Abstract: An air intake port (10) for a lean-burn gasoline engine (110) comprises an air inlet (14), at least one air outlet (15a, 15b), and an air channel connecting the air inlet (14) to the at least one air outlet (15a, 15b). The air channel comprises an air channel floor (42) and an air channel ceiling (41). The air channel floor (42) is at least substantially flat in a direction of air flow in a region adjacent to the air outlet (15a, 15b).

Abstract: A ground transportation vehicle includes a container having a bucket, a hook, and a handle, and a suspension system connected to the container and having first and second rockers and bogies, a plurality of wheels, a plurality of wheel connectors, and one or more variable fasteners. A method of operating a ground transportation vehicle is disclosed. Embodiments of the present disclosure provide solutions to ground transportation of supplies from disaster relief distribution sites to the homes or present lodging locations of disaster victims. In particular, solutions of the present disclosure provide efficient and ergonomic ground transportation when compared to conventional techniques currently used.

Abstract: A lean-burn gasoline engine (110) is described, which comprises an air intake port having an air intake port inlet, an air intake port outlet, and an air channel (45) connecting the air intake port inlet to the air intake port outlet, a combustion chamber (50) having a combustion chamber inlet being connected to the air intake port outlet, the combustion chamber inlet having a throat where the air intake port outlet meets the combustion chamber inlet, a movable valve (51) comprising a valve head bottom surface (61) that faces the combustion chamber (50), a valve head top surface (62) that faces the air intake port and a valve stem (53), the movable valve (51) being arranged to move between a closed state for closing off the combustion chamber inlet and an opened state wherein intake air can flow from the air intake port into the combustion chamber (50), and a valve guide opening (69) in an upper wall of the air channel opposite the top surface (62) of the movable valve (51), and a valve guide passage (66) ext

Abstract: A piston for a lean-burn gasoline engine comprising a cylinder, an air inlet and an exhaust outlet, wherein the air inlet and the exhaust outlet are arranged about a longitudinal axis of the cylinder. The piston comprises a central axis which is aligned with the longitudinal axis of the cylinder. The working surface (79) of the piston (454) comprises a central dished portion and an outer sloped portion surrounded by an outer sloped portion. A first pair of valve pockets (444a, 444b) are located in the outer sloped portion on a first side of the dished portion, and a second pair of valve pockets (445a, 445b) located in the outer sloped portion on the second side of the dished portion. The dished portion comprises a ramp protuberance located between the first pair of valve pockets. The dished portion is configured to promote tumble of air flow into the cylinder from the air inlet, in use during an intake stroke of the piston.

Abstract: An air intake port (10) for a lean-burn gasoline engine (110) comprises an air inlet (14), two air outlets (15a, 15b), and an air channel connecting the air inlet (14) to the two air outlets (15a, 15b) and comprising an upstream common duct (11) and two downstream port legs (12a, 12b), the two downstream port legs (12a, 12b) branching off from the common duct (11) at a bifurcation point (13). A total cross section of the air intake port (10) gradually decreases between the air inlet (14) and the two air outlets (15a, 15b). A gradient of decrease of the total cross section is locally reduced in a region adjacent the bifurcation point (13).

Abstract: An apparatus for aligning and supporting a rotatable shaft through a plastic molded support member includes an integral boss formed in the plastic molded support allowing insertion of the rotatable shaft to be supported therethrough. At least one bearing is associated with the boss for establishing proper orientation of a rotational axis of the rotatable shaft to be mounted through the boss. At least one bearing is press fit into the boss. In the preferred configuration, a pair of hat-shaped cylindrical bearings are press fit in opposite ends of the boss to define the rotational axis of the shaft to be mounted through the boss.

Abstract: An apparatus for aligning and supporting a rotatable shaft through a plastic molded support member includes an integral boss formed in the plastic molded support allowing insertion of the rotatable shaft to be supported therethrough. At least one bearing is associated with the boss for establishing proper orientation of a rotational axis of the rotatable shaft to be mounted through the boss. At least one bearing is press fit into the boss. In the preferred configuration, a pair of hat-shaped cylindrical bearings are press fit in opposite ends of the boss to define the rotational axis of the shaft to be mounted through the boss.

Abstract: An apparatus for supporting an assembly including a wiper drive motor, a linkage, and a pair of wiper arm drive shafts with respect to a windshield of a motor vehicle to be cleaned includes a molded cowl/plenum member having two integral bosses extending therethrough. Each boss receives a wiper arm drive shaft extending therethrough. The cowl/plenum member also includes an integral wiper drive motor mount. At least one bearing is associated with each boss for establishing the proper orientation of a rotational axis of each drive shaft to be mounted through the integral bosses. The bearing preferably includes a pair of hat-shaped cylindrical bearings press fit into opposite ends of each boss to define the rotational axis of the drive shaft.