EP2549108A2 - Acoustic damping in a coolant circuit - Google Patents
Acoustic damping in a coolant circuit Download PDFInfo
- Publication number
- EP2549108A2 EP2549108A2 EP12004235A EP12004235A EP2549108A2 EP 2549108 A2 EP2549108 A2 EP 2549108A2 EP 12004235 A EP12004235 A EP 12004235A EP 12004235 A EP12004235 A EP 12004235A EP 2549108 A2 EP2549108 A2 EP 2549108A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- silencer
- opening
- muffler
- refrigerant
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims description 46
- 239000002826 coolant Substances 0.000 title description 2
- 230000003584 silencer Effects 0.000 claims abstract description 71
- 239000003507 refrigerant Substances 0.000 claims abstract description 67
- 239000010726 refrigerant oil Substances 0.000 claims abstract description 28
- 238000005192 partition Methods 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 claims description 55
- 230000030279 gene silencing Effects 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 2
- 229920001515 polyalkylene glycol Polymers 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
Definitions
- the invention relates to a silencer device for a refrigerant oil carrying refrigerant circuit.
- a "manifold type" muffler is described, over which the direction in which the inlet pipe is connected to the housing of the sound absorbing chamber is orthogonal to the direction in which the outlet pipe is connected to the housing. Furthermore, from the KR 10 2008 0038784 A a muffler for an air conditioner of a vehicle is known in which an input pipe for a refrigerant and a discharge pipe for a refrigerant are arranged on two opposite sides of the muffler housing and are directed in different directions within the housing.
- a refrigerant oil is usually used for lubricating moving parts in the refrigeration system circuit.
- a refrigerant oil is mixed with the refrigerant of the refrigeration system circuit in operation and therefore runs in the refrigerant circuit with.
- a suitable refrigerant oil is polyalkylene glycol.
- the refrigerant oil is usually entrained by the flow of the refrigerant in the tubes of the refrigerant piping.
- the refrigerant oil is usually entrained by the flow of the refrigerant in the tubes of the refrigerant piping.
- a separation of refrigerant oil takes place on a muffler chamber inner wall and the muffler acts as an oil trap.
- the silencer be preceded by a ⁇ labscheidehunt from a return of refrigerant oil to the compressor. Also from the DE 60 30 4550 T2 is known to make an oil separation before the entry of the refrigerant in the muffler chamber.
- the object of the present invention is to provide a sound damping in a refrigerant oil carrying refrigerant circuit, with the accumulation of refrigerant oil in the muffler chamber can be reduced or prevented.
- the volume and dimensions of the upper silencer chamber, the lower silencer chamber and the silencer pipe are designed for interference damping of the pressure pulsation in the gaseous refrigerant.
- the length of the upper tube section is matched to the dimensions of the inner space of the upper silencer chamber in order to achieve optimum sound damping.
- the position of the upper opening to the position of the damping tube is staggered to optimize the sound attenuation, wherein the inflow direction of the refrigerant is oriented in the interior of the sound attenuation chamber parallel to the outflow through the Dämppungsrohr.
- the position of the lower opening is selected such that the outflow direction of the refrigerant is oriented orthogonal to the inflow direction of the refrigerant through the Dampfungsrohr into the interior of the lower silencing chamber. It is understood that another relative orientation of the flow through the upper or lower opening for orientation of the flow through the damping tube is also encompassed by the invention.
- refrigerant is supplied via the upper supply port of the upper silencer chamber, which carries a refrigerant oil and acts on the inner walls of the upper silencer chamber.
- refrigerant oil there is an accumulation of oil on the top of the muffler partition.
- the amount of the accumulated refrigerant oil depends on the height of the upper opening, which, however, can not be arbitrarily reduced so as not to deteriorate the damping characteristics of the device. However, after a certain period of operation of the device, the amount of accumulated oil has increased so much that the level has reached the height of the upper opening. From this point on, part of the accumulated oil in the form of oil droplets can be transported into the lower silencer chamber through the refrigerant gas passing through the damper tube.
- the inner walls of the lower silencer chamber are to a lesser extent supplied with refrigerant and entrained refrigerant oil, so that there is less oil separation there.
- an oil return takes place to a great extent via the lower discharge opening to the compressor.
- the volume of the upper muffler chamber is reduced in operation by accumulated oil, resulting in a change in the muffling characteristics of the upper muffling chamber over its muffling characteristics without accumulated refrigerant oil.
- a silencing device for a refrigerant circuit with a refrigerant containing a refrigerant oil comprising a housing in which a first silencer chamber and a second silencer chamber are arranged, wherein the first silencer chamber has a first supply port, which is connectable to the refrigerant circuit and the second silencer chamber has a second discharge opening which is connectable to the refrigerant circuit and between the first and second silencer chamber a Schalldämpfentrennwand is arranged, which has a the first silencer chamber with the second silencer chamber connecting damping tube, which with a first pipe section having a first opening in the first silencer chamber protrudes, wherein in the silencer partition at least one oil bypass opening is arranged, which connects the first and second silencer chamber.
- a sound damping device comprising a housing in which an upper silencer chamber and a lower silencer chamber are arranged, wherein the upper silencer chamber has an upper feed opening, which is connectable to the refrigerant circuit and having a lower discharge opening, which with the refrigerant circuit is connectable and wherein between the upper and lower muffler chamber a muffler partition is arranged, comprising a damping tube connecting the upper muffler chamber to the lower muffler chamber, which projects into the upper muffler chamber with an upper pipe section having an upper opening, wherein at least one oil bypass opening connecting the upper and lower muffler chambers is disposed in the muffler partition wall.
- a sound damping device comprising a housing in which a left silencer chamber and a right silencer chamber are arranged, wherein the left silencer chamber has a left feed opening, which is connectable to the refrigerant circuit and has a right discharge opening, which with the refrigerant circuit is connectable and that between the left and right muffler chamber a Schalldämpfentrennwand is arranged, which has a left muffler chamber connecting the right muffler chamber damping tube, with a left pipe section with a left opening in the left muffler chamber protrudes, wherein in the muffler partition in a Area below the height of the left opening at least one oil bypass opening is arranged, which connects the left and right muffler chamber.
- oil may accumulate in the region of the lower housing wall, but it is ensured by the relatively low arranged oil bypass opening that this oil is present in both the left and right muffler chamber and from the right muffler chamber together with the refrigerant through the right discharge opening can be removed.
- the terms "left” and "right” merely serve to define a direction. Therefore, the invention also includes a variant in which a supply of refrigerant into a right silencer chamber and a discharge of refrigerant from a left silencer chamber.
- an oil return to the compressor is ensured even if the oil level of the accumulated oil has not yet reached the height of the upper or left opening.
- the volume of the upper muffler chamber is reduced to a lesser extent by accumulated oil during operation.
- the sound-damping tube has a clear diameter D and the at least one oil-bypass opening has a clear diameter d ⁇ D, in particular a diameter d ⁇ 1 ⁇ 2 D. If the oil bypass opening has a clear diameter d ⁇ D, it is achieved that the damping properties of the chamber are largely determined by the chamber volume and the damping tube and by the oil bypass opening only to a lesser extent.
- the damping tube protrudes with a lower pipe section with a lower opening in the lower muffler chamber.
- the upper and lower pipe sections have the same length.
- Analog is provided that the damping tube protrudes with a right pipe section with a right opening in the right muffler chamber.
- Another embodiment of the invention is characterized in that at least two oil bypass openings are provided, whereby a faster discharge of oil into the lower silencer chamber can be achieved.
- a further embodiment of the invention is characterized in that the muffler separating wall seen from the interior of the upper muffler chamber has a concave shape, whereby a further acceleration of the delivery of oil into the lower muffler chamber is achieved.
- a further embodiment of the invention is characterized in that the housing is designed as a deep-drawn pot made of a sheet metal material, whereby the housing manufacturing technology can be easily manufactured.
- a further embodiment of the invention is characterized in that the housing has a circular cross-section in a plane perpendicular to a longitudinal axis of the housing, whereby a housing of tube mechanical stability which is easy to manufacture can be achieved, the acoustic damping properties of which can be calculated very simply.
- a further embodiment of the invention is characterized in that the housing has an ellipsoidal cross-section in a plane perpendicular to a longitudinal axis of the housing, whereby a housing of tubular mechanical stability which is easy to produce can be achieved, the acoustic damping properties of which can be calculated very simply.
- FIGS. 1a to 1c show a schematic representation of a silencer device 1 according to the invention with a housing 10 in which an upper silencer chamber 15 and a lower silencer chamber 20 are arranged.
- the sound damping device 1 is integrated in a refrigerant circuit, in particular of a motor vehicle, and in particular enables the damping of pressure pulsation in the refrigerant.
- the upper silencing chamber 15 has an upper supply port 16 for a supply 17 of refrigerant.
- a partition wall 30 is arranged with a damping tube 40 connecting the upper muffler chamber 15 and the lower muffler chamber 20.
- the volume and dimensions of the upper muffler chamber 15, the lower muffler chamber 20 and the sound attenuation tube 40 are designed for one Interference damping of pressure pulsation in gaseous refrigerant. Further, the upper opening 16 is arranged offset to the position of the damping tube 40 to optimize the sound attenuation.
- the lower muffler chamber 20 has a discharge opening 21 for a discharge 22 of refrigerant, which has an orthogonal orientation to the damping tube 40 and to the orientation of the upper opening 16.
- the damping tube 40 protrudes with an upper part 41 into the interior of the muffler chamber 15. The length of the upper portion 41 is determined depending on the desired damping characteristics of the muffler chamber 15.
- the damping tube 40 further includes a lower portion 42 which in the lower muffler chamber 20 sticks out.
- the length of a lower portion 42 of the damping tube 40 is determined by the desired damping properties of the lower muffler chamber 20.
- the damping tube 40 has a clear diameter D, which is also determined by the desired damping properties of the upper muffler chamber 15 and the lower muffler chamber 20th
- FIG. 1b For example, there is shown a situation in which an oil pool 31 has already formed on top of the partition wall 30 due to an oil separated from the refrigerant gas / oil droplet mixture 18. It is indicated that due to the deposition of the Oil, which is relatively free of refrigerant oil 19 via the discharge port 21 to the refrigerant circuit guided refrigerant gas 19.
- FIG. 2a shows a further embodiment of a muffler device.
- the muffler assembly 1 a there is disposed in the partition wall 30 an oil bypass port 55 through which refrigerant oil from a refrigerant oil pool 56 can enter the lower muffler chamber 20 and mix with refrigerant gas to form a refrigerant gas / oil droplet mixture 18.
- the refrigerant oil pool 56 has a smaller volume than the refrigerant oil pool 31 as long as sufficient drainage of refrigerant oil can be made through the oil bypass opening 55 Figure 1c .
- An accelerated outflow of oil from the refrigeration oil accumulation 56 can be achieved in that the partition wall 50 is lowered in the region of the oil bypass opening 55 and has a concave shape seen from the interior of the upper muffler chamber 15, since in this case refrigerant oil from the farther from the oil bypass opening 56 remote areas of the partition 50 in the region of the oil bypass opening 56 can flow.
- the sound attenuation tube 40 has a clear diameter D and the oil bypass opening 56 has a clear diameter d ⁇ D, in particular a diameter d ⁇ 1 ⁇ 2 D.
- FIG. 2b shows a further embodiment of a sound damping device 1 b with a housing in which a left muffler chamber 15 and a right muffler chamber 20 are arranged.
- the sound damping device 1 b has an orientation rotated at an angle of 90 ° with respect to the device 1a.
- the left muffler chamber 15 has a left feed opening 16 which is connectable to the refrigerant circuit, the right muffler chamber 20 having a right discharge opening 21 which is connectable to the refrigerant circuit.
- a muffler partition wall 50 is arranged, which has a left muffler chamber 15 with the right muffler chamber 20 connecting the damping tube 40 which projects with a left pipe section 41 with a left opening 41 b in the left muffler chamber 15.
- the damper tube 40 projects into the right muffler chamber 20 with a right pipe section 42.
- a lower oil bypass opening 55a and an upper oil bypass opening 55b connecting the left and right muffler chambers 15 and 20 In the area of a lower housing wall 10a, accumulated oil 56a is shown extending to both the left and right of the muffler partition wall 50.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die Erfindung betrifft eine Schalldämpfervorrichtung für einen Kältemittelöl mitführenden Kältemittelkreislauf.The invention relates to a silencer device for a refrigerant oil carrying refrigerant circuit.
Es ist bekannt, in einem Kältemittelkreislaufsystem Schalldämpfer einzusetzen, mit denen die Druckpulsationen eines aus einem Kompressor des Kältemittelkreislaufs austretenden Kältemittels reduziert werden können. So beschreibt beispielsweise die
Zur Schmierung von beweglichen Teilen im Kälteanlagenkreislauf, insbesondere eines Kompressors wird üblicherweise ein Kältemittelöl eingesetzt. Ein derartiges Kältemittelöl ist mit dem Kältemittel des Kälteanlagenkreislaufs im Betrieb gemischt und läuft daher im Kältemittelkreislauf mit. Für das Kältemittel R 134 A ist ein geeignetes Kältemittelöl PolyAlkylen-Glykol.For lubricating moving parts in the refrigeration system circuit, in particular a compressor, a refrigerant oil is usually used. Such a refrigerant oil is mixed with the refrigerant of the refrigeration system circuit in operation and therefore runs in the refrigerant circuit with. For refrigerant R 134 A, a suitable refrigerant oil is polyalkylene glycol.
Das Kältemittelöl wird üblicherweise von der Strömung des Kältemittels in den Rohren der Kältemittelleitung mitgerissen. Allerdings besteht bei den bekannten Schalldämpfern die Gefahr, dass eine Abscheidung von Kältemittelöl an einer Schalldämpferkammerinnenwand erfolgt und der Schalldämpfer als Ölfalle wirkt.The refrigerant oil is usually entrained by the flow of the refrigerant in the tubes of the refrigerant piping. However, there is the risk in the known mufflers that a separation of refrigerant oil takes place on a muffler chamber inner wall and the muffler acts as an oil trap.
Um eine Ölabscheidung im Schalldämpfer zu verhindern, kann, wie in der
Aufgabe der vorliegenden Erfindung ist es, eine Schalldämpfung in einem Kältemittelöl mitführenden Kältemittelkreislauf Verfügung zu stellen, mit der eine Akkumulation von Kältemittelöl in der Schalldämpferkammer reduziert oder verhindert werden kann.The object of the present invention is to provide a sound damping in a refrigerant oil carrying refrigerant circuit, with the accumulation of refrigerant oil in the muffler chamber can be reduced or prevented.
Die Aufgabe wird erfindungsgemäß mit den Merkmalen des unabhängigen Patentanspruchs gelöst.The object is achieved with the features of the independent claim.
Die erfindungsgemäße Schalldämpfungsvorrichtung für einen ein Kältemittelöl mitführende Kältemittelkreislauf umfasst ein Gehäuse, in dem eine obere Schalldämpferkammer und eine untere Schalldämpferkammer angeordnet.sind, wobei die obere Schalldämpferkammer eine obere Zufuhröffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist sowie eine untere Abführöffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist und zwischen der oberen und unteren Schalldämpferkammer und Schalldämpfertrennwand angeordnet ist, die ein die obere Schalldämpferkammer mit der unteren Schalldämpferkammer verbindendes Dämpfungsrohr aufweist, welches mit einem oberen Rohrabschnitt mit einer oberen Öffnung in die obere Schalldämpferkammer ragt, wobei auf der Oberseite der Schalldämpfertrennwand akkumuliertes Kältemittelöl bei einem Füllstand, der die Höhe des obereren Rohrabschnitts übersteigt, zusammen mit Kältemitteldampf der unteren Schalldämpferkammer zuführbar ist.The silencing device according to the invention for a coolant circuit carrying a refrigerant oil comprises a housing in which an upper silencer chamber and a lower silencer chamber are arranged, the upper silencer chamber having an upper feed opening which is connectable to the refrigerant circuit and has a lower discharge opening which communicates with the Refrigerant circuit is connectable and disposed between the upper and lower muffler chamber and Schalldämpfentrennwand having a the upper muffler chamber with the lower muffler chamber connecting damping tube which projects with an upper pipe section with an upper opening in the upper muffler chamber, wherein accumulated on top of the muffler partition Refrigerant oil at a level that exceeds the height of the upper pipe section, along with refrigerant vapor of the lower silencer chamber Zuf is YOURSELFSOFTWAREUPDAT E.
Volumen und Abmessungen der oberen Schalldämpferkammer, der unteren Schalldämpferkammer und des Schalldämpfungsrohrs sind ausgelegt für eine Interferenzdämpfung der Druckpulsation im gasförmigen Kältemittel. Vorzugsweise ist die die Längsausdehung der oberen Schalldämpferkammer in vertikaler Richtung der Längsausdehnung in horizontaler Richtung. Insbesondere ist die Länge des oberen Rohrabschnitts abgestimmt auf die Abmessungen des Innenraumms der oberen Schalldämpferkammer um eine optimale Schalldämpfung zu erreichen. Ferner ist zur Optimierung der Schalldämpfung die Position der oberen Öffnung zur Position des Dämpfungsrohrs versetzt angeordnet, wobei die Einströmrichtung des Kältemittels in das Innere der Schalldämpfungskammer parallel zur Ausströmrichtung durch das Dämfpungsrohr orientiert ist. Die Postion der unteren Öffnung ist derart gewählt, dass die Ausströmrichtung des Kältemittels orthogonal zur Einströmrichtung des Kältemittels durch das Dampfungsrohr in das Innere der unteren Schalldämpfungskammer orientiert ist. Es versteht sich, dass auch eine andere relative Orientierung der Strömung durch die obere beziehungsweise untere Öffnung zur Orientierung der Strömung durch das Dämpfungsrohr von der Erfindung umfasst ist.The volume and dimensions of the upper silencer chamber, the lower silencer chamber and the silencer pipe are designed for interference damping of the pressure pulsation in the gaseous refrigerant. Preferably, the longitudinal extension of the upper muffler chamber in the vertical direction of the longitudinal extent in the horizontal direction. In particular, the length of the upper tube section is matched to the dimensions of the inner space of the upper silencer chamber in order to achieve optimum sound damping. Further, the position of the upper opening to the position of the damping tube is staggered to optimize the sound attenuation, wherein the inflow direction of the refrigerant is oriented in the interior of the sound attenuation chamber parallel to the outflow through the Dämppungsrohr. The position of the lower opening is selected such that the outflow direction of the refrigerant is oriented orthogonal to the inflow direction of the refrigerant through the Dampfungsrohr into the interior of the lower silencing chamber. It is understood that another relative orientation of the flow through the upper or lower opening for orientation of the flow through the damping tube is also encompassed by the invention.
Im Betrieb wird über die obere Zufuhröffnung der oberen Schalldämpferkammer Kältemittel zugeführt, welches ein Kältemittelöl mitführt und die Innenwände der oberen Schalldämpferkammer beaufschlagt. Dabei erfolgt eine Akkumulation von Öl auf der Oberseite der Schalldämpfertrennwand. Die Menge des akkumulierten Kältemittelöls hängt dabei von der Höhe der oberen Öffnung ab, die jedoch nicht beliebig verringert werden kann, um die Dämpfungseigenschaften der Vorrichtung nicht zu verschlechtern. Nach einiger gewissen Betriebsdauer der Vorrichtung hat allerdings die Menge des akkumulierten Öls derart zugenommen, dass der Füllstand die Höhe der oberen Öffnung erreicht hat. Von diesem Zeitpunkt an kann ein Teil des akkumulierten Öls in Form von Öltröpfchen durch das von dem durch das Dämpfungsrohr geführte Kältemittelgas in die untere Schalldämpferkammer transportiert werden. Da bereits in der oberen Schalldämpferkammer eine Dämpfung von Pulsationen des Kältemittels erfolgt ist, werden die Innenwände der unteren Schalldämpferkammer in geringerem Maße mit Kältemittel und mitgeführtem Kältemittelöl beaufschlagt, so dass dort eine geringere Ölabscheidung erfolgt. Im Unterschied zu den aus dem Stand der Technik bekannten Schalldämpfern erfolgt ein Ölrücklauf in hohem Masse über die untere Abführöffnung zum Kompressor. Allerdings wird das Volumen der oberen Schalldämpferkammer durch akkumuliertes Öl im Betrieb vermindert, was zu einer Änderung der Schalldämpfungseigenschaften der oberen Schalldämpfungskammer gegenüber deren Schalldämpfungseigenschaftn ohne akkumulierten Kältemittelöl führt.In operation, refrigerant is supplied via the upper supply port of the upper silencer chamber, which carries a refrigerant oil and acts on the inner walls of the upper silencer chamber. In this case, there is an accumulation of oil on the top of the muffler partition. The amount of the accumulated refrigerant oil depends on the height of the upper opening, which, however, can not be arbitrarily reduced so as not to deteriorate the damping characteristics of the device. However, after a certain period of operation of the device, the amount of accumulated oil has increased so much that the level has reached the height of the upper opening. From this point on, part of the accumulated oil in the form of oil droplets can be transported into the lower silencer chamber through the refrigerant gas passing through the damper tube. Since an attenuation of pulsations of the refrigerant has already taken place in the upper silencer chamber, the inner walls of the lower silencer chamber are to a lesser extent supplied with refrigerant and entrained refrigerant oil, so that there is less oil separation there. In contrast to the silencers known from the prior art, an oil return takes place to a great extent via the lower discharge opening to the compressor. However, the volume of the upper muffler chamber is reduced in operation by accumulated oil, resulting in a change in the muffling characteristics of the upper muffling chamber over its muffling characteristics without accumulated refrigerant oil.
Die Erfindung wird auch gelöst von einer Schalldämpfungsvorrichtung für einen Kältemittelkreislauf mit einem ein Kältemittelöl enthaltenden Kältemittel, umfassend ein Gehäuse, in dem eine erste Schalldämpferkammer und eine zweite Schalldämpferkammer angeordnet sind, wobei die erste Schalldämpferkammer eine erste Zufuhröffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist und die zweite Schalldämpferkammer eine zweite Abführöffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist und zwischen der ersten und zweiten Schalldämpferkammer eine Schalldämpfertrennwand angeordnet ist, die ein die erste Schalldämpferkammer mit der zweiten Schalldämpferkammer verbindendes Dämpfungsrohr aufweist, welches mit einem ersten Rohrabschnitt mit einer ersten Öffnung in die erste Schalldämpferkammer ragt, wobei in der Schalldämpfertrennwand zumindest eine Ölbypass-Öffnung angeordnet ist, die die erste und zweite Schalldämpferkammer verbindet.The invention is also achieved by a silencing device for a refrigerant circuit with a refrigerant containing a refrigerant oil, comprising a housing in which a first silencer chamber and a second silencer chamber are arranged, wherein the first silencer chamber has a first supply port, which is connectable to the refrigerant circuit and the second silencer chamber has a second discharge opening which is connectable to the refrigerant circuit and between the first and second silencer chamber a Schalldämpfentrennwand is arranged, which has a the first silencer chamber with the second silencer chamber connecting damping tube, which with a first pipe section having a first opening in the first silencer chamber protrudes, wherein in the silencer partition at least one oil bypass opening is arranged, which connects the first and second silencer chamber.
Insbesondere wird die Aufgabe auch von einer Schalldämpfungsvorrichtung gelöst, die ein Gehäuse umfasst, in dem eine obere Schalldämpferkammer und eine untere Schalldämpferkammer angeordnet sind, wobei die obere Schalldämpferkammer eine obere Zufuhröffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist sowie eine untere Abführöffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist und wobei zwischen der oberen und unteren Schalldämpferkammer eine Schalldämpfertrennwand angeordnet ist, die ein die obere Schalldämpferkammer mit der unteren Schalldämpferkammer verbindendes Dämpfungsrohr aufweist, welches mit einem oberen Rohrabschnitt mit einer oberen Öffnung in die obere Schalldämpferkammer ragt, wobei in der Schalldämpfertrennwand zumindest eine Ölbypass-Öffnung angeordnet ist, die die obere und untere Schalldämpferkammer verbindet.In particular, the object is also achieved by a sound damping device comprising a housing in which an upper silencer chamber and a lower silencer chamber are arranged, wherein the upper silencer chamber has an upper feed opening, which is connectable to the refrigerant circuit and having a lower discharge opening, which with the refrigerant circuit is connectable and wherein between the upper and lower muffler chamber a muffler partition is arranged, comprising a damping tube connecting the upper muffler chamber to the lower muffler chamber, which projects into the upper muffler chamber with an upper pipe section having an upper opening, wherein at least one oil bypass opening connecting the upper and lower muffler chambers is disposed in the muffler partition wall.
Ferner wird die Aufgabe auch von einer Schalldämpfungsvorrichtung gelöst, die ein Gehäuse umfasst, in dem eine linke Schalldämpferkammer und eine rechte Schalldämpferkammer angeordnet sind, wobei die linke Schalldämpferkammer eine linke Zufuhröffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist sowie eine rechte Abführöffnung aufweist, welche mit dem Kältemittelkreislauf verbindbar ist und daß zwischen der linken und rechten Schalldämpferkammer eine Schalldämpfertrennwand angeordnet ist, die ein die linke Schalldämpferkammer mit der rechten Schalldämpferkammer verbindendes Dämpfungsrohr aufweist, mit einem linken Rohrabschnitt mit einer linken Öffnung in die linke Schalldämpferkammer ragt, wobei in der Schalldämpfertrennwand in einem Bereich unterhalb der Höhe der linken Öffnung zumindest eine Ölbypass-Öffnung angeordnet ist, die die linke und rechte Schalldämpferkammer verbindet. Bei dieser Ausführungsform kann sich Öl im Bereich der unteren Gehäusewand akkumulieren, wobei allerdings durch die relativ niedrig angeordnete Ölbypass-Öffnung gewährleistet ist, dass dieses Öl sowohl in der linken als auch der rechten Schalldämpferkammer vorliegt und aus der rechten Schalldämpferkammer zusammen mit dem Kältemittel durch die rechte Abführöffnung abgeführt werden kann. Es versteht sich, dass hier die Begriffe "links" und "rechts" lediglich dazu dienen eine Richtung zu definieren. Daher umfasst die Erfindung auch eine Variante bei der eine Zufuhr von Kältemittel in eine rechte Schalldämpferkammer und eine Abfuhr von Kältemittel aus einer linken Schalldämpferkammer erfolgt.Furthermore, the object is also achieved by a sound damping device comprising a housing in which a left silencer chamber and a right silencer chamber are arranged, wherein the left silencer chamber has a left feed opening, which is connectable to the refrigerant circuit and has a right discharge opening, which with the refrigerant circuit is connectable and that between the left and right muffler chamber a Schalldämpfentrennwand is arranged, which has a left muffler chamber connecting the right muffler chamber damping tube, with a left pipe section with a left opening in the left muffler chamber protrudes, wherein in the muffler partition in a Area below the height of the left opening at least one oil bypass opening is arranged, which connects the left and right muffler chamber. In this embodiment, oil may accumulate in the region of the lower housing wall, but it is ensured by the relatively low arranged oil bypass opening that this oil is present in both the left and right muffler chamber and from the right muffler chamber together with the refrigerant through the right discharge opening can be removed. It goes without saying that the terms "left" and "right" merely serve to define a direction. Therefore, the invention also includes a variant in which a supply of refrigerant into a right silencer chamber and a discharge of refrigerant from a left silencer chamber.
Bei den beiden zuletzt beschriebenen Ausführungsformen der Erfindung ist ein Ölrückfluss zum Kompressor auch dann gewährleistet, wenn der Ölfüllstand des akkumulierten Öls noch nicht die Höhe der oberen bzw. linken Öffnung erreicht hat. Insbesondere wird auch erreicht, dass das Volumen der oberen Schalldämpferkammer nur in geringerem Maße durch akkumuliertes Öl im Betrieb vermindert wird.In the two last-described embodiments of the invention, an oil return to the compressor is ensured even if the oil level of the accumulated oil has not yet reached the height of the upper or left opening. In particular, it is also achieved that the volume of the upper muffler chamber is reduced to a lesser extent by accumulated oil during operation.
Vorteilhaft ist vorgesehen, dass das Schalldämpfungsrohr einen lichten Durchmesser D und die zumindest eine Ölbypass-Öffnung einen lichten Durchmesser d < D, insbesondere einen Durchmesser d < ½ D, aufweist. Wenn die Ölbypassöffnung einen lichten Durchmesser d < D aufweist, ist damit erreicht, dass die Dämpfungseigenschaften der Kammer weitgehend durch das Kammervolumen und das Dämpfungsrohr bestimmt werden und durch die Ölbypass-Öffnung nur in einem geringeren Maße.Advantageously, it is provided that the sound-damping tube has a clear diameter D and the at least one oil-bypass opening has a clear diameter d <D, in particular a diameter d <½ D. If the oil bypass opening has a clear diameter d <D, it is achieved that the damping properties of the chamber are largely determined by the chamber volume and the damping tube and by the oil bypass opening only to a lesser extent.
Vorteilhaft ist zur akustischen Optimierung der Vorrichtung vorgesehen, dass das Dämpfungsrohr mit einem unteren Rohrabschnitt mit einer unteren Öffnung in die untere Schalldämpferkammer ragt. Insbesondere weisen der obere und der untere Rohrabschnitt die gleiche Länge auf.It is advantageously provided for acoustic optimization of the device that the damping tube protrudes with a lower pipe section with a lower opening in the lower muffler chamber. In particular, the upper and lower pipe sections have the same length.
Analog ist vorgesehen, dass das Dämpfungsrohr mit einem rechten Rohrabschnitt mit einer rechten Öffnung in die rechte Schalldämpferkammer ragt.Analog is provided that the damping tube protrudes with a right pipe section with a right opening in the right muffler chamber.
Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass zumindest zwei Ölbypass-Öffnungen vorgesehen sind, womit eine schnellere Abgabe von Öl in die untere Schalldämpferkammer erreicht werden kann.Another embodiment of the invention is characterized in that at least two oil bypass openings are provided, whereby a faster discharge of oil into the lower silencer chamber can be achieved.
Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass die Schalldämpfertrennwand vom Innenbereich der oberen Schalldämpferkammer aus gesehen eine konkave Form aufweist, womit eine weitere Beschleunigung der Abgabe von Öl in die untere Schalldämpferkammer erreicht wird.A further embodiment of the invention is characterized in that the muffler separating wall seen from the interior of the upper muffler chamber has a concave shape, whereby a further acceleration of the delivery of oil into the lower muffler chamber is achieved.
Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass das Gehäuse als tief gezogener Topf aus einem Blechmaterial ausgebildet ist, womit das Gehäuse fertigungstechnisch einfach hergestellt werden kann.A further embodiment of the invention is characterized in that the housing is designed as a deep-drawn pot made of a sheet metal material, whereby the housing manufacturing technology can be easily manufactured.
Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass das Gehäuse einen kreisförmigen Querschnitt in einer Ebene senkrecht zu einer Längsachse des Gehäuses aufweist, womit ein fertigungstechnisch einfach herzustellendes Gehäuse rohrmechanischer Stabilität erreichbar ist, dessen akustische Dämpfungseigenschaften sehr einfach berechnet werden können.A further embodiment of the invention is characterized in that the housing has a circular cross-section in a plane perpendicular to a longitudinal axis of the housing, whereby a housing of tube mechanical stability which is easy to manufacture can be achieved, the acoustic damping properties of which can be calculated very simply.
Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass das Gehäuse einen ellipsoidförmigen Querschnitt in einer Ebene senkrecht zu einer Längsachse des Gehäuses aufweist, womit ein fertigungstechnisch einfach herzustellendes Gehäuse rohrmechanischer Stabilität erreichbar ist, dessen akustische Dämpfungseigenschaften sehr einfach berechnet werden können.A further embodiment of the invention is characterized in that the housing has an ellipsoidal cross-section in a plane perpendicular to a longitudinal axis of the housing, whereby a housing of tubular mechanical stability which is easy to produce can be achieved, the acoustic damping properties of which can be calculated very simply.
Weitere Vorteile, Merkmale und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezug auf die Zeichnung zumindest ein Ausführungsbeispiel im Einzelnen beschrieben wird. Beschriebene und/oder dargestellte Merkmale bilden für sich oder in beliebiger sinnvoller Kombination die Erfindung, gegebenenfalls auch unabhängig von den Patentansprüchen und können insbesondere auch Gegenstand einer oder mehrerer separater Erfindungen sein. Gleiche oder ähnliche Teile können mit gleichen Bezugszeichen versehen sein.Further advantages, features and details will become apparent from the following description in which at least one embodiment will be described in detail with reference to the drawing. Described and / or illustrated features, alone or in any meaningful combination, constitute the invention and, where appropriate, also independent of the patent claims and in particular may also be the subject of one or more separate ones Be inventions. The same or similar parts may be provided with the same reference numerals.
Es zeigen in schematischer Darstellung
- Figur 1
- eine Schalldämpfervorrichtung mit einer oberen Schalldämpfungskammer und einer unteren Schalldämpfungskammer
- Figur 2
- Schalldämpfervorrichtungen mit einem verbesserten Ölbypass.
- FIG. 1
- a muffler device with an upper silencer chamber and a lower silencer chamber
- FIG. 2
- Silencer devices with improved oil bypass.
In
In
Ein beschleunigter Abfluss von Öl aus der Kälteölansammlung 56 kann dadurch erreicht werden, dass die Trennwand 50 im Bereich der Ölbypass-Öffnung 55 abgesenkt ist bzw. eine vom Innenbereich der oberen Schalldämpferkammer 15 aus gesehen konkave Form aufweist, da in diesem Fall Kältemittelöl von den weiter von der Ölbypass-Öffnung 56 entfernten Bereichen der Trennwand 50 in den Bereich der Ölbypass-Öffnung 56 fließen kann. Es ist bevorzugt, dass das Schalldämpfungsrohr 40 einen lichten Durchmesser D und die Ölbypass-Öffnung 56 einen lichten Durchmesser d < D, insbesondere einen Durchmesser d < ½ D, aufweist.
An accelerated outflow of oil from the
- 11
- Schalldämpferanordnungmuffler assembly
- 1a, 1b1a, 1b
- Schalldämpferanordnungmuffler assembly
- 1010
- Gehäusecasing
- 10a10a
- untere Gehäusewandunglower housing wall
- 1515
- obere Schalldämpfungskammerupper silencer chamber
- 1616
- obere Zuführöffnungupper feed opening
- 1717
- Vorlaufleader
- 1818
- Kältemittelgas/ÖltröpfchengemischRefrigerant gas / oil droplets mixture
- 1919
- Kältemittelrefrigerant
- 2020
- untere Schalldämpfungskammerlower silencing chamber
- 2121
- Abführöffnungdischarge opening
- 2222
- Rücklaufreturns
- 3030
- Schalldämpfertrennwandsilencer partition
- 3131
- Ölansammlungoil accumulation
- 4040
- Dämpfungsrohrdamping pipe
- 4141
- oberer Abschnitt Dämpfungsrohrupper section damping tube
- 41 a41 a
- obere Öffnungupper opening
- 41 b41 b
- linke Öffnungleft opening
- 4242
- unterer Abschnitt Dämpfungsrohrlower section damping tube
- 42a42a
- untere Öffnunglower opening
- 42b42b
- rechte Öffnungright opening
- 5050
- Schalldämpfertrennwandsilencer partition
- 55, 55a, 55b55, 55a, 55b
- ÖlbypassöffnungOil bypass opening
- 56, 56a56, 56a
- Ölansammlungoil accumulation
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011108372A DE102011108372A1 (en) | 2011-07-22 | 2011-07-22 | Soundproofing in a refrigerant circuit |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2549108A2 true EP2549108A2 (en) | 2013-01-23 |
EP2549108A3 EP2549108A3 (en) | 2013-10-02 |
EP2549108B1 EP2549108B1 (en) | 2017-09-13 |
Family
ID=46319511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12004235.3A Active EP2549108B1 (en) | 2011-07-22 | 2012-06-04 | Acoustic damping in a coolant circuit |
Country Status (3)
Country | Link |
---|---|
US (1) | US8434586B2 (en) |
EP (1) | EP2549108B1 (en) |
DE (1) | DE102011108372A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108612650A (en) * | 2018-07-06 | 2018-10-02 | 安徽思源三轻智能制造有限公司 | A kind of split type pump case |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI1105162B1 (en) * | 2011-12-15 | 2021-08-24 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. | ACOUSTIC FILTER FOR ALTERNATIVE COMPRESSOR |
US9541301B2 (en) * | 2013-08-23 | 2017-01-10 | Hanon Systems | Silencer for a vehicle air conditioning system |
DE102014216196A1 (en) * | 2013-08-23 | 2015-02-26 | Halla Visteon Climate Control Corp. | Silencer for a vehicle air conditioning system |
BR202013024030Y1 (en) * | 2013-09-19 | 2019-10-01 | Embraco Indústria De Compressores E Soluções E Refrigeração Ltda. | CONSTRUCTIVE ARRANGEMENT INTRODUCED IN HERMETIC COMPRESSOR ACOUSTIC FILTER |
KR102620362B1 (en) * | 2016-08-31 | 2024-01-04 | 삼성전자주식회사 | Air conditioner |
US10030660B1 (en) * | 2017-05-31 | 2018-07-24 | Trane International Inc. | Pulsation and vibration control device |
CN111594414B (en) * | 2019-02-20 | 2021-06-29 | 安徽美芝制冷设备有限公司 | Silencer and compressor |
US12042423B2 (en) | 2020-10-07 | 2024-07-23 | Purewick Corporation | Fluid collection systems including at least one tensioning element |
US20220287868A1 (en) * | 2021-03-10 | 2022-09-15 | Purewick Corporation | Acoustic silencer for a urine suction system |
US12029677B2 (en) | 2021-04-06 | 2024-07-09 | Purewick Corporation | Fluid collection devices having a collection bag, and related systems and methods |
BE1030618B1 (en) * | 2022-06-13 | 2024-01-23 | Atlas Copco Airpower Nv | Intake silencer for a volumetric compressor and volumetric compressor equipped with it |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60304550T2 (en) | 2002-12-18 | 2006-11-02 | Kabushiki Kaisha Toyota Jidoshokki, Kariya | Vehicle air conditioning |
EP1811174A2 (en) | 2006-01-23 | 2007-07-25 | Kabushiki Kaisha Toyota Jidoshokki | Oil separation structure in compressor |
KR20080038784A (en) | 2006-10-31 | 2008-05-07 | 한라공조주식회사 | Muffler for air conditioner of vehicles |
DE102008050011A1 (en) | 2007-10-03 | 2009-05-07 | Denso Corp., Kariya-shi | Silencer for refrigerant circuit system |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1801721B1 (en) * | 1968-10-08 | 1970-10-01 | Danfoss As | Silencer for encapsulated refrigerant compressors |
US4370104A (en) * | 1980-07-22 | 1983-01-25 | White Consolidated Industries, Inc. | Suction muffler for refrigeration compressor |
US5077981A (en) * | 1991-04-26 | 1992-01-07 | Carrier Corporation | Method and apparatus for acoustic attenuation in variable speed compressors |
KR200141490Y1 (en) * | 1993-04-24 | 1999-05-15 | 김광호 | Noise-reducing apparatus of a compressor |
DE19522383C2 (en) * | 1995-06-23 | 1997-06-19 | Danfoss Compressors Gmbh | Suction silencer for a refrigerant compressor |
BR9601662A (en) * | 1996-05-10 | 1998-03-31 | Brasil Compressores Sa | Suction arrangement for hermetic reciprocating compressor |
JPH1162827A (en) * | 1997-08-21 | 1999-03-05 | Matsushita Electric Ind Co Ltd | Muffler for hermetic compressor |
KR100269951B1 (en) * | 1997-11-05 | 2000-10-16 | 배길성 | Sucking muffler of a compressor |
JPH11270326A (en) * | 1998-03-25 | 1999-10-05 | Taiko Kikai Industries Co Ltd | Delivery silencer with drain recovery function |
DE19923734C2 (en) * | 1999-05-22 | 2001-03-29 | Danfoss Compressors Gmbh | Suction silencer for a hermetically sealed compressor |
KR100390492B1 (en) * | 2000-07-13 | 2003-07-04 | 엘지전자 주식회사 | Apparatus for reducing noise of suction muffler in compressor |
KR100364741B1 (en) * | 2000-09-28 | 2002-12-16 | 엘지전자 주식회사 | Suction muffler of compressor |
DE10114327C2 (en) * | 2001-03-23 | 2003-07-03 | Danfoss Compressors Gmbh | suction silencer |
DE10128225C1 (en) * | 2001-06-11 | 2002-12-05 | Danfoss Compressors Gmbh | suction silencer |
US6840746B2 (en) * | 2002-07-02 | 2005-01-11 | Bristol Compressors, Inc. | Resistive suction muffler for refrigerant compressors |
KR100461231B1 (en) * | 2002-11-28 | 2004-12-17 | 삼성광주전자 주식회사 | Suction muffler for compressor |
KR100504983B1 (en) * | 2003-03-12 | 2005-08-01 | 삼성광주전자 주식회사 | A suction muffler for compressor, A compressor and A apparatus having refrigerant cycle circuit |
ES2376232T3 (en) * | 2003-05-15 | 2012-03-12 | Lg Electronics, Inc. | COMPRESSOR WITH ASPIRATION SILENCER. |
DE10323527B4 (en) * | 2003-05-24 | 2009-04-16 | Danfoss Compressors Gmbh | Refrigerant compressor |
DE10323526B3 (en) * | 2003-05-24 | 2005-02-03 | Danfoss Compressors Gmbh | Suction muffler for a hermetic refrigerant compressor |
KR20050059494A (en) * | 2003-12-15 | 2005-06-21 | 삼성광주전자 주식회사 | Hermetic compressor |
DE102006038726B4 (en) * | 2006-08-11 | 2011-06-09 | Visteon Global Technologies Inc., Van Buren | Refrigerant compressor for air conditioning and method for oil separation and pressure pulsation damping this |
US9404499B2 (en) * | 2006-12-01 | 2016-08-02 | Emerson Climate Technologies, Inc. | Dual chamber discharge muffler |
KR101527160B1 (en) | 2008-04-25 | 2015-06-10 | 삼성디스플레이 주식회사 | Etchant composition, method for forming metal patterns and method for manufacturing thin film transistor array panel using the same |
US8016071B1 (en) * | 2010-06-21 | 2011-09-13 | Trane International Inc. | Multi-stage low pressure drop muffler |
-
2011
- 2011-07-22 DE DE102011108372A patent/DE102011108372A1/en not_active Withdrawn
-
2012
- 2012-06-04 EP EP12004235.3A patent/EP2549108B1/en active Active
- 2012-07-20 US US13/554,162 patent/US8434586B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60304550T2 (en) | 2002-12-18 | 2006-11-02 | Kabushiki Kaisha Toyota Jidoshokki, Kariya | Vehicle air conditioning |
EP1811174A2 (en) | 2006-01-23 | 2007-07-25 | Kabushiki Kaisha Toyota Jidoshokki | Oil separation structure in compressor |
KR20080038784A (en) | 2006-10-31 | 2008-05-07 | 한라공조주식회사 | Muffler for air conditioner of vehicles |
DE102008050011A1 (en) | 2007-10-03 | 2009-05-07 | Denso Corp., Kariya-shi | Silencer for refrigerant circuit system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108612650A (en) * | 2018-07-06 | 2018-10-02 | 安徽思源三轻智能制造有限公司 | A kind of split type pump case |
Also Published As
Publication number | Publication date |
---|---|
US8434586B2 (en) | 2013-05-07 |
US20130020146A1 (en) | 2013-01-24 |
EP2549108B1 (en) | 2017-09-13 |
EP2549108A3 (en) | 2013-10-02 |
DE102011108372A1 (en) | 2013-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2549108B1 (en) | Acoustic damping in a coolant circuit | |
EP1715189B1 (en) | Noise attenuator designed and meant for a compressor | |
DE102013201313A1 (en) | Internal heat exchanger for air conditioner of motor vehicle, has high pressure side and low pressure side, where heat exchanger is formed in spatial-bodily manner so that pulsations of passed through refrigerants are predominantly damped | |
DE102006038726B4 (en) | Refrigerant compressor for air conditioning and method for oil separation and pressure pulsation damping this | |
EP1959106B2 (en) | Silencer for an exhaust system | |
EP2828528B1 (en) | Refrigerant compressor | |
DE102013223992B4 (en) | Universal damping device for an air conditioning circuit | |
DE102015222088A1 (en) | Silencer for an exhaust system | |
EP2196640A2 (en) | Silencer | |
DE102014100347A1 (en) | Pressure pulse attenuator | |
DE2908506A1 (en) | MUFFLER FOR COMBUSTION ENGINES | |
DE102008032491B4 (en) | External slot damper | |
DE102010022780A1 (en) | Wide band damper for use in suction region of internal combustion engine for suppression of combustion air inflow noise, has acoustic openings that are formed along same axis such that molding tools are taken into openings along axis | |
DE102011100014A1 (en) | silencer | |
DE10254631B4 (en) | Silencer for an exhaust system of an internal combustion engine | |
EP3061931A1 (en) | Exhaust gas system for a combustion engine | |
DE6608356U (en) | EXHAUST SYSTEM WITH SILENCER. | |
DE102012207198B4 (en) | Device for reducing noise emissions from air intake pipes | |
DE102005033421A1 (en) | Silencer for use in exhaust system of motor vehicle, has helmholtz chamber and resonator pipe, where cross section of resonator pipe at one end of helmholtz chamber differs from cross section of pipe at another end | |
DE102018207216A1 (en) | Device for damping pressure fluctuations | |
DE102009000494B4 (en) | Silencer with helical gas channel | |
DE102014101144B4 (en) | reflection silencer | |
DE102020118749A1 (en) | Silencer of an exhaust system | |
DE102015108801A1 (en) | Exhaust system for a motor vehicle and motor vehicle | |
DE102022001220A1 (en) | Damping device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F04B 53/00 20060101AFI20130826BHEP Ipc: F04C 29/06 20060101ALI20130826BHEP |
|
17P | Request for examination filed |
Effective date: 20140402 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170407 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 928435 Country of ref document: AT Kind code of ref document: T Effective date: 20171015 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502012011237 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20170913 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171213 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171214 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171213 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180113 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502012011237 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
26N | No opposition filed |
Effective date: 20180614 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20180604 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180630 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180604 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180630 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180604 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180604 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180630 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 928435 Country of ref document: AT Kind code of ref document: T Effective date: 20180604 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180604 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20120604 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170913 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170913 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240630 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240625 Year of fee payment: 13 |