Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Other

Nok Corporation

Aisin Aw Kabushiki Kaisha

Makoto Hijikata

Yasuo Hojo

Kazuhisa Ozaki

Fumitomo Yokoyama

Atsushi Tabata

Kagenori Fukumura

Masahiko Ando

Hideki Miyata

Akira Fukatsu

Yasunari Nakamura

Nobuaki Takahashi

Mikio Iwase

Yasunori Nakawaki

Akihito Hongoya

Masanori Kadotani

Toshiyuki Mae

Motoyuki Sakai

Koji Tsukamoto

Akihiro Kuroyanagi

Katsuyuki Asaoka

Harumichi Tsuboi

Yoshiaki Hirota

An automatic transmission including at least one rotary member; a rotary member enclosure enclosing the rotary member; and an oil reservoir arranged below the rotary member enclosure for collecting and reserving the oil. An oil separator is located facing the outer circumference of the rotary member for separating the oil adhering to the rotary member. Because the amount of oil left on the surface of the rotary member is reduced, the amount of oil recovered in the oil reservoir is accordingly increased and the level of the oil surface in the oil reservoir is prevented from falling.

Automatic transmission with a separator for removing oil from the

An oil seal member is compressed between a connecting pipe for supplying oil to an oil chamber of a hydraulic servo and the cylinder drum of the hydraulic servo. The cylinder drum has an interior oil chamber and turns through a predetermined angle upon operation of a frictional engagement element by the hydraulic servo. The end of the seal member pressed against the cylindrical drum surrounds an oil hole 73 formed in the cylindrical drum, and oil pressure is supplied to the oil chamber through an oil passage in which the seal member is mounted and through the oil hole. A recess is formed in the outer surface of the cylindrical drum around the oil hole and the end of the seal member is received in the recess. When the cylindrical member turns within the predetermined angular range, the end of the seal member is protected by the recess. As a result, the end of the seal member is not damaged and the integrity of the seal is protected.

Oil seal for automatic transmission

A control system for an automatic transmission, in which a first frictional engagement element and a second frictional engagement element are released according to a shift from a running range to a non-running range. The shift from the running range to the non-running range is detected, and the reduction in the oil pressure of the second frictional engagement element is controlled on the basis of the reduction in the oil pressure of the first frictional engagement element when the shift from the running range to the non-running range is detected.

Control system for automatic transmission, including coordinated

An oil temperature responsive hydraulic control system for an automatic transmission includes a hydraulic servo for applying/releasing a frictional engagement element; a pressure regulator valve for regulating oil pressure fed to the hydraulic servo; and a signal pressure oil passage for applying a pressure regulating signal pressure to the pressure regulator valve. A control valve is arranged in the signal pressure oil passage for changing the effective diameter of the signal pressure oil passage responsive to change in oil temperature.

Oil temperature responsive hydraulic control system for an automatic

Growing community of inventors

Toyota, Japan

Makoto Hijikata