Compressor in an exhaust gas turbocharger of an internal combustion engine and method for operating the compressor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-033/44
F02B-037/00
F02B-037/013
F02B-037/04
F04D-025/04
F04D-025/02
F04D-027/00
F01D-017/14
F01D-017/00
F16D-027/00
F02C-006/12
F02C-006/00
출원번호
US-0656020
(2007-01-19)
등록번호
US-7506508
(2009-03-24)
우선권정보
DE-10 2004 035 044(2004-07-20)
발명자
/ 주소
Sumser,Siegfried
Fledersbacher,Peter
Roessler,Klaus
출원인 / 주소
Daimler AG
대리인 / 주소
Bach,Klaus J.
인용정보
피인용 횟수 :
2인용 특허 :
9
초록▼
In a compressor of an exhaust gas turbocharger for an internal combustion engine including a compressor wheel which is rotatably mounted in a compressor inlet duct and an auxiliary rotor wheel arranged so as to be movable axially between a coupled position in engagement with the compressor wheel and
In a compressor of an exhaust gas turbocharger for an internal combustion engine including a compressor wheel which is rotatably mounted in a compressor inlet duct and an auxiliary rotor wheel arranged so as to be movable axially between a coupled position in engagement with the compressor wheel and a decoupled position, disengaged from the compressor wheel, an adjustable guide vane structure is provided which is movable by an adjusting element together with the auxiliary rotor wheel and a contoured flow control ring for controlling the combustion air flow to the compressor wheel and to the auxiliary rotor wheel.
대표청구항▼
What is claimed is: 1. A method for operating a compressor for an internal combustion engine, the compressor comprising a compressor wheel (8) rotatably supported in an inlet duct (19) of the compressor (5), a coaxial auxiliary rotor wheel (10) arranged in the inlet housing (19) so as to be axially
What is claimed is: 1. A method for operating a compressor for an internal combustion engine, the compressor comprising a compressor wheel (8) rotatably supported in an inlet duct (19) of the compressor (5), a coaxial auxiliary rotor wheel (10) arranged in the inlet housing (19) so as to be axially movable between a coupled position with the compressor wheel (8) and a decoupled position, wherein, in the coupled position, the compressor wheel (8) and the auxiliary rotor wheel (10) are rotationally fixedly connected, and, in the decoupled position, the auxiliary rotor wheel (10) is decoupled from the compressor wheel (8), and an adjustable guide vane structure (21) for variably adjusting the effective inlet flow cross section to the auxiliary rotor wheel (10) arranged in the compressor inlet duct (19) upstream of the auxiliary rotor wheel (10), said method comprising the steps of: at low engine loads and low engine speeds, moving the auxiliary rotor wheel (10) into the coupled position with the compressor wheel (8) and moving the guide vane structure (21) into the blocking position, at low engine loads and mid-range engine speeds, moving the auxiliary rotor wheel (10) into the coupled position with the compressor wheel (8) and moving the guide vane structure (21) into an opening position, and at high engine loads, decoupling the auxiliary rotor wheel (10) from the compressor wheel (8). 2. A compressor in an exhaust gas turbocharger for an internal combustion engine, including a compressor housing with an inlet duct (19), a compressor wheel (8) rotatably supported in the compressor inlet duct (19), an auxiliary rotor wheel (10) disposed in the inlet duct (19) upstream of the compressor wheel (8) and coaxially with the compressor wheel (8), the auxiliary rotor wheel (10) being axially movable between a coupled position with the compressor wheel (8) and a decoupled position, wherein, in the coupled position, the compressor wheel (8) and the auxiliary rotor wheel (10) are rotationally engaged and, in the decoupled position, the auxiliary compressor wheel (10) is decoupled from the compressor wheel (8), an adjustable guide vane structure (21) for variably adjusting the effective inlet flow cross-section to the auxiliary rotor wheel (10) arranged in the compressor inlet duct (19), and a common adjusting element (11) for adjusting the axial position of the auxiliary rotor wheel (10) and the position of the guide vane structure (21). 3. The compressor as claimed in claim 2, wherein the adjusting element (11) is arranged axially displaceably in the compressor inlet duct (19) in axial alignment with the auxiliary rotor wheel (10). 4. The compressor as claimed in claim 3, wherein the auxiliary rotor wheel (10) includes an engagement element (26) which, upon movement of the auxiliary rotor wheel (10) toward the compressor wheel (8) by the adjusting element (11), initially moves the auxiliary rotor wheel (10) from the decoupled position into the coupled position, and subsequently, upon further movement of the auxiliary rotor wheel (10), the vane structure (21) is moved from a maximum opening position to a blocking position. 5. The compressor as claimed in claim 2, wherein the guide vane structure (21) is supported by a contoured ring (22) which is movable into contact with a housing wall section (30) of the compressor inlet duct (19). 6. The compressor as claimed in claim 4, wherein, in the blocking position, the vane structure grating (21) is received in a die plate (23), and a spring element (25) is disposed between the die plate (23) and the guide vane structure (21) for biasing the guide vane structure (21) into the opening position out of the die plate (23). 7. The compressor as claimed in claim 2, wherein a second guide vane structure (34) is provided in the compressor inlet duct (19), the second guide vane structure (34) being arranged between the auxiliary rotor wheel (10) and the compressor wheel (8). 8. The compressor as claimed in claim 5, wherein the second guide vane structure (34) is supported on the contoured ring (22). 9. The compressor as claimed in claim 2, wherein the auxiliary rotor wheel (10) is a turbine wheel with a radial flow inlet. 10. The compressor as claimed in claim 2, wherein the auxiliary rotor wheel (10) includes the coupling element (26) which, in the coupled position, is rotationally fixedly coupled to the compressor wheel (8). 11. The compressor as claimed in claim 10, wherein the coupling element (26) is axially movably supported by the auxiliary rotor wheel (10), and a spring element (27) is arranged between the coupling element (26) and the auxiliary rotor wheel (10) biasing the coupling element (26) toward the compressor wheel (8). 12. The compressor as claimed in claim 11, wherein the coupling element (26) is a friction cone which, in the coupled position, is in frictional contact with the compressor wheel (8).
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이 특허에 인용된 특허 (9)
Finger, Helmut; Fledersbacher, Peter; Loffler, Paul; Sumser, Siegfried; Wirbeleit, Friedrich, Exhaust gas turbocharger for an internal combustion engine.
Sumser, Siegfried; Fledersbacher, Peter; Wirbeleit, Friedrich; Willand, Juergen; Lehmann, Hans-Georg, Exhaust gas turbocharger for an internal combustion engine and a corresponding method.
Peter Fledersbacher DE; Paul Loffler DE; Siegfried Sumser DE; Friedrich Wirbeleit DE, Exhaust gas turbocharger for an internal combustion engine and a method for operating an exhaust gas turbocharger.
Wimmer, Christian; Odenthal, Dirk; Sailer, Michael, Control system for a motor vehicle having an electronic control unit by which the drive torque of a drive unit can be variably distributed, as required, on at least two axles.
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