Patent ID: 8967092
Filing Date: 2015-03-03
Classification: F04D,Y02B

Abstract:
1. An inline motor reverser for automatically removing radiator debris on a motor vehicle that has an internal combustion engine, a radiator, a fan located behind the radiator for pulling cooling air through the radiator, an electric motor that turns the fan, and conductors for providing a voltage of forward polarity when energized, comprising: electrical inputs that receive the voltage from the conductors; electrical outputs that output voltage to the electric motor; and control circuitry operatively located between the electrical inputs and the electrical outputs, the control circuitry controlling the electrical outputs by: (1) outputting a forward polarity voltage on the electrical outputs during a cooling period to turn the electric motor and fan connected thereto in a forward cooling direction that pulls cooling air through the radiator; (2) disabling the electrical outputs during a post-cool off period to allow the electric motor and fan connected thereto to rotationally slow before reversing direction; (3) outputting a reverse polarity voltage on the electrical outputs during a cleaning period to turn the electric motor and fan connected thereto in a reverse cleaning direction that pushes air through the radiator and blows debris away from an exterior side of the radiator; and (4) disabling the electrical outputs during a post-clean power-off period to allow the electric motor and fan connected thereto to rotationally slow before reversing direction; wherein operations (1) to (4) are repeatedly performed by the control circuitry while the electrical inputs are receiving voltage from the conductors.