Electromagnetic fuel injection valve and method for...

Details Electromagnetic fuel injection valve and method for... Electromagnetic fuel injection valve and method for...

2005-05-24

2005-05-24

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Processes

Of fuel injection

C239S585100, C239S533200

Reexamination Certificate

active

06896195

ABSTRACT:
An electromagnetic fuel injection valve wherein it is possible to prevent undesired adhesion between the respective abutting surfaces of an armature and a stationary core as well as to ensure the required wear resistance for the abutting surfaces and wherein the amount of lift of the valving element is unlikely to change is provided. After rough surfaces like satin-finished surfaces have been farmed on the abutting surfaces by shot peening, the rough surfaces are flattened by spotting. Therefore, the abutting surfaces can easily separate from each other without likelihood of adhering so closely that is difficult for them to separate from each other. Also, the amount of lift of the valving element is unlikely to change. Accordingly, the amount of fuel injected by the fuel injection valve is unlikely to change with passage of time. Thus, stable fuel supply can be performed.

REFERENCES:
patent: 4231525 (1980-11-01), Palma
patent: 4527744 (1985-07-01), Hafner et al.
patent: 4796855 (1989-01-01), Sofianek
patent: 4932251 (1990-06-01), Okada et al.
patent: 5039568 (1991-08-01), Taniguchi et al.
patent: 8506876 (1996-07-01), None
patent: 11247739 (1999-09-01), None
*English abstract and computer translation are enclosed.

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