An engine component for a gas turbine engine may include a radial channel and an axial channel disposed in the engine component. The radial channel may be configured to direct a cooling air in a radial direction. The axial channel may be configured to direct the cooling air in a direction substantially perpendicular to the radial direction. A cross-section area of the axial channel is greater than a cross-section area of the radial channel, such that the radial channel remains the metering channel, independent of the relative location due to radial movement of the engine component with respect to an adjacent engine component.

A brush seal system includes a component including a first mating surface. The brush seal system further includes a brush seal including a brush seal backing plate, a retaining ring, and a plurality of bristles retained between the brush seal backing plate and the retaining ring. The brush seal backing plate includes a second mating surface mounted to the first mating surface. The brush seal system further includes at least one cooling channel extending from an exterior side of the component to an interior side of the component so as to bypass the brush seal.

A seal assembly includes a carbon seal that has a sealing surface. A seal seat has a sealing surface and is positioned for rotation relative to the carbon seal. A diamond-like carbon coating at least partially forms the sealing surface on the seal seat.

A rotating seal rotatable about a rotational axis is provided. The rotating seal includes a body having a first surface disposable to face the rotational axis and a second surface disposable to contact with a stationary element. The body defines a cooling channel including one or more entrance channels respectively extending from the first surface, one or more exit channels and a plenum. The plenum extends circumferentially through the body and has a hot side adjacent to the second surface. The plenum is fluidly interposed between the one or more entrance channels and the one or more exit channels whereby fluid exiting the one or more entrance channels and entering the plenum impinges against the hot side.

A seal element for an annular control device includes an elastomer seal sleeve having an annular opening therein and arranged to be radially compressed to contact an exterior of a pipe disposed within the elastomer seal element. The elastomer seal sleeve comprises at least one of a wear resistant material disposed on an interior surface of the annular opening and a lubricant channel on the interior surface.

An air seal may comprise an annular ring defined by at least a proximal surface, a distal surface, an aft side and a forward side. A channel may be disposed in the forward side of the air seal and/or the aft side of the air seal and may extend between the proximal surface and the distal surface. An additional channel extending from at least one of the forward side or the aft side may be disposed in the distal surface. The channel and the additional channel may be circumferentially in line. The channels may define a flow path for direction cooling air from a proximal side of the air seal to a distal side of the air seal. The radial channel may interface with the axial channel at an edge of the air seal.

A housing for a magnetic fluid sealing device and an agitation kettle/reaction kettle are disclosed. The housing includes: a first end cover, a casing and an elastic member. The first end cover is spaced apart from a first portion of the casing in radially inward and outward directions of the casing. At least one of the casing, a positioning platform and the first end cover is provided with a mounting groove, and the elastic member is arranged in the mounting groove. A first sealing ring is provided between the casing and the first end cover.

This disclosure relates to a method for improving air release in a lubricating oil. The method involves formulating a composition having at least one lubricating oil base stock as a major component, and one or more lubricating oil additives, as a minor component. The one or more lubricating oil additives include at least one polyalkylene glycol. The at least one polyalkylene glycol is soluble in the at least one lubricating oil base stock. The weight ratio of the at least one polyalkylene glycol to the at least one lubricating oil base stock is from about 1:99 to about 7:93. During operation of a lubricating system containing the lubricating oil, release of entrained air in the lubricating oil is improved, as determined by ASTM D-3427-15, as compared to release of entrained air achieved using a lubricating oil containing other than the at least one polyalkylene glycol. This disclosure also relates to lubricating oils having at least one oil soluble polyalkylene glycol (OSP).

This disclosure relates to a method for controlling lubrication of a rotary shaft seal. The method involves providing an apparatus having a bulk lubricating oil reservoir, a rotary shaft that passes through the bulk lubricating oil reservoir, and a rotary shaft seal. The rotary shaft seal has a sealing edge in proximity with the rotary shaft creating a contact zone. The contact zone has a film of lubricating oil. The method also involves increasing the rate of heat flow along the rotary shaft to reduce temperature of the film of lubricating oil in the contact zone. Increasing the rate of heat flow along the rotary shaft is accomplished by using rotary shaft materials of construction having sufficient high thermal conductivity, rotary shaft coatings having sufficient high thermal conductivities, or increasing the surface area of the rotary shaft. This disclosure also relates to a method for controlling heat transfer in a contact zone, and a method for improving performance of an apparatus.

A magnetic liquid sealing device (100) with a heat conductive rod and a heat dissipating jacket includes: a shaft casing (1), a rotating shaft (2), two bearings (3), two pole shoes (4), a permanent magnet (5), a heat conductive rod (6) and a heat dissipating jacket (7). The rotating shaft (2) is rotatably arranged in the shaft casing (1), two bearings (3) and two pole shoes (4) are fitted over the rotating shaft (2), and the two pole shoes (4) are located between the two bearings (3). The permanent magnet (5) is fitted over the rotating shaft (2) and is located between the two pole shoes (4). The heat conductive rod (6) is inserted in the pole shoe (4), the heat dissipating jacket (7) is fitted over the shaft casing (2), and the heat conductive rod (6) is connected with the heat dissipating jacket (7) through a connecting member (11).