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Exhaust gas flow divider for turbocharger turbine housing

A turbocharger shell, turbine shell technology, applied in the direction of machines/engines, thin material processing, combustion engines, etc., can solve the problems of expensive development and manufacturing

Inactive Publication Date: 2015-04-29
INT ENGINE INTPROP CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fully split turbochargers are also more expensive to develop and manufacture than vented turbochargers

Method used

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  • Exhaust gas flow divider for turbocharger turbine housing
  • Exhaust gas flow divider for turbocharger turbine housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] refer to Figure 1-2 , a turbocharger turbine housing is generally indicated at 10 and includes a throat 12 extending upstream from a main turbine housing portion 14 . The main turbine housing portion 14 is generally cylindrical and is configured to house a turbine wheel that receives the flow of exhaust gas EG expelled from the throat 12 . The main turbine casing portion 14 may have a generally cylindrical inner surface 16 . Throat 12 may be a generally curved or helical inlet tube, although other shapes are possible.

[0012] The inlet surface 18 of the throat 12 is configured for attachment to an engine (not shown). Throat 12 may be generally cylindrical or circular in cross-section and extends from inlet surface 18 to main turbine casing portion 14 . Throat 12 defines an exhaust passage 20 for flow of exhaust from the engine through the throat to turbine housing portion 14 . Exhaust passage 20 is in fluid communication with inner surface 16 of main turbine housi...

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PUM

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Abstract

An exhaust gas turbocharger housing (10) for an engine includes a main turbine housing portion (14) and a throat portion (12) defining an exhaust gas passageway (20) that is in upstream fluid communication with the main turbine housing. The exhaust passageway (20) communicates exhaust gases (EG) to the main turbine housing portion (14). A flow divider (22) generally bisects the exhaust gas passageway (20) forming a first inlet passageway (24A) and a second inlet passageway (24B). A flow hole (26) is disposed through the flow divider (22) for permitting the fluid communication of exhaust gas (EG) from the first inlet passageway (24A) to the second inlet passageway (24B).

Description

Background technique [0001] Embodiments described herein relate to an exhaust gas splitter of a turbocharger turbine housing. [0002] The back pressure created by the exhaust gases can be used to create a decelerating force on the engine known as engine braking. Exhaust backpressure can be generated by a turbocharger located downstream of the engine. [0003] In an inline-six engine with a front exhaust manifold separate from the rear exhaust manifold, the exhaust from the front three cylinders is isolated from the rear three cylinders. Exhaust gases are discharged from the front and rear exhaust manifolds into the turbocharger turbine inlet. The turbocharger turbine inlet may be a single open passage that allows communication of exhaust gases from the front and rear exhaust manifolds. This exhaust communication, known as a "short circuit", reduces exhaust pulse energy and reduces exhaust back pressure, reducing engine braking dynamics. [0004] EGR systems also use exhau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/00
CPCF01D9/026F01D17/105F02B37/18F05D2240/12F05D2220/40Y10T137/0536F02B27/04F02B37/183
Inventor L·C·卡塔尼J·扎戈内P·戈特穆勒J·P·伯克M·D·巴特科维奇
Owner INT ENGINE INTPROP CO LLC