Turbine for an exhaust gas turbocharger and exhaust gas turbocharger having such a turbine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-023/00
F01D-017/14
F02M-025/07
F02B-037/02
F02B-037/18
F02B-037/22
출원번호
US-0963895
(2013-08-09)
등록번호
US-9021803
(2015-05-05)
우선권정보
DE-10 2011 010 744 (2011-02-09)
발명자
/ 주소
Hirth, Thorsten
Sumser, Siegfried
Weber, Siegfried
출원인 / 주소
Daimler AG
대리인 / 주소
Bach, Klaus J.
인용정보
피인용 횟수 :
2인용 특허 :
5
초록▼
In a turbine for an exhaust gas turbocharger having a turbine housing with a turbine rotor rotatable supported therein and including spiral channels for directing exhaust gas onto the turbine wheel, at least one annular blocking element is supported between the spiral channels and the turbine wheel
In a turbine for an exhaust gas turbocharger having a turbine housing with a turbine rotor rotatable supported therein and including spiral channels for directing exhaust gas onto the turbine wheel, at least one annular blocking element is supported between the spiral channels and the turbine wheel so as to be rotatable in the peripheral direction of the turbine wheel and additionally movable in the axial direction of the turbine wheel for a controlling the exhaust gas flow to the turbine wheel between impulse turbine mode when extended into the space between the turbine wheel and the spiral chamber and an accumulation made when retracted, with the gas flow through the turbine wheel or by-passing the turbine wheel being adjustable by rotation of the blocking element.
대표청구항▼
1. A turbine (10) for an exhaust gas turbocharger of an internal combustion engine having a turbine housing (12) with an accommodation space (28), a turbine wheel (26) rotatably supported in the accommodation space (28), the housing (12) further including a spiral channel (18, 20, 22, 24) through wh
1. A turbine (10) for an exhaust gas turbocharger of an internal combustion engine having a turbine housing (12) with an accommodation space (28), a turbine wheel (26) rotatably supported in the accommodation space (28), the housing (12) further including a spiral channel (18, 20, 22, 24) through which exhaust gas may flow, the spiral channel having a flow cross-section (A) for directing the exhaust gas flow onto the turbine wheel (26) which is supported in the accommodation space (28) so as to be rotatable about a rotational axis (30), at least one blocking element (40) arranged rotatably around the turbine wheel in the flow cross-section (A) and also being movable in the axial direction (36) of the turbine wheel (26) between at least a first, extended position and a second, retracted position, the turbine housing (12) having at least two ducts (14, 16) and the turbine (10) being operable in an impulse turbine mode in the extended axial positions of the blocking element (40) and in a back-pressure or accumulation turbine mode in the retracted axial position of the blocking element (40), the turbine (10) having a throughput parameter (φ) which, in the impulse turbine mode, is adjustable by rotation of the blocking element (40) in the extended position and which, in the accumulation turbine mode, is adjustable by rotation of the blocking element (40) in its retracted position. 2. The turbine (10) according to claim 1, wherein in the axial direction (36) the blocking element (40) is movable solely between the first position, in which the blocking element (40) is situated, at least in parts, in a turbine wheel inlet area (58), and the second position, in which the blocking element is at a distance from, in particular completely remote from, the turbine wheel inlet area (58) with respect to the first position. 3. The turbine (10) according to claim 2, wherein for moving from the first position into the second position the blocking element (40) is movable in the direction (88) of a turbine outlet (86) of the turbine (10), and for moving from the second position into the first position the blocking element is movable in the opposite direction (92). 4. The turbine (10) according to claim 1, wherein the blocking element (40) is connected to an adjusting part (42) which is movable together with the blocking element (40), by means of which the blocking element (40) is rotatable and axially movable, wherein a bypass channel (48) of the turbine (10) via which exhaust gas may bypass the turbine wheel (26) is fluidly blocked in one of the positions by means of the adjusting part (42), but at least partially open in the other of the positions by means of the adjusting part (42). 5. The turbine (10) according to claim 4, wherein the flow cross-section (Au) of the bypass channel (48) is adjustable in the other position by the adjusting part (42). 6. The turbine (10) according to claim 5, wherein the bypass channel (48) may be fluidly blocked or opened by rotating the adjusting part (42) in a first rotational direction, the first rotational direction of the adjusting part (42) being opposite from a second rotational direction. 7. The turbine (10) according to claim 1, wherein a receiving part (72) is provided in which the blocking element (40) is accommodated, at least in parts, in one of the positions, the receiving part (72) being fixed in the axial direction (36) and rotatable in the peripheral direction (24) of the accommodation space (28). 8. An exhaust gas turbocharger for an internal combustion engine having a turbine (10) with a turbine housing (12) including an accommodation space (28), a turbine wheel (26) rotatably supported in the accommodation space (28), the housing (12) further including a spiral channel (18, 20, 22, 24) through which exhaust gas may flow, the spiral channel having a flow cross-section (A) for directing the exhaust gas flow onto the turbine wheel (26) which is supported in the accommodation space (28) so as to be rotatable about a rotational axis (30), at least one blocking element (40) arranged rotatably around the turbine wheel in the flow cross-section (A) and also being movable in the axial direction (36) of the turbine wheel (26) between at least a first, extended position and a second, retracted position, the turbine housing (12) having at least two ducts (14, 16) and the turbine (10) being operable in an impulse turbine mode in the extended axial positions of the blocking element (40) and in a backpressure or accumulation turbine mode in the retracted axial position of the blocking element (40), the turbine (10) having a throughput parameter (0) which, in the impulse turbine mode, is adjustable by rotation of the blocking element (40) in the extended position and which, in the accumulation turbine mode, is adjustable by rotation of the blocking element (40) in its retracted position.
Schmidt Erwin (Baltmannsweiler DEX) Treutlein Wolfgang (Kirchheim DEX) Frnkle Gerhard (Remshalden DEX) Schmitt Thomas (Leutenbach DEX), Flow control apparatus for a turbocharger turbine.
Rodriguez Erdmenger, Rodrigo; Freund, Sebastian Walter; Sezal, Ismail Hakki; Vadvadgi, Aneesh Sridhar, Moveable nozzle assembly and method for a turbocharger.
Kindl, Helmut Matthias; Schorn, Norbert Andreas; Smiljanovski, Vanco; Sommerhoff, Franz Arnd; Kuske, Andreas; Kemmerling, Joerg, System and method for variable tongue spacing in a multi-channel turbine in a charged internal combustion engine.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.