Door closer assembly

摘要

A door closer assembly is provided, including a valve regulating an amount of hydraulic fluid that flows through the valve. The amount of hydraulic fluid flowing through the valve controls a force generated by the door closer assembly on a door. A first sensor measures an angular position of the door, and a second sensor measures an angular position of the valve. The angular position of the valve determines the amount of hydraulic fluid flowing through the valve. A controller controls the adjustment of the valve based on the angular position of the door and the angular position of the valve.

主权项

1. A system for reduced energy operation of a door closer comprising:
a controller, the controller comprising a processor; a voltage storage device, the voltage storage device being operatively connected to the controller; and a generator, the generator being operatively connected to the controller and the voltage storage device, the generator generating a voltage responsive to movement of a door, the voltage charging the voltage storage device,wherein the controller enables power to a first sensor to read an angular position of the door only for enough time to insure an accurate reading the first sensor,wherein the controller enables power to a second sensor to read an angular position of a valve in the door closer only for enough time to insure an accurate reading the second sensor, andwherein the controller monitors a voltage level of the voltage storage device and initiates an orderly powering down of the processor when the voltage level of the voltage storage device falls below a defined level.