Patent · US Active

Passive evaporative emission control module

US7610905B2 · kind B2 · utility

5Cited by

8References

13Claims

0Family size

Inventors

Douglas Callahan · Rochester Hills, US
Brent J. Ertl · Darien, US
Juris Julijs Pruzinskis · Janesville, US
Michael Farrey · Walworth, US
Hans Bishop · Royal Oak, US

Key dates

Filing date	Dec 21, 2007
Grant date	Nov 3, 2009
Priority date	—
Expiry date	Dec 21, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2259/4516
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An emission control module (14) includes a housing (52) that includes an atmospheric air opening (102) and a vapor emission inlet (104) for communication with a vapor region (32) of a fuel reservoir (16). A hydrocarbon filter (56) is disposed between the atmospheric air opening (102) and the vapor emission inlet (104) to passively filter vapor emissions within the vapor region (32). The housing (52) is configured for purging of the hydrocarbon filter (56) due to a low-pressure draw from the vapor emission inlet (104).

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