A lubrication system for a roller chain. The lubrication system provides a lubricant reservoir, at least one piston pump, and synchronization means. The synchronization means has engaging means dedicated to mechanically mesh with roller chain in motion, and actuating means fastened in motion with the synchronization means the actuating means being in constant mechanical cooperation with a piston pump.

A lubrication system for a roller chain. The lubrication system provides a lubricant reservoir, at least one piston pump, and synchronization means. The synchronization means has engaging means dedicated to mechanically mesh with roller chain in motion, and actuating means fastened in motion with the synchronization means the actuating means being in constant mechanical cooperation with a piston pump.

Lubrication module for at least one lubrication station of a turbomachine, the lubrication module comprising at least one positive displacement pump including a pump body delimiting a main chamber configured to be in fluid communication with a main lubrication circuit and an auxiliary chamber configured to be in fluid communication with an auxiliary lubrication circuit, and a piston movably mounted in the pump body between an inactive configuration and an active configuration, the piston being configured to perform, in the active configuration, a pumping movement between a top dead center and a bottom dead center by cooperation with a cam of a shaft of the turbomachine and, in the inactive configuration, not to cooperate with the cam of the shaft of the turbomachine, the positive displacement pump including a return element configured to return the piston to the active configuration.

A lubrication system for a main bearing positioned around a main shaft of a wind turbine includes a seal ring positioned around the shaft adjacent to the bearing, at least one gear adjacent to the seal ring, a mechanical lubricant pump arranged to engage the at least one gear, and at least one lubricant for providing lubrication to the bearing. Thus, as the shaft rotates, the gear(s) drives the lubricant pump such that the pump continuously provides the lubricant to the bearing so long as the shaft is rotating.

A lubrication system for a main bearing positioned around a main shaft of a wind turbine includes a seal ring positioned around the shaft adjacent to the bearing, at least one gear adjacent to the seal ring, a mechanical lubricant pump arranged to engage the at least one gear, and at least one lubricant for providing lubrication to the bearing. Thus, as the shaft rotates, the gear(s) drives the lubricant pump such that the pump continuously provides the lubricant to the bearing so long as the shaft is rotating.

A lubricant reservoir system includes a lubricant reservoir having an interior wall and an inlet for receiving lubricant from a supply. A follower device in the reservoir contacts the interior wall of the reservoir in a sliding and sealing manner, and the follower device is movable up and down in the reservoir from a first position to a second position in response to a changing lubricant level. A valve is in fluid communication with the inlet and is configured to selectively prevent a flow of the lubricant through the inlet. A connector operatively connects the follower device to the valve unit such that the flow of the lubricant through the inlet is prevented when the follower device is in the second position. The connector is configured such that the valve is positionable independently of the reservoir.

A lubricant reservoir system includes a lubricant reservoir having an interior wall and an inlet for receiving lubricant from a supply. A follower device in the reservoir contacts the interior wall of the reservoir in a sliding and sealing manner, and the follower device is movable up and down in the reservoir from a first position to a second position in response to a changing lubricant level. A valve is in fluid communication with the inlet and is configured to selectively prevent a flow of the lubricant through the inlet. A connector operatively connects the follower device to the valve unit such that the flow of the lubricant through the inlet is prevented when the follower device is in the second position. The connector is configured such that the valve is positionable independently of the reservoir.

A grease pumping device includes a pump body, a driving mechanism, a plunger pair, a reversing valve and a lever mechanism. A switching action between each valve position of a valve core of the reversing valve is driven by the lever mechanism. An output rotating shaft drives a toggle member rotating therewith, and when the output rotating shaft rotates reciprocally in forward and reverse directions, the toggle member toggles the lever mechanism in the forward and reverse directions, such that the lever mechanism swings reciprocally. At least one of the lever mechanism and the toggle member is an elastic structure, when the output rotating shaft rotates, the toggle member contacts the lever mechanism and drives the valve core to operate, when the valve core is switched to a corresponding valve position, the toggle member and the lever mechanism slide relatively by elastic deformation of the elastic structure.

A grease pumping device includes a pump body, a driving mechanism, a plunger pair, a reversing valve and a lever mechanism. A switching action between each valve position of a valve core of the reversing valve is driven by the lever mechanism. An output rotating shaft drives a toggle member rotating therewith, and when the output rotating shaft rotates reciprocally in forward and reverse directions, the toggle member toggles the lever mechanism in the forward and reverse directions, such that the lever mechanism swings reciprocally. At least one of the lever mechanism and the toggle member is an elastic structure, when the output rotating shaft rotates, the toggle member contacts the lever mechanism and drives the valve core to operate, when the valve core is switched to a corresponding valve position, the toggle member and the lever mechanism slide relatively by elastic deformation of the elastic structure.

An assembly unit as a structural component for a lubricant pump, the assembly unit having a base plate, at least one pump element housing fixedly attached to the base plate with a pump element powered by a linear motion inserted therein, and further having an eccentric fixing to enable assembling an eccentric arrangement provided with a circumferential eccentric in a fixed relative position to the pump element inserted into the pump element housing.