Reciprocating Compressor Valves Arrangement

Abstract

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.

Claims

1. Reciprocating compressor valves arrangement, comprising at least one main valve and at least one valve stop; the main valve comprising at least one fixing end, at least one moving end and at least one flexion area; the valve stop comprising at least one support area outlined by at least one end; the reciprocating compressor valves arrangement being characterized by: the flexion area of the main valve and the end of the support area of the valve stop are longitudinally misaligned among them.

2. Reciprocating compressor valves arrangement, according to claim 1, foreseen: a dimension related to the extension defined between the beginning of the fixing base and the beginning of the flexion area of the main valve; and a dimension related to the extension defined between the beginning of the support area and the end of valve stop, the reciprocating compressor valves arrangement being characterized by the fact that the dimension is larger than the dimension.

3. Reciprocating compressor valves arrangement, according to claim 1, characterized by the fact that the distance is of 1,1 to 2,5 times larger than the distance.

4. Reciprocating compressor valves arrangement, according to claim 1, characterized by comprising at least one auxiliary valve comprising at least one fixing end and at least one flexion area, said valve an auxiliary valve being disposed between the main valve and the valve stop.

5. Reciprocating compressor valves arrangement, according to claim 1, characterized by the fixing end of main valve and the fixing end of the auxiliary valve being juxtaposed to each other.

6. Reciprocating compressor valves arrangement, according to claim 4, characterized by the fixing end of the main valve, and the fixing end of the auxiliary valve and the support area of the valve stop are juxtaposed to each other.

7. Reciprocating compressor valves arrangement, according to claim 4, characterized by the flexion area of the main valve and the flexion area of the auxiliary valve are longitudinally misaligned to each other.

8. Reciprocating compressor valves arrangement, according to claim 5, characterized by the flexion area of the main valve, the flexion area of the auxiliary valve and the end of the support area of the stop valve are longitudinally misaligned to each other.

9. Reciprocating compressor valves arrangement, according to claim 4, foreseen: a dimension related to the defined extension between the beginning of the fixing base and the beginning of the flexion area of the main valve; a dimension related to the defined extension between the beginning of the fixing base and the beginning of the flexion area of the auxiliary valve; and a dimension related to the defined extension between the beginning of the support area and the end of the stop valve, the reciprocating compressor valves arrangement being characterized by the dimension being larger than the dimension; the dimension larger than the dimension, and less than the dimension.

10. Reciprocating compressor valves arrangement, according to claim 9, characterized by: the distance being from 1.2 to 2.5 times larger than the distance; and the distance being 1.1 to 2.4 times larger than the distance, respecting that should always be less than.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The invention in question is detailed based on the figures above listed, in which:

[0025] FIG. 1 shows, in exploded perspective, the preferential embodiment of the invention in question;

[0026] FIGS. 2 and 3 shows, schematically, the inventive core of the preferential embodiment of the invention in question;

[0027] FIG. 4 shows, in exploded perspective, the alternate embodiment of the invention in question, and

[0028] FIG. 5 shows, schematically, the inventive core of the preferential embodiment of the invention in question.

DETAILED DESCRIPTION OF THE INVENTION

[0029] Considering the objectives of the invention in question, it is revealed a valves arrangement of reciprocating compressor where the flexion point of the valve (reed, suction or exhaust valve) is intentionally misaligned, being preferably extended, related to the valve stop and/or related to the element immediately disposed on the valve, as for example, an auxiliary valve.

[0030] In the preferred embodiment in question, the element immediately disposed on the valve is an auxiliary valve (known by technicians on the art), being so the major flexion point of the main valve intentionally misaligned related to the flexion point of the auxiliary valve.

[0031] In the preferred embodiment in question, the element immediately disposed on the valve is an auxiliary valve (known by technicians on the art), being so the flexion point of the main valve intentionally misaligned related to the support area of the valve stop.

[0032] As shown on FIGS. 1, 2 and 3, the preferential embodiment of the invention in question comprises a valve arrangement of reciprocating compressor, preferentially hermetic and applied in cooling systems, integrated by a main valve 1 (that can comprises a suction valve or an exhaust valve), an auxiliary valve 2, a vale stop 3 and a support body 5.

[0033] The main valve 1 comprises a reed valve, is preferentially made by metallic alloy, and is integrated by a fixing end 11, a moving end 12 and a flexion end (or point) 13.

[0034] The auxiliary valve 2 is conceptually analogue to the main valve 1, comprising a reed valve, is preferentially made by metallic alloy, and is integrated by a fixing end 21, a moving end 22 and a flexion area (or point) 23.

[0035] It is common that the main 1 and auxiliary 2 valves are geometrically similar and flat (having its ends 11 and 12 longitudinally aligned, and the ends 21 and 22). However, an alternate configuration for the auxiliary valve 2 is found, being this pre-tensioned (having its ends 21 and 22 longitudinally misaligned from its flexion point 23).

[0036] This occurs because, as it is known by technicians of the art, the main valve 1 is projected so that its moving end 12 presents resilient movement during all the operation of the compressor, while the auxiliary valve 2 is projected to damp the moving of said main valve 1.

[0037] However, the preferential embodiment of the invention in question further comprises a valve stop 3.

[0038] The valve stop, as it is known by technicians on the art, is about a component that limits the opening stroke of the main 1 and auxiliary 2 valves. In this case helps also the assembling and maintenance of valves positioning 1 and 2 related to the plate valve 4, and comprising at least one support area 31.

[0039] The assembling of the preferential embodiment of the valves arrangement of the reciprocating compressor is simple: the main valve 1 is disposed on an specific housing of the plate-valve 4; the auxiliary valve 2 is directly disposed over the auxiliary valve 2, the valve stop 3 is directly disposed on the auxiliary valve 2 and a support body 5 (normally belonging to lid 51 from compressor head) is disposed over the valve stop 3.

[0040] The great merit of the invention in question consists on the fact that, different from what occurs on documents JP2013177820 and WO2007116989, the fixing ends 11 and 21 of valves 1 and 2 are juxtaposed to each other, being both indirectly supported on the same support body 5 though a same valve stop 3.

[0041] Therefore, and still referring to the great merit of the invention, the flexion areas 13 and 23 of valves 1 and 2 and end 32 of support area 31 of stop 3 are longitudinally misaligned to each other, being the flexion region 13 downwardly the end 32 and the flexion region 23 is between the flexion region 13 and the end 32.

[0042] For such feature to be reached, it is necessary that both the flexion area 13 of main valve 1 and the flexion area 23 of auxiliary valve 2 and the end 32 of support area 31 from stop 3 are previously established, what is not necessarily common in reed valves belonging to the current state of the art. However, this need is easily reached, simply, in example, defining intentionally the extent of the fixing bases 11 and 21, which are more rigid, during the own process of production (metallic foil stamping) of the valves.

[0043] Thus, it is possible “spacing” the flexion region 13 of the main valve 1 related to the end 32 of the support area 31 from the stop 3, and related to the flexion region 23 of the auxiliary valve 2.

[0044] This “spacing” or longitudinally misalignment between the flexion areas 13 and 23 of valves 1 and 2 and the end 32 of the support area 31 from the stop 3 eliminates the contact between the flexion and the fixing area and also allows that the moving end 12 of the main valve 1 is freely moved (through “automatic” actuation or “command” actuation), which turns to eliminate wear phenomena of valves and also allows the functioning.

[0045] The “spacing” or longitudinally misalignment between the flexion areas 13 and 23 of valves 1 and 2 and the end 32 of the support area 31 of the stop 3 is better observed on FIG. 3, through the dimensional referential D1, D2 and D2.

[0046] Dimension D3, related to main valve 1, comprises the length or extension of the fixing base 11 of the main valve 1, this is, comprises all the valve part 1 defined between the beginning of the fixing base 11 until the beginning of the flexion area 13.

[0047] The dimension D2, related to the auxiliary valve 2, comprises the length or extension of the fixing base 21 of the auxiliary valve 2, this is, comprises all the valve part 2 defined between the beginning of the fixing base 21 until the beginning of the flexion area 23.

[0048] The dimension D1, related to the valve stop 3, comprises the length or extension of the support area 31 of stop 3, this is, all the part defined between the beginning of the support area 31 until said end 32 of the support area 31.

[0049] Thus, according to the invention in question, the dimension D3 is more than the dimension D1, being the dimension D2 more than the dimension D1, but less than the dimension D3.

[0050] More particularly, and preferentially, the distance D3 is from 1,1 to 2,5 times more than the distance D1 and the distance D2 is 1,2 to 1,4 times more than the distance D1.

[0051] As shown on FIGS. 4 and 5, the alternative embodiment of invention in question comprises an arrangement of reciprocating compressor valves, preferably hermetic and applied in cooling systems, integrated by a main valve 1 (that can comprises a suction valve or an exhaust valve), a valve stop 3 and a support body 5, this is, a valves arrangement free of auxiliary valves.

[0052] Generally, the preponderant features of preferential embodiment of the invention in question are present on the alternative embodiment.

[0053] Thus, and as shown on FIG. 5, the flexion area 13 of main valve 1 and the end 32 of support area 31 from stop 3 are longitudinally misaligned to each other, being the flexion region 13 downwardly the end 32.

[0054] Although not shown, alternative embodiment also respects the premise that the dimension D3 is more than the dimension D1.

[0055] Having being described and shown two embodiments of the invention in question, it should be understood that the protection scope in question can include other possible variations, which are limited just by the content of the claims, here included the possible equivalent means.