Roller bush for fuel injection pump

Details Roller bush for fuel injection pump Roller bush for fuel injection pump

1997-08-07

2000-06-13

Denion, Thomas E.

Expansible chamber devices

Rectilinearly moving working member and coaxial or parallel...

92129, 3849071, F01B 300

Patent

active

060735376

ABSTRACT:
A roller bush for a fuel injection pump is interposed between a metal roller and a pin. The roller is forced to contact with a cam reciprocating a plunger, and the pin supports the roller rotatably about a rotational axis at either axial side of the bush. Either axial end portions of the bush entirely consist of ceramic, each portions having the axial length from the corresponding axial end surface of L. The ratio of the axial length L to the entire axial length L0 of the bush is set to be equal to or larger than {(11-d)/16}, where d represents the inner diameter of the bush.

REFERENCES:
patent: 3525216 (1970-08-01), Phillips
patent: 4707986 (1987-11-01), Takada et al
patent: 4941319 (1990-07-01), Yamamoto et al
patent: 5030065 (1991-07-01), Baumann
patent: 5063887 (1991-11-01), Ozawa et al
patent: 5063888 (1991-11-01), Ozawa
patent: 5366401 (1994-11-01), Nanami et al
patent: 5647779 (1997-07-01), Nanami
Patent Abstracts of Japan, vol. 096, No. 008 dated Apr. 30, 1996 (of JP 8-109960) (1 page).
European Search Report dated Jun. 30, 1998 (2 pages).
Communication dated Jul. 16, 1998 (1 page).
Information List (Form 1) (1 page).

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