least one actuator element, operatively associated with the admission valve, capable of keeping the admission valve open when the electric motor stops and starts-up. The actuator element is also capable of allowing opening and closing of the admission valve upon the regime of work of the electric motor. The present development also refers to refrigeration equipment which includes the above-mentioned gas compressor.

Valve actuation system for a suction valve of a gas compressor for refrigeration equipment

A system for closing a suction muffler of a hermetic compressor, the suction muffler including: a hollow base; a cover to be coupled to the hollow base, the parts defined by the hollow base and the cover including respective mutually seatable peripheral flanges, which are shaped to define, jointly, an internal channel extended along at least part of the circumferential extension of the peripheral flanges and which is opened to the opposite external faces of the latter by means of throughbores axially aligned to each other in pairs, each pair of throughbores maintaining a circumferential distance in relation to an adjacent pair of throughbores, the throughbores of each pair and the internal channel being filled with a gasket of injected material, which projects outwardly from the throughbores so as to define an axial lock portion.

Suction muffler for a hermetic compressor

The present invention provides a piston lubrication system for a reciprocating compressor with a linear motor. The piston lubrication system includes an oil sump defined within a hermetic shell, and a cylinder affixed within the hermetic shell. A radial gap is defined by a piston located within the cylinder. A pump supplies oil from the oil sump to the radial gap via the oil supply duct and oil return duct.

Piston lubricating system for a reciprocating compressor with a linear motor

An oil pumping system for a reciprocating hermetic compressor having a shell, which defines in the interior thereof an oil sump; a motor compressor assembly; and an oil pump means. The oil pump means is coupled to the compressor by at least one dampening resilient means. The dampening resilient means is dimension to reduce the amplitude of displacement of the oil pump means to a value that is calculated so that the ratio between the natural frequency of resonance (Wn) of the oil pump means and an operation frequency (W) of the compressor results in a ratio between the displacements of the oil pump means and of the compressor with a value inferior to one.

Oil pumping system for a reciprocating hermetic compressor

A linear electric motor, capable of producing reciprocation of a piston within a cylinder to compress refrigerant gas. The coil of the linear electric motor is mounted to the internal wall of a block that forms the cylinder of the compressor, and a support for the magnets is mounted to an outwardly extending base flange of the piston. The support is formed by a base plate mounted to the base flange with a plurality of 'L' shaped finger plates spaced around and affixed to the base plate, with the edges of the long legs of the finger plates extending radially of the piston's central axis. Arcuated shaped permanent magnet are fitted between the opposite flat sides of each pair of the long legs of the finger plates to form a stable and rigid toroidal shaped magnet assembly positioned between the external wall of the cylinder and the coil.

Linear electric motor

A sealed unit of refrigerant fluid for a refrigeration appliance, comprising a hermetic compressor ( ), a condenser ( ), an evaporator ( ), an expanding device, and conducting tube ( ) of refrigerant fluid, at least one of the parts consisting of the condenser ( ) and the evaporator ( ) being defined as a prismatic body which is at least partially tubular, the component parts of the sealed unit being relatively displaced from an inoperative position of transportation, in which the hermetic compressor ( ) and the conducting tubes ( ) remain contained within a contour defined by the contour of at least one of the parts consisting of the condenser ( ) and the evaporator ( ), to a mounting operative position in a refrigeration appliance.

Sealed unit of refrigerant fluid for a refrigeration appliance

A two-piece connecting rod for a reciprocating compressor and method for assembling a two-piece connecting rod, said connecting rod comprising an engaging portion ( ), which is provided in one of the parts defined by a first connecting rod portion ( ), to be mounted to the eccentric ( ) of a crankshaft ( ) of the compressor, and by a second connecting rod portion ( ), to be articulated to a piston ( ) reciprocating inside a cylinder ( ), which is closed by a cylinder head ( ); and a guide portion ( ) provided in the other of said parts, to be slidingly coupled with the engaging portion ( ); and a fixation means, applied to the coupling region between the engaging portion ( ) and the guide portion ( ), with the first connecting rod portion ( ) being mounted to the eccentric ( ) and with the second connecting rod portion ( ) being mounted to the piston ( ) lodged in the cylinder ( ), in order to lock said portions against relative displacements in a position which results in a predetermined axial distance between the top face of the piston, in the upper dead point condition, and the inner face of the cylinder head ( ) of the cylinder ( ) of the compressor which is being mounted.

Two-piece connecting rod for a reciprocating compressor and method for assembling a two-piece connecting rod

Motor-driven compressor with reduced lateral dimensions

Two-piece connecting rod for a reciprocating hermetic compressor

Piston-articulating pin-connecting rod assembly for reciprocating

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Joinville, Brazil

Ingwald Vollrath