China VI metal fuel tank

A fuel tank and metal technology, which is applied to the layout, power plant, vehicle parts, etc. combined with the fuel supply of the internal combustion engine, can solve the problems of uneven tightening pressure, poor sealing effect of the fuel tank, and uneven extrusion deformation of the sealing ring.
CN110626165BActive Publication Date: 2021-03-16南昌江铃华翔汽车零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南昌江铃华翔汽车零部件有限公司
Publication Date
2021-03-16

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Abstract

The invention provides a national six metal fuel tank, which includes a national six fuel tank body, a gravity valve, an oil pump assembly and an oil filling pipe. The national six fuel tank body is made from metal, and is provided with a lower tank body and an upper tank body sealing and covering an opening of the lower tank body, the lower tank body and the upper tank body form an accommodationchamber for storing fuel, the gravity valve is internally arranged at the inner top of the upper tank body, and is connected with the upper tank body in a sealed mode through an installation assembly,the oil pump assembly is located in the accommodation chamber, and provided with an oil pump and an oil measurement sensor assembly which are installed on the bottom wall of the lower tank body, theoil filling pipe is fixed to one side wall of the national six fuel tank body, an oil filling port communicates with the accommodation chamber, and a check valve sleeves the position, in the accommodation chamber, of an oil filling pipeline. A plurality of leakage points on the fuel tank are reduced, oil gas evaporation emission of the fuel tank can be effectively reduced, thus the function of oilgas evaporation emission is lowered, the product environment-friendly performance is improved, and thus fuel emission of the fuel tank meets higher standards.
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Description

technical field

[0001] The present invention relates to the field of fuel tanks, and more specifically, to the National VI metal fuel tank. Background technique

[0002] With the development of the national automobile industry, the country is about to implement the national six emission standards for automobiles. The state and society have put forward higher requirements for the environmental protection of vehicles. Compared with the national five emission standards, the national six emission standards for automobiles have stricter limit requirements by 40%. -50%, the fuel tank is used as the main part of the fuel storage system of the vehicle, and the environmental protection is also required to be improved.

[0003] The existing fuel tank requires an opening on the fuel tank due to the arrangement of the gravity valve, and the opening on the fuel tank becomes a leakage point for oil vapor to evaporate and discharge; moreover, when the oil cap on the filling pipe is opened,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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