Device for injecting a fuel-gas mixture
AssigneeRobert Bosch GmbH
InventorsDetlef Nowak, Guenther Bantleon
Life of this patent
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Abstract
A device for injecting a fuel-gas mixture includes a cost-effective gas-containing sleeve which is capable of being easily assembled and simply adjusted. The gas-containing sleeve abuts with its casing part, for example, only on four rounded-off edges of the square valve end, while the casing part surrounds the surfaces of the valve end with a radial clearance, so that gas interspaces are formed in between for supplying gas. The injection device is particularly suited for injecting a fuel-gas mixture into the intake manifold of a mixture-compressing internal combustion engine having externally supplied ignition.
Claims18
A device for injecting a fuel gas mixture, comprising:
- a) a fuel injection valve having a longitudinal valve axis and a valve end, said valve end having at least one ejection-spray opening and a circular perimeter, said circular perimeter including at least one depression and at least one circular area;
- and
- b) a cup-shaped gas-containing sleeve, gas being supplied between said valve end and said sleeve, said sleeve having a casing part and a base part, said casing part axially surrounding, at least in part, said valve end, said base part radially surrounding, at least in part, said valve end, said base part having at least one mixture-ejection-spray opening, and said casing part abutting on at least one circular area of said valve end and forming together with said depression at least one gas interspace extending in the axial direction.
Dependencies are inferred from the claim text.