Drainage pump and a hydraulic turbine incorporating a bearing me

Details Drainage pump and a hydraulic turbine incorporating a bearing me Drainage pump and a hydraulic turbine incorporating a bearing me

1994-02-16

1995-10-17

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between shaft or shaft sleeve and...

384297, 3849071, F04D 2904

Patent

active

054584604

ABSTRACT:
Disclosed is a bearing unit which can be used in a drainage pump operated without supply of clean water or a hydraulic pump, which exhibits excellent wear resistance against water containing earth and sand and satisfactory assembling facility, and a method of manufacturing the bearing unit.
The contact surface of a bearing made of stainless steel and/or that of a sleeve is applied with a sprayed coating, the main component of which is WC, and which contains one or more elements selected from a group consisting of nickel, chromium and cobalt as a binder material thereof, or a sprayed coating, the main component of which is Cr.sub.3 C.sub.2, and which contains NiCr as a binder material, after the sprayed coating has been formed, heating at from 300.degree. C. to 550.degree. C. is performed for one hour or longer so that hardness and wear resistance equivalent to those of a WC-12% sintered article is attained.

REFERENCES:
patent: 2297001 (1942-09-01), Bour
patent: 3936295 (1976-02-01), Cromwell et al.
patent: 4029368 (1977-06-01), Tschirky et al.
patent: 4126360 (1978-11-01), Miller et al.
patent: 4317850 (1982-03-01), Verburgh et al.
patent: 4848934 (1989-07-01), Blakely et al.
patent: 4892419 (1990-01-01), Inoue et al.
patent: 4912835 (1990-04-01), Harada et al.
patent: 4989306 (1991-02-01), Leino et al.
patent: 4997324 (1991-03-01), Shirai et al.
patent: 5346316 (1994-09-01), Okada et al.
Database WPI Week 8024 Derwent Publications Ltd., London, GB; An 80-42300c & JP-A-55 058 360 (Satohsen K.K.) 2 May 1980 *Abstract*.
Patent Abstracts of Japan, vol. 15, No. 197 (C-833) 21 May 1991 & JP-A-03 053 055 (Kobe Steel Ltd.) 7 Mar. 1991 *Abstract*.
Patent Abstract of Japan, vol. 12, No. 386 (M-754) 14 Oct. 1988 & JP-A-63 139 724 (Teijin Ltd) 11 Jun. 1988 *Abstract*.
Patent Abstracts of Japan, vol. 8, No. 168 (C-236) 3 Aug. 1984 & JP-A-59 067 363 (Tsukamoto Seiki K.K.) 17 Apr. 1984 *Abstract*.

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