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Gas flow guiding composite pulse conversion turbo supercharging system

A turbocharging system and composite pulse technology, applied in the direction of exhaust devices, mufflers, internal combustion piston engines, etc., can solve problems such as throttling loss, achieve small pump air loss, good transient and acceleration performance, and avoid sweeping The effect of air disturbance

Inactive Publication Date: 2008-03-26
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This system can make full use of the exhaust pulse energy, reduce pump air work loss, improve turbine efficiency, and uniform exhaust temperature. However, because the pulse converter is connected to the MPC system, the constriction of the pulse converter also causes a certain throttling loss.

Method used

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  • Gas flow guiding composite pulse conversion turbo supercharging system

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Embodiment Construction

[0011] The specific implementation of the present invention for 8-cylinder diesel engine will be further described below in conjunction with the accompanying drawings.

[0012] As shown in Figure 1, the present invention includes A cylinder 1, B cylinder 2, C cylinder 3, D cylinder 4, E cylinder 5, F cylinder 6, G cylinder 7, H cylinder 8, exhaust branch pipe 9, A pulse exhaust Pipe 10, B pulse exhaust pipe 11, Y-joint 12, modular pulse conversion exhaust pipe 13, turbocharger 14, deflector 15. According to the ignition sequence of the internal combustion engine, A cylinder 1 and B cylinder 2, which are far away from the turbocharger section and have scavenging interference, are connected to the two input ends of the Y-shaped joint 12 through the A pulse exhaust pipe 10 and the B pulse exhaust pipe 11 respectively. , the output end of the Y-shaped joint 12 is connected to the input end of the modular pulse conversion exhaust pipe 13, the output end of the modular pulse convers...

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PUM

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Abstract

The present invention belongs to the field of internal combustion engine technology, and is especially one kind of gas guiding composite pulse converting turbocharging system comprising cylinders, exhaust branch pipes, two pulse exhaust pipes, one Y-shaped joint, one modular pulse conversion exhaust pipe, one turbocharger and guide plates. The cylinder far from the turbocharger with scavenging interference is connected to the inlet of the turbocharger through two pulse exhaust pipes, one Y-shaped joint and one modular pulse conversion exhaust pipe, while the other cylinders are connected through separate exhaust branch pipes to the modular pulse conversion exhaust pipe. Guide plates are set in the joints between the exhaust branch pipes and the modular pulse conversion exhaust pipe to control the ejection to the gas flows and the emission of the pressure wave. The present invention is suitable for internal combustion engine of different cylinder numbers.

Description

technical field [0001] The invention relates to a turbocharging system of an internal combustion engine, in particular to a gas diversion compound pulse conversion turbocharging system for utilization of exhaust energy of a multi-cylinder internal combustion engine and anti-scavenging interference, and belongs to the technical field of internal combustion engines. Background technique [0002] Existing turbocharging systems for internal combustion engines include constant pressure, pulse, pulse conversion, and modular pulse conversion. The size of the exhaust pipe of the constant-pressure turbocharging system is relatively large so that the exhaust pressure is basically unchanged, avoiding the scavenging interference caused by multi-cylinder exhaust, the intake air flow of the turbine is stable, and the turbine efficiency is high, but the exhaust energy loss is large and the work efficiency is low. and poor dynamic performance. The pulse turbocharging system is not as effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/00F01N7/10F01N13/10
CPCY02T10/144Y02T10/12
Inventor 顾宏中邓康耀崔毅郭中朝邬静川
Owner SHANGHAI JIAO TONG UNIV
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