Abstract:
A lubrication system vent valve includes a valve body having a flow passage with an inlet fluidly coupled with a supply and an outlet fluidly coupled with a dispenser, and a vent passage with an inlet port fluidly coupled with the flow passage and an outlet port. A closure element disposed within the vent passage has a threaded portion and is linearly displaceable between an open position where the vent ports are fluidly coupled to permit lubricant flow from the primary passage and out of the body through the vent outlet port, and a closed position at which fluid flow between the vent ports is substantially prevented. A motor has a shaft with a threaded portion engaged with the closure element such that shaft rotation in one direction displaces the closure element toward the closed position and shaft rotation in an opposing direction displaces the element toward the open position.
Abstract:
A lubrication system for lubricating at least one movable machine component includes a lubricant reservoir containing a lubricant and a fluid line fluidly coupled with the reservoir and having an outlet for dispensing the lubricant on or within the machine component. A valve selectively permits lubricant flow through the fluid line so as to dispense a quantity of lubricant through the fluid line outlet. A sensor senses a property of the machine component or the quantity of lubricant. A control is coupled with the sensor and with the valve, the control being configured to receive information from the sensor, to determine an estimated period of effectiveness of the quantity of lubricant using the sensor information, and to operate the valve based on the estimated lubricant effectiveness period so as to dispense another quantity of lubricant on or within the machine component.
Abstract:
A method of operating a lubrication system for lubricating a bearing in a housing includes the following steps: dispensing a quantity of lubricant within the bearing housing; monitoring a containment period of time during which the lubricant quantity is contained within the housing; determining when the containment time period exceeds a predetermined value of time; and dispensing another quantity of lubricant within the bearing housing when the containment time period exceeds the predetermined time value such that the other quantity of lubricant displaces the quantity of lubricant from the bearing housing.
Abstract:
A lubrication system includes a lubricant supply reservoir, a supply line connecting the reservoir with one or more dispenser valves, a return valve and a pump. A control is operatively connected with a pump and with the return valve, the control being configured to operate the pump and the return valve such that a quantity of lubricant within the supply line flows out of the supply line and into the reservoir when a period of storage within the supply line of the quantity of lubricant exceeds an estimated period of effectiveness of the quantity of lubricant or a predetermined portion of the estimated lubricant effectiveness period.
Abstract:
A flow measuring device includes a housing having an inlet, an outlet and a passage extending between the inlet and outlet, a shaft disposed within the housing and rotatable about a central axis and a flow detector mounted on the shaft and disposed partially within the passage, such that fluid flow through the passage rotates the detector about the axis. A magnet is mounted on the shaft and spaced axially from the detector and a sensor disposed within the housing and configured to sense rotation of the magnet as the shaft angularly displaces about the central axis so as to detect angular displacement of the flow detector. Preferably, the sensor includes a switch adjustable from open and closed states when either one of the poles of the magnet is proximal to the switch. A processor is connected with the switch and determines flow volume and/or flow rate through the passage.