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Supercharged internal combustion engine with exhaust-gas turbochargers arranged in series and method for operating an internal combustion engine of said type

An internal combustion engine, supercharged technology, applied in the direction of internal combustion piston engine, combustion engine, machine/engine, etc., can solve the problems of high construction cost, inertial behavior, etc.

Active Publication Date: 2015-03-25
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the first method, the use of exhaust blowing will lead to disadvantages at high engine speeds, and the compressor provided may reach the threshold of its displacement and thus may no longer be able to provide the required power
Disadvantages of the second method may be high construction costs and inertial behavior during engine speed changes

Method used

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  • Supercharged internal combustion engine with exhaust-gas turbochargers arranged in series and method for operating an internal combustion engine of said type
  • Supercharged internal combustion engine with exhaust-gas turbochargers arranged in series and method for operating an internal combustion engine of said type
  • Supercharged internal combustion engine with exhaust-gas turbochargers arranged in series and method for operating an internal combustion engine of said type

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Embodiment Construction

[0016] The present application relates to a supercharged / supercharged internal combustion engine. The supercharged internal combustion engine includes an intake system for supplying supercharged air and an exhaust emission system for discharging exhaust gas, and has at least two Two exhaust gas turbochargers in series, each of the exhaust gas turbochargers includes a turbine arranged in the exhaust gas discharge system and a compressor arranged in the intake system, and wherein the first exhaust gas turbocharger serves as The low-pressure stage and the second exhaust turbocharger serve as the high-pressure stage, the second turbine of the second exhaust turbocharger is arranged upstream of the first turbine of the first exhaust turbocharger, and the second exhaust turbine The second compressor of the supercharger is arranged downstream of the first compressor of the first exhaust turbocharger, and a first bypass line is provided, which branches from the exhaust discharge system ...

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Abstract

Provided is a supercharged internal combustion engine comprising a high-pressure turbine connected to a channel of a low-pressure turbine and a bypass line, branching from upstream the high-pressure turbine, connectable to the channels of the low-pressure turbine via a control element positioned within the bypass line, is provided. Adjusting the control element fluidly connects each of the channels of the low-pressure turbine to the bypass line responsive to the exhaust-gas flow rate to optimize the performance of the engine.

Description

[0001] Cross references to related applications [0002] This application claims the priority of German Patent Application No. 102013218815.3 filed on September 19, 2013, the entire content of which is incorporated herein by reference for all purposes. Technical field [0003] The invention relates to a method and system for operating a series sequential supercharging system with a high-pressure turbine and a double-scroll tube low-pressure turbine. Background technique [0004] The supercharging of the internal combustion engine increases power by supplying compressed air for the combustion process. The exhaust gas turbocharger in which the compressor and the turbine are arranged on the same shaft uses energy supplied to the turbine by the exhaust gas flow to drive the compressor via the shaft. Due to changes in engine speed, the turbocharger may cause an undesirable torque drop, which affects the exhaust gas flow and therefore the turbine pressure ratio. [0005] In one method, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/18F02B37/007F02C6/12
CPCF02B37/002F02B37/004F02B37/013F02B37/025F02B37/18F02B37/183F02M26/08F02M26/09Y02T10/12F01D17/08F01D17/105F02D23/00
Inventor J·克默林F·A·萨默候夫V·斯米利亚诺夫斯基H·M·金德尔A·库斯克
Owner FORD GLOBAL TECH LLC
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