Abstract: A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.

Abstract: A refueling system includes a filling station configured to store a first volume of liquid fuel, the filling station including a station receptacle, a removable fuel cartridge configured to store a second volume of liquid fuel less than the first volume of liquid fuel, and outdoor power equipment including an engine having an engine receptacle, wherein inserting the removable fuel cartridge into the station receptacle fluidly couples the filling station and the removable fuel cartridge to automatically fill the removable fuel cartridge with liquid fuel, and wherein inserting the removable fuel cartridge into the engine receptacle fluidly couples the removable fuel cartridge and the engine to provide liquid fuel to the engine.

Abstract: An engine includes a fuel tank with a fuel tank body defining an internal fuel tank volume for containing a fuel, a vent conduit integrally formed with the fuel tank body, and an air cleaner system including an air cleaner housing defining an internal air cleaner volume. The vent conduit extends between an inlet aperture and an outlet aperture. The inlet aperture is in fluid communication with the internal fuel tank volume. An opening is formed in the air cleaner housing and the vent conduit extends through the opening. The outlet aperture of the vent conduit is positioned within the internal air cleaner volume and the vent conduit provides fluid communication between the internal fuel tank volume and the internal air cleaner volume.

Abstract: A fuel tank cap includes a housing having a side wall, a bottom wall, and a receptacle, a fuel vapor adsorption material positioned within the receptacle, an inlet at least partially defined by the bottom wall and configured to provide fluid communication with a fuel tank vapor space, an outlet at least partially defined by the bottom wall and configured to provide fluid communication with the atmosphere, an internal wall extending from the bottom wall at least partially into the receptacle, and an aperture at least partially defined by the internal wall and configured to permit fuel vapor to flow in a vapor flow path from one side of the internal wall to the other side of the internal wall.

Abstract: A fuel tank cap includes a housing having a side wall, a bottom wall, and a receptacle, a fuel vapor adsorption material positioned within the receptacle, an inlet at least partially defined by the bottom wall and configured to provide fluid communication with a fuel tank vapor space, an outlet at least partially defined by the bottom wall and configured to provide fluid communication with the atmosphere, an internal wall extending from the bottom wall at least partially into the receptacle, and an aperture at least partially defined by the internal wall and configured to permit fuel vapor to flow in a vapor flow path from one side of the internal wall to the other side of the internal wall.

Abstract: A fuel tank cap for a fuel tank of an engine. The fuel tank cap includes a fuel cap cover, a housing having a side wall, a bottom wall, and a receptacle, a fuel vapor adsorption material positioned within the receptacle, an inlet disposed near the bottom wall and configured to provide fluid communication with a fuel tank vapor space, an outlet disposed near the bottom wall and configured to provide fluid communication with the atmosphere, an internal wall adjacent the bottom wall and disposed between the inlet and the outlet, and at least one aperture configured to permit fuel vapor to flow in a vapor flow path from one side of the internal wall to the other side of the internal wall.

Abstract: A fuel tank cap for a fuel tank of an engine. The fuel tank cap includes a fuel cap cover, a housing having a side wall, a bottom wall, and a receptacle, a fuel vapor adsorption material positioned within the receptacle, an inlet disposed near the bottom wall and configured to provide fluid communication with a fuel tank vapor space, an outlet disposed near the bottom wall and configured to provide fluid communication with the atmosphere, an internal wall adjacent the bottom wall and disposed between the inlet and the outlet, and at least one aperture configured to permit fuel vapor to flow in a vapor flow path from one side of the internal wall to the other side of the internal wall.

Abstract: The invention provides a fuel tank venting system for an engine. The fuel tank venting system includes a fuel tank, a carburetor, and a fuel tank vent passageway. The carburetor is coupled to the fuel tank. The fuel tank vent passageway is in fluid flow communication with the fuel tank and at least partially disposed inside the carburetor. The fuel tank venting system may further include an air filter and a roll-over valve. The air filter may include a carbon-impregnated foam element.

Abstract: An evaporative emissions control system for an engine including a fuel tank having a fuel tank vapor space, a carburetor coupled to the fuel tank, and a fuel tank cap having fuel vapor adsorption media that adsorbs vapor from the fuel tank vapor space. The fuel tank cap is in fluid communication with the carburetor via the vapor space and is configured to permit fuel vapor stored in the fuel adsorption media to be purged into the carburetor via the vapor space.