US 11,927,154 B2
Carbon canister with integrated fuel tank isolation valve
John C. Long, Connersville, IN (US); and George J. Mitri, Connersville, IN (US)
Assigned to Stant USA Corp., Connersville, IN (US)
Filed by Stant USA Corp., Connersville, IN (US)
Filed on Jun. 27, 2022, as Appl. No. 17/850,547.
Claims priority of provisional application 63/220,130, filed on Jul. 9, 2021.
Prior Publication US 2023/0008621 A1, Jan. 12, 2023
Int. Cl. F02M 25/08 (2006.01)
CPC F02M 25/0836 (2013.01) [F02M 25/0854 (2013.01); F02M 2025/0845 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tank venting system comprising
a housing including a media storage body formed to define a storage cavity, a plurality of vapor ports including (i) a first vapor port arranged to interconnect the storage cavity of the media storage body and an atmosphere surrounding the tank venting system in fluid communication, (ii) a second vapor port arranged to interconnect the storage cavity of the media storage body and an engine in fluid communication, and (iii) a third vapor port in fluid communication with a fuel tank; and a vapor-transfer passageway arranged to interconnect the storage cavity and the third vapor port to enable transfer of fuel vapor flowing from the fuel tank through the third port to the storage cavity of the media storage body and to enable transfer of hydrocarbon-laiden vapor flowing from the storage cavity of the media storage body through the third vapor port to the fuel tank,
a carbon bed located in the storage cavity of the media storage body that is configured to absorb hydrocarbons in the fuel vapor flowing into and out of the media storage body through each of the plurality of vapor ports, and
a fuel tank isolation valve located in the vapor-transfer passageway of the housing that is configured to regulate flow of fuel vapor in the vapor-transfer passageway between the third vapor port and the storage cavity of the media storage body,
wherein the fuel tank isolation valve includes a bottom mount member independent of the housing that is located in an opening of the vapor-transfer passageway that opens directly into the storage cavity to provide a shoulder surface engaged by other components of the fuel tank isolation valve to retain the fuel tank isolation valve in the opening of the vapor-transfer passageway, and wherein the bottom mount member includes a through hole that opens to the vapor-transfer passageway and the storage cavity of the media storage body.