Abstract: A rotary lawn mower includes an internal combustion engine, a blade, and a deck. The internal combustion engine includes an engine block having a crankcase and a cover. The crankcase surrounds a crankshaft, which powers the blade. The blade spins below the deck during operation of the rotary lawn mower. The deck is integrally formed with the cover.

Abstract: A rotary lawn mower includes an internal combustion engine, a blade, and a deck. The internal combustion engine includes an engine block having a crankcase and a cover. The crankcase surrounds a crankshaft, which powers the blade. The blade spins below the deck during operation of the rotary lawn mower. The deck is integrally formed with the cover.

Abstract: An engine mounting system for power equipment includes a tubular frame, an internal combustion engine, and one or more supports for mounting the engine to the tubular frame. The internal combustion engine includes an engine block and a crankcase cover attached to the engine block. The one or more supports are integrally cast with and extend away from at least one of the engine block and the crankcase cover. Additionally, the one or more supports are designed to be mounted to the frame and are contoured to match a portion of a profile of the frame.

Abstract: A pressure washer system includes an internal combustion engine and a water pump. The internal combustion engine includes an engine block forming a chamber and a cover for the chamber. The cover has an area designed to hold a lubricant. Additionally, the engine includes a crankshaft within the chamber. The water pump includes a pumping mechanism, an inlet, an outlet, and a fluid passage. The pumping mechanism is powered by the crankshaft. Water enters the pump through the inlet and exits the pump through the outlet. The fluid passage extends between the inlet and the outlet. A portion of the fluid passage is formed in the cover of the engine. Heat transfers from the lubricant of the engine to the water of the water pump during operation of the pressure washer system.

Abstract: A pressure washer system includes an engine block, a water conduit, a water pump, and a spray gun. The engine block is for a horizontally-shafted internal combustion engine, and has a chamber therein. The chamber is designed to contain oil for cooling and lubricating the internal combustion engine. The water conduit has a garden hose connector on an end thereof, and is fastened to the engine block. As such, heat transfers from the engine block to a flow of water passing through the water conduit during operation of the internal combustion engine. The water pump is coupled to the water conduit, where the flow of water is driven by the water pump. The spray gun is coupled to the water pump, where the flow of water exits the pressure washer system via the spray gun.

Abstract: An engine mounting system for power equipment includes a tubular frame, an internal combustion engine, and one or more supports for mounting the engine to the tubular frame. The internal combustion engine includes an engine block and a crankcase cover attached to the engine block. The one or more supports are integrally cast with and extend away from at least one of the engine block and the crankcase cover. Additionally, the one or more supports are designed to be mounted to the frame and are contoured to match a portion of a profile of the frame.

Abstract: A pressure washer system includes an engine block, a water conduit, a water pump, and a spray gun. The engine block is for a horizontally-shafted internal combustion engine, and has a chamber therein. The chamber is designed to contain oil for cooling and lubricating the internal combustion engine. The water conduit has a garden hose connector on an end thereof, and is fastened to the engine block. As such, heat transfers from the engine block to a flow of water passing through the water conduit during operation of the internal combustion engine. The water pump is coupled to the water conduit, where the flow of water is driven by the water pump. The spray gun is coupled to the water pump, where the flow of water exits the pressure washer system via the spray gun.

Abstract: A pressure washer system includes an internal combustion engine and a water pump. The internal combustion engine includes an engine block forming a chamber and a cover for the chamber. The cover has an area designed to hold a lubricant. Additionally, the engine includes a crankshaft within the chamber. The water pump includes a pumping mechanism, an inlet, an outlet, and a fluid passage. The pumping mechanism is powered by the crankshaft. Water enters the pump through the inlet and exits the pump through the outlet. The fluid passage extends between the inlet and the outlet. A portion of the fluid passage is formed in the cover of the engine. Heat transfers from the lubricant of the engine to the water of the water pump during operation of the pressure washer system.

Abstract: An engine counterbalancing system has a counterbalance weight that reciprocates in a linear manner in opposition to piston movement. The counterbalance weight is preferably coupled to the crankshaft via two spaced link arms that engage two respective eccentrics of the crankshaft. The counterbalance weight is guided by one or more rails that are formed integrally on the inner surface of the crankcase housing.