Can
By overlapping the beveled surface of the support ring with the ring main body part in the initial state, and combining chamfering processing or cap parts to cover the support ring, the problem of damage to the support ring in the hydrogen tank seal structure is solved, and a higher sealing and service life is achieved.
CN115708237BActive Publication Date: 2025-03-18TOYOTA JIDOSHA KK
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Patent Information
- Application Number
- CN202210897429.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-08-18
- Filing Date
- 2022-07-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2042-07-28
AI Technical Summary
Technical Problem
In the existing hydrogen tank sealing structure, the processing dimension deviation of the support ring and the expansion caused by gas filling will shift the beveled surface position, resulting in stress concentration and damage.
Method used
In the initial state, the beveled surface of the support ring overlaps the ring body part and is installed in the outer peripheral groove. In this way, stress concentration in the thin-walled portion is reduced when gas is filled, and the sealing member is protected by chamfering or cap member covering.
Benefits of technology
It effectively prevents damage to the support ring and sealing components, and improves the sealing and service life of the tank.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention provides a tank, comprising: a liner having a cylindrical opening; and a manifold having an insertion portion that closes the opening. An outer peripheral groove is provided in the insertion portion. An O-ring for sealing between the insertion portion and the opening and a support ring arranged at the outer side of the tank than the O-ring are installed in the outer peripheral groove. The support ring has an elongated ring body and chamfered surfaces formed at both ends of the ring body and inclined relative to the length direction of the ring body. In the initial state before filling the tank with gas, the support ring is installed in the outer peripheral groove in a state in which at least a part of each chamfered surface overlaps with a part of the ring body.
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