A multifunctional hc capture device and its fuel evaporation control system

A multi-functional, mounting bracket technology, applied in charging systems, power units, fuel injection devices, etc., can solve the problems of rising design costs, manufacturing costs, and vehicle costs, and achieve improved service life, simple and compact structure, Simple and convenient maintenance

Active Publication Date: 2022-06-24
DONGFENG FUJI THOMSON THERMOSTAT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current technical solutions include: (1) Design different types of carbon canisters for different regulations, that is, design carbon canisters that only contain carbon powder for the National VI regulations, and design honeycomb carbon rods for the US LEVⅢ and Brazilian LP7 regulations (Honeycombs) carbon canister, which will increase the design cost and manufacturing cost; (2) directly adopt the carbon canister that complies with the US LEVⅢ regulation, which will increase the cost of domestic automobiles

Method used

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  • A multifunctional hc capture device and its fuel evaporation control system
  • A multifunctional hc capture device and its fuel evaporation control system
  • A multifunctional hc capture device and its fuel evaporation control system

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Embodiment Construction

[0037] The present invention will be further described in detail below with reference to specific embodiments, so as to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0038] like figure 1 As shown, a multifunctional HC capture device of the present invention includes a casing 1, the inner cavity of the casing 1 is separated and provided with a honeycomb carbon rod assembly 2 and an air filter assembly 3, and the casing 1 is provided with an OBD leakage diagnosis assembly 4. The OBD leakage diagnosis component 4 is in communication with the honeycomb carbon rod assembly 2 and the air filter assembly 3 respectively, and controls the opening or closing of the connecting channel between the honeycomb carbon rod assembly 2 and the air filter assembly 3.

[0039] like figure 2 As shown, the inner cavity of the housing 1 is provided with a separate first cavity 1.1 and a second cavity 1.2, the honeycomb carbon rod assembly 2 ...

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Abstract

The invention discloses a multifunctional HC capture device and its fuel evaporation control system. The device includes a housing, and the inner cavity of the housing is separately provided with a honeycomb carbon rod assembly and an air filter assembly. There is an OBD leakage diagnosis component, which communicates with the honeycomb carbon rod assembly and the air filter assembly respectively, and controls the opening or closing of the channel connected between the honeycomb carbon rod assembly and the air filter assembly. The multi-functional HC trapping device of the present invention has the functions of lowering the limit value of fuel evaporative emission, leak detection and air filtration, and not only has multiple functions, but also has a simple and compact structure, low price and low maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of automobile fuel vapor emission, and particularly relates to a multifunctional HC capture device and a fuel vaporization control system thereof. Background technique [0002] Gasoline is a very volatile fuel. When the car is refueling or the temperature changes, the gasoline in the fuel tank will vaporize and easily evaporate into the atmosphere, causing environmental pollution and safety hazards. Therefore, a carbon canister is added to the fuel evaporation control system. Components. The carbon canister is filled with an appropriate amount of activated carbon, and the activated carbon has developed pores, so the volatile gasoline vapor molecules in the fuel tank will be actively stored by the carbon canister. When the engine is working, the ECU sends an instruction to open the PCV valve, and the negative pressure in the throttle valve will bring the gasoline vapor in the carbon canister into the engine ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M25/08B60K15/035
CPCF02M25/0854F02M25/0809F02M25/0836B60K15/03504F02M2025/0845B60K2015/03514
Inventor 黄运忠宋志兵黄华杨依
Owner DONGFENG FUJI THOMSON THERMOSTAT
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