Exhaust gas turbocharger for an internal combustion engine and device for switching an air guiding device of an exhaust gas turbocharger
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-037/22
F02B-033/34
F02B-039/00
출원번호
US-0328047
(2008-12-04)
등록번호
US-8156741
(2012-04-17)
우선권정보
DE-10 2007 058 615 (2007-12-04)
발명자
/ 주소
Talmon-Gros, Dietmar
Huurdeman, Bernhard
Franz, Andreas
Fledersbacher, Peter
Sumser, Siegfried
출원인 / 주소
Mann + Hummel GmbH
인용정보
피인용 횟수 :
1인용 특허 :
4
초록▼
An exhaust gas turbocharger for an internal combustion engine has a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor. A switchable air guiding device is arranged upstream of the compressor, wherein th
An exhaust gas turbocharger for an internal combustion engine has a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor. A switchable air guiding device is arranged upstream of the compressor, wherein the switchable air guiding device supplies an air flow to the compressor in at least two different ways. The air guiding device has at least two components, wherein the at least two components are substantially made from plastic material.
대표청구항▼
1. An exhaust gas turbocharger for an internal combustion engine, the exhaust gas turbocharger comprising: a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor;a switchable air guiding device including
1. An exhaust gas turbocharger for an internal combustion engine, the exhaust gas turbocharger comprising: a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor;a switchable air guiding device including a switching damper arranged upstream of the compressor,wherein the switchable air guiding device is adapted to supply an air flow to the compressor in at least two different ways;wherein the air guiding device is comprised of at least two components,wherein the at least two components are substantially comprised of plastic material,wherein the switching damper has a pivot axis that is parallel to a main flow direction of the air flow and pivots essentially at a right angle to the main flow direction into the power passage for closing the power passage. 2. The exhaust gas turbocharger according to claim 1, wherein the air guiding device comprises a swirl passage arranged upstream of the compressor andwherein the swirl passage has a volute. 3. The exhaust gas turbocharger according to claim 2, wherein the volute is formed by a housing of the air guiding device. 4. The exhaust gas turbocharger according to claim 2, wherein the volute is formed by a housing of the compressor. 5. The exhaust gas turbocharger according to claim 2, wherein the volute is divided and is partly formed by a housing of the air guiding device and partly formed by a housing of the compressor. 6. The exhaust gas turbocharger according to claim 1, wherein the at least two components of the air guiding device form a housing of the air guiding device,wherein one of the at least two components is provided with a switching device, andwherein a first component of the at least two components is a center part and a second component of the at least two components is a top part with a flange. 7. The exhaust gas turbocharger according to claim 6, wherein the switching damper is switchable into a first and a second end positions. 8. The exhaust gas turbocharger according to claim 7, wherein the switching damper is switchable into intermediate positions between the first and second end positions. 9. The exhaust gas turbocharger according to claim 7, wherein stops are provided that define the first and second end positions. 10. The exhaust gas turbocharger according to claim 7, wherein the switching device comprises a switching lever and a pushrod for moving the switching damper,wherein stops are provided that act on the switching lever or the pushrod and define the first and second end positions. 11. The exhaust gas turbocharger according to claim 1, wherein the switching damper in an open position does not impair the air flow because the switching damper is pivoted into an intermediate space provided outside of a path of the air flow. 12. The exhaust gas turbocharger according to claim 1, wherein a third component of the at least two components of the air guiding device is arranged at an exit side of the air guiding device,wherein the air guiding device further comprises a rigid guide baffle arranged in the third component,wherein the air guiding device comprises a first passage that is a swirl passage anda second passage,wherein air permanently flows through the swirl passage and passes through the guide baffle, and wherein temporarily an air flow flowing though the second passage is switched to the air flow of the first passage, depending on an operating state of the internal combustion engine. 13. The exhaust gas turbocharger according to claim 1, wherein the switching damper is slidably supported along the pivot axis. 14. An exhaust gas turbocharger for an internal combustion engine, the exhaust gas turbocharger comprising: a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor;a switchable air guiding device including a switching damper arranged upstream of the compressor;wherein the switchable air guiding device is adapted to supply an air flow to the compressor in at least two different ways,wherein the air guiding device is comprised of at least two components,wherein the at least two components of the air guiding device form a housing of the air guiding device,wherein one of the at least two components is provided with a switching device, andwherein a first component of the at least two components is a center part and a second component of the at least two components is a top part with a flange,wherein the air guiding device comprises a seal disk that is arranged between the switching damper anda component adjoining the compressor,wherein the seal disk is tribologically optimized and surrounds an inlet of the power passage in the area of the switching damper,wherein the switching damper in a closed position of the power passage is pressed against the seal disk by a pressure differential acting on the switching damper. 15. An exhaust gas turbocharger for an internal combustion engine, the exhaust gas turbocharger comprising: a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor;a switchable air guiding device including a switching damper arranged upstream of the compressor;wherein the switchable air guiding device is adapted to supply an air flow to the compressor in at least two different ways,wherein the air guiding device is comprised of at least two components,wherein the at least two components of the air guiding device form a housing of the air guiding device,wherein one of the at least two components is provided with a switching device, andwherein a first component of the at least two components is a center part and a second component of the at least two components is a top part with a flange,wherein the switching damper has a pivot axis that is parallel to a main flow direction of the air flow and pivots essentially at a right angle to the main flow direction into the power passage for closing the power passage. 16. The exhaust gas turbocharger according to claim 15, wherein the switching damper is slidably supported along the pivot axis. 17. An exhaust gas turbocharger for an internal combustion engine, the exhaust gas turbocharger comprising: a compressor arranged in an intake tract of an internal combustion engine for precompression of air passing through the intake tract to the compressor;a switchable air guiding device including a switching damper arranged upstream of the compressor;wherein the switchable air guiding device is adapted to supply an air flow to the compressor in at least two different ways,wherein the air guiding device is comprised of at least two components,wherein the at least two components of the air guiding device form a housing of the air guiding device,wherein one of the at least two components is provided with a switching device, andwherein a first component of the at least two components is a center part and a second component of the at least two components is a top part with a flange,wherein the switching damper in an open position does not impair the air flow because the switching damper is pivoted into an intermediate space provided outside of a path of the air flow. 18. The exhaust gas turbocharger according to claim 17, wherein a third component of the at least two components of the air guiding device is arranged at an exit side of the air guiding device,wherein the air guiding device further comprises a rigid guide baffle arranged in the third component,wherein the air guiding device comprises a first passage that is a swirl passage anda second passage,wherein air permanently flows through the swirl passage and passes through the guide baffle, and wherein temporarily an air flow flowing though the second passage is switched to the air flow of the first passage, depending on an operating state of the internal combustion engine.
Kemmerling, Joerg; Sommerhoff, Franz Arnd; Kuske, Andreas; Kindl, Helmut Matthias; Smiljanovski, Vanco; Brinkmann, Franz J., Exhaust gas passage with aftertreatment system.
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