US 12,280,656 B2
Carbon canister with direct connect 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 Oct. 18, 2022, as Appl. No. 17/968,434.
Claims priority of provisional application 63/257,084, filed on Oct. 18, 2021.
Prior Publication US 2023/0117796 A1, Apr. 20, 2023
Int. Cl. B60K 15/03 (2006.01); B60K 15/035 (2006.01); F02M 25/08 (2006.01); F02D 41/00 (2006.01)
CPC B60K 15/03519 (2013.01) [B60K 15/03504 (2013.01); B60K 2015/03296 (2013.01); B60K 2015/03493 (2013.01); B60K 2015/03514 (2013.01); B60K 2015/03557 (2013.01); F02D 41/004 (2013.01); F02M 25/0836 (2013.01); F02M 2025/0845 (2013.01); F02M 25/0854 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A tank venting system comprising
a housing including a media storage body formed to define a storage cavity and a storage body closure coupled to the media storage body to close a top opening to the storage cavity, the storage body closure including a cover panel that couples to the media storage body and a valve housing that extends from the cover panel and formed to define a vapor port in fluid communication with a fuel tank and a vapor-transfer passageway arranged to interconnect the storage cavity and the vapor port to enable transfer of fuel vapor flowing from the fuel tank through the vapor port to the storage cavity of the media storage body and to enable transfer of hydrocarbon-laden vapor flowing from the storage cavity of the media storage body through the 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 the vapor-transfer passageway, and
a fuel tank isolation valve located in the vapor-transfer passageway of the storage body closure that is configured to regulate flow of fuel vapor in the vapor-transfer passageway between the vapor port and the storage cavity of the media storage body,
wherein the fuel tank isolation valve includes a stationary perforated partition plate located in the vapor-transfer passageway defined by the valve housing to partition the vapor-transfer passageway to establish a tank-side chamber communicating with the vapor port on a first side of the stationary perforated partition plate and a storage-side chamber communicating with the storage cavity of the media storage body on an opposite second side of the stationary perforated partition plate, and
wherein the valve housing includes an outer wall that extends axially from the cover panel away from the storage cavity relative to a central vertical axis of the fuel tank isolation valve, an inner wall extends axially from the outer wall relative to the axis into the storage cavity, and a vapor pipe that extends radially from the outer wall, the inner wall defines the vapor-transfer passageway such that the vapor-transfer passageway extends axially relative to the central vertical axis and opens into the storage cavity, and the vapor pipe forms the vapor port.