Denso Corporation

Other

Tris Inc.

Denso Corpora Tion

Kyodo Yushi Co., Ltd.

Furukawa-sky Aluminum Corporation

Kyoji Inukai

Youichi Murakami

Masami Niimi

Yasuyuki Wakahara

Yoichi Sakaura

Takayoshi Otani

Mitsuo Ikeda

Naoki Morita

Takahiro Sakamoto

Osamu Takada

Akio Niikura

Yutaka Imai

Masashi Tobayama

Keizo Takeuchi

Shozo Ikejima

Akira Kawahara

Kenzo Kiyose

Iwaki Hirooka

Ryosuke Ichimura

Tomohiro Ito

Ryoichi Honbo

Kazuki Isa

Hirotada Kanagawa

Tokio Hotta

Toshio Ishikawa

Hiromasa Tanaka

Yukinobu Isoda

Toshizo Watanabe

Teruo Kobayashi

Hiroaki Kawamura

Nobuyuki Yamashita

Ryochi Honbo

Kenichi Matsumoto

Masakiyo Shimada

Yusuke Asada

Etsuo Kokuryu

Sinya Nakagawa

Makoto Nisio

Provided is a grease composition for a magnet clutch of an automobile, including: a base oil; and a thickener, wherein the composition contains 5% by mass or more of a sulfur content in terms of sulfur element relative to a total mass of the composition.

Grease composition

An aluminum alloy fin material for brazing, characterized by comprising an aluminum alloy comprising more than 1.4% by mass but not more than 1.8% by mass of Fe, 0.8% by mass or more but 1.0% by mass or less of Si, and more than 0.6% by mass but not more than 0.9% by mass of Mn, with the balance being Al and inevitable impurities, wherein 80% or more of the surface area, as viewed from the surface layer of the fin plane, is occupied by recrystallized grains with a length of 10 mm or more, in a direction rolled.

Aluminum alloy fin material for brazing

A brush bodyof a metal-graphite brushis composed of a commutator side portionwhich contains graphite, copper and a metal sulfide solid lubricant, and a lead side portionwhich contains graphite and copper but does not contain any metal sulfide solid lubricant. A lead wireis attached to the lead side portioncontaining no metal sulfide solid lubricant.

Metal-graphite brush

A copper-zinc alloy powder of which zinc content is from 10 to 50 wt % and of which mean particle diameter is from 15 &#x3bc;m or under is added to a Pb-less brush body comprising graphite, copper and a metal sulfide solid lubricant of a copper-graphite brush.

Copper-graphite brush

A metal-graphite brush comprises a brush body which is made by mixing and molding metal powder and graphite powder. 2 mg to 30 mg as amounts of phosphate ion of at least one of phosphoric acid and a phosphate compound is added to 1 g of the brush body of the metal-graphite brush.

In a multilayer brush composed chiefly of copper and graphite and incorporated therein with a solid lubricant, which consists essentially of two types of brushes, a high-copper-content part brush containing the copper in a large quantity and a low-copper-content part brush containing the copper in a small quantity, at least the high-copper-content part brush contains zinc in an amount of from 0.1% by weight to 5% by weight, and the zinc and the copper form an alloy. This can provide a multilayer brush having a superior durability, which can prevent the performance of motors from lowering, without use of the harmful substance such as lead, and may less undergo any wear due to mechanical and electrical sparkling of the brush.

Multilayer brush

Ag particles produced by chemical reduction and having a mean particle size of 5 &mgr;m are added by 0.05-3 wt % and Zn are added by 2-10 wt % to a Pb-less brush body containing graphite, Cu and a metal sulfide solid lubricant of a metal-graphite brush.

Metal-graphite brush and production method thereof

A metal-graphite brush has a copper-graphite brush body to which a metal sulfide solid lubricant is added and a lead embedded. Indium is at least added to an interface between the brush body and the lead in a concentration of 0.4-8 wt %.

A sulfidation-resistant current-carrying member, such as a commutator, suitable for a direct-current motor in a fuel pump is provided. The current-carrying member for a direct-current motor in a fuel pump includes a commutator composed of a carbon layer having carbon as a principal component and forming a sliding surface at one end, and a metal carbon layer fixedly bound with the carbon layer at the other end and comprising 55 to 90 wt % of metal having brass as a principal component and a remaining portion having carbon as a principal component. By using brass as a primary metal component in the metal carbon layer, it is possible to achieve a commutator with superior resistance to sulfidation.

Current-carrying member for a direct-current motor in a fuel pump, method for producing the same, and fuel pump

Growing community of inventors

Toyota, Japan

Kyoji Inukai