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RAMP-UP OPTIMIZING VACUUM SYSTEM

  • US 20150139817A1
  • Filed: 08/19/2014
  • Published: 05/21/2015
  • Est. Priority Date: 11/19/2013
  • Status: Abandoned Application
First Claim
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1. A ramp-up optimizing vacuum system comprising:

  • a blower having a gas inlet and a gas outlet,a vacuum pump with a gas inlet and a as outlet, a gas line connecting said blower outlet to said vacuum pump inlet;

    a blower motor connected to said blower to rotate a rotor of said blower;

    a first sensor;

    a second sensor;

    a motor controller connected with said blower motor, said first sensor and said second sensor; and

    said motor controller operable to ramp-up said blower from a blower speed of from zero to an operating blower speed at a predetermined ramp-up rate at start-up;

    wherein during a ramp-up of said blower from the blower speed of zero to the predetermined operating blower speed, said motor controller at a plurality of predetermined intervals, based on information from the first sensor, determines a measured blower speed measured blower speed, and based on information from the second sensor determines a measured current draw, and compares the measured current draw to a predetermined maximum current draw value which corresponds to the measured blower speed, andwherein the motor controller allows either(1) the continued ramp-up of said blower speed to said operating blower speed at said predetermined ramp-up rate if said measured current draw is less than said maximum current draw value for the measured blower speed, or(2) if said measured current draw exceeds said maximum current draw value for said measured blower speed, said motor controller stops said ramp-up without a signal being sent to operate said blower at a blower speed less than said measured speed, said blower allowed to operate at said measured speed.

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