Helmeted lock ring for a sender module closure system for a fuel tank

a technology of helmeted lock and seal, which is applied in the direction of caps, applications, liquid handling, etc., can solve the problems of increasing the criticality of reliable sealing

Inactive Publication Date: 2007-02-22
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0029] The present invention is an improved sender module closure system for providing a reliable, sealed interface between the sender module and the fuel tank at the access port thereof, wherein the improvement resides in the lock ring thereof, wherein the conventional lock ring is replaced by a helmeted lock ring so as to provide, among a range of attributes, strength and protection for the sender module.

Problems solved by technology

As the size of the access port increases, issues of reliable sealing become more critical, especially in view of crashworthiness vis-a-vis the fuel tank.

Method used

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  • Helmeted lock ring for a sender module closure system for a fuel tank
  • Helmeted lock ring for a sender module closure system for a fuel tank
  • Helmeted lock ring for a sender module closure system for a fuel tank

Examples

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Embodiment Construction

[0062] The present invention is a helmeted lock ring 222, as shown at FIGS. 16 through 21B, which is structured to replace the hereinabove described prior art lock ring 122 to thereby improve the hereinabove described sender module closure system 100. In this regard, the helmeted lock ring 222 has a lock ring component 222R which is structurally and functionally the same as the aforementioned prior art lock ring 122, wherein one may be substituted for the other in the aforesaid sender module closure system. Therefore, the description hereinabove with respect to FIGS. 1 through 15 is applicable to the lock ring component 222R exactly as it is applicable to the prior art lock ring 122, so that the description and reference to FIGS. 1 through 15 in the hereinabove Background of the Invention is fully applicable to the structure and function of the lock ring component 222R with respect to the sender module closure system 100. Accordingly, like components and features as discussed herein...

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Abstract

An improved sender module closure system for providing a reliable, sealed interface between a sender module and a fuel tank at the access port thereof, includes an interfacing ring set composed of a base ring and a helmeted lock ring. The base ring is permanently connected to the fuel tank at the access port, and has a plurality of upstanding lock fingers. The helmeted lock ring is a separate piece, composed of a lock ring component and an integrally connected helmet component. The lock ring component has a plurality of finger apertures, one for receiving each lock finger. The helmet component protectively covers the sender module and has helmet apertures for external access to connectors of the sender module.

Description

TECHNICAL FIELD [0001] The present invention relates to automotive fuel tanks, particularly the closure system used for sealingly interfacing therewith the sender module, and more particularly to a helmeted lock ring therefor. BACKGROUND OF THE INVENTION [0002] Automotive fuel tanks have an access port at an upper wall thereof through which fuel passes and various components are placed, as for example a fuel depth sensor and a fuel pump. Supporting the various components at the access port in sealing relation with the fuel tank is a sender module, which is commonly of plastic construction. [0003] Historically, the integrity of the seal of the sender module with respect to the fuel tank has been a matter of continuing engineering interest. One of the driving forces behind this interest is ever tightening government vapor emissions rules, wherein emissions concerns may be amplified by manufacturing tolerance variations. An additional cause for engineering interest is the need to incre...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D41/06B65D53/00
CPCB60K15/0406B60K15/04
Inventor KRENTZ, RICHARD H.BETZ, GERARD G. IIGADEN, DALE D.HART, MITCHELL E.NOVACO, RICHARD A.PRESTON, KENNETH A.ADAMS, WESLEYSIDDIQUI, M. SAIF
Owner GM GLOBAL TECH OPERATIONS LLC
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