Whirlpool S.a.

Empresa Brasileira De Compressores S.a. - Embraco

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

Nidec Global Appliance Brasil Ltda.

Fabian Fagotti

Dietmar Erich Bernhard Lilie

Emerson Moreira

Gustavo Cardoso Weber

Milton Wetzel Pereira

Ricardo Alexandre Maciel

Dietmar E Lilie

Marcio Luiz Todescat

Tadeu Tonheiro Rodrigues

Raul Bosco, Jr

Ricardo Dagnoluzzo Brancher

Andre Ricardo Popinhak

Marcos Giovani Dropa De Bortoli

Edson Corr&ecirc;a Miguel

Marcio Silveira

M&aacute;rcio Luiz Todescat

The present invention relates to the technological field of acoustic filters applied to hermetic compressors. Problem to be solved: In hermetic compressors applied in cooling system, the work fluid sucked by the compression mechanism is hotter than the work fluid coming from the evaporator, and it is known that greater the temperature of this fluid, smaller is the efficiency of the compressor. Resolution of the problem: It is revealed a suction acoustic filter and a suction line including this acoustic filter capable of guarantee that the compression mechanism works mainly with the work fluid coming from the evaporator, which is colder than the work fluid accumulated inside the environment defined by the hermetic housing of compressor.

Suction acoustic filter and suction line including suction acoustic filter

The present relation relates to the technological field of compressors. Problem to be solved: The current reciprocating compressors valves arrangements includes valves whose flexion area suffer from direct interference of the body disposed immediately over said valve. Such feature, besides damaging de valve movement, further causes wear phenomena on the flexion areas of the valve, which can result in critical fault of the valve and consequently of the compressor. Resolution of the problem: It is revealed a valve arrange whose end valve capable of moving includes a flexion area previously defined and intentionally misaligned with any contact area of the body immediately disposed over the valve.

Reciprocating compressor valves arrangement

The present invention refers to a noise muffler for refrigeration compressors capable of dampening noise generated by the intermittent flow of the compressor and at the same time a muffler that reduces the loss of load in the refrigeration system. Accordingly, a noise muffler for a refrigeration compressor () is described, the muffler () including at least one suction chamber (), the suction chamber () including at least one flow entry channel (), the suction chamber () including at least one flow exit channel (), the suction chamber () including at least one directional duct (), the directional duct () including at least one first end (), the directional duct () including at least one second end (), the directional duct () including at least one flow control means (), the first end () including an area substantially greater than the second end (), the first end () being associated to the flow entry channel (), the second end () being associated to the flow exit channel (), the directional duct () being capable of directing a preferred flow () received at the first end () to the second end (), the flow control means () being capable of offering reduced resistance to the passage of the preferred flow () and being capable of offering resistance in the opposite direction to the passage of the preferred flow ().

Noise muffler for compressor and compressor

The suction arrangement of the present invention is for a hermetic compressor of the type which includes a hermetic shell; a cylinder block defining, in a single piece, a shell portion and a compression cylinder having an end opened to the exterior of the hermetic shell and closed by a valve plate; a head affixed to the cylinder block onto the valve plate so as to define, with the latter, at least one suction chamber receiving refrigerant gas from a gas inlet pipe external to the hermetic shell. The suction arrangement of the present invention comprises a gas inlet duct defined through the shell portion and through the valve plate and having an outer end hermetically coupled to the gas inlet pipe and an inner end opened to the suction chamber.

Suction arrangement for a hermetic refrigeration compressor

A hermetic compressor, comprises: a hermetic shell (); a cylinder block () defining, a shell portion (Ia) and a compression cylinder () having an end () opened to the exterior of the hermetic shell () and closed by a valve plate (); a head () affixed to the cylinder block (), over the valve plate () so as to define, with the latter, at least one discharge chamber (). The cylinder block () incorporates a tubular projection () surrounding the valve plate () and at least part of the head (). An outer cover () is hermetically affixed to the tubular projection () for defining therewith a discharge plenum () in fluid communication with the discharge chamber (), the tubular projection () or the outer cover () being provided with a refrigerant gas outlet () opened to the exterior of the hermetic shell ().

Constructive arrangement for a hermetic refrigeration compressor

A discharge system for a compressor which includes a first plurality of discharge chambers connected to provide a serial discharge from the compression chamber of the compressor to an outlet and a second set of discharge chambers providing a parallel discharge path from the compression chamber of the compressor to the outlet upon the pressure in the compression chamber exceeding a predetermined value.

Discharge system for compressors

A suction system for a refrigerator compressor includes a suction muffler with an outlet tube mounted to a valve plate and a cylinder head having a reinforced portion in the area of the valve plate and the outlet tube.

Suction system for a refrigeration compressor

Compressor

A suction muffler for a hermetic compressor, comprising a hollow body ( ) provided with gas inlet and gas outlet nozzles ( ) and, internally, with a plurality of chambers (C , C , C ) and a duct (T) having an end connected with and opened to the gas inlet nozzle ( ), median windows ( ), which are longitudinally spaced from each other and opened to respective chambers (C , C ), and an opposite end opened to a last chamber (C ), which is maintained opened to the gas outlet nozzle ( ). The last chamber (C ) is partially divided in two volumes with different shapes and dimensions, the opposite end of the duct (T) projecting to the inside of the last chamber (C ), both the gas outlet nozzle ( ) and the opposite end of the duct (T) being opened to the larger volume of the last chamber (C ).

Suction muffler for a hermetic compressor

A hermetically sealed shell (,) contains a reciprocating hermetic compressor that has a suction inlet tube (,) for admitting gas into the shell; a suction orifice (,) which is provided at the head of a cylinder (,) disposed inside the shell (,) and which is in fluid communication with the suction inlet tube (,). A suction duct (,) has a first end (,) hermetically coupled to the suction inlet tube (,) and a second end (,) hermetically coupled to the compressor suction orifice inlet (,) and conducts low pressure gas from the suction inlet tube (,) directly to the suction orifice (,) inside of shell (,), the suction duct (,) providing thermal and acoustic energy insulation to the gas being drawn into the compressor and is dimensioned to produce a load loss reduction in the gas flow from the suction inlet tube (,) to the suction orifice (,).

Growing community of inventors

Joinville-SC, Brazil

Fabian Fagotti