An oil cooling system for an aircraft engine, a bypass valve and an associate method of cooling aircraft engine oil are provided. The oil cooling system includes a heat exchanger having an inlet and an outlet. The inlet is in fluid communication with a first oil conduit to receive a first oil flow from the first oil conduit. The heat exchanger facilitates heat transfer from the first oil flow to another fluid. A flow restrictor defining a constriction is operatively disposed to restrict the first oil flow through the heat exchanger. A second oil conduit receives the first oil flow from the heat exchanger. A bypass oil passage provides fluid communication between the first oil conduit and the second oil conduit to allow a second oil flow received from the first oil conduit to flow to the second oil conduit and bypass the heat exchanger.

The present invention provides a transmission mechanism that can efficiently lubricate a rotating member with a small amount of a lubricant. The transmission mechanism, which includes a housing, and a first rotating member accommodated in the housing and rotatable about a first rotating member axis, further includes a lubricating member accommodated in the housing and containing a lubricant, wherein while the first rotating member rotates about the lubricating member, the lubricating member applies a preload to and comes into contact with the first rotating member on the basis of an elastic force, so that a part of the first rotating member is lubricated with the lubricant.

The present invention provides a transmission mechanism with which a deterioration in accuracy can be suppressed and a service life can be increased by suppressing lubricant deterioration. A transmission mechanism is provided with a housing, a first rotating member which is accommodated in the housing and which is capable of rotating about a first rotating member axis, and a lubricant which is accommodated in the housing to lubricate the first rotating member, wherein: the transmission mechanism is additionally provided with a first filter member which is accommodated in the housing to filter out dust contained in the lubricant; the lubricant is agitated by means of the rotation of the first rotating member about the first rotating member axis; and the first filter member is provided in the direction in which the lubricant is caused to flow by means of the agitation from the first rotating member.

Systems and methods for supplying lubricating oil to a high-pressure fuel pump of an engine fuel system. In one embodiment, a system may include a plurality of channels routing lubricating oil to a gear system and drive shaft of a pump without flowing an entire volume of the lubricating oil through a cavity of the drive shaft.

The lubrication system includes a hydraulic cylinder pump which receives oil from the pile driver gearbox and an actuating mechanism connected to the pump to move oil therein through an exit line to a spray mechanism in the gearbox housing, providing lubrication to the gearbox bearings before the gearbox elements begin to operate.

An oil cooling system for an aircraft engine, a bypass valve and an associate method of cooling aircraft engine oil are provided. The oil cooling system includes a heat exchanger having an inlet and an outlet. The inlet is in fluid communication with a first oil conduit to receive a first oil flow from the first oil conduit. The heat exchanger facilitates heat transfer from the first oil flow to another fluid. A flow restrictor defining a constriction is operatively disposed to restrict the first oil flow through the heat exchanger. A second oil conduit receives the first oil flow from the heat exchanger. A bypass oil passage provides fluid communication between the first oil conduit and the second oil conduit to allow a second oil flow received from the first oil conduit to flow to the second oil conduit and bypass the heat exchanger.

Horology component intended to cooperate via a lubricated contact with at least one second horology component within a horology movement, said horology component comprising at least two distinct contact surfaces intended to cooperate with the same second horology component, characterized in that said two contact surfaces are offset with respect to one another, such that a first contact surface is adapted to displace a lubricant present on the second horology component towards a surface with which the second contact surface will subsequently come into contact.

A vehicle driveline component with a housing, a rotary power transmission system, a lubricant and a lubrication de-aerator. The housing defines a cavity and a sump. The rotary power transmission system is received in the cavity and includes a plurality of gears that are in meshing engagement. The lubricant is received in the sump and is employed to lubricate the rotary power transmission system. The lubrication de-aerator is received in the housing and has at least one matrix of de-aeration cells that extend between an upper surface and a lower surface. Each of the de-aeration cells has a cell inlet, which is formed through the upper surface, and a cell outlet that is formed through the lower surface. Each of the de-aeration cells tapers between its cell inlet and its cell outlet.

A lubricating device of a power transmitting system having a structural member. The lubricating device includes an oil piping assembly fixed to the structural member at a plurality of positions and having an oil passage through which a lubricant oil flows. The oil piping assembly is a resin piping assembly including a plurality of divisional components which cooperate to define a circumference of the oil passage along a length of the oil passage and which are formed of a resin material. The divisional components have respective interfacial surfaces and are bonded together with interfacial surfaces thereof being held in contact with each other. The divisional components of the resin piping assembly include a base divisional component provided with a plurality of fixing portions, and the resin piping assembly is fixed to the structural member at the plurality of positions through only the fixing portions.

A device includes a first member having a first surface, and a second member having a second surface that is partially or wholly in contact with the first surface. The first member and the second member are configured to operate relatively. The first member has a flow path of a lubricant that has an opening provided in the first surface.