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Auxiliary pressurization system adopting waste gas bypass

A technology of supercharging system and exhaust gas, applied in charging system, fuel air inlet, combustion air/combustion-air treatment, etc., can solve the problem of consuming engine energy, reduce energy waste, increase air intake, Improve the effect of low speed

Pending Publication Date: 2019-02-22
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wastegate auxiliary supercharging system for the problems of the existing engine auxiliary supercharging system, such as extra consumption of engine energy.

Method used

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  • Auxiliary pressurization system adopting waste gas bypass

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] see figure 1 , a wastegate auxiliary supercharging system, which is a wastegate auxiliary supercharging system that recycles and utilizes supercharged excess energy to realize engine auxiliary supercharging intake and improve energy utilization; it includes an air filter 1, Supercharger 2 , intercooler 4 , engine intake connection pipe 5 , engine intake pipe 6 , engine body 7 , engine exhaust manifold 8 , engine ECU 13 and pressure accumulator 12 .

[0015] see figure 1 , the compressor inlet of the supercharger 2 is connected to the air filter 1 through the intake pipeline, and the compressor outlet of the supercharger 2 is connected to the inlet of the intercooler 4 through the intercooler inlet pipe 3 , the outlet of the intercooler 4 is connected to the engine intake pipe 6 through the engine intake connection pipe 5 . T...

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Abstract

The invention discloses an auxiliary pressurization system adopting waste gas bypass. An intake port of a pressure accumulator (12) is connected with an intercooler intake pipe through a pressure accumulation pipeline (9); an exhaust port of the pressure accumulator (12) is connected with an engine intake connection pipe (5) through an auxiliary pressurization intake pipeline (14); a pressure accumulation bypass valve (10) and a check valve I (11) are arranged on the pressure accumulation pipeline (9); a pressurization bypass valve (15) and a check valve II (16) are arranged on the auxiliary pressurization intake pipeline (14); an intake pressure sensor (17) is arranged on an engine intake pipe (6); and the pressure accumulation bypass valve (10), the pressurization bypass valve (15) and the intake pressure sensor (17) are electrically connected with an engine ECU (13) separately. The excessive compressed air is collected through the pressure accumulator (12), so that the energy wasteis reduced, and the energy utilization rate is effectively increased.

Description

technical field [0001] The invention relates to a supercharging system, more specifically to a waste gas bypass auxiliary supercharging system, and belongs to the technical field of automobile auxiliary supercharging technology. Background technique [0002] In the prior art, the exhaust gas turbocharging technology is commonly used in the engine, and the turbocharger is driven by the exhaust gas energy of the engine, and the compressed air is fed into the cylinder by the turbocharger, so as to increase the charge density, increase the intake air volume, increase the power, and improve the fuel consumption. Economy, emission characteristics. However, due to the influence of the exhaust gas turbocharger's own working characteristics, there are the following turbo hysteresis problems: 1. At low speed, due to the low exhaust energy of the engine, the turbocharger rotates at a low speed, the degree of supercharging is low, and the exhaust energy changes It takes a certain amoun...

Claims

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Application Information

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IPC IPC(8): F02M35/10
CPCF02M35/10052F02M35/10157F02M35/10255
Inventor 李平
Owner DONGFENG COMML VEHICLE CO LTD
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