Jatco Corporation

Other

Kayaba Industry Company, Ltd.

Hiroyuki Nishiyama

Shingo Hirotsu

Kiyokazu Tanaka

Fumikazu Takaoka

Tomoyuki Fujita

Akira Fujiki

Masamichi Sugihara

Motohiro Suzuki

Masato Otsuki

Makoto Yoshida

Youji Hiraoka

Haruo Okamoto

Yoshinobu Yasue

Katsutoshi Amano

Masahisa Miyahara

An oil strainer includes a body which has lower and upper walls and an inside space between the lower and upper walls, a filter substantially horizontally disposed within the body so as to divide the inside space into lower and upper space sections, an outlet port provided on the upper wall of the body and communicated with the upper space section, and an inlet port provided on the lower wall of the body and communicated with the lower space section. The lower wall includes a first area in which an inlet port periphery of the inlet port is disposed, and a second area separate from the first area. A vertical distance between the filter and the lower wall in the first area is smaller than a vertical distance between the filter and the lower wall in the second area.

Oil strainer for automatic transmission

In a vane pump disposed inside a transmission case of a continuously variable transmission, a pump case (), a pump drive shaft () rotatably supported by a shaft bore () of the pump case () to rotate a rotor (), and a drain port (), one end thereof being opened to a shaft bore () of the pump drive shaft () and the other end being opened to an outside of the pump case () are provided. A leaked oil flown via the drain port () from a pump discharge side is discharged to an outside of the pump case ().

Vane pump for continuously variable transmission

An internal gear oil pump made of Al alloys having less mutual damage property and superior wear resistance is provided. The internal gear oil pump has a casing with a gear compartment, a drive gear, and a driven gear, all of which are the structural members of the internal gear oil pump. The casing is constituted of an Al-alloy casting. The drive gear and the driven gear are constituted of a hot plastic working material of Al&mdash;Si alloy powder. The hot plastic working material is constituted of an Al&mdash;Si alloy having a structure in which unit crystal phases are dispersed in a base matrix by 10 to 40 area percent. by the structural observation with an optical microscope, the unit. crystal phases being harder than the base matrix. The base matrix is constituted of an Al&mdash;Si alloy which contains, on weight basis, 10% to 18% Si, 4% to 8% Fe, 1% to 3% Ni, 1% to 3% Cr, and the balance being Al and incidental impurities. The alloy has a structure in which ultrafine grains of intermetallic compounds and Si are dispersed in the matrix. The unit crystal phases are constituted of an Al&mdash;Si alloy which contains, on weight basis, 25% to 40% Si, 1% to 3% Fe, 2% to 6% Ni, 0.3% to 2% Cr, and the balance being Al and incidental impurities. The alloy has a structure in which ultrafine grains of intermetallic compounds and Si, and primary Si crystal grains are dispersed in the matrix of the unit crystal phases.

Internal gear oil pump made of aluminum alloys

An engaging apparatus is provided that includes: outer and inner support members having respective splines that are opposed to each other in a radial direction thereof, and being rotatable relative to each other; a plurality of outer friction plates engaging with the spline of the outer support member; a plurality of inner friction plates alternately superposed on the outer friction plates and engaging with the spline of the inner support member; and a hydraulic piston mechanism for compressing a stack of the outer and inner friction plates. A spring member is inserted between circumferentially opposed faces of a driven set of the friction plates and a spline of the corresponding support member. The spring member is formed by bending an elastic material at an axially intermediate point thereof to have a long side and a short side with a circumferential spacing left therebetween. The long side supports the driven plates, and the end portion of the short side is supported by a side wall of the spline at a point that is approximately aligned with an axially middle portion of a region of said long side, which region supports the driven plates.

Engaging apparatus

According to the clutching device of the present invention, a flexible member, which uniformly forces a plurality of friction plates almost in the circumferential direction, is inserted between edge faces, of fixed friction plates, to which no load is applied at the time of engagement, and a spline face that is opposite to the edge faces. The insertion position is selected at such a location where the rotational direction of a rotary body is diagonally upward and toward the center. Since a load on and a degree of distortion of the flexible member are small, the flexible member can be compactly made and can have a simple design, and the mounting structure on the spline side is also simpler. The clutching device with this structure effectively prevents the vibration of friction plates, requires only a small number of components. And additional components are easily installed and removed.

Clutching device

Growing community of inventors

Fuji, Japan

Hiroyuki Nishiyama