1. A compact pump/air separator comprising: a housing means having interior wall defining first, second and third internal cavities; said cavities being interconnected; said housing means further having inlet means in communication with said first cavity: pump means located in said first cavity; air separator means located in said first cavity and in communication with the outlet of the pump means, said air separator being of the tangential entry cyclone type including a scavenging tube located at the core of the separator wherein air and a small percentage of gasoline are collected, said scavenging tube being fixed to the wall separating the first and third cavities, said wall including an orifice communicating the interior of the tube to the third cavity; said air separator being operative to convey air and a small percentage of gasoline to said third cavity, with the remainder of the gasoline flowing from said air separator means to said second cavity; said third cavity including outlet means to discharge the collected air from the housing means and to return gasoline to the suction side of the pump; and said second cavity including a controlled outlet for discharging gasoline and a by-pass outlet in communication with said first cavity for recycling gasoline to said pump means when the controlled outlet is restricted.

1. A compact pump/air separator comprising: a housing means having interior wall defining first, second and third internal cavities; said cavities being interconnected; said housing means further having inlet means in communication with said first cavity: pump means located in said first cavity; air separator means located in said first cavity and in communication with the outlet of the pump means, said air separator being of the tangential entry cyclone type including a scavenging tube located at the core of the separator wherein air and a small percentage of gasoline are collected, said scavenging tube being fixed to the wall separating the first and third cavities, said wall including an orifice communicating the interior of the tube to the third cavity; said air separator being operative to convey air and a small percentage of gasoline to said third cavity, with the remainder of the gasoline flowing from said air separator means to said second cavity; said third cavity including outlet means to discharge the collected air from the housing means and to return gasoline to the suction side of the pump; and said second cavity including a controlled outlet for discharging gasoline and a by-pass outlet in communication with said first cavity for recycling gasoline to said pump means when the controlled outlet is restricted.

5. A compact pump/air separator for pressurizing gasoline flow and separating air and vapor therefrom comprising: pump means in communication with a source of gasoline; an air separator of the tangential entry cyclone type in communication with the outlet of said pump means and operative to separate a small percentage of gasoline and air and vapor from pure gasoline; valve means located downstream of said air separator to either discharge the pure gasoline from the compact pump/air separator for dispensing or to return the pure gasoline to the inlet side of said pump means; and means for separating the air and vapor from the small percentage of gasoline, said means including a vent to discharge the air and vapor to the atmosphere and second valve means for returning the gasoline to the inlet side of said pump means.