Fueling accessories for refueling motor vehicles with gaseous fuels

A gaseous fuel and refueling technology, which is applied to the layout combined with the fuel supply of internal combustion engines, vehicle components, gas/liquid distribution and storage, etc., can solve problems such as leaks, separation from the refueling process, and problems, and achieve simplification The effect of manufacture

Active Publication Date: 2021-11-02
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, problems can also arise during refueling due to leaks caused by aging or use after the infrastructure-side refueling device has been inserted into the vehicle-side refueling fitting
In particular, a pressure can build up between the infrastructure-side refueling device and the vehicle-side refueling fitting, which leads to detachment of the refueling device from the refueling fitting and thus to an undesired interruption of the refueling process.

Method used

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  • Fueling accessories for refueling motor vehicles with gaseous fuels
  • Fueling accessories for refueling motor vehicles with gaseous fuels
  • Fueling accessories for refueling motor vehicles with gaseous fuels

Examples

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Embodiment Construction

[0029] first reference Figure 1 to Figure 3 .

[0030] The refueling fitting 1 can be seen in the figure. The refueling fitting 1 is constructed rotationally symmetrically about the longitudinal axis L. As shown in FIG. The refueling fitting 1 has a hollow base body 2 with a receiving chamber 4 situated therein. The receptacle 4 is substantially hollow-cylindrical and has an end-side bottom 4 a and an access opening E. FIG. An infrastructure-side (ie, fueling station-side) refueling device 19 can be inserted into the receiving chamber 4 via the access opening E.

[0031] It can be seen that the refueling device 19 has a plug-in length l1 which is smaller than the length l2 of the receiving chamber 4 . As a result, a distance is formed between the bottom 4 a of the receptacle 4 and the end-side end 19 a of the refueling device 19 . This distance is preferably from about 1 mm to about 8 mm. Preferably, the refueling device 19 is configured as a pluggable socket (Nippel, a...

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Abstract

The invention relates to a refueling fitting (1) for refueling a motor vehicle with gaseous fuel. The refueling fitting has a base body (2) in which is arranged a receiving chamber (4) with an access opening (E) for receiving an infrastructure-side refueling device (19). There is at least one channel-like connection ( 3 a , 3 b ) for conveying gaseous fuel from the receiving chamber ( 4 ) in the direction of the outlet chamber ( 7 ). According to the invention, it is proposed that at least one further channel-like connection (6) leads into the receiving chamber (4), which is not used for the discharge chamber (7) from the receiving chamber (4) The gaseous fuel is conveyed in the direction of , and a pressure equalization between the receiving chamber ( 4 ) and the environment (U) is achieved via the at least one further channel-like connection. In this way, even in the case of a non-flawless state of the seals ( 22 a , 22 b ) of the refueling device ( 19 ), a flawless functioning of the refueling process can be guaranteed.

Description

technical field [0001] The invention relates to a refueling fitting (Betankungsarmatur, also sometimes called refueling fitting) for refueling a motor vehicle with a gaseous fuel. Background technique [0002] The refueling of gas-operated vehicles is carried out with this type of refueling fitting. In particular, natural gas-operated motor vehicles are gaining more and more attention because of their relatively low pollutant emissions and fuel consumption. [0003] For example, from EP 0 925 202 B1 and also from DE 102 53 684 A1 a refueling fitting is known which has a base body in which a receiving cavity is arranged, which There is an inlet opening for accommodating an infrastructure-side refueling device, wherein there is at least one channel-like connection for conveying the gaseous fuel from the accommodating chamber in the direction of the outlet chamber. In both indicated solutions, the refueling fitting is fastened in the region of the housing of the motor vehicle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K15/03
CPCB60K15/03006B60K2015/03019B60K2015/03236B60K2015/03355B60K2015/0461B60K2015/048F17C2205/037
Inventor K.韦塞尔斯
Owner VOLKSWAGEN AG
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