Check valve for fuel tank
US10773589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Aug 14, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/0477
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A check valve for fuel tank comprises a joint that is fixed to a fuel tank, a passage forming part, and a valve member. The joint is connected to one end of the passage forming part, and an outlet is formed at the other end of the passage forming part. The valve member that opens and closes the outlet. The valve member comprises a valve element, a spring bearing part, a holding part continuous to at least one of the joint and the passage forming part, and a compression coil spring. The joint and the passage forming part are communicated to each other to form a fuel passage. At the end on the joint side of the passage forming part in the fuel passage, there is formed a diameter enlarged portion having an inner diameter gradually increasing from a fuel supply pipe side toward the outlet side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.