Borgwarner Inc.

Ian D Worcester

Arie Alexiou

Hongtao Wang

Jason P Eldred

Gurmeet Singh Bedi

Branden Levi Reeves

Jeffrey Elder

Robert Martin Quinn

Robert W Green, Iii

A driveline power transmitting component having a power transfer assembly disposed in a housing. The housing defines a vent aperture and a sump. A lubricating fluid is disposed in the sump and portions of the power transfer assembly travel through the lubricating fluid so that a lubrication surge zone and a splash lubrication zone are formed. The vent aperture is disposed in at least one of the surge zone, the splash lubrication zone and the sump when the driveline power transmitting component is disposed in at least one orientation in a predetermined range of operating positions in which the driveline power transmitting component can be operated. A breather relocation conduit is employed to permit air to be vented from the housing to the vent aperture without intaking lubricating fluid into the breather relocation conduit.

Vehicle drivetrain component having an internal vent relocation tube for venting a housing of the vehicle drivetrain component

A vehicle driveline component having a housing, a shaft received in the housing, a lubricant pathway coupled to the shaft for rotation therewith, a sleeve disposed coaxially about the lubricant pathway, and a fluid feed conduit coupled to the component housing. The lubricant pathway is disposed helically about an exterior surface of the shaft. The sleeve has a feed port. The fluid feed conduit having an outlet that is in fluid communication with the feed port. Lubricant in the lubricant pathway that has been discharged from the outlet of the fluid feed conduit travels in a predetermined axial direction along the rotary axis of the shaft when the shaft rotates about the rotary axis in a predetermined rotational direction.

Vehicle driveline component having a lubricant pathway for transmitting a lubricating fluid to desired location

A driveline component that includes a shaft, a friction clutch, a lubricant passage and an oil distributor sleeve. The friction clutch includes a hub with a hub portion and a plate mount. The oil distributor sleeve is received on the plate mount so that a lubricant chamber is disposed radially between the oil distributor sleeve and the hub portion. The lubricant passage is disposed between the shaft and the lubricant chamber and has a passage outlet that intersects the lubricant chamber. The oil distribution sleeve receives lubrication discharged from the passage outlet and directs the received lubrication to apertures formed through the plate mount.

Driveline component having oil distributor sleeve

A lubrication system for a transfer case may include a sump. A drive chain may be in operable association with the sump. A snubber may be disposed in close proximity to the drive chain. The snubber may include a channel and a conduit in fluid communication with the channel.

Transfer case lubrication system with snubber

Vehicle driveline component having rotatable lubricant pathway for transmitting lubricating fluid to desired location

An active transfer case for a motor vehicle may comprise a clutch assembly configured to rotatably couple a primary output shaft to an input sprocket when engaged. The clutch assembly may include a clutch pack having a plurality of clutch plates, and a clutch hub having a clutch hub center defined between an inner ring and an outer ring. The outer ring of the clutch hub may have a hub aperture placing the clutch hub center in fluid communication with the clutch plates. The active transfer case may further comprise a retainer slidingly inserted in the clutch hub center between the inner ring and the outer ring. The retainer may include a retainer aperture that aligns with the hub aperture of the clutch hub when the clutch assembly is engaged to permit a flow of a lubricant fluid from the clutch hub center to the clutch plates.

Lubricant fluid storage and routing features for active transfer case with passive lubricant fluid system

A transfer case having a lubrication guide with an inlet, an outlet and an elongated tubular portion that is disposed between the inlet and the outlet. The lubrication guide is coupled to a drive assembly that transmits rotary power between a pair of output shafts such that the inlet is disposed proximate a first rotary component of the drive assembly to receive splash lubrication (i.e., slung lubrication and/or surge lubrication) therefrom.

Transfer case having a lubrication guide

A power transmitting device that includes a shaft, a friction clutch, a lubricant passage and an oil spout. The friction clutch defines a lubricant chamber. The lubricant passage is disposed between the shaft and the lubricant chamber and has a passage outlet that intersects the lubricant chamber. The oil spout is received in the lubricant chamber and extends along a longitudinal axis of the shaft such that the oil spout is disposed about the lubricant passage and a portion of a hub portion of the friction clutch. The oil spout diverges radially outwardly from the hub portion with increasing distance from the lubricant passage in a direction toward an outlet of the oil spout.

Power transmitting component having an oil spout for guiding lubrication

A transfer case having a chain drive disposed in a housing. The housing defines a vent aperture and a sump. A lubricating fluid is disposed in the sump and portions of the chain drive travel through the lubricating fluid so that a lubrication surge zone and a splash lubrication zone are formed. The vent aperture is disposed in at least one of the surge zone, the splash lubrication zone and the sump when the transfer case is disposed in at least one orientation in a predetermined range of operating positions in which the transfer case can be operated. A breather relocation conduit is employed to permit air to be vented from the housing to the vent aperture without intaking lubricating fluid into the breather relocation conduit.

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Royal Oak, MI, United States of America

Ian D Worcester