Orbital Engine Company (australia) Pty Limited

David John Longman

Michael Leonard McKay

James Allen Kimmel

Robert Walter Frew

David James Caley

Hugh William Carlisle

Lech Janusz Turno

A fuel delivery injector for an internal combustion engine is provided. A fuel injector forms part of a device which provides a combined injection and ignition. The fuel delivery injector comprises first and second portions adapted to be detachably connected together. The first portion incorporates a valve structure having a valve member movable with respect to a valve seat for opening and closing a delivery port, and an actuating member operatively connected to the valve member. An actuator is provided in the second portion. When the first and second portions are connected together, the actuator is operably associated with the actuating member to provide an actuating assembly. Typically, the actuating assembly comprises an electromagnetic device in which the actuating member comprises a solenoid armature and the actuator comprises a solenoid coil, whereby connection of the first and second portions together completes assembly of the electromagnetic device.

Direct injection of fuels in internal combustion engines

Disclosed is an injector nozzle through which fluid is delivered and which has a port () having an internal surface and a valve member () having a complementary external surface. The valve member () is movable relative to the port () to respectively provide a passage between the internal and external surfaces for delivery of fluid in the form of a spray. Alternatively, sealed contact of the surfaces will prevent the delivery of fluid. The nozzle includes a flow control body () located beyond an extremity of the port (). The flow control body () has a control surface () arranged downstream of the port () in the direction of movement of the valve member (). The control surface () is configured and positioned to promote the fluid spray established by the fluid issuing from the port () to in part follow a path determined by the shape of the control surface (). The flow control body () includes an insulating region () arranged to restrict heat transfer from the control surface () to the nozzle. The insulating region () may be the spacing between the surface () of the flow control body () closest to an end face () of the valve member () and that end face ().

Fuel injector nozzles

Fuel injection apparatus

Growing community of inventors

Perth, Australia

David John Longman