Denso Corporation

The Furukawa Electric Co., Ltd.

Taiho Kogyo Co., Ltd.

Naruhiko Inayoshi

Akimitsu Sugiura

Masashi Suzuki

Kazuhide Kawai

Yoshimi Nakase

Kazutoyo Oosuka

Hiroyuki Wakabayashi

Youichi Murakami

Norihiro Adachi

Yoshitaka Sato

Keisuke Kawano

Tomonari Chiba

Hiromi Yokota

Atsushi Higashiura

Masahiko Aoyama

Daisuke Yoshitome

Hiromitsu Asai

Katsuhisa Kato

Tomonori Ishikawa

Yoshinori Tatematsu

Hiroaki Hayakawa

Takahiro Nozu

In a Cu&#x2014;Bi based sintered alloy, to which hard particles, such as FeP, are added, the main constituent components of the microstructure are a Cu matrix, Bi phase and the hard particles. In the sintering method of the present invention, the flow of the Bi phase is suppressed to as low level as possible. The novel structure is that the contact between the Bi phase and hard particles is kept to a low ratio. A lead-free bearing used for a fuel injection pump according to the present invention contains from 1 to 30 mass % of Bi and from 0.1 to 10 mass % of hard particles having from 10 to 50 &#x3bc;m of the average particle diameter, the balance being Cu and unavoidable impurities. The properties of the main component phases are utilized at a high level such that the sliding properties are equivalent to those of a Pb containing Cu-based sintered alloy.

Pb-free bearing used for fuel-injection pump

There is disclosed an insulated wire, having, on a conductor, an insulating coating including at least three layers, made up of an underlayer formed by applying and baking a polyamine-imide-series resin coating material, containing 0.05 to 1.0 parts by weight of a trialkylamine, and/or 5 to 20 parts by weight of an alkoxylated melamine resin, per 100 parts by weight of a polyamide-imide-series resin, an intermediate layer formed by applying and baking a polyimide-series resin coating material, and an overlayer formed by applying and baking a self-lubricating-type polyamide-imide-series resin coating material. According to the insulated wire, an insulating coating can be prevented from being damaged at the time of the working of a coil under severe conditions, even when the insulating coating is thin.

Insulated wire

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Aichi, Japan

Naruhiko Inayoshi