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CN-115151714-B - Separator for liquid from a gas stream and assembly kit for a separator

CN115151714BCN 115151714 BCN115151714 BCN 115151714BCN-115151714-B

Abstract

The invention relates to a separator (10) for separating liquids from a gas flow, in particular for separating oil from blow-by gases in a crankcase ventilation system (200), having at least one nozzle carrier element (102) with at least one nozzle assembly (104) with at least one nozzle (106, 108), and having an impact element (110) arranged at least partially downstream with respect to the nozzle assembly (104), characterized in that one or more nozzles (108) of the nozzle assembly (104) are provided with a permanent covering device (120, 122, 124, 126) which reduces the through-flow of the gas flow through the one or more nozzles (108) by at least 50% with respect to a nozzle (106) without a covering device (120, 122, 124, 126). Furthermore, the invention relates to an assembly kit for a separator (10).

Inventors

  • K. Chandra Kumar
  • C.R. Antuomeng
  • R.D. Servey
  • T. Schleiden

Assignees

  • 曼·胡默尔有限公司

Dates

Publication Date
20260508
Application Date
20210205
Priority Date
20200226

Claims (20)

  1. 1. A separator (10) for separating a liquid from a gas flow, the separator having at least one nozzle carrier element (102) which has at least one nozzle assembly (104) with at least one nozzle (106, 108) and which has an impact element (110) which is arranged at least partially downstream with respect to the nozzle assembly (104), characterized in that one or more nozzles (108) of the nozzle assembly (104) is provided with permanent covering means (120, 122, 124, 126) which reduce the throughflow of the gas flow through the one or more nozzles (108) by at least 50% relative to a nozzle (106) without covering means (120, 122, 124, 126), the covering means not being a valve body which can change its position in operation but is fixedly set and does not change in all operating states, wherein the nozzle carrier element (102) and the impact element (110) have positioning means (130) with complementary positioning elements (132, 134), with which the positioning means (120, 124, 126) can be rotated between the nozzle (120, 124) and the nozzle assembly (120) is fixed.
  2. 2. The separator according to claim 1, characterized in that the downstream distance between the nozzle (108) and the cover device (120) with respect to the nozzles (106, 108) is at least 50% smaller than the downstream distance between the impact element (110) and the nozzle (106) without the cover device (120).
  3. 3. A separator (10) for separating a liquid from a gas flow, the separator having at least one nozzle carrier element (102) which has at least one nozzle assembly (104) with at least one nozzle (106, 108) and which has an impact element (110) which is arranged at least partially downstream with respect to the nozzle assembly (104), characterized in that one or more nozzles (108) of the nozzle assembly (104) is provided with permanent covering means (120, 122, 124, 126) which reduce the throughflow of the gas flow through the one or more nozzles (108) by at least 50% relative to a nozzle (106) without covering means (120, 122, 124, 126), the covering means not being a valve body which can change its position in operation but is fixedly set and does not change in all operating states, wherein the nozzle carrier element (102) and the covering means (120, 122) have positioning means (130) with complementary positioning elements (132, 134), with which the positioning means (120, 122) can be rotated between the nozzle assembly (120, 122) and the covering means.
  4. 4. A separator according to claim 3, wherein the cover device (122, 124) is arranged upstream of the nozzle assembly (104).
  5. 5. The separator according to claim 4, characterized in that the upstream distance between the nozzle (108) and the cover device (122, 124) with respect to the nozzle (106, 108) is at least 50% smaller than the upstream distance between the impact element (110) and the nozzle (106) without the cover device (122, 124).
  6. 6. A separator according to claim 1 or 3, characterized in that the nozzle carrier element (102) has a receptacle in which the impact element (110) is arranged.
  7. 7. A separator according to claim 1 or 3, characterized in that the nozzle carrier element (102) is arranged in a receptacle of a liquid reservoir (50).
  8. 8. A separator according to claim 1 or 3, characterized in that the cover device (120) is integrated into the impact element (110).
  9. 9. A separator according to claim 1 or 3, characterized in that the cover device (122) is configured as a flat ring.
  10. 10. A separator according to claim 1 or 3, characterized in that the cover device (124) is configured as an annular body with a circular or polygonal cross-section.
  11. 11. A separator according to claim 1 or 3, characterized in that the cover device (126) is configured as a baffle.
  12. 12. A separator according to claim 1 or 3, characterized in that the impact element (110) and the nozzle carrier element (102) are arranged concentrically or coaxially around an axis (150).
  13. 13. A separator according to claim 1 or 3, characterized in that the nozzle assembly (104) is arranged as a circular or ring segment in the nozzle carrier element (102).
  14. 14. The separator according to claim 13, wherein the nozzle carrier element (102) and the impact element (110) are arranged perpendicular to an axis (150).
  15. 15. A separator according to claim 1 or 3, characterized in that the nozzle assembly (104) is arranged in a wall section (109) of the nozzle carrier element (102) configured parallel to the axis (150).
  16. 16. The separator according to claim 15, wherein the nozzle carrier element (102) and the impact element (110) are arranged parallel to the axis (150).
  17. 17. A separator according to claim 1 or 3, characterized in that the separator (10) is arranged to separate oil from blow-by gases in the crankcase ventilation system (200).
  18. 18. An assembly kit for a separator (10) according to any of the preceding claims, comprising at least: A nozzle carrier element (102) having at least one nozzle assembly (104) with at least one nozzle (106, 108); an impingement element (110) for being arranged downstream of the nozzle assembly (104); A cover device (120, 122, 124, 126) for one or more nozzles (108) of a nozzle assembly (104), the cover device reducing the through-flow of a gas flow through the one or more nozzles (108) by at least 50% relative to a nozzle (106) without the cover device (120, 122, 124, 126); and a liquid reservoir (50) for liquid separated from the gas stream, wherein at least the nozzle carrier element (102), the impact element (110) and the liquid reservoir (50) are provided as a common piece for different nozzle assemblies (104) and/or different numbers of nozzles (106, 108).
  19. 19. Assembly kit according to claim 18, comprising complementary positioning elements (132, 134) on the nozzle carrier element (102) and the impact element (110), with which the relative position between the cover device (120, 122, 124, 126) and the nozzle assembly (104) can be fixed.
  20. 20. Assembly kit according to claim 18 or 19, wherein the cover device (124) coaxially encloses the nozzle carrier element (102).

Description

Separator for liquid from a gas stream and assembly kit for a separator Technical Field The invention relates to a separator for liquid from a gas stream and an assembly kit (Montagekit) for a separator. Background In the case of a reciprocating piston internal combustion engine, an oil-containing blow-by gas, the so-called blow-by gas, is generated in the crankcase. The return of the blow-by gases into the combustion process is legal worldwide and takes place in so-called closed crankcase ventilation systems. The most important tasks of the crankcase ventilation system include oil separation and oil return routing into the crankcase and regulation of crankcase pressure. In this case, as a result of the exhaust gas regulations becoming more stringent, the demands for oil separation have increased continuously over the last few years in order to protect engine components (such as exhaust gas turbochargers, charge air coolers or sensors) which are important for emissions from power losses due to oil pollution. Oil separation not only contributes in minimizing oil consumption, but also in complying with exhaust emission regulations during vehicle life. An oil separator with a replaceable filter element is known from EP 3100780 A1. Disclosure of Invention The object of the present invention is to provide a suitable separator for liquids from a gas flow, which separator is suitable as a life-span component. Another object is to provide an assembly kit for such a separator. According to one aspect of the invention, the above-mentioned object is achieved by a separator for separating liquid from a gas flow, in particular for separating oil from blow-by gases in a crankcase ventilation system, having at least one nozzle carrier element with at least one nozzle assembly with at least one nozzle, and having an impact element (PRALLELEMENT) arranged at least partially downstream with respect to the nozzle assembly, wherein one or more nozzles of the nozzle assembly are provided with a durable covering device which reduces the through-flow of the gas flow through the nozzle or nozzles by at least 50% compared to a nozzle without a covering device. The permanent cover for the nozzle or nozzles of the nozzle assembly may be changed within the scope of the first assembly of the separator or in repeated maintenance. Here, the cover can be removed completely or partially from the individual nozzles of the nozzle assembly. No function as a control or regulating mechanism, such as a valve, is provided. The cover device is not a valve body, which can change its position during operation, but is fixedly set and does not change in all operating states. This further object is achieved by an assembly kit for a separator, comprising at least a nozzle carrier element having at least one nozzle assembly with at least one nozzle, an impact element for arranging downstream of the nozzle assembly, a cover device for one or more nozzles of the nozzle assembly, which reduces the through-flow of the gas flow through the one or more nozzles by at least 50% relative to a nozzle without the cover device, wherein at least the nozzle carrier element, the impact element and/or the liquid reservoir are provided as a common part for different nozzle assemblies or different numbers of nozzles. Suitable embodiments and advantages of the invention emerge from the other claims, the description and the figures. The invention relates to a separator for separating liquids from a gas flow, in particular for separating oil from blow-by gases in crankcase ventilation systems, having at least one nozzle carrier element with at least one nozzle assembly having at least one nozzle, and having an impingement element arranged at least partially downstream relative to the nozzle assembly. A durable cover device is provided for one or more nozzles of the nozzle assembly, which reduces the through-flow of the gas flow through the one or more nozzles by at least 50% compared to nozzles without the cover device. Preferably, the throughflow of the gas flow is reduced by at least 80%, particularly preferably by at least 95%. By virtue of the fact that it is possible to determine which nozzles can be freely flown through and which nozzles can be flown through less or even not when the separator is assembled, it is possible to form a completely different through-flow separator for a gas flow from a minimum gas flow to a maximum gas flow with the same type of components. Thus, for example, separators of different power classes for internal combustion engines can be manufactured with the same type of component. Advantageously, the separator may be designed without a filter element and the separated liquid is directly discharged or the separated liquid is collected in a reservoir. There is no need to replace the filter element and thus at least partially disassemble the separator. Alternatively, however, the filter element may be connected downstream of the separator. Accor