Patent · US Active

Closure device for controlling evaporative emissions from a fuel tank

US10052946B2 · kind B2 · utility

3Cited by
10References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 2015
Grant dateAug 21, 2018
Priority date—
Expiry dateMay 30, 2036

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60K2015/03547
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A closure device, such as a fuel cap, for controlling evaporative emissions from a fuel tank. In one aspect, the invention comprises: a housing defining an internal chamber about a central axis; a diffuser plate positioned within the internal chamber that separates the internal chamber into an upper zone and a lower zone; a hydrocarbon adsorbing media disposed in the upper zone of the internal chamber; an inlet passageway for introducing fuel vapor from a fuel vapor inlet port to the lower zone of the internal chamber; and at least one outlet passageway extending from the upper zone of the internal chamber to an atmospheric air outlet port.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.