Fluid sprinkling – spraying – and diffusing – Injection nozzle opened by relieving supply
Patent
1990-11-08
1992-02-25
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Injection nozzle opened by relieving supply
2395334, 2395338, 23953312, 239585, F02M 4700
Patent
active
050906208
ABSTRACT:
An accumulator type of fuel injection nozzle having an injection valve, a first electromagnet for initiating fuel injection, and a second electromagnet for controlling the lift amount of the injection valve is provided with an energizing arrangement which enables effective fuel injection control but which greatly reduces the risk of burning damage to the electromagnets. The amp-turn characteristics of the first electromagnet coil provide for a rapid start-up time wherein the peak magnetic flux is reached relatively quickly. In contrast, the amp-turn characteristics of the second electromagnet coil provide for a more gradual start-up time so that peak magnetic flux is reached more gradually. The second electromagnet coil is also adapted to achieve a relatively large magnetic flux without the need for large current supply. In operation, when the second electromagnet is energized, such energization is started before energization of the first electromagnet for a particular fuel injection cycle.
REFERENCES:
patent: 4513719 (1985-04-01), Edo
patent: 4566416 (1986-01-01), Berchtold
patent: 4637553 (1987-01-01), Kushida et al.
patent: 4899935 (1990-02-01), Yoshida et al.
patent: 4972996 (1990-11-01), Cerny
patent: 5004154 (1991-04-01), Yoshida et al.
Suzuki Minoru
Yoshida Takeo
Beutler Ernest A.
Kashnikow Andres
Merritt Karen B.
Yamaha Hatsudoki Kabushiki Kaisha
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