US3623572A - Sound damping arrangement - Google Patents

Sound damping arrangement Download PDF

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Publication number
US3623572A
US3623572A US90915A US3623572DA US3623572A US 3623572 A US3623572 A US 3623572A US 90915 A US90915 A US 90915A US 3623572D A US3623572D A US 3623572DA US 3623572 A US3623572 A US 3623572A
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United States
Prior art keywords
apertures
closing
sound damping
damping arrangement
depressions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US90915A
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English (en)
Inventor
Werner Mrosek
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids

Definitions

  • lts respective end faces face the [51] lnt.Cl F161 55/04, plates and are each provided i h recesses mm i ing 7 F01 1/20 with the clearance and with one of the apertures.
  • references Cited Biasing means yieldably biases the respective closing member UNITED STATES PATENTS into closing position in which it resiliently closes partially the 2,674,096 4/1954 Marshall 138/43 x respectively asmifled aPerme- 2.838,072 6/1958 Stumm 181/47
  • the present invention relates generally to damping arrange ments, and more particularly to a sound damping arrangeof course, the assembly of such an arrangement is difficult and complicated effectiveness of this ar- SUMMARY OF THE INVENTION It is, accordingly, an object of the present invention to overcome the aforementioned disadvantages of the art.
  • each of the apertures is associated with one of the depressions and with one of the closing members.
  • the closure members may be configurated as plugs of small paratively small or low pressure.
  • FIG. 3 is a view similar to FIG. 1 but illustrating still another embodiment of the invention.
  • annulus 8 preferably corresponds at least substantially to the cross-sectional area of the passage portion 3. The same is true with respect to the passage portion of the combined crosssectional area of the apertures of the annulus 10.
  • the plates 6 and 9 may be of one piece with the tubular portions 2 and 4, respectively, and in the illustrated embodiment this is shown only for the plate 9 and the tubular portion 4. Such an arrangement is advantageous from a point of view of simplifying the production of the novel construction.
  • a space 11 downstream of the plate 9 in effect constitutes a collecting chamber in which the plurality of individual fluid streams are reunited before passing into the passage portion 5.
  • FIG. I shows a solid insert 12 is accommodated intermediate the plates 6 and 9 and has an outer diameter smaller inner diameter of the passage portion la so that it defines with the wall of the portion 1 an annular channel 13 whose cross-sectional area according to a preferred embodiment of the invention corresponds at least substantially to the cross-sectional area of the passage portion 3.
  • Axial bores 16 are provided as illustrated which respectively register with apertures 18 which continuously displaces the closure member 17 to the broken line position shown.
  • the members 17 are each provided with a bore 19 serving as a throttling bore and communicating with the hollow interior in which the spring 18 is located. The members 17 are guided in the respective recesses 16 in as friction-free a manner as possible so that they are slidable therein. 3
  • the essential point of the construction shown in FIG. 1 is that the space in the interior of the recesses 16 and not filled by the portion 17a of the member 17, is in communication with the spaces of the construction through which the liquid or gaseous medium flows through an aperture or opening 19 of reduced cross section, it being evident that the throttling bore 19 can also be replaced by grooves, channels or the like if desired. 7
  • the broken line position of the member 17 shown in FIG. 1 will be the normal position when no fluid flows.
  • fluid flows in the direction of the arrow 17 are displaced to their full-line position without exerting any throttling effect on the flowing fluid.
  • the space upstream of the members 17 through which the medium flows with variable pressure is in communication with the interior of the recesses 16 which is not filled by the portion 17a of the respective member 17, via the throttling bore 19, obtained between these two spaces so that the member 17 reciprocates to-and-fro in a phase-shifted relationship.
  • the liquid or gaseous medium passes through the passage portion 5 almost without pulsing and therefore almost without causing any further noise due to the production of vibrations.
  • FIG. 2 A further embodiment is illustrated in FIG. 2. It differs from the embodiment of FIG. 1 only in the illustrated details so that the remainder of the illustration of FIG. 1 has been omitted as not essential for an understanding of the embodiment in FIG. 2.
  • the members 17 have been replaced with closure members in form of diaphragms or membranes 22 configurated as a foldable diaphragm and a plate 23 connected with the diaphragm and provided with a throttling bore or aperture 19 which communicates with the interior of the respective recess 16.
  • the spring 18 again serves the same purpose as described with respect to the embodiment of FIG. 1, urging the plate portion 23 into closing relationship against the apertures 8.
  • FIG. 3 it will be seen that this is somewhat analogous to, but simpler than that of FIG. 1.
  • the embodiment ofFIG. 3 may be used with particular advantage in applications where only relatively small fluidflow quantities are involved.
  • the members 30 and 32 have apertures 31 and 33 which respectively communicate with the clearance 13 and the inlet 3 or the outlet 5 (via chamber 11), as the case may be. Although each member may have several apertures, particularly the member 32 may be provided with a single aperthrough opening coaxial with the inlet.
  • the operational principle of the FIG. 3 embodiment is the same as in H68. 1 and 2, i.e., the element or piston 17 compensates and smoothes out pressure variations in the fluid flow.
  • a sound damping arrangement of the character respective concentric annuli of marginally located apertures; an insert accommodated said plates and defining wit depressions bein fluid bores 0 en at said upstream end face; and wherein sal closure mem ers are plugs slldably accommodated in respective ones of said bores.
  • a sound damping arrangement as defined in claim 2 said closure members being resiliently deflectable diaphragms 7.
  • a sound further comprising an annular groove connecting said recesses

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs Characterized By Structure (AREA)
  • Pipe Accessories (AREA)
US90915A 1970-02-19 1970-11-19 Sound damping arrangement Expired - Lifetime US3623572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702007527 DE2007527A1 (de) 1970-02-19 1970-02-19 Vorrichtung zur Dampfung von Stoßen, Schwingungen und dadurch hervorgerufenen Geräuschen in einer ein gasformiges oder flussiges Medium fuhrenden Leitung

Publications (1)

Publication Number Publication Date
US3623572A true US3623572A (en) 1971-11-30

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ID=5762659

Family Applications (1)

Application Number Title Priority Date Filing Date
US90915A Expired - Lifetime US3623572A (en) 1970-02-19 1970-11-19 Sound damping arrangement

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US (1) US3623572A (ja)
JP (1) JPS5329847B1 (ja)
DE (1) DE2007527A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090815A1 (de) * 2001-05-04 2002-11-14 Institut Für Mechanik Und Maschinenlehre Johannes Kepler Universität Linz Vorrichtung zum dämpfen von druckpulsationen in einem hydrauliksystem

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338416C2 (de) * 1983-10-22 1986-03-20 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zum Dämpfen von Schwingungen in Flüssigkeiten
JP7229920B2 (ja) 2016-12-15 2023-02-28 ウォーター ピック インコーポレイテッド 照明特徴部を有する歯磨きデバイス

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674096A (en) * 1951-07-10 1954-04-06 Tricon Inc Flow damping device
US2838072A (en) * 1955-02-07 1958-06-10 Sterer Engineering & Mfg Compa Temperature compensated device for absorbing transient pressure fluctuations
US2864403A (en) * 1955-05-10 1958-12-16 Jersey Prod Res Co Desurger for liquid systems
US2919719A (en) * 1956-08-01 1960-01-05 A Responsabilitee Limitee Rech Shock-absorber device for pneumatic suspension of vehicles
US3074437A (en) * 1953-02-10 1963-01-22 Mercier Jean Piston accumulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674096A (en) * 1951-07-10 1954-04-06 Tricon Inc Flow damping device
US3074437A (en) * 1953-02-10 1963-01-22 Mercier Jean Piston accumulator
US2838072A (en) * 1955-02-07 1958-06-10 Sterer Engineering & Mfg Compa Temperature compensated device for absorbing transient pressure fluctuations
US2864403A (en) * 1955-05-10 1958-12-16 Jersey Prod Res Co Desurger for liquid systems
US2919719A (en) * 1956-08-01 1960-01-05 A Responsabilitee Limitee Rech Shock-absorber device for pneumatic suspension of vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090815A1 (de) * 2001-05-04 2002-11-14 Institut Für Mechanik Und Maschinenlehre Johannes Kepler Universität Linz Vorrichtung zum dämpfen von druckpulsationen in einem hydrauliksystem

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Publication number Publication date
JPS5329847B1 (ja) 1978-08-23
DE2007527A1 (de) 1971-09-02

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