System and method for variable tongue pitch of a multi-channel turbine for a supercharged internal combustion engine

An internal combustion engine, multi-channel technology, used in internal combustion piston engines, combustion engines, engine components, etc.

Active Publication Date: 2019-02-01
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The inventors noted that one potential problem with the above solution is that providing wall elements with fixed positions only enables optimization of the engine under certain operating conditions

Method used

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  • System and method for variable tongue pitch of a multi-channel turbine for a supercharged internal combustion engine
  • System and method for variable tongue pitch of a multi-channel turbine for a supercharged internal combustion engine
  • System and method for variable tongue pitch of a multi-channel turbine for a supercharged internal combustion engine

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Embodiment Construction

[0019] The present application relates to a supercharged internal combustion engine comprising at least one cylinder head with at least two cylinders and at least one exhaust-gas turbocharger with at least one turbine, wherein each cylinder has a At least one exhaust port of the cylinder, each exhaust port is connected by an exhaust pipe. The at least two cylinders are configured such that at least two cylinder groups are formed, each cylinder group having at least one cylinder. The exhaust ducts of the cylinders of each cylinder group merge to form a respective overall exhaust duct, thereby forming an exhaust manifold having at least two overall exhaust ducts connected to the multi-channel segmented turbine. The turbine comprises at least one rotor mounted on a rotatable shaft within the turbine housing and at least two passages of the turbine which, viewed in a section perpendicular to the axis of the rotor, follow at least one arc The sections are arranged one channel abov...

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Abstract

The present application discloses an internal combustion engine with a twin-flow turbocharger comprising a circular bracket having at least one tongue-like end, wherein the circular bracket is adjustable in translation along the turbine rotational axis. Moving this circular bracket affects the extent to which the separation behavior of the turbine channel is changed by changing the tongue spacing to the rotor.

Description

[0001] Cross reference to related applications [0002] This application claims priority from German Patent Application No. 102013213450.9 filed on July 9, 2013, the entire content of which is hereby incorporated by reference for all purposes. Background technique [0003] Turbocharged engines with multi-channel turbines contain walls that separate the channels up to the extent of the rotor in order to vary the interaction between the two channels. The twin-channel turbo is able to split the two airflows of the two cylinder exhaust banks, which helps boost low-end torque. The efficiency and separation characteristics of a twin-flow turbine are affected by the spacing between the tongues of the turbine housing wall and the turbine wheel. The engine can take into account the different spacing characteristics of the turbine under different operating conditions to increase efficiency. [0004] One solution is to provide a wall that separates the channels from each other up to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/22
CPCF01D9/026F02B37/025F02B37/22F02B37/24F05D2220/40Y02T10/12
Inventor H·M·金德尔N·A·斯科恩V·斯米利亚诺夫斯基F·A·萨默候夫A·库斯克J·克默林
Owner FORD GLOBAL TECH LLC
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