Abstract: A vehicle includes an engine and a fuel system. The fuel system includes a fuel tank that stores liquefied petroleum (LP) fuel. The fuel tank includes a tank outlet port and a tank return port. The fuel distribution system supplies fuel from the fuel tank to the engine and returns unused fuel to the fuel tank. The fuel distribution system includes an engine supply line coupled to the tank outlet port, and a fuel rail disposed on the engine and coupled to the engine supply line. The fuel system includes a fuel discharge valve disposed on the fuel distribution system for removing fuel from the fuel distribution system.

Abstract: A heater is disclosed that is installed in a window opening in a room for heating the room. The heater has a cabinet having an inner and an outer cabinet with an air gap therebetween, with a heating chamber in the inner cabinet. A burner is provided that is located on an outside wall of the heater. The burner has an inlet and an outlet with a combustion nozzle therebetween, with the burner outlet in communication with a respective serpentine heat exchange tube within said heating chamber where the heat exchange tube receives the hot products of combustion from its burner and discharges the products of combustion to the atmosphere. The heater has a blower that draws air from within the room and forces the air over and around the heat exchange tube(s) within the heating chamber discharges the heated air back into the room.

Abstract: A system for transferring LP gas includes an inlet port configured for connection to a single connection port of a first tank. The inlet port is configured to receive liquid phase LP gas, vapor phase LP gas, or a combination of both from the first tank. An outlet port is configured for connection to a single connection port of a second tank. The outlet port is configured to deliver the liquid phase LP gas, vapor phase LP gas, or combination of both to the second tank. A pump coupled between the inlet port via a first conduit and the outlet port via a second conduit is operable to pump the liquid phase LP gas, vapor phase LP gas, or combination of both from the first tank via the inlet port to the second tank via the outlet port through the first and second conduits.

Abstract: A vehicle has a fuel system that includes a controller that determines when the vehicle is in a refuel mode or a run mode based on a connection of a refuel nozzle to a vehicle connection of the vehicle. The controller controls a fuel pump input selector, a vehicle fuel pump, and a fill/run fuel selector such that fuel is pumped from a storage tank external to the vehicle into a vehicle fuel tank by way of the vehicle fuel pump in the refuel mode, and fuel is pumped to an engine of the vehicle from the vehicle fuel tank by way of the vehicle fuel pump in the run mode.

Abstract: A vehicle includes an engine and a fuel system. The fuel system includes a fuel tank that stores liquefied petroleum (LP) fuel. The fuel tank includes a tank outlet port and a tank return port. The fuel distribution system supplies fuel from the fuel tank to the engine and returns unused fuel to the fuel tank. The fuel distribution system includes an engine supply line coupled to the tank outlet port, and a fuel rail disposed on the engine and coupled to the engine supply line. The fuel system includes a fuel discharge valve disposed on the fuel distribution system for removing fuel from the fuel distribution system.

Abstract: A vehicle has a fuel system that includes a controller that determines when the vehicle is in a refuel mode or a run mode based on a connection of a refuel nozzle to a vehicle connection of the vehicle. The controller controls a fuel pump input selector, a vehicle fuel pump, and a fill/run fuel selector such that fuel is pumped from a storage tank external to the vehicle into a vehicle fuel tank by way of the vehicle fuel pump in the refuel mode, and fuel is pumped to an engine of the vehicle from the vehicle fuel tank by way of the vehicle fuel pump in the run mode.

Abstract: A vehicle has a fuel system that includes a controller that determines when the vehicle is in a refuel mode or a run mode based on a connection of a refuel nozzle to a vehicle connection of the vehicle. The controller controls a fuel pump input selector, a vehicle fuel pump, and a fill/run fuel selector such that fuel is pumped from a storage tank external to the vehicle into a vehicle fuel tank by way of the vehicle fuel pump in the refuel mode, and fuel is pumped to an engine of the vehicle from the vehicle fuel tank by way of the vehicle fuel pump in the run mode.

Abstract: A system for transferring LP gas includes an inlet port configured for connection to a single connection port of a first tank. The inlet port is configured to receive liquid phase LP gas, vapor phase LP gas, or a combination of both from the first tank. An outlet port is configured for connection to a single connection port of a second tank. The outlet port is configured to deliver the liquid phase LP gas, vapor phase LP gas, or combination of both to the second tank. A pump coupled between the inlet port via a first conduit and the outlet port via a second conduit is operable to pump the liquid phase LP gas, vapor phase LP gas, or combination of both from the first tank via the inlet port to the second tank via the outlet port through the first and second conduits.

Abstract: An LP gas evacuation system for evacuating LP gas from a vehicle fuel tank includes an inlet port for connection to an excess flow valve associated with the vehicle fuel tank to receive LP gas from the vehicle fuel tank, an outlet port for connection to a storage tank, and a pump coupled between the inlet port and the outlet port. The pump is operable to pump the LP gas from the vehicle fuel tank via the inlet port to the storage tank via the outlet port. The pump is a pneumatically driven displacement pump that can effectively pump both liquid phase LP gas and gas phase LP gas. The pump has seals formed from a material substantially resistant to degradation by contact with the LP gas. The LP gas evacuation system further includes a pneumatic pressure regulator configured to receive a supply of compressed air and to provide compressed air at a desired pressure to the pump.

Abstract: A vehicle has a fuel system that includes a controller that determines when the vehicle is in a refuel mode or a run mode based on a connection of a refuel nozzle to a vehicle connection of the vehicle. The controller controls a fuel pump input selector, a vehicle fuel pump, and a fill/run fuel selector such that fuel is pumped from a storage tank external to the vehicle into a vehicle fuel tank by way of the vehicle fuel pump in the refuel mode, and fuel is pumped to an engine of the vehicle from the vehicle fuel tank by way of the vehicle fuel pump in the run mode.

Abstract: An LP gas evacuation system for evacuating LP gas from a vehicle fuel tank includes an inlet port for connection to an excess flow valve associated with the vehicle fuel tank to receive LP gas from the vehicle fuel tank, an outlet port for connection to a storage tank, and a pump coupled between the inlet port and the outlet port. The pump is operable to pump the LP gas from the vehicle fuel tank via the inlet port to the storage tank via the outlet port. The pump is a pneumatically driven displacement pump that can effectively pump both liquid phase LP gas and gas phase LP gas. The pump has seals formed from a material substantially resistant to degradation by contact with the LP gas. The LP gas evacuation system further includes a pneumatic pressure regulator configured to receive a supply of compressed air and to provide compressed air at a desired pressure to the pump.