Orbital Engine Company (australia) Pty Limited

Orbital Australia Pty Limited

Orbital Engine Company Australia

David Richard Worth

Stephen Reinhard Malss

Thomas Schnepple

Geoffrey Paul Cathcart

Richard William Hurley

Stuart Graham Price

Richard Albert Woolford

Keith Melbourne

Gregory B Bell

Stephen James Watson

Rodney Alexander Houston

Troy Bradley Epskamp

Wayne Andrew Hawken

Koon Chul Yang

Terran Ambrose Barber

Andrrew Michael Tilmouth

Jorge Manuel Da Silva

Mark John Taylor

Andrew Rabbit

Ramon Newmann

Michael Moore

This disclosure describes a method of controlling operation of an unmanned aerial vehicle (UAV) having a flight control system comprising: a flight controller for implementing a flight control strategy; and an engine control unit interfaced with the flight controller for controlling engine operation. An engine speed target is set for the flight control system in response to one or more signals communicated by the flight controller to the engine control unit which controls engine operation to achieve the engine speed target by closed loop control over fueling without requiring throttle position control.

Method of controlling operation of an unmanned aerial vehicle

A method of treating NOx emmissions in the exhaust gas of an internal combustion engine having catalyst means including at least a first catalyst converter capable of treating NOx, the method including operating the engine in a first mode to promote a first set of conditions and in a second mode to promote a second set of conditions, wherein the first mode of operation includes operating the engine with a lean air-fuel ratio, and the second mode of operation includes operating the engine with a stoichiometic air-fuel ratio.

Exhaust gas treatment method and device

A method of measuring the airflow in an engine, the engine having an intake manifold, including:

Engine airflow measurement

A method of controlling the engine speed of an internal combustion engine, the method including the steps of determining the engine speed demanded by an operator of the engine and comparing this demanded engine speed with a predetermined engine speed limit, wherein if the demanded engine speed exceeds the predetermined engine speed limit, the fuelling rate demanded of the operator is only reduced in order to control the engine speed to the predetermined engine speed limit.

Speed limiter

A method and system of treating blow-by gases within an internal combustion engine, the engine ( ) including at least one combustion chamber ( ), a dual fluid fuel injection system ( ) for delivering a metered quantity of fuel entrained in compressed gas to the at least one combustion chamber ( ), the injection system ( ) having a compressor ( ) for supplying the compressed gas, the method including using the intake vacuum of the compressor to draw the blow-by gases from within the engine for subsequent delivery by the injection system to the at least one combustion chamber.

Treatment of engine blow-by gases

In introducing fuel to a combustion chamber, the end of air (EOA) is established in the crank angle domain. For example, determination of the average or raw speed is utilize to determined an appropriate crank angle for the closing of the delivery injector (EOA). Once the end of air (EOA) is established in the crank angle domain, the start of air (SOA) may be set in the time domain (by a processor) at a time prior end of air (EOA) by duration equal to the time which the delivery is required to remain open. The required pulse width for the fuel metering injector and the desired fuel-air delay time may then be subtracted from the start of air (SOA) to obtain the start of fuel (SOF) and end of fuel (EOF) in the time domain. Other ways may be utilized to calculate SOA, SOF and EOF. For example, SOA may be estabished in the crank angle domain.

Engine control strategy

Pressurizing a gas injection type fuel injection system

Oil supply method for an internal combustion engine

A method of controlling the mass of fuel delivered to a direct injected engine subject to a change with time in engine load demand. A rate of change of fuel required per cycle of the engine in response to the change in engine load demand is determined. A filter constant is applied to the determined rate of change of fuel required to maintain a value of the rate of change of fuel required at no greater than a predetermined threshold level. The application of the filter constant is dependent upon at least one parameter selected from the group consisting of engine gear, clutch position, vehicle road speed, engine load and engine speed.

Control of fueling rate of an engine

Control of fueling of an internal combustion engine

An engine management system comprising engine control unit (17) which receives throttle position signals from at least two throttle position sensors (15); compares the signals; selects a preferred signal in response to a discrepancy between the signals; and operates the engine using that preferred signal.

Air fuel ratio control

Disclosed is a method of operation of a marine engine comprising sensing an operator demand for a gear-shift and, in response to the sensing of said operator demand, varying the engine torque profile to enable said gear-shift. Typically, the engine torque profile is required to be varied to overcome forces resistive to gear-shift.

Operation of marine engines

Catalytic treatment of engine exhaust gas

Method of operating an internal combustion engine

Exhaust gas recirculation in a two stroke engine

Growing community of inventors

Shenton Park, Australia

David Richard Worth