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Engine system and vehicle

An engine system and engine technology, applied in the direction of engine components, combustion engines, machines/engines, etc., to achieve the effect of reducing fugitive emissions

Inactive Publication Date: 2020-05-19
SAIC GENERAL MOTORS +1
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  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art

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  • Engine system and vehicle
  • Engine system and vehicle

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Embodiment Construction

[0028] It is easy to understand that, according to the technical solution of the present invention, those skilled in the art can propose multiple structural modes and implementation modes that can be replaced without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0029] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings, and they are It is a relative concept, so it may change accordingly according to its different positions and different usage states. Accordingly, these or other directional terms should not be...

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Abstract

The invention provides an engine system and a vehicle. The engine system comprises a fuel tank, an engine, an exhaust pipe and a hydrocarbon adsorber, wherein the fuel tank is provided with a fuel inlet and an oil gas steam outlet communicating to an oil filler pipe; the oil gas steam outlet of the fuel tank communicates to an inlet of the engine through a carbon tank; the exhaust pipe communicates to an outlet of the engine and comprises an exhaust main pipe and a by-pass pipe, and an exhaust valve is arranged in the exhaust main pipe; and the hydrocarbon adsorber communicates to an escape orifice of the carbon tank, and the hydrocarbon adsorber is close to the by-pass pipe to receive heat from the by-pass pipe. According to the engine system according to the embodiment of the invention,the hydrocarbon adsorber can be desorbed thoroughly, so that escape emission of the engine is reduced, and a higher emission regulation requirement is met.

Description

technical field [0001] The present invention relates to the field of automotive engines and, more particularly, the present invention relates to engine methods, especially in the field of fugitive emission control. Background technique [0002] As the evaporative emission regulations become more and more stringent, the evaporative emission limit of vehicle fuel is also gradually reduced. For example, the evaporative emission requirement of the National V vehicle is 2 g / day, and the National VI vehicle evaporative emission requirement is 0.7 g / day, while the PZEV and LEV3 regulations in North America require 0.3 g / day for vehicle evaporative emissions, and also require a fuel system fugitive emission limit of 20mg / day. It's a big challenge. [0003] In existing vehicles, carbon canisters are mainly used to control fugitive emissions. However, the fugitive emission design of ordinary carbon canisters is difficult to meet the requirements. The main characteristic of the carb...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/08F01N5/02
CPCF01N5/02F02M25/08F02M2025/0881Y02T10/12
Inventor 胡结兵李博马智勇
Owner SAIC GENERAL MOTORS
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