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Turbo charging system with exhaust manifold having variable necking rate

The technology of a turbocharging system and an exhaust manifold is applied in the field of the turbocharging system of an internal combustion engine and the turbocharging system, and can solve the problems of large exhaust collision loss, inability to adjust the volume of the exhaust manifold, and small volume of the exhaust manifold, etc. achieve optimal performance

Inactive Publication Date: 2012-07-04
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that if an engine is equipped with constant pressure supercharging method and pulse supercharging method at the same time, the constant pressure supercharging system is used for high-speed working conditions, and the pulse supercharging system is used for low-speed and transient working conditions, which is more ideal. Yes, but the volume of the exhaust manifold of the existing engine supercharging system is basically not adjustable
In the existing technology, the patent number is ZL200410050996.3, which is an invention patent of a variable modular pulse conversion supercharging device for a turbocharged diesel engine. It provides a device with a continuously variable volume of the exhaust manifold, which is The closest existing technology to the present invention, it achieves both high and low speed conditions by changing the volume of the exhaust manifold, but in low operating conditions, the volume of the exhaust manifold is small, and the impact loss of the exhaust from the exhaust branch pipe bigger

Method used

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  • Turbo charging system with exhaust manifold having variable necking rate
  • Turbo charging system with exhaust manifold having variable necking rate
  • Turbo charging system with exhaust manifold having variable necking rate

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Embodiment Construction

[0011] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 Shown, the present invention comprises exhaust branch pipe 2, exhaust manifold 5, turbine 1, dividing plate 3, dividing plate shaft 4, dividing plate rotating handle 7, exhaust branch pipe deflector 6, the inlet of exhaust branch pipe 2 and cylinder The head and exhaust passages are connected, the outlet of the exhaust branch pipe 2 is connected with the exhaust manifold 5, the turbine 1 is a single-inlet turbine, the outlet of the exhaust manifold 5 is connected with the inlet of the turbine 1, and the pipe wall of the exhaust manifold 5 is formed by It is composed of two flat plates on the side and two arc plates on the upper and lower sides. One end of the partition shaft 4 is integrated with the partition rotating handle 7. The other end of the partition sha...

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Abstract

The invention relates to a turbo charging system with an exhaust manifold having a variable necking rate, which belongs to the technical field of internal combustion engines. The system comprises an exhaust branch pipe, an exhaust pipe, a turbine, a clapboard, an exhaust branch pipe guide plate and a clapboard shaft, wherein one end of the clapboard shaft is fixedly connected with a clapboard rotating handle while the other end vertically passes through the side wall of the exhaust pipe and is in smooth and firm contact with the inner wall of the exhaust pipe; one end of the exhaust branch pipe guide plate is fixedly connected with the upper wall face of the exhaust pipe and tangent to the exhaust branch pipe while the other end is in smooth and firm contact with the clapboard shaft; and one end of the clapboard is a free end, the other end is integrally fixed with the clapboard shaft and two lateral ends are in smooth and hermetic contact with the inner side wall of the exhaust pipe.The necking rate of the exhaust manifold is adjusted by rotating the clapboard. When an engine runs under a low-speed working condition, the necking rate of the exhaust manifold is decreased by rotating the clapboard; and when the engine runs under a high-speed working condition, the necking rate of the exhaust manifold is increased. The system has the advantages of reasonable design, capability of meeting the requirement of variable-working condition running of the engine, no limit of cylinder number and suitability for the turbo charging system with a laterally-arranged single-inlet turbine.

Description

technical field [0001] The invention relates to a turbocharging system of an internal combustion engine, in particular to a turbocharging system with a single inlet of a turbine and a side-mounted exhaust manifold with a variable necking ratio, which belongs to the technical field of internal combustion engines. Background technique [0002] With the development of society and the improvement of environmental protection requirements, engine boosting technology is now more and more widely used. Most of the engines with medium and high power adopt turbocharging technology to improve power and reduce fuel consumption. The two basic supercharging systems for turbocharged engines are constant pressure supercharging system and pulse supercharging system. Constant pressure supercharging system, the volume of the exhaust manifold is large, the pressure in the pipe is basically kept constant, the scavenging interference is small, the pumping loss is small, and the performance is good...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/22
CPCY02T10/144Y02T10/12
Inventor 石磊邓康耀李胜达刘秋颖王绍明
Owner SHANGHAI JIAOTONG UNIV
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