Hermetic compressor comprising a suction acoustic filter

Abstract

The present utility model application refers to a new constructive arrangement introduced in acoustic filter of hermetic compressor, and more particularly, a new constructive arrangement that optimizes the suction flow of the acoustic filter, which is normally arranged within the hermetic housing of the hermetic compressor. The suction acoustic filter (1) is composed by at least one outlet pipe (2), outlet pipe (2) comprising at least two independent suction outlets (21). Each independent suction outlet (21) extending along outlet pipe (2).

Claims

1. A Hermetic compressor comprising: A suction acoustic filter integrated by at least one outlet pipe and characterized by the fact that: The at least one outlet pipe comprises at least two independent suction outlets; each independent suction outlet independently extending along the at least one outlet pipe forming a tubular extension; wherein the tubular extensions include a first vertical section and a second horizontal outlet section; the outlet sections being divided by at least one wall; the tubular extensions of each independent suction outlet are isolated from each other by at least one projection arranged along the at least one outlet pipe; wherein the projection extends from the wall and through the outlet pipe so as to divide the tubular extensions along their entire length.

2. Hermetic compressor comprising the suction acoustic filter according to claim 1, CHARACTERIZED by the fact that at least one of the independent suction outlets is curvilinear.

3. Hermetic compressor comprising the suction acoustic filter according to claim 1, CHARACTERIZED by the fact that at least one of the independent suction outlets is straight.

4. Hermetic compressor comprising the suction acoustic filter according to claim 1, CHARACTERIZED by the fact that the at least one outlet pipe is projected from the top of the suction acoustic filter.

5. Hermetic compressor comprising the suction acoustic filter according to claim 1, CHARACTERIZED by the fact that the tubular extensions have lengths different from each other.

6. Hermetic compressor comprising the suction acoustic filter according to claim 1, CHARACTERIZED by the fact that the tubular extensions have diameters different from each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) This utility model application will be described in detail based on the figures listed below, which:

(2) FIG. 1 illustrates, in simplified form, the inlet pipe of a suction acoustic filter according to the current state of the art; and

(3) FIG. 2 schematically illustrates a preferred embodiment of the constructive arrangement introduced in acoustic filter of hermetic compressor disclosed herein.

DETAILED DESCRIPTION OF THE UTILITY MODEL APPLICATION

(4) According to the objectives of the present utility model application, it was designed an acoustic filter of hermetic compressor whose main purpose is to provide more than one outlet hole in a single main pipe, in order to provide suction flows better distributed compared to that of the state of the art shown in FIG. 1.

(5) FIG. 2, as well as the enlarged detail thereof, illustrates a preferred embodiment of the acoustic filter of hermetic compressor according to the objectives of the present utility model application.

(6) The preferred embodiment illustrates a suction acoustic filter 1 comprised of a two-part body and preferably made of polymeric alloy (engineering plastic). The outlet pipe 2 (discharge of the muffler/suction inlet to the cylinder) and outlet pipe 5 (suction of the muffler) are vertically projected in the upper part of the two-part body.

(7) According to the scope of the present utility model application, whose focus comprises the outlet pipe 2, it is worth to mention that other functional details within the knowledge of the technician skilled on the subject matter are not explained in detail from the present detailed description.

(8) Still referring to FIG. 2, it is noted that the aforementioned outlet pipe 2 comprises two independent suction outlets 21.

(9) Obviously, there could be more than two independent suction outlets 21 in a single outlet pipe 2, and this ratio is preferably defined in accordance with the number of suction valves (not shown) or according to the number of suction holes present in the valve-plate (not shown). Consequently, it can be stated that the preferred embodiment herein detailed is preferably suitable for a hermetic compressor integrated by two suction valves or two suction holes defined in the valve-plate (however, there are two suction ways).

(10) As best illustrated in the enlarged detail of FIG. 2, it is noted that the independent suction outlets 21 are spaced apart by at least one wall 4. The thickness of wall 4, that is, the actual distance between each independent suction outlets 21 is set according to the desired application and design, what is important in this case is the arrangement of said wall to form the two independent outlets.

(11) Each of the independent suction outlets 21 extends independently along the outlet pipe 2, forming a tubular extension 22.

(12) Since there are two independent suction outlets 21, it can be seen that there are two tubular extensions 22, which are isolated from each other by a vertical projection 3 that, starting from wall 4, is arranged along outlet pipe 2, and more particularly, until the final end of said tubular extensions 22.

(13) It is worth mentioning that, optionally, tubular extensions 22 may have lengths and diameters different from each other. This is because the dynamics of the valve is influenced due to the length and diameter of the tubes. These values can be adjusted to obtain the best performance with respect to the thermodynamic efficiency and the acoustics.

(14) Further, independent suction outlets 21 may be curvilinear or straight, the setting between one possibility or another is based on additional conventional aspects of the hermetic compressor itself (not shown).

(15) The existence of independent suction outlet 21 on a single outlet pipe 2 (discharge pipe of the muffler/suction pipe to the cylinder) allows balancing the amount of fluid discharged by suction acoustic filter 1, thereby enabling similar movement of the suction valves (not shown), which ends up resulting in performance and pulse gains of the hermetic compressor.

(16) Having described an example of preferred embodiment of the object of this utility model application, it should be understood that the scope thereof encompasses other possible variations, which are solely limited by the wording of the claims, including therein the possible equivalents means.