An automotive driveline unit housing can be that of a power transfer unit (PTU), a final drive unit (FDU), or a rear drive unit (RDU). The automotive driveline unit housing has a lubricant feed passage spanning from an inlet to an outlet. The outlet can be situated near a seal of the automotive driveline unit, near a bearing of the unit, near both the seal and bearing, or near another component. The lubricant feed passage can have a flow restrictor located near its outlet. When the unit is in a connected state, lubricant is received in the lubricant feed passage via a spinning gear of the unit. The received lubricant trickles through the flow restrictor. And when the unit is in a disconnected state, lubricant continues to trickle through the flow restrictor, even though lubricant may no longer be received in the lubricant feed passage via the gear.

A lubrication system for a gas turbine engine includes a tank, a circulation pump, and a heat exchanger. The circulation pump generates a flow of lubricant from the tank to, e.g., a power gear box of the gas turbine engine and the heat exchanger removes an amount of heat from such flow of lubricant provided to the power gear box. The lubrication system also includes one or more valves in the flow of lubricant for controlling a flowrate and/or temperature of the lubricant provided to, e.g., the power gear box to increase an efficiency and/or durability of the power gear box.

A lubricant injector includes a housing and a metering section attached to the housing. The housing includes a body and a metering cylinder extending from the body. The metering section includes a diaphragm disposed within the metering cylinder. The diaphragm forms a static seal between the metering cylinder and a lubricant pathway that extends through the body, and the diaphragm defines a metering chamber for measuring a volume of lubricant to be applied during a lubrication cycle. A retaining member secures the diaphragm within the metering cylinder.

A lubricant injector includes a housing and a metering section attached to the housing. The housing includes a body and a metering cylinder extending from the body. The metering section includes a diaphragm disposed within the metering cylinder. The diaphragm forms a static seal between the metering cylinder and a lubricant pathway that extends through the body, and the diaphragm defines a metering chamber for measuring a volume of lubricant to be applied during a lubrication cycle. A retaining member secures the diaphragm within the metering cylinder.

A system for distributing semisolid lubricant, including a semisolid lubricant tank and a high pressure pumping system that intermittently feeds, during a lubrication cycle, at least one first duct, the at least one first duct feeding a plurality of distributors adapted to sort the semisolid lubricant to a plurality of users; a controlled suction/delivery device, fluidly associated with the first duct, for controlled suction/delivery of a part of the semisolid lubricant conveyed by the first duct. The controlled suction/delivery device configured to suck a volume of semisolid lubricant from the first duct during a step of inactivity of the pumping system on the first duct, and to introduce the previously suctioned semisolid lubricant in the first duct during a step of activity of the pumping system on the first duct.

A microlubrication system for a machining unit with a rotating spindle, the system having a rotary feedthrough via which compressed air and lubricant can be fed to the rotating spindle to combine them in a mixing chamber close to a tool, and a metering valve by means of which the amount of the fed lubricant can be dosed. In order to improve the monitoring and the control of the system, the rotary feedthrough and/or the metering valve are designed as smart components.

A microlubrication system for a machining unit with a rotating spindle, the system having a rotary feedthrough via which compressed air and lubricant can be fed to the rotating spindle to combine them in a mixing chamber close to a tool, and a metering valve by means of which the amount of the fed lubricant can be dosed. In order to improve the monitoring and the control of the system, the rotary feedthrough and/or the metering valve are designed as smart components.

A plug for restricting a flow of fluid within a passageway having an interior surface with a predetermined inner diameter is provided. The plug includes a plate member having an outer edge and a rim bounding the outer edge of the plate member. The rim extends generally normal from the plate member. The rim has a contact portion and an indented portion. The contact portion contacts the interior surface of the passageway to retain the position of the plug within the passageway. The indented portion is spaced apart from the interior surface on the passageway to allow fluid to bypass the plug when the plug is located within the passageway.

A lubrication system for a gas turbine engine includes a tank, a circulation pump, and a heat exchanger. The circulation pump generates a flow of lubricant from the tank to, e.g., a power gear box of the gas turbine engine and the heat exchanger removes an amount of heat from such flow of lubricant provided to the power gear box. The lubrication system also includes one or more valves in the flow of lubricant for controlling a flowrate and/or temperature of the lubricant provided to, e.g., the power gear box to increase an efficiency and/or durability of the power gear box.

An insertion amount grasping device includes: a first jig fixed to a fixation target in a state where the first jig is positioned against the fixation target, the first jig having a guide through-hole extending toward an application portion in a state where the first jig is fixed to the fixation target; an insertion portion inserted into the guide through-hole such that the insertion portion is introduced toward the application portion in a state where an operator grips the insertion portion; and a protruding portion as a protruding portion provided in the insertion portion, the protruding portion inserted into the guide through-hole and cause friction between the protruding portion and the guide through-hole when a predetermined positional relationship is established between a distal end part of the insertion portion and the application portion along with an introduction operation to introduce the insertion portion toward the application portion.