Patent ID: 8087902
Filing Date: 2012-01-03
Classification: F04B,F16N

Abstract:
1. A hydraulic device with a supply line for pressurized hydraulic fluid and with a lubricating pump that is connected to the supply line in a fluidic fashion, said lubricating pump comprising a hydraulic inlet, a pump element for conveying a lubricant from a reservoir to at least one lubricating point of the hydraulic device, and means for producing a pump stroke of the pump element, characterized in that said means for producing a pump stroke comprises a base body, a piston unit movable in the base body, and reversing means for reversing the direction of movement of at least one element of the piston unit, said reversing means comprising at least one bypass formed by at least one recess, and at least one elastic element acting upon the piston unit in a first direction oriented toward the hydraulic inlet whereby the piston unit can be displaced in the base body in an oscillating fashion between a closed position in which a fluid connection between the hydraulic inlet and the hydraulic outlet is blocked, and an open position in which said fluid connection is unblocked in order to produce said pump stroke of the pump element, said reversing means comprising a first bypass and a second bypass that are spaced apart from one another.