Advanced recovery and exhaustion system for reusable diesel exhaust gas

An exhaust system and diesel engine technology, applied in exhaust devices, mechanical equipment, engine components, etc., can solve the problems of large pressure fluctuation, low pulse energy utilization rate, complex exhaust pipe structure, etc. Competitive advantage, effect of simple structure

Inactive Publication Date: 2008-09-24
HENAN DIESEL ENGINE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of low pulse energy utilization rate in constant pressure turbocharging system, large pressure fluctuation and complex exhaust pipe structure in pulse supercharging system

Method used

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  • Advanced recovery and exhaustion system for reusable diesel exhaust gas
  • Advanced recovery and exhaustion system for reusable diesel exhaust gas

Examples

Experimental program
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Embodiment Construction

[0009] In conjunction with accompanying drawing, provide embodiment of the present invention as follows:

[0010] Such as figure 1 Shown: this embodiment is made of a plurality of exhaust pipe units and expansion joints, and each cylinder is connected with an exhaust pipe unit at its outlet. Each exhaust pipe unit includes a pipe body 1 and an exhaust branch pipe 3 (such as figure 2 As shown), the pipe body 1 is in the shape of a cylinder, and its two ends are provided with connecting flanges 2 for connecting the expansion joint 5; the exhaust branch pipe 3 is directly connected to the corresponding cylinder exhaust port through the flange 7. The pipe diameter of the exhaust branch pipe is tapered, like a shrinking nozzle, one end intersects the pipe body 1 at an angle, and the other end is connected to the cylinder exhaust port; the exhaust pipe unit of each adjacent cylinder is formed by an expansion joint 5 After being connected in series, the pipe body parts form the ex...

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PUM

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Abstract

The invention discloses an advanced exhaust recovery system of available energy of diesel waste gas, consisting of a plurality of exhaust pipe units and expansion joints. Each exhaust pipe unit comprises a pipe body (1) and an exhaust branch (3). The pipe diameter of the exhaust branch (3) is tapered. One end of the exhaust branch intersects with the pipe body (1) at a right angle and the other end of the exhaust branch is connected with the vent of an air cylinder. After a plurality of exhaust pipe units are connected, the pipe body (1) of the connected exhaust pipe units constitutes an exhaust collector. One end of the exhaust collector is sealed up and the other end of the exhaust collector is connected with a turbine inlet. The advanced exhaust recovery system has rational structure and simple structure. As the exhaust pipes are connected in series and the vent of each air cylinder is connected with the exhaust pipe unit, exhaust pulse energy can be effectively used. A pulse system can respond quickly, so the diesel has good acceleration performance. When the diesel runs at low speed, as the energy damper loss of waste gas is relatively less, pulse energy can be better used and the diesel ahs better low-speed torque performance.

Description

technical field [0001] The invention belongs to the technical field of exhaust devices for diesel engines, and mainly relates to an exhaust system for recovering exhaust gas from diesel engines in advance. Background technique [0002] Known high-speed diesel engine exhaust systems include constant pressure turbocharging systems and pulse supercharging systems. The characteristic of the constant pressure turbocharging system is that the gas pressure in front of the turbine is basically kept constant. The exhaust of each cylinder of the diesel engine is connected to an exhaust manifold, and the volume of the exhaust manifold must be large enough to stabilize the pressure. The turbine has a single air intake. It has the advantages of high efficiency and simple structure of the exhaust pipe system, but has the disadvantages of large cross-sectional area of ​​the exhaust manifold and low utilization rate of pulse energy; the characteristic of the pulse turbocharging system is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N7/08F02B37/00F01N13/08
CPCY02T10/144Y02T10/12
Inventor 刘藏会张德林聂志斌张华伟刘丕人孙勇丛军成立新
Owner HENAN DIESEL ENGINE IND
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