Abstract: An internal combustion engine includes an engine block, a piston, and a cylinder head. The engine block includes a cylinder block having a cylinder bore, a crankcase defining a crankcase chamber with a crankshaft positioned within the crankcase chamber, and a cylinder sleeve fabricated from a self-lubricating plastic material. The cylinder head is coupled to the cylinder block to form a combustion chamber. The piston includes a piston top adjacent the combustion chamber, a piston body including a wrist pin hole configured to receive a wrist pin, a first piston ring positioned on the piston body, and a non-metallic gasket positioned on the piston body closer to the combustion chamber than the first piston ring and structured to prevent combustion gases from escaping the combustion chamber. The crankcase chamber is oilless.

Abstract: One embodiment of the invention relates to an internal combustion engine including an engine block having a first cylinder and a second cylinder, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an air filter assembly, a first electric fan coupled to a first duct, and a second electric fan coupled to a second duct. The first duct is configured to direct cooling air directly over the first cylinder. The second duct is configured to direct cooling air directly over the second cylinder. The first cylinder is at least partially within the first duct. The second cylinder is at least partially within the second duct.

Abstract: A trailer includes a first power equipment having an equipment battery pack, a charging device having a primary battery pack, and a docking station electrically connected to the primary battery pack. When the first power equipment is positioned in the docking station, the docking station supplies power from the primary battery pack to the equipment battery pack to recharge the equipment battery pack.

Abstract: A small-air cooled internal combustion engine includes an engine block including a cylinder, a piston within the cylinder, a crankshaft configured to be driven by the piston, a blower system including a fan that is configured to pull air over the engine block, a fuel system for supplying an air-fuel mixture to the cylinder, and an exhaust system for removing exhaust from the cylinder. The exhaust system comprises an exhaust inlet, a muffler and, a catalytic converter including a catalyst. The catalyst comprises a precious metal loading having ruthenium as a primary element by mass.

Abstract: One embodiment of the invention relates to an internal combustion engine including an engine block having a first cylinder and a second cylinder, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an air filter assembly, a first electric fan coupled to a first duct, and a second electric fan coupled to a second duct. The first duct is configured to direct cooling air directly over the first cylinder. The second duct is configured to direct cooling air directly over the second cylinder. The first cylinder is at least partially within the first duct. The second cylinder is at least partially within the second duct.

Abstract: An internal combustion engine includes an engine block, a piston, a cylinder head, and a valve train. The engine block includes a cylinder block including a cylinder bore and a crankcase defining a crankcase chamber with a crankshaft positioned within the crankcase chamber. The piston is coupled to the crankshaft and configured to reciprocate within the cylinder bore. The cylinder head is coupled to the cylinder block. The valve train includes a camshaft, a first and second pushrod, a first and second rocker arm, an exhaust valve housed, and an intake valve. The first rocker arm, the second rocker arm, the exhaust valve, and the intake valve each include at least a layer of a low friction material. The first and second pushrod each pass through a pushrod seal to prevent fluid from reaching the rocker chamber to fluidly isolate the rocker chamber from the crankcase chamber.

Abstract: A transportation vehicle including a plurality of battery packs, a plurality of power equipment, and a controller. The controller is configured to identify at least one of the plurality of power equipment or at least one of the plurality of battery packs that requires charging and direct power through a bus to distribute power to at least one of the plurality of power equipment or at least one of the plurality of battery packs. The plurality of battery packs are configured to recharge the plurality of power equipment.

Abstract: One embodiment of the invention relates to an electronic fuel injection module including a throttle body including a throat extending between an inlet port and an outlet port and a fuel delivery injector too unit. The fuel delivery injector unit includes a cavity, a fuel inlet, a magnetic assembly, a pumping assembly, a spring, a valve seat, a valve, and an out valve. The fuel inlet receives fuel and directs fuel into the cavity. The magnetic assembly is within the cavity and includes a magnet, a pole, and a hollow sleeve. The pumping assembly includes a bobbin and piston. The bobbin is configured to move the pumping assembly. The piston is coupled to the bobbin. The valve seat is located at one end of the piston. The valve selectively allows fuel to flow into a pressure chamber. The out valve is configured to provide fuel to the throat.

Abstract: An internal combustion engine includes an engine block, a piston, a cylinder head, and a valve train. The engine block includes a cylinder block including a cylinder bore and a crankcase defining a crankcase chamber with a crankshaft positioned within the crankcase chamber. The piston is coupled to the crankshaft and configured to reciprocate within the cylinder bore. The cylinder head is coupled to the cylinder block. The valve train includes a camshaft, a first and second pushrod, a first and second rocker arm, an exhaust valve housed, and an intake valve. The first rocker arm, the second rocker arm, the exhaust valve, and the intake valve each include at least a layer of a low friction material. The first and second pushrod each pass through a pushrod seal to prevent fluid from reaching the rocker chamber to fluidly isolate the rocker chamber from the crankcase chamber.

Abstract: An internal combustion engine includes an engine block including a cylinder a piston positioned within the cylinder and configured to reciprocate in the cylinder, an electronic throttle control system comprising a motor and a throttle plate, a fuel system for supplying a controlled amount of fuel to the cylinder including a fuel injector, and an engine control unit coupled to the fuel system and the electronic throttle control system. The engine control unit is configured to determine engine speed data comprising a current engine speed, a previous engine speed, and a desired engine speed and control a fuel injection duration based on the engine speed data.

Abstract: One embodiment of the invention relates to an internal combustion engine including an engine block having a first cylinder and a second cylinder, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an air filter assembly, a first electric fan coupled to a first duct, and a second electric fan coupled to a second duct. The first duct is configured to direct cooling air directly over the first cylinder. The second duct is configured to direct cooling air directly over the second cylinder. The first cylinder is at least partially within the first duct. The second cylinder is at least partially within the second duct.

Abstract: An internal combustion engine includes an engine block including a cylinder a piston positioned within the cylinder and configured to reciprocate in the cylinder, an electronic throttle control system comprising a motor and a throttle plate, a fuel system for supplying a controlled amount of fuel to the cylinder including a fuel injector, and an engine control unit coupled to the fuel system and the electronic throttle control system. The engine control unit is configured to determine engine speed data comprising a current engine speed, a previous engine speed, and a desired engine speed and control a fuel injection duration based on the engine speed data.

Abstract: One embodiment of the invention relates to an internal combustion engine including an engine block, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an electric fan, and an air filter assembly configured to filter incoming air from an air intake and provide cleaned air to a throttle body. The engine block includes a cylinder. The throttle body is configured to throttle incoming air to the cylinder.

Abstract: An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder and configured to reciprocate in the cylinder, an electronic throttle control system including a motor and a throttle plate, an air flow sensor configured to detect an air mass flow rate, a fuel system for supplying a controlled amount of fuel to the cylinder including a fuel injector, and an engine control unit coupled to the fuel system and the electronic throttle control system. The engine control unit is configured to determine engine speed data including a current engine speed, a previous engine speed, and a desired engine speed, control a fuel injection duration based on the engine speed data, determine air-fuel ratio data comprising a current air-fuel ratio and a desired air-fuel ratio, and control a throttle plate position based on the air-fuel ratio data.

Abstract: Portable jobsite equipment includes a generator including an internal combustion engine and an alternator. The internal combustion engine includes a first cylinder including a first spark plug configured to create a first electrical spark, a second cylinder including a second spark plug configured to create a second electrical spark, an electronic control unit configured to activate and deactivate at least one of the first cylinder and the second cylinder, and a load source receiving supplied power from the generator. The electronic control unit activates one of the first cylinder and the second cylinder in response to a threshold increase of the load source.

Abstract: One embodiment of the invention relates to an electronic fuel injection module including a throttle body including a throat extending between an inlet port and an outlet port and a fuel delivery injector too unit. The fuel delivery injector unit includes a cavity, a fuel inlet, a magnetic assembly, a pumping assembly, a spring, a valve seat, a valve, and an out valve. The fuel inlet receives fuel and directs fuel into the cavity. The magnetic assembly is within the cavity and includes a magnet, a pole, and a hollow sleeve. The pumping assembly includes a bobbin and piston. The bobbin is configured to move the pumping assembly. The piston is coupled to the bobbin. The valve seat is located at one end of the piston. The valve selectively allows fuel to flow into a pressure chamber. The out valve is configured to provide fuel to the throat.

Abstract: A transportation vehicle including a plurality of battery packs, a plurality of power equipment, and a controller. The controller is configured to identify at least one of the plurality of power equipment or at least one of the plurality of battery packs that requires charging and direct power through a bus to distribute power to at least one of the plurality of power equipment or at least one of the plurality of battery packs. The plurality of battery packs are configured to recharge the plurality of power equipment.

Abstract: A fuel delivery injector includes a housing, an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity, and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity. A magnetic assembly is fixedly positioned within the cavity, and a pumping assembly includes a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position. A valve is positioned within the piston and is movable between an open position and a closed position. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.

Abstract: An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder and configured to reciprocate in the cylinder, an electronic throttle control system including a motor and a throttle plate, an air flow sensor configured to detect an air mass flow rate, a fuel system for supplying a controlled amount of fuel to the cylinder including a fuel injector, and an engine control unit coupled to the fuel system and the electronic throttle control system. The engine control unit is configured to determine engine speed data including a current engine speed, a previous engine speed, and a desired engine speed, control a fuel injection duration based on the engine speed data, determine air-fuel ratio data comprising a current air-fuel ratio and a desired air-fuel ratio, and control a throttle plate position based on the air-fuel ratio data.

Abstract: A fuel delivery injector includes a housing, an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity, and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity. A magnetic assembly is fixedly positioned within the cavity, and a pumping assembly includes a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position. A valve is positioned within the piston and is movable between an open position and a closed position. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.