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Exhaust gas purification device and exhaust gas purification method

An exhaust purification device and technology for exhaust purification, which are applied in exhaust devices, pneumatic power devices, power devices, etc.

Inactive Publication Date: 2010-10-27
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in JP-A-6-93840, it is necessary to provide an auxiliary air supply device that is an additional device

Method used

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  • Exhaust gas purification device and exhaust gas purification method
  • Exhaust gas purification device and exhaust gas purification method
  • Exhaust gas purification device and exhaust gas purification method

Examples

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Embodiment Construction

[0038] Refer below Figures 1 to 8 Example embodiments of the present invention are described. The vehicle 1 according to the present embodiment is a hybrid vehicle capable of being driven by the internal combustion engine 10 and the electric motor 35 . In other words, this vehicle 1 has a control unit 5 such as an engine control unit (ECU), an internal combustion engine 10 , a generator 31 for generating electric power based on the rotational force of the internal combustion engine 10 , a generator for storing the electric power generated by the generator 31 the battery 33, the electric motor 35 for driving using the electric power of the generator 31 or the battery 33, selectively applying the electric power generated by the electric generator 31 to the electric motor 35 and the battery 33 or applying the electric power stored in the battery 33 to the electric motor The inverter 37 of 35, the power distribution mechanism 39 for distributing the rotational force of the inter...

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Abstract

An exhaust gas purification device has: a bypass passage (20) disposed in an exhaust passage (15) of an internal combustion engine (10); an adsorbent (21) which is disposed in the bypass passage (20), and adsorbs unburned components in exhaust gas at a low temperature and desorbs the adsorbed unburned components at a high temperature; and an exhaust gas purification catalyst (22) which is disposed in the exhaust passage (15) at a downstream side of a portion where the bypass passage (20) merges, and purifies unburned components in exhaust gas; and a desorption amount adjustment (19) unit that adjusts the desorption amount of unburned components adsorbed by the adsorbent (21) based on an integrated fuel cut air amount (fgs), which is an integrated value of air amount taken into a combustion chamber of the internal combustion engine (10) during execution of fuel cut.

Description

technical field [0001] The present invention relates to an exhaust purification device in an internal combustion engine, and more particularly to an exhaust purification device and method for purifying unburned components adsorbed by an adsorbent. Background technique [0002] There has been proposed an exhaust purification device that adsorbs unburned components such as hydrocarbons (HC) in exhaust gas by an adsorbent installed in a bypass passage until the exhaust gas is activated, for example, after a cold start of an internal combustion engine. A gas purification catalyst is used, and unburned components are desorbed after the warm-up is completed, and the desorbed components are purified using an exhaust gas purification catalyst (three-way catalyst) disposed downstream of the adsorbent. The exhaust purification catalyst has an oxygen storage function for storing oxygen. In the exhaust purification device, an amount of oxygen required for purification of desorbed unbur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/08F02D41/12B60K6/445B60L50/16F01N13/08
CPCY02T10/6239Y02T10/54Y02T10/6286B60W2510/0628B60W2520/10F01N3/0814B60W10/06B60K6/365F01N3/0878B60K6/445B60W20/00B60W2510/0676B60K1/02B60W2510/0638B60L2240/445B60W10/08F02D41/123B60L2240/441Y02T10/40Y02T10/62B60W20/15
Inventor 佐野启介伊藤隆晟依田公一若尾和弘
Owner TOYOTA JIDOSHA KK
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