Turbine for an exhaust turbocharger having a two-volute turbine housing and a linear valve for volute connection and wastegate control

A technology for turbine casings and exhaust gas turbines, which is applied in the direction of machines/engines, lift valves, valve devices, etc., can solve problems such as large structures, and achieve the effect of reducing space requirements and saving space layout

Active Publication Date: 2018-12-21
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The known wastegate valves actuated in translation have the disadvantage that the required actuation shaft must be guided over a certain length within the housing, which generally requires a bulky construction

Method used

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  • Turbine for an exhaust turbocharger having a two-volute turbine housing and a linear valve for volute connection and wastegate control
  • Turbine for an exhaust turbocharger having a two-volute turbine housing and a linear valve for volute connection and wastegate control
  • Turbine for an exhaust turbocharger having a two-volute turbine housing and a linear valve for volute connection and wastegate control

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Embodiment Construction

[0041] The invention provides a turbine for an exhaust gas turbocharger, the turbine having a turbine housing comprising two volutes through which exhaust gas can flow and between which Partition walls are provided between the shells. Furthermore, a wastegate valve designed as a linear valve with a linear valve element is provided. The linear valve element is connected to a displacement shaft 33 for actuating the linear valve element 35a, the displacement shaft 33 having a shaft longitudinal axis 33a. The displacement shaft 33 is guided through the partition wall 21 to the outside of the turbine housing 9 in the direction of the partition wall plane spanned by the partition wall and is arranged to be movable in the partition wall 21 in the axial direction of its shaft longitudinal axis 33a. Move to guide. In order to close the wastegate outlet 30, the linear valve element 35a is guided from the direction of the outlet chamber 31, ie from the outside of the volute 22, 23, tow...

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Abstract

The invention relates to a turbine (3) for an exhaust turbocharger, having a turbine housing (9), which has two volutes (22, 23), through which an exhaust gas can flow and which are separated by a separating wall (21), and having only one wastegate valve (32) for both volutes (22, 23), which is designed as a linear valve (35) and which has a linear valve element (35a), wherein the linear valve element (35a) is held in the separating wall (21) and is movably guided in the separating wall (21) in the axial direction of the linear valve element.

Description

technical field [0001] The invention relates to a turbine for an exhaust gas turbocharger with a double volute turbine housing and with a linear valve for volute connection and wastegate control. Background technique [0002] The internal combustion engine 1 supercharged by the exhaust gas turbocharger 2 is characterized in that figure 1 Guiding device for fresh air and exhaust air shown. During supercharged operation, exhaust gases flow from the internal combustion engine 1 via a turbine 3 , which drives a compressor 4 via a common shaft 5 in the intake tract upstream of the inlet of the engine 1 . Due to the compression of the intake air, more fuel can be mixed per cylinder stroke and the torque of the engine 1 increases. [0003] For clarity, some elements of the air guide are in figure 1 not shown in These elements are, for example, an air filter arranged upstream of the compressor, an air flow sensor arranged upstream of the compressor, a charge air cooler arranged ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/02F02B37/18F16K1/20F01D17/10F02B37/22
CPCF01D17/105F02B37/025F02B37/183F02B37/186F02B37/225F05D2220/40Y02T10/12
Inventor C.施帕雷尔
Owner VTESCO TECH GMBH
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