Reciprocating Compressor Provided with Arrangement of Suction Valves

Abstract

The present invention refers to a reciprocating compressor provided with an arrangement of suction valves and, more particularly, a reciprocating compressor which, capable of operating with at least two suction lines having different working pressures, is made up of an arrangement of valves comprising including at least two orifice valve sets. One of these sets provides a semi-commanded valve, whereas the other set provides an automatic valve. The core of the invention is related to the fact that said orifice valve sets are disposed on different components of the reciprocating compressor.

Claims

1. A reciprocating compressor capable of operating with at least two suction lines having different working pressures, and said reciprocating compressor provided with an arrangement of suction valves, comprising: at least a compression cylinder, at least a valve plate disposed at one of the ends of the compression cylinder, and at least a mobile piston disposed inside the compression cylinder; at least an arrangement of suction valves comprised by: at least an orifice valve set comprised by at least a suction orifice, at least a suction valve having cooperative actuation with its respective suction orifice, and at least an electromagnetic field generating element capable of interacting selectively with a suction valve; at least an orifice valve set comprised by at least a suction orifice at least a suction valve having cooperative actuation with its respective suction orifice; the reciprocating compressor provided with arrangement of suction valves being specially characterized in that said orifice valve sets and are disposed on different components of the reciprocating compressor and are disposed in parallel.

2. A reciprocating compressor provided with an arrangement of suction valves, as claimed in claim 1, characterized in that the orifice valve set is disposed on the compression cylinder of the reciprocating compressor.

3. A reciprocating compressor provided with an arrangement of suction valves, as claimed in claim 2, characterized in that the orifice valve set is disposed on the valve plate of the reciprocating compressor.

4. A reciprocating compressor provided with an arrangement of suction valves, as claimed in claim 2, characterized in that the orifice valve set is disposed on the mobile piston of the reciprocating compressor.

5. A reciprocating compressor provided with arrangement of suction valves, as claimed in claim 1, characterized in that the orifice valve set is disposed on the valve plate of the reciprocating compressor.

6. A reciprocating compressor provided with arrangement of suction valves, as claimed in claim 5, characterized in that the orifice valve set is disposed on the compression cylinder of the reciprocating compressor.

7. A reciprocating compressor provided with arrangement of suction valves, as claimed in claim 5, characterized in that the orifice valve set is disposed on the mobile piston of the reciprocating compressor.

8. A reciprocating compressor provided with arrangement of suction valves, as claimed in claim 1, characterized in that the orifice valve set is disposed on the mobile piston of the reciprocating compressor.

9. A reciprocating compressor provided with arrangement of suction valves, as claimed in claim 8, characterized in that the orifice valve set is disposed on the compression cylinder of the reciprocating compressor.

10. A reciprocating compressor provided with arrangement of suction valves, as claimed in claim 8, characterized in that the orifice valve set is disposed on the valve plate of the reciprocating compressor.

Description

DESCRIPTION OF THE DRAWINGS

[0031] The invention in question will be described in greater detail based on the figures listed below, wherein:

[0032] FIG. 1 illustrates a double suction compression mechanism comprising a first embodiment of the arrangement of suction valves, according to the invention in question;

[0033] FIG. 2 illustrates a double suction compression mechanism comprising a second embodiment of the arrangement of suction valves, according to the invention in question; and

[0034] FIG. 3 illustrates a double suction compression mechanism comprising a third embodiment of the arrangement of suction valves, according to the invention in question.

DETAILED DESCRIPTION OF THE INVENTION

[0035] As previously explained, the invention in question comprises a complement to the invention detailed in document BRPI1001359, seeking to present certain purely optional improvements, of a technical constructive nature. Particularly, the main objective of the invention in question is to solve the sizing problems related to the embodiment of the arrangement of valves detailed in document BRPI1001359.

[0036] Therefore, three possibilities of general embodiments are presented, all especially suited to a reciprocating compressor comprising a compression cylinder 1, a valve plate 2 disposed at one of the ends of the compression cylinder 1, a mobile piston 3 disposed inside the compression cylinder 1, a first orifice valve set 41 comprised by a suction orifice 51, a suction valve 61 having cooperative actuation to its respective suction orifice 51, and an electromagnetic field generating element 71 capable of selectively interacting with a suction valve 61, and a second orifice valve set 42 comprised by at least a suction orifice 52, at least a suction valve 62 having cooperative actuation with its respective suction orifice 52.

[0037] In this context, it is worth mentioning that the orifice valve set 41 comprises a suction semi-commanded valve, and the orifice valve set 42 comprises an automatic suction valve, and that both valves specifically comprise bypass-type valves.

[0038] All the technical aspects cited thus far belong to the current state of the art, and are broadly illustrated and described in document BRPI1001359.

[0039] The core of the invention in question, however, consists of presenting constructions where the orifice valve sets are disposed on different components of the reciprocating compressor, so as to enable size streamlining of the components of which said compressor is made.

[0040] A first embodiment is illustrated in FIG. 1.

[0041] As illustrated in FIG. 1, the orifice valve set 41 (duly comprised by a suction orifice 51, a suction valve 61 having cooperative actuation with its respective suction orifice 51, and an electromagnetic field generating element 71 capable of selectively interacting with a suction valve 61) is disposed on the compression cylinder 1 of the reciprocating compressor.

[0042] More particularly, said suction valve 61 is fastened on a kind of antechamber fluidly connected to the inside of the compression cylinder 1 by means of said suction orifice 51 (the valve fastening means on their respective orifices, according to the present invention, may occur in different forms belonging to the current state of the art). Additionally, it is also noted that cited electromagnetic field generating element 71, preferably the electric coil, is preferably disposed inside the aforementioned antechamber.

[0043] Further in connection with FIG. 1, it is noted that the orifice valve set 42 (duly comprised by a suction orifice 52 and a suction valve 62 having cooperative actuation with its respective suction orifice 52), is disposed on the valve plate 2 of the reciprocating compressor.

[0044] Optionally, and further according to this first embodiment, the orifice valve set 42 may also be disposed on the mobile piston 3 of the reciprocating compressor.

[0045] Further within this context, it is worth disclosing that the aforementioned antechamber may comprise a doubly-functional environment, that is, an environment suitable for the assembly of the orifice valve set 41 and, at the same time, an environment having acoustic optimization functions (suction muffler).

[0046] A second embodiment is illustrated in FIG. 2.

[0047] As illustrated in FIG. 2, the orifice valve set 41 (duly comprised by a suction orifice 51, a suction valve 61 having cooperative actuation with its respective suction orifice 51, and an electromagnetic field generating element 71 capable of selectively interacting with a suction valve 61) is disposed on the valve plate 2 of the reciprocating compressor.

[0048] More particularly, the electromagnetic field generating element 71 is fastened on the valve plate 2 so as to be outside the compression cylinder 1, whereas said suction valve 61 is disposed inside the compression cylinder 1. The suction orifice 51 itself comprises a hollowed orifice shaped on the valve plate 2. The valve fastening means on their respective orifices, according to the present invention, may occur in different forms belonging to the current state of the art.

[0049] Further in connection with FIG. 2, it is noted that the orifice valve set 42 (duly comprised by a suction orifice 52 and a suction valve 62 having cooperative actuation with its respective suction orifice 52), is disposed on the compression cylinder 3 of the reciprocating compressor, this type of disposition being already known by persons skilled in the art.

[0050] Optionally, and further according to this second embodiment, the orifice valve set 42 may also be disposed on the compression cylinder 1 of the reciprocating compressor.

[0051] A third embodiment is illustrated in FIG. 3.

[0052] As illustrated in FIG. 3, the orifice valve set 41 (duly comprised by a suction orifice 51, a suction valve 61 having cooperative actuation with its respective suction orifice 51, and an electromagnetic field generating element 71 capable of selectively interacting with suction valve 61) is disposed on the compression cylinder 3 of the reciprocating compressor.

[0053] More particularly, the electromagnetic field generating element 71 is fastened on the rear face of the compression cylinder 3 so as to be outside the compression cylinder 1, whereas said suction valve 61 is disposed inside the compression cylinder 1. The suction orifice 51 itself comprises a hollowed orifice shaped on the very compression cylinder 3, and the valve fastening means on their respective orifices, according to the present invention, may occur in different forms belonging to the current state of the art.

[0054] Further in connection with FIG. 3, it is noted that the orifice valve set 42 (duly comprised by a suction orifice 52 and a suction valve 62 having cooperative actuation with its respective suction orifice 52), is disposed on the valve plate 2, this type of disposition being already known by persons skilled in the art.

[0055] Optionally, and further according to this third embodiment, the orifice valve set 42 may also be disposed on the compression cylinder 1 of the reciprocating compressor.

[0056] The big advantage of these embodiments in relation to the state of the art (especially the state of the art described in document BRPI1001359) refers to the fact that the semi-commanded valve (suction valve 61 and its electromagnetic field generating element 71) is disposed distant from the automatic valve (suction valve 62), on different components of the reciprocating compressor. This enables the use of a space entirely dedicated to the assembly of the orifice valve set 41 and, more particularly, a space entirely dedicated to the assembly of the electromagnetic field generating element 71 belonging to said orifice valve set 41, whereby enabling a feasible and implementable embodiment in small-sized compressors.

[0057] Examples of the preferred embodiments of the invention in question having been described, it must be understood that the scope of the present patent may encompass other potential variations, which are limited solely by the content of the claims, possible equivalent means being included therein.