Gkn Driveline Torque Technology Kk

Koji Iizuka

Masayuki Sayama

Tomiaki Ochiai

Masashi Aikawa

Satoshi Niimura

Takayuki Matsumoto

Atsushi Kawano

Masahiro Kasahara

Mitsuaki Kakuta

Akihiro Masubuchi

Katsuyoshi Koike

A power transmission apparatus is capable of easily passing lubricant toward a seal arranged between a higher shat and an opening of a case of the apparatus. The apparatus includes the higher shaft, i.e., a hollow connecting shaft that faces the outside of the transfer case through the opening of the transfer case. The oil seal is arranged between the hollow shaft and the opening of the transfer case. The hollow shaft meshes, through helical spur gears, with an intermediate transferring shaft that is positioned lower than the hollow shaft. A lubricant guide is arranged to receive lubricant splashed up by the ring gear and helical spur gear of the intermediate shaft and guide the received lubricant toward the oil seal and a ball bearing.

Power transmission apparatus

An electromagnetic clutch is provided with: a clutch hub which is connected to a shaft member (one of a pair of rotation members); a clutch housing which is connected to a hollow shaft (the other of a pair of rotation members); a rotor which is connected to the clutch housing; a main clutch (clutch member) which is disposed between the clutch hub and the clutch housing; and an electromagnet which operates the main clutch. An end surface of the clutch housing and an end surface of a core of the electromagnet are disposed to be opposed to each other with the rotor interposed therebetween in an axial direction. The end of the rotor in a side of the clutch housing is formed with an extension portion which extends to the clutch housing in the axial direction. An outer periphery of the clutch housing is connected to the extension portion through a connection portion. The connection portion is disposed outside the main clutch in a radial direction.

Electromagnetic clutch

A magnetic-path member includes first and second magnetic portions positioned on inner and outer peripheral sides of the magnetic-path member respectively. The magnetic-path member includes a non-magnetic portion interposed between the first and second magnetic portions and coupling the first and second magnetic portions by heat sintering. Magnetic lines of force occurring from an electromagnet pass through the magnetic-path member.

Magnetic-path member, electromagnetic coupling device using magnetic-path member, and method of manufacturing magnetic-path member

Growing community of inventors

Tochigi, Japan

Koji Iizuka