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Drain tank of evaporated fuel treatment device and vehicle

A technology for evaporating fuel and processing devices, which is applied in the field of vehicles and can solve the problems of being attracted, entering, etc.

Active Publication Date: 2020-08-11
HONDA MOTOR CHINA INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the conventional exhaust tank, the same breather pipe connection (breather pipe) is used when the evaporated fuel is discharged from the carbon canister and when the internal combustion engine is introduced into the external air. May be attracted when the internal combustion engine introduces outside air
In addition, when the top end of the snorkel is submerged in water outside the vehicle, water may enter the exhaust tank through the snorkel.

Method used

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  • Drain tank of evaporated fuel treatment device and vehicle
  • Drain tank of evaporated fuel treatment device and vehicle
  • Drain tank of evaporated fuel treatment device and vehicle

Examples

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the following description, unless otherwise specified, front and rear, up and down, and left and right mean front and rear, up and down, and left and right of the vehicle. In addition, arrow FR in the figure indicates the front of the vehicle, and arrow UP indicates the upper side of the vehicle.

[0030] figure 1 It is a longitudinal cross-sectional view of a vehicle 1 in which the evaporated fuel processing device 10 according to the embodiment is mounted, along the front-rear direction of the vehicle body.

[0031] In the vehicle 1 , bottom side members 3 such as a floor panel and a cross member are disposed below a vehicle body side space 2 such as a passenger compartment or a luggage compartment. An under cover 4 covering the lower side of the vehicle 1 is attached below the bottom side member 3 . An evaporated fuel processing device 10 is arranged...

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Abstract

The invention provides a discharge tank of an evaporative fuel processing device and a vehicle. The discharge tank of the evaporative fuel processing device discharges evaporative fuel passing through a carbon canister to the outside, and introduces atmospheric air when adsorbed fuel of the carbon canister is attracted to an internal combustion engine. The discharge tank of the evaporative fuel processing device comprises a carbon canister connecting port connected with the carbon canister, a vent pipe connecting part which opens to the atmosphere via a vent pipe, and an atmospheric communication part, wherein the opening area of the atmospheric communication part is larger than that of a vent opening to the atmosphere at the top end of the vent pipe; and the opening position of the atmospheric communication part is located above the vent opening. According to the discharge tank of the evaporative fuel processing device and a vehicle having the discharge tank of the evaporative fuel processing device, water droplets and foreign substances are prevented from being sucked into the discharge tank via the vent pipe.

Description

technical field [0001] The present invention relates to a drain box of an evaporated fuel treatment device, and a vehicle equipped with the drain box. Background technique [0002] Vehicles that use gasoline as fuel are equipped with evaporated fuel processing devices. The evaporated fuel processing device adsorbs the fuel evaporated in the fuel tank to a canister, and introduces the fuel adsorbed by the canister together with external air into the combustion chamber when the internal combustion engine is running. [0003] As such an evaporated fuel processing device, there is known an evaporated fuel processing device in which a discharge tank is connected to a passage on the purge side of a canister (for example, refer to Patent Document 1). [0004] The exhaust box has a canister connection port connected to the canister, and a vent pipe connection portion opened to the atmosphere through the vent pipe. The canister connection port is connected to a passage on the desor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M25/08
CPCF02M25/08F02M25/089F02M2025/0863
Inventor 内海丰铃木翼龙明敏
Owner HONDA MOTOR CHINA INVESTMENT CO LTD
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