US 12,241,436 B2
Air intake port for a lean-burn gasoline engine
Jack Johnson, Coventry (GB); and Lyn McWilliam, Coventry (GB)
Assigned to JAGUAR LAND ROVER LIMITED, Coventry (GB)
Appl. No. 18/284,123
Filed by JAGUAR LAND ROVER LIMITED, Warwickshire (GB)
PCT Filed Mar. 26, 2021, PCT No. PCT/EP2021/057933
§ 371(c)(1), (2) Date Sep. 26, 2023,
PCT Pub. No. WO2022/199844, PCT Pub. Date Sep. 29, 2022.
Prior Publication US 2024/0167441 A1, May 23, 2024
Int. Cl. F02M 35/10 (2006.01)
CPC F02M 35/10091 (2013.01) [F02M 35/10262 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A lean-burn gasoline engine comprising;
at least one air intake port, the at least one air intake port comprising an air inlet, at least one air outlet, and an air channel connecting the air inlet to the at least one air outlet, the air channel comprising an air channel floor and an air channel ceiling, wherein the air channel floor is at least substantially flat in a direction of air flow in a region adjacent to the air outlet;
a combustion chamber with at least one air inlet being connected to the at least one air outlet of the air intake port, the air inlet of the combustion chamber comprising a throat where the air outlet of the air intake port meets the air inlet of the combustion chamber; and
a movable valve being arranged to move between a closed state for closing off the air inlet of the combustion chamber and an opened state wherein intake air can flow from the air intake port into the combustion chamber, the throat providing a smooth edge with the channel ceiling, such as to adhere an incoming air flow to a combustion chamber ceiling.