Electromagnetically-operable fluid injectors

Details Electromagnetically-operable fluid injectors Electromagnetically-operable fluid injectors

F - Mech Eng,Light,Heat,Weapons

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F02D 41/00 (2006.01) F02M 51/06 (2006.01) F02M 61/16 (2006.01) F02M 51/08 (2006.01)

Patent

CA 1224368

- 1 - "Electromagnetically-Operable Fluid Injectors" ABSTRACT An electromagnetically-operable fuel injector comprising a fuel chamber having an outlet nozzle and into which a solenoid core projects. A ball valve in the gap between the core and the nozzle orifice and movable towards and away from the core to seat and unseat a valve seat around the nozzle orifice by energisation of an electromagnetic circuit. Compensating means are provided which respond to changes in temperature by changing a physical characteristic. The compensating means function either to change the length of the core or to adjust the position of the valve seat relative to the core such that any tendency for fuel metering characteristics of the injector to be changed by a change in temperature in the injector is countered whereby operation of the injector to inject fuel is substantially independent of temperature change.

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