An epicyclic gear train for a turbine engine includes a gutter with an annular channel. A rotating structure includes a ring gear. The rotating structure has an aperture that is axially aligned with the annular channel. Axially spaced apart walls extend radially outward relative to the rotating structure to define a passageway. The passageway is arranged radially between the aperture and the annular channel. The walls are configured to inhibit an axial flow of an oil passing from the aperture toward the annular channel.

An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

Provided is a flow path structure of a power transmission device which is capable of removing gas from a lubricating fluid guided to a fluid reservoir while suppressing an increase in a size of the entire power transmission device. A gasket (63) has an extending portion which extends toward an inside of a transmission case (31). A flow path (70) which extends from an upper portion to a lower portion and guides lubricating oil discharged from a discharge mechanism (64) to an oil reservoir is formed inside the transmission case (31) using the extending portion. The discharge mechanism (64) discharges the lubricating oil toward an inner surface of the flow path (70).

An epicyclic gear train for a turbine engine includes a gutter with an annular channel. A rotating structure includes a ring gear. The rotating structure has an aperture that is axially aligned with the annular channel. Axially spaced apart walls extend radially outward relative to the rotating structure to define a passageway. The passageway is arranged radially between the aperture and the annular channel. The walls are configured to inhibit an axial flow of an oil passing from the aperture toward the annular channel.

There is provided a tractor with an improved clutch housing structure, which includes a hydro-static transmission (HST) positioned between a clutch and a secondary transmission, to transmit power. The tractor comprises: a clutch housing with the clutch and the HST positioned inside; a partition to separate the clutch from the HST formed inside the clutch housing; and a heat-radiating opening formed in the partition.

A reservoir plate for dividing an inside of a transmission case into a differential chamber and a hydraulic oil storage chamber includes: a cylindrical portion covering a part of a differential gear; a flange portion radially extending from the cylindrical portion; and a differential ring surrounding portion extending from an outer circumferential edge of the flange portion so that a part of a differential ring gear is covered from above without interfering with a drive pinion gear. The cylindrical portion, the flange portion, and the differential ring surrounding portion are integrally formed with each other. A seal member is interposed between the transmission case and the outer circumferential edge of the flange portion at least in the range below the differential ring surrounding portion.

A transmission side cover assembly includes a transmission side cover carrying completely there on one or more filters and/or a cooler. Fluid flow channels are formed integrally in the material of the cover and provide fluid flow communication paths to the filters and/or cooler carried by the cover. The filters and/or cooler carried by the cover are accessible externally of the cover, for servicing thereof without removing the cover.

A power transmission device that includes a differential ring gear that meshes with a drive pinion gear to which power from a transmission is transmitted; a differential gear including a differential case coupled to the differential ring gear; a case that houses the differential ring gear and the differential gear; and a resinous partition that partitions an inside of the case into a differential chamber where the differential ring gear and the differential gear are placed and a working oil reservoir chamber to reserve working oil, wherein the partition includes a magnetic plate fixed to a lower part of a side surface thereof that faces the working oil reservoir chamber, and a magnet magnetically attracted and attached to the magnetic plate.

A mechanical device includes a housing, a transparent spacer member, a magnet, and an image capturing device. The housing has an internal space in which a machine component immersed in oil is housed. The spacer member is disposed in an opening of the housing. The magnet is supported by the spacer member. The image capturing device captures the internal space of the housing via the spacer member.

An epicyclic gear train for a turbine engine includes a gutter with an annular channel. A rotating structure includes a ring gear that has an aperture that is axially aligned with the annular channel. Axially spaced apart walls extend radially outward relative to the rotating structure to define a passageway. The passageway is arranged radially between and axially aligned with the aperture and the annular channel. The walls are configured to inhibit an axial flow of an oil passing from the aperture toward the annular channel.