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A double-valve type refueling device without a lock cap

A refueling device and lock cover technology, which is applied in the direction of power devices, transportation and packaging, and the arrangement combined with the fuel supply of internal combustion engines, can solve the problems of inconvenient parking and refueling operations, no introduction, etc., and prevent the entry of impurities and pollutants , prevent the pressure from being too small or too large, and prevent the leakage of oil and steam

Active Publication Date: 2019-06-28
扬州华光新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the need to open two covers when refueling, it is inconvenient to park and refuel. For this reason, Ford invented the technology of refueling without a lock cover. For example, in the patent No. US2012 / 217240A1, a lockless However, this patent does not introduce whether this device can adjust the air pressure inside the fuel tank. Therefore, the present invention redesigns the refueling device without a lock cap so that it can adjust the air pressure inside the fuel tank.

Method used

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  • A double-valve type refueling device without a lock cap
  • A double-valve type refueling device without a lock cap
  • A double-valve type refueling device without a lock cap

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0031] Such as figure 1 , a double-valve type non-lock cap refueling device of the present invention, the metal refueling pipe 12 is sleeved with a tubular valve seat 11, the metal refueling pipe 12 has a step bevel e, and the corresponding position of the valve seat 11 also has a corresponding step The hypotenuse fixes the position of the valve seat 11 relative to the metal filling pipe 12, and plays the role of positioning. There is a gap of about 0.2 mm between the valve seat 11 and the metal filling pipe 12, and an O-ring 14 is arranged in the gap. Seal the filling pipe to prevent the gas in the fuel tank from flowing out along the gap between the filling pipe and the valve seat.

[0032] The valve cover 10 is tightly pressed on the upper end surface of the valve seat 11, and there is a buckle on the valve cover 10. By pressing, the buckle is snapped into the squ...

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Abstract

The invention discloses a bivalve type fueling device without a lock cover, which comprises a valve seat sleeved in a fueling pipe and a valve cover pressed on the valve seat. The valve seat comprises an upper valve assembly and a lower valve assembly, the upper valve assembly and the lower valve assembly has similar structures, the valve assemblies can rotate around support pins and are sealed with the valve seat, and the valve assemblies have the function of automatic adjustment of air pressure; each of the valve assemblies mainly comprises a sealing ring, a valve ring-shaped frame, a valve body, a spring, a valve core, a spring support frame, a bias spring and a support pin; the upper valve assembly is pressed against the valve seat by the upper bias spring in a certain inclination angle, and the lower valve assembly is pressed against the valve seat by the lower bias spring. The valve cover is tightly pressed on the metal fueling pipe by a buckle and is sealed by a sealing ring, and the valve seat is sealed with the metal fueling pipe by an O-shaped sealing ring. According to the bivalve type fueling device without the lock cover, the leakage of oil liquid and oil vapor can be prevented, the evaporative emission requirement of the future 'China VI' standard is met, and impurities and pollutants are prevented from entering a fuel system.

Description

technical field [0001] The invention relates to a refueling device without a lock cap, which mainly relates to the ability to prevent the leakage of oil liquid and oil vapor during refueling, prevent impurities and pollutants from entering the fuel system, meet the evaporative emission requirements of the "National VI" standard in the future, and at the same time be able to adjust the fuel tank the air pressure inside. Background technique [0002] The fuel filler port of a car generally has two covers, which are called the fuel tank cap and the body fuel filler cap. The former is fastened on the neck of the fuel tank filler pipe to ensure the sealing of the fuel tank and adjust the air pressure in the fuel tank; the latter is fixed on the vehicle body and can be flipped open; it is used to cover the fuel tank cap. However, due to the need to open two covers when refueling, it is inconvenient to park and refuel. For this reason, Ford invented the technology of refueling wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K15/04
CPCB60K15/04B60K2015/0458
Inventor 丁浩何仁
Owner 扬州华光新材料股份有限公司
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