Patent ID: 8235674
Filing Date: 2012-08-07
Classification: F04B

Abstract:
1. A control system for controlling the output of a pneumatic pump fluidly connected to a paint line, comprising: a first regulator and a second regulator associated with the pneumatic pump, wherein the first regulator and second regulator are disposed between the pneumatic pump and a compressed air source at a position upstream from the pneumatic pump; a control valve adapted to connect the pneumatic pump to the compressed air source via one of the first regulator and second regulator so as to supply pressurized air to the pneumatic pump, the control valve further adapted to switch the connection of the pneumatic pump to the compressed air source between being through the first regulator and being through the second regulator such that the pneumatic pump is connected to the compressed air source via only one of the first regulator and the second regulator at any one time; and a main switch operably connected to the control valve and adapted to actuate the control valve to switch between connecting the pneumatic pump to the compressed air source via the first regulator and connecting the pneumatic pump to the compressed air source via the second regulator, wherein the first regulator is adapted to supply pressurized air to the pneumatic pump at a first air pressure which generates a first pneumatic pump output, the second regulator is adapted to supply pressurized air to the pneumatic pump at a second air pressure which generates a second pneumatic pump output, and the first air pressure is greater than the second air pressure and the first pneumatic pump output is greater than the second pneumatic pump output.