ABSORBING DEVICE AND METHOD FOR ITS PRODUCTION

Abstract

The absorbing device includes a hollow enclosed chamber including two pot parts. Open ends of the pot parts are connectable to each other by welding or soldering. Each of the pot parts is integrally formed in an opposing end of an air-conditioning conduit, wherein open ends of the pot parts are oriented toward each other. Each of the pot parts is provided with a reduced passage opening interconnected with an internal space of the air-conditioning conduit via a tapered section.

Claims

1-6. (canceled)

7. An absorbing device for an air-conditioning system, comprising: a first pot part integrally formed in an end of a first air conditioning conduit; and a second pot part cooperating with the first pot part to form a hollow enclosed chamber, the second pot part integrally formed in an end of a second air conditioning conduit, an open end of the first pot part connected to an open end of the second pot part, each of the first pot part and the second pot part including a passage therein to provide fluid communication between the hollow enclosed chamber and respective internal spaces of the first air conditioning conduit and the second air conditioning conduit.

8. The absorbing device of claim 7, further comprising: a first tapered section formed between the first air conditioning conduit and the passage of the first pot part, wherein a diameter of the passage of the first pot is smaller than a diameter of the internal space of the first air conditioning conduit; and a second tapered section formed between the second air conditioning conduit and the passage of the second pot part, wherein a diameter of the passage of the second pot is smaller than a diameter of the internal space of the second air conditioning conduit.

9. The absorbing device of claim 8, wherein the first tapered section of the first pot part is formed separate from the first pot part and the first air conditioning conduit.

10. The absorbing device of claim 9, wherein the second tapered section of the second pot part is formed separate from the second pot part and the second air conditioning conduit.

11. The absorbing device of claim 7, wherein the open end of the first pot part is joined to the open end of the second pot part by welding

12. The absorbing device of claim 7, wherein the open end of the first pot part is joined to the open end of the second pot part by soldering.

13. An absorbing device for an air-conditioning system, comprising: a unitary pot part forming a hollow enclosed chamber; an inlet formed in the unitary pot part, the inlet having an opening in communication with the hollow enclosed chamber; an outlet formed in the unitary pot part, the outlet having an opening in communication with the hollow enclosed chamber; a first conduit having an end; a second conduit having an end; a first mouthpiece configured to couple the end of the first conduit to the inlet, an inner diameter of the first mouthpiece smaller than in internal diameter of the first conduit; and a second mouthpiece configured to couple the end of the second conduit to the outlet, an inner diameter of the second mouthpiece smaller than an internal diameter of the second conduit.

14. The absorbing device of claim 13, wherein the first mouthpiece is formed separately from the first conduit.

15. The absorbing device of claim 14, wherein the second mouthpiece is formed separately from the second conduit.

16. A method of forming an absorbing device, comprising: providing a first conduit having an end: providing a second conduit having an end; ramming the end of the first conduit to reduce an internal diameter and increase a wall thickness of the end of the first conduit, wherein an outer diameter of the first conduit is retained; ramming the end of the second conduit to reduce an internal diameter and increase a wall thickness of the end of the second conduit, wherein an outer diameter of the second conduit is retained; widening a distal portion of the end of the first conduit to form a first pot part having an open end; widening a distal portion of the end of the second conduit to form a second pot part having an open end; and joining the open end of the first pot part to the open end of the second pot part to form a hollow enclosed chamber.

17. The method of claim 16, further comprising forming a peripheral flange circumscribing the open end of the first pot part.

18. The method of claim 17, wherein the open end of the second pot part is received by the peripheral flange of the first pot part.

19. The method of claim 16, wherein the first pot part is joined to the second pot part by welding.

20. The method of claim 16, wherein the first pot part is joined to the second pot part by soldering.

Description

DESCRIPTION OF DRAWINGS

[0012] Examples of embodiments of the absorbing device according to the invention for reducing pressure pulses caused by a compressor in an air-conditioning conduit of an air-conditioning system are illustrated in accompanying drawings, in which:

[0013] FIG. 1 is a longitudinal, axial cross-sectional view of a first variant of the absorbing device;

[0014] FIG. 2 is a longitudinal, axial cross-sectional view of a second construction variant of the absorbing device;

[0015] FIG. 3 shows a process of production of one half of the absorbing device of FIG. 1 according to production steps; and

[0016] FIG. 4 is a longitudinal, axial cross-sectional view of a variant with inserted, widened section as a separate element.

DESCRIPTION OF EMBODIMENT OF THE INVENTION

Best Mode

[0017] As it can be seen in the FIG. 1 the absorbing device 10 includes a hollow, enclosed chamber 1, which comprises two pot parts 3. Open ends of the pot parts 3 are connectable to each other. Each of the pot parts 3 is integrally formed in one of two opposing ends of an air-conditioning conduit 2. Each of the pot parts 3 includes a bottom 4 integrally formed therein. The bottom 4 of each of the pot parts 3 is provided with a passage 5 formed therein. The passage 5 of each of the pot parts 3 is interconnected with an internal space of the respective end of the air-conditioning conduit 2 via a gradually tapered section 6. From the above, it is obvious, as can be seen in FIG. 4, that internal diameter D2 of the air-conditioning conduit 2 is larger than a diameter D5 of the passages 5 of the pot parts 3.

[0018] The pot parts 3 are mutually attached to each other via their open ends by welding or soldering.

[0019] At each end of the air-conditioning conduits 2, a reduction of the internal diameter of the conduits 2 is performed by ramming. A thickness of a wall of the ends of the conduit 2 is also increased to provide a sufficient amount of material for subsequent forming operations, while an original outer diameter of the conduit 2 is still retained. During further operations, the ends of the conduit 2 are gradually widened up to a final diameter of the pot parts 3 in several steps. In parallel with these operations, a calibrating of the shape of the pot parts, as well as the tapering of an internal diameter of the conduit are performed. In another step, a peripherally fitted flange is formed at the open end of a first one of the pot parts 3. The peripheral edge flange is configured to receive the straight, open end of a second one of the pot parts 3 therein. The connection between the peripheral flange of the first one of the pot parts 3 and the second one of the pot parts 3 of the enclosed chamber 1 is secured and sealed by welding or soldering.

[0020] Apart from the arrangement, where the tapered section 6 is formed as an integral constituent of the air-conditioning conduit 2, an additional variant is possible, wherein the gradually tapered section 6 is formed as a separate part and is secured intermediate the respective ends of the air-conditioning conduit 2 and the pot parts 3, as can be seen in FIG. 4.

[0021] A technological process for obtaining the reduction of the inlet and expansion chamber diameters is shown in FIG. 3. In a first step 301, a required section having a required length at each of ends of the cut away conduit 2 is provided. In a second step 302, the tapered portion 6 and the passage 5 of the conduit 2 are formed by ramming to reduce the internal diameter and increase the thickness of the wall to provide a sufficient amount of material for subsequent forming operations, while the original outer diameter of the conduit 2 is still retained.

[0022] Further, in a third step 303A, B, one of the ends of the conduit 2 is enlarged up to the final diameter of the pot part 3, while the calibrating of the widening of the internal conduit diameter is being performed at the same time. Then, the end of the conduit 2 is widened until the final diameter is accomplished with the use of a stamping tool. In the third step 303A, B the calibration of the final diameter is performed to obtain desired pot parts 3 of the absorbing device 10.

[0023] For a pot part 3 having a peripheral edge flange, the peripheral edge flange may be additionally formed in the third step 303B.

[0024] As can be seen in the FIG. 2, the absorbing device 10 may also include a unitary hollow enclosed chamber 1 disposed between two ends of the air-conditioning conduit 2, wherein the ends of the air-conditioning conduit 2 are secured in an opposing inlet opening and outlet opening of the hollow enclosed chamber 1 with a coaxial mouthpiece 7. An internal diameter of each of the mouthpieces 7 is smaller than an internal diameter of the respective end of the air-conditioning conduit 2.