A minimal lubrication device including a lubricating fluid storing tank, conduit for supplying the lubricant pressurized to at least one modular element. The at least one modular element including a lubricating fluid conduit intercepted by flow regulator and compressed air conduit, such conduits fluidically connected to air and lubricant mixing element. The flow regulator including a shutter that can be at least partially housed in calibrated hole and movable between upper and lower stroke position ends. The calibrated hole in fluid communication, on one side, with pressurized lubricant delivery and, on the other side, with the mixing element. The shutter having at least one conical profile portion insertable in the calibrated hole. The conical profile portion has a surface groove facing a surface defining the calibrated hole at least when the shutter is in an intermediate position between the lower and upper stroke position ends.

A method includes providing a bearing housing configured to house a bearing, the bearing housing enclosing a free volume for receiving a lubricant and including a shaft in a shaft opening, filling the free volume with the lubricant, providing an exclusion seal between the shaft opening and the shaft, the exclusion seal being repeatably and non-destructively shiftable from a sealing state and a release state, the exclusion seal being shiftable from the sealing state to the release state by increasing a pressure in the bearing housing to above a first level and being shiftable from the release state to the sealing state by decreasing the pressure to below the first level; and continuously maintaining a film of the lubricant between the exclusion seal and the shaft by repeatedly causing the pressure of the lubricant in the free volume to rise above and fall below the first level.

An oil supply system of a vehicle includes: a first pump generating a first quantity of oil to cool a driving motor of a hybrid vehicle; a second pump generating a second quantity of oil to lubricate a friction lubrication element of the hybrid vehicle; a flow channel switching valve selectively switching a flow channel of the first quantity of oil and a flow channel of the second quantity of oil to connect the flow channel of the first quantity of oil to the friction lubrication element or connect the flow channel of the second quantity of oil to the driving motor; and a controller controlling an operation of the flow channel switching valve to supply a portion of the first quantity of oil to the friction lubrication element or a portion of the second quantity of oil to the driving motor.

Grease distribution systems for lubricating a plurality of fracking valves on a wellhead include a distribution manifold configured for mounting on or adjacent to the wellhead, stand mount, mobile skid, grease skid or trailer. The distribution manifold includes a plurality of manifold valves configured for coupling in fluid communication with the fracking valves, respectively, on the wellhead. A grease pump is disposed in fluid communication with the distribution manifold. Methods of lubricating fracking valves on a wellhead are also disclosed.

A system for distributing high viscosity grease to at least one plug valve includes a replaceable cartridge with a body having a chamber and a piston disposed within the chamber. The piston defines a first space within the chamber for receiving solid grease and a second opposing space within the chamber for receiving fluid for driving the piston to compress the solid grease received within the first space. A manifold detachably couples to the replaceable cartridge and has a manifold chamber for receiving grease flowing under compression from an outlet of the cartridge and a plurality of valves in fluid communication with the manifold chamber for selectively distributing grease to corresponding grease ports of the at least one plug valve.

A transport system is a vacuum processing system that includes a transport device that is provided in a vacuum, and a lubricating agent supply device that supplies lubricating agent to the transport device and provided in the ambient atmosphere. The transport device has a lubricating agent flow channel that is a channel for grease injected to a site subject to lubrication. The lubricating agent supply device has a grease server that stores a lubricating agent in the ambient atmosphere, a lubricating agent supply pipe which is a channel that guides the grease stored in the grease server to the lubricating agent flow channel and that connects the grease server and the lubricating agent flow channel, and an exhaust pump that exhausts the inside of the lubricating agent supply pipe.

The current invention includes manifold having multiple outputs and at least one input for lubricant to be pumped at high pressure from a skid or trailer to a particular frac valve when the valve requires lubrication. Generally, such frac valves require lubrication on an hourly schedule or less. Each output port on the manifold is fitted with an on/off valve that allows remote operation such as pneumatic, hydraulic, electro-pneumatic operation, or other known remote operation system. The pump or pumps are also configured for remote operation. A controller is then provided so that each circuit allows, upon command, lubricant to be pumped from the lubricant reservoir, through the pump, to the manifold, through each remotely operable valve, via each output port, through an appropriate rated hose, then to the lubrication or other port on each frac valve. Generally, once connected each frac valve remains connected to the system to allow the operator to cause lubricant to flow to each valve upon command. The controller may also provide a safety cutout so that the system will only provide pressurized lubricant with the controller in the operator's possession while the operator continuously actuates the appropriate switch.

A device for supplying lubricant to a lubrication point in a machine, a tunnel boring machine, for example, includes a lubrication pump unit and a control unit. The lubrication pump unit is configured to supply a quantity of the lubricant to the lubrication point, and the control unit is configured to regulate the quantity of lubricant based on a sensor measurement signal. The sensor measurement signal may be based on a temperature measured in a region of the lubrication point, a pressure measured in a region of the lubrication point, a measured viscosity of the lubricant, a measured dielectricity of the lubricant, a measured water content of the lubricant, a vibration intensity measured at a part of the machine, or a measured rotational speed of a part of the machine.

A cooling and lubrication system for a motor vehicle drive unit includes a drive unit sump, a first mechanically-driven pump, a second mechanically-driven pump, and an oil/air separator reservoir, among other possible components. The drive unit sump holds drive unit fluid. The first mechanically-driven pump fluidly communicates with the drive unit sump, and the second mechanically-driven pump fluidly communicates with the drive unit sump. The oil/air separator reservoir resides downstream of the first mechanically-driven pump and resides downstream of the second mechanically-driven pump.

In a valve member, supply and discharge apertures of fluid are formed at a body having a fluid space E. A one electrode Da including a contact T is provided at an aperture edge of the supply aperture and/or a peripheral part of an aperture edge of the body. The body includes another electrode Db, and stores a valve member made of a conductor and opening and closing the supply aperture, and a coil spring made of a conductor and urges the valve member. A guide member made of a conductor is attached onto the valve member. The guide member is formed to secure a flow path of the fluid from the supply aperture to the discharge aperture while being slidable in the fluid space E, has a reception surface facing one end face of the fluid space E while receiving the fluid from the supply aperture.