Abstract: An auxiliary power unit system for mobile service vehicles is provided that can provide DC power to DC-powered equipment. The system attaches to the power take-off port of the transmission and can provide power to the DC-powered equipment without idling the engine of the mobile service vehicle, thereby reducing fossil fuel consumption and engine exhaust emissions.

Abstract: A system and method is provided for converting wellhead pressure of natural gas wells, or for converting water head pressure of water towers, to rotational power for operating rotated equipment, such as electrical generators, electrical alternators, pumps, air compressors, and other rotated equipment.

Abstract: A motor vehicle-mounted system for controlling an air compressor or hydraulic fluid pump is provided. The system can alternatively include a battery box or an engine-driven welder configured for supplying DC power to an electric motor via an electric motor controller. The electric motor can operate an air compressor, which can further include an air tank for storing compressed air. The electric motor can also operate a hydraulic fluid pump for operating a pressurized hydraulic fluid system.

Abstract: An auxiliary power unit system for mobile service vehicles is provided that can provide DC power to DC-powered equipment. The system attaches to the power take-off port of the transmission and can provide power to the DC-powered equipment without idling the engine of the mobile service vehicle, thereby reducing fossil fuel consumption and engine exhaust emissions.

Abstract: An apparatus and method is provided for deflating an air-pressurized tire used on heavy machinery or mining equipment. The apparatus can include a venturi tube having a feed tube with one end terminated in the constricted throat of the venturi tube and the other end operatively connected to an exit port of a valve extraction tool connected to a valve stem disposed on the tire's rim. A stream of air can be passed through the throat of the venturi tube to create a region of pressure lower than atmospheric pressure. When the extraction tool removes the valve core of the valve stem, pressurized air in the tire can flow to the low-pressure region in the venturi tube thereby resulting in decreased time to deflate the tire.

Abstract: A self-contained automotive battery booster system for boosting depleted automotive batteries when no external power source is available is provided, the self-contained automotive battery booster system having an integral power source; means for connecting the self-contained automotive battery booster system to an automotive battery; circuitry to ensure the safety of the user, the self-contained automotive battery booster system and the depleted automotive battery; and circuitry to allow the user to control the flow of electricity from the integral power source to the depleted automotive battery. The circuitry to ensure the safety of the user, the self-contained automotive battery booster system and the depleted automotive battery can include various warning indicators such as horns and LEDs and can prevent the activation of the self-contained automotive battery booster system in certain situations.

Abstract: An apparatus and method is provided for deflating an air-pressurized tire used on heavy machinery or mining equipment. The apparatus can include a venturi tube having a feed tube with one end terminated in the constricted throat of the venturi tube and the other end operatively connected to an exit port of a valve extraction tool connected to a valve stem disposed on the tire's rim. A stream of air can be passed through the throat of the venturi tube to create a region of pressure lower than atmospheric pressure. When the extraction tool removes the valve core of the valve stem, pressurized air in the tire can flow to the low-pressure region in the venturi tube thereby resulting in decreased time to deflate the tire.

Abstract: A system and method is provided for converting wellhead pressure of natural gas wells, or for converting water head pressure of water towers, to rotational power for operating rotated equipment, such as electrical generators, electrical alternators, pumps, air compressors, and other rotated equipment.

Abstract: A motor vehicle-mounted system for controlling an air compressor or hydraulic fluid pump is provided. The system can alternatively include a battery box or an engine-driven welder configured for supplying DC power to an electric motor via an electric motor controller. The electric motor can operate an air compressor, which can further include an air tank for storing compressed air. The electric motor can also operate a hydraulic fluid pump for operating a pressurized hydraulic fluid system.

Abstract: A self-contained automotive battery booster system for boosting depleted automotive batteries when no external power source is available is provided, the self-contained automotive battery booster system having an integral power source; means for connecting the self-contained automotive battery booster system to an automotive battery; circuitry to ensure the safety of the user, the self-contained automotive battery booster system and the depleted automotive battery; and circuitry to allow the user to control the flow of electricity from the integral power source to the depleted automotive battery. The circuitry to ensure the safety of the user, the self-contained automotive battery booster system and the depleted automotive battery can include various warning indicators such as horns and LEDs and can prevent the activation of the self-contained automotive battery booster system in certain situations.

Abstract: A system is provided for a product pump drive for pumping fluids or substances into or out of a tanker-trailer towed by a tractor, the system including an auxiliary diesel engine mounted on the tractor, the engine operating a hydraulic pump used to operate a hydraulic motor operatively coupled to a product pump. The system can further include a high-pressure shutdown mechanism to shut down the engine if the pressure of the hydraulic fluid pumped by the hydraulic pump exceeds a high-pressure threshold. The system can also include an air conditioning unit and/or an electrical generator operatively coupled to the auxiliary diesel engine.

Abstract: A combination power plant/fluid compressor is provided for service vehicles. A small displacement internal combustion engine can be used to drive a fluid compressor, both mounted on a platform that can be mounted on the vehicle. A coupler is used to directly couple power from a pulley mounted on the crankshaft of the engine to the fluid compressor. The engine can operate on fuel from the fuel tank on the vehicle. The engine can be water-cooled and be configured to circulate heated coolant to the engine cooling system on the vehicle. In another embodiment, the engine can be operatively coupled to a stand-alone air conditioning system. In a further embodiment, the engine can be operatively coupled to a stand-alone electrical charging system.