Taiho Kogyo Co., Ltd.

Other

Motoshi Hayashi

Keiji Tanaka

Shinya Nakamura

Akira Takenaka

Makoto Shibata

Masahiro Kawahara

Yasuro Ohishi

Kazuo Sakurai

Kiyoshi Fukatsu

Hiroyuki Imamura

Eiji Sugiyama

Toshiaki Inaguma

Ken-ichirou Futamura

A cylindrical sliding bearingcan rotatably support a rotational shaft by a sliding surface(inner circumferential surface). A crowninghaving a sloped surface is formed at both ends of the sliding surfacein the axial direction. The crowningincludes a first crowningA formed of a sloped surface of a lining layerand a second crowningA formed of a sloped surface of a back metalpositioned on the lower side of the first crowning. Unlike a conventional sliding bearing, the back metalwhere the crowningis positioned is provided as a sloped surface (A). As compared with conventional bearings, the crowningcan be prevented from being unevenly brought into contact with the rotational shaft.

Sliding bearing and method of manufacturing the same

An improved scroll compressor comprises a fixed scroll and an orbiting scroll, as well as an Oldham's coupling which enables the orbiting scroll to have a orbital movement. The Oldham's ring of the Oldham's coupling is so formed that its sliding surfaces for counterpart members to slide thereon are formed by a base material containing silicon particles, while the surface of each silicon particle (remaining on the base material's surface serving as a slidable surface for counterpart members to slide thereon) is formed into a flat surface. In practice, a ratio of silicon portions formed into flat surfaces to an entire sliding area of the Oldham's coupling is in a range of 3% to 20%, preferably 5% to 15%. With the use of the scroll compressor of the present invention, it is possible to improve the wear resistance of the Oldham's ring of the Oldham's coupling and its counterpart members in the scroll compressor.

Scroll compressor having an Oldham's ring containing silicon particles

In the boronizing of a ferrous sintered material, the porosity of the surface to be boronized is reduced, while the interior of the ferrous sintered material is kept essentiall as sintered. The boron phase is selectively on the surface having a low porosity, resistance are attained.

Boronized sliding material and method for producing the same

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Toyota, Japan

Motoshi Hayashi