CN201236756Y

CN201236756Y - Oxygen-enriched combustion emission-reduction apparatus for petrol engine at cool start stage

Info

Publication number: CN201236756Y
Application number: CNU200820090298XU
Authority: CN
Inventors: 关强; 李胜琴; 崔淑华; 张文会
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-24
Filing date: 2008-06-24
Publication date: 2009-05-13
Anticipated expiration: 2018-06-24

Abstract

The utility model relates to an oxygen-enriched combustion emission reduction device in the cold start phase of a petrol engine, which comprises an engine, wherein, an inlet manifold which is communicated with a pressure stabilizing chamber is arranged on a sending machine; and the pressure stabilizing chamber is connected with an oxygen flask through an auxiliary air inlet. The emission reduction device has the advantages of simple structure, reasonable design, easy assembly and low cost. The device can change the density of the oxygen in the air entering the air cylinder of the engine, thereby realizing the oxygen-enriched combustion of the engine to improve the emission performance during the cold start phase, therefore, the normal working performance of the engine can not be affected after heating.

Description

Petrol engine cold start-up stage oxygen-enriched combusting emission reduction device

Technical field

The utility model belongs to internal-combustion engine, especially relates to a kind of petrol engine cold start-up stage oxygen-enriched combusting emission reduction device.

Background technique

At present, internal-combustion engine technology and application are ripe, on engine performance, also begin from power character and Economy develop into the pursuit environmental-protecting performance emphatically, the noxious emission of automobile is one of important source of pollution of atmosphere, increase along with vehicle guaranteeding organic quantity, atmospheric pollution is more and more serious, and the Abgasgesetz that formulate countries in the world is also strict more, and these rules have proposed new challenge to emission control technique.Along with the release of Europe III, Europe IV standard, exhaust index requires harshness more on the one hand, and variation has also taken place method of measurement on the other hand.The method of measurement of Europe II emission standard is that transmitter is measured through behind the warming-up, do not require the discharging of cold start-up and cold idling operation, and EUROIII Emission Standard is to start the back to measure at once, promptly measure the cold start-up operating mode and also measure discharging under the cold idling operation, the petrol engine of being furnished with triple-effect catalytic unit, 80% HC and CO discharging produce in cold start-up process first few minutes, because in the cold start-up stage, organism temperature and fuel oil temperature are all very low, in order to remedy the deficiency of fuel evaporation, guarantee the stable of burning, need to supply with denseer mixed gas, and catalyst converter needs the regular hour just can reach initiation temperature, before catalyst converter works, the HC and the CO overwhelming majority that petrol engine is discharged will directly enter atmosphere, therefore to reduce HC and CO discharge amount in the cold start-up process, need to promote fuel oil perfect combustion on the one hand, reduce the discharge amount of HC of petrol engine own and CO, need to shorten catalyst converter on the other hand and reach the initiation temperature needed time, almost can't solve by traditional method.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that exists in the above-mentioned technology, provides a kind of simple in structure, reasonable in design, easily installs, controls the stage oxygen-enriched combusting of petrol engine cold start-up easily emission reduction device.

In order to achieve the above object, the technical solution adopted in the utility model is: comprise motor, have the intake manifold to be connected with plenum on the transmitter, plenum connects the oxygen bottle by additional suction tude.

The utility model has the advantages that:

1, simple in structure, reasonable in design, easily installation, with low cost;

2, the utility model can enter in the cylinder concentration of oxygen in the air at the cold start-up phasic change, realizes the oxygen-enriched combusting of motor, improves row side's performance in cold start-up stage, do not influence engine warm and after normal working performance.

Description of drawings

Fig. 1 is the utility model structural representation;

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

As shown in Figure 1, the utility model comprises motor, has intake manifold 2 to be connected with plenum 3 on the transmitter 1, and plenum 3 connects oxygen bottle 5 by additional suction tude 4.

Difference installation and control valve 6, flowmeter 7, reduction valve 8 on the pipeline of described additional suction tude 4.

The utility model prolongs plenum to the intake manifold of motor, be connected with additional suction tude on it, additional suction tude connects oxygen cylinder, control valve, flowmeter, reduction valve, oxygen gauge, on this section intake manifold between additional suction tude tie point and the motor, plenum is installed, made by additional suction tude oxygen that flows into and the air that enters by main suction tude before entering cylinder.Carry out abundant mixed stable voltage, and then the burning that enters each firing chamber participation fuel oil of motor, the engine cold-start stage, open the control valve of additional suction tude and the control valve of oxygen cylinder, make oxygen enter engine air inlet tube, change concentration of oxygen in the air that enters cylinder, realize the intake oxygen enrichment of motor, and the touch opportunity of fuel molecule and oxygen molecule increases, and can promote the perfect combustion of fuel oil, reduces the discharging of carbon monoxide and silicon oxide compound.

Claims

1. a petrol engine cold start-up stage oxygen-enriched combusting emission reduction device comprises motor, it is characterized in that: have intake manifold (2) to be connected with plenum (3) on the transmitter (1), plenum (3) connects oxygen bottle (5) by additional suction tude (4).

2. petrol engine cold start-up stage oxygen-enriched combusting emission reduction device according to claim 1 is characterized in that: difference installation and control valve (6), flowmeter (7), reduction valve (8) on the pipeline of described additional suction tude (4).