Intermittent swirl type injection valve

Details Intermittent swirl type injection valve Intermittent swirl type injection valve

1984-09-05

1986-12-16

Peters, Jr., Joseph F.

Fluid sprinkling, spraying, and diffusing

Flow deflecting or rotation controlling means

Fluid rotation inducing means upstream of outlet

23953312, B05B 134, F02M 6108

Patent

active

046291270

ABSTRACT:
An intermittent swirl type injection valve having a spray angle, capacity coefficient and fuel spray travel distance set so that the valve produces optimum engine operating conditions, with the spray angle, capacity coefficient and fuel spray travel distances being determined taking into account the gap area A.sub.c, the spray hole diameter d.sub.e, and the area A.sub.g of tangential passages in the valve. The injection valve includes a valve body and a valve needle slidably fitted in a valve hole formed in the valve body. A spray hole in the valve body merges with a valve seat provided at an end of the valve hole, and the spray hole is shaped to receive the lower end of the valve needle. Tangential passages swirl the fuel when the needle valve leaves the valve seat to open the valve to spray fuel substantially conically through the spray hole. The injection valve is designed so as to satisfy the following conditions:

REFERENCES:
patent: 1252254 (1918-01-01), Fisher
patent: 4060199 (1977-11-01), Brune et al.
patent: 4179069 (1979-12-01), Knapp et al.
patent: 4365746 (1982-12-01), Tanasawa et al.
patent: 4526143 (1985-07-01), Oshima et al.

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