Multi-pulse conversion exhausting device of 8-cylinder straight-row diesel engine

A technology of exhaust device and pulse converter, applied in exhaust device, muffler device, mechanical equipment, etc., can solve problems such as mutual interference between exhaust gas

Inactive Publication Date: 2007-11-14
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a multi-pulse conversion exhaust device for the existing diesel engine exhaust pipe device to provide a multi-pulse conversion exhaust device, so that the 8-cylinder in-line exhaust gas turbocharged diesel engine can be fully utilized When the pulse energy is used, it can well avoid the exhaust interference of each cylinder

Method used

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  • Multi-pulse conversion exhausting device of 8-cylinder straight-row diesel engine
  • Multi-pulse conversion exhausting device of 8-cylinder straight-row diesel engine
  • Multi-pulse conversion exhausting device of 8-cylinder straight-row diesel engine

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Embodiment Construction

[0023] With reference to the accompanying drawings, the multi-pulse conversion exhaust device for an 8-cylinder in-line diesel engine includes an exhaust pipe 1 connected to the cylinders of the in-line diesel engine. The pipe 1 is divided into two sections with the same structure, the 1-2-3-4 cylinders of the in-line diesel engine share a section of exhaust pipe, and the 5-6-7-8 cylinders share a section of exhaust pipe. Each section of exhaust pipe 1 has four air inlets 3 and two air outlets 5, and each section of exhaust pipe 1 is provided with two flow channels 4 in parallel, wherein two adjacent air inlets 3 share one flow channel 4 and an air outlet 5, the two air inlets 3 on opposite sides share a flow channel 4 and an air outlet 5, that is, the four cylinders 1, 2, 3, and 4 share an exhaust pipe, 5, 6 , 7, 8 these four cylinders share an exhaust pipe. Cylinders 1-4, 2-3 each share a flow passage, and they are introduced into one of the air inlets of the pulse converte...

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Abstract

The invention discloses a multi-pulse converter exhauster in 8-cylinder in-line diesel engine , including an exhaust pipe connected with the cylinder in-line diesel engine . The exhaust pipe of a diesel engine were connected to the cylinder inline on the inlet, So-call exhaust pipe is divided into two same structure, each exhaust pipe has four inlet and two outlet, within each exhaust pipe has two parallel flow, which of the two adjacent inlet share a outlet and flow channel A relative of the two sides a common inlet flow channel and a Outgassing mouth, the two Outgassing are set side-by-side in each exhaust pipe inlet side and the adjacent side of the centra. The inlet in two sections of the exhaust pipe installs an exhaust pipe of pulse converter connected a turbocharger in diesel engine. The exhauster that manufacturing and assembing process is simple, is small size, low cost, solved the cylinder exhaust mutual interference problems, so that the engine exhaust flow and have a good engine performance.

Description

technical field [0001] The invention relates to an exhaust device on an exhaust gas turbocharged diesel engine, in particular to an in-line exhaust gas turbocharger with 8 cylinders and a firing order of 1-6-2-4-8-3-7-5. The multi-pulse conversion exhaust device on the diesel engine is used to solve the problem of mutual interference between the exhaust gases of each cylinder. Background technique [0002] The firing interval angle of the 8-cylinder in-line diesel engine is: 720° / 8=90°, and the firing sequence is 1-6-2-4-8-3-7-5. Since the situation of the 1-2-3-4 cylinder is the same as that of the 5-6-7-8 cylinder, only the situation of the 1-2-3-4 cylinder can be analyzed. According to the exhaust phase diagram of cylinders 1-4 shown in Figure 9, the exhaust interference of each cylinder was analyzed, and the following conclusions were drawn: [0003] 1) After the first cylinder fires, the second cylinder starts to fire at 180°C. Since the second cylinder fires behind ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N7/10F01N13/10
Inventor 吴春华张德连唐金池高焱
Owner WEICHAI POWER CO LTD
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