US 11,719,205 B2
Fuel injection system
Geoffrey Paul Cathcart, Mount Lawley (AU); Stephen John Karay, Scarborough (AU); and David James Caley, City Beach (AU)
Assigned to Orbital Australia Pty Ltd
Appl. No. 16/87,209
Filed by ORBITAL AUSTRALIA PTY LTD, Balcatta (AU)
PCT Filed Mar. 23, 2017, PCT No. PCT/AU2017/050261
§ 371(c)(1), (2) Date Sep. 21, 2018,
PCT Pub. No. WO2017/161422, PCT Pub. Date Sep. 28, 2017.
Claims priority of application No. 2016901091 (AU), filed on Mar. 23, 2016.
Prior Publication US 2019/0101088 A1, Apr. 4, 2019
Int. Cl. F02M 55/00 (2006.01); F02M 61/14 (2006.01); F02M 67/02 (2006.01); F02M 69/16 (2006.01); F02M 19/03 (2006.01); F02M 71/00 (2006.01); F02M 57/00 (2006.01); F02M 69/04 (2006.01)
CPC F02M 55/008 (2013.01) [F02M 19/03 (2013.01); F02M 55/00 (2013.01); F02M 61/14 (2013.01); F02M 67/02 (2013.01); F02M 69/16 (2013.01); F02M 71/00 (2013.01); F02M 57/00 (2013.01); F02M 69/047 (2013.01); F02M 2200/856 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for mixing a liquid fuel with air in a dual fluid direct injection system for an internal combustion engine, the apparatus comprising an inlet for receiving a metered quantity of liquid fuel from a liquid fuel metering device comprising a fuel injector, a flow path extending from the inlet for transporting liquid fuel received from the fuel injector at the inlet to a mixing zone at which liquid fuel is admitted into a volume of air to create an air-fuel mixture, the flow path having an inlet end communicating with the inlet and an outlet end communicating with the mixing zone to convey liquid fuel received at the inlet end and to discharge liquid fuel at the outlet end into the mixing zone, wherein a volume of liquid fuel discharged at the outlet end of the flow path corresponds to a volume of the metered quantity of liquid fuel received at the inlet end of the flow path wherein the flow path retains liquid fuel therein by capillary action whereby the flow path remains substantially filled with liquid fuel between delivery cycles, and wherein the flow path comprises a directional change between the inlet end and the outlet end downstream of the fuel injector.