AU2004100584A4

AU2004100584A4 - Ultra Low Exhaust Emissions Controller

Info

Publication number: AU2004100584A4
Application number: AU2004100584A
Authority: AU
Inventors: Richard Stanley Baxter
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-08
Filing date: 2004-05-08
Publication date: 2004-08-19
Anticipated expiration: 2012-05-08

Description

Page 1 Specification Description: Ultra Low Exhaust Emission Controller 1. The Ultra Low Exhaust Emission Controller is a device that is connected to the original remanufactured diesel engine that is converted to spark ignition and attached to the air intake system. By mechanical (cable, linkage, hydraulic, air assisted or direct coupling to the engine air intake ports) and/or electronic or a combination of mechanical (cable, linkage, hydraulic, air assisted or direct coupling) and/or electronic systems that constantly monitors and/or controls the air intake stream of the original diesel engine with six fixed bladed 45 degree.

angled metal blades that mixes the gas and air prior to entering the combustion chamber of the engine The device works in conjunction with an ECU (Electronic Control Unit) and one, some or all of the following engine sensors. Air intake temperature, fuel pressure, fuel temperature, exhaust temperature, engine coolant temperature, engine revs per minute, camshaft position, throttle position, intake manifold pressure and lambda to control the position of the gas and air mixture. And override the original diesel engine air intake system to deliver the optimum amount of fuel and air mixture for any rpm and load condition the engine can operate at.

2. From data supplied by the engine sensors the ECU calculates the correct fuel required for every engine rpm and load condition and the gas fuel injectors accordingly to optimise fuel economy and emissions. The ECU also controls the gas injectors and throttle position and therefore the gas fuel delivery in an (LPG, LNG, CNG) spark ignition engine.

3. The Ultra Low Exhaust Emissions Controller can either be mounted directly to the original diesel engine or mounted in any convenient position and connected to the diesel engine air intake system by metal tubing (as shown in the attached Figure numbers The Ultra Low Exhaust Emissions Controller overrides and completely replaces the original diesel engine air intake system that would normally control the distribution of air and fuel into the engine.

4. The invention is a means of electronically monitoring and/or controlling the diesel engine air intake stream with a direct link to the diesel engine cylinder block. This will electronically vary the amount of fuel and air delivered to the engine dependant upon rpm and load conditions.

The electronically controlled servomotor as shown in drawing numbered is a cylindrical shaped electronically controlled motor with a moveable steel shaft fitted inside the length of the motor. The position of the shaft can be varied by altering the electrical current to the electrical circuit in the main body of the electronic motor which opens and closes a metal plate varying the air flow into intake manifold Included in the electrical circuit of the device is a position sensor that is used to register the position of the shaft.

Page 2 6. The Ultra Low Exhaust Emissions Controller can be used on diesel and gas engines with any number of cylinders.

Explanations of drawings and functions: Fiqure 1&2 Showing the original servomotor and connection between the Ultra Low Emissions Controller planum chamber. As the speed of the engine increases so does the servo motor shaft move. The position of the servo motor plate determines how much fuel and air is delivered to the engine combustion chambers Figure 3&4 (Shows the position of the fuel injection block relative the engine and Ultra Low Exhaust Emissions Controller Illustrates a method of mounting the fuel injection rail in relation to the Ultra Low Exhaust Emissions Controller connecting the fuel injection system to the Planum chamber that are directly linked together.

Fiure 5&6 Illustrates an alternative method of mounting connecting the Ultra Low Exhaust Emissions Controller to the diesel and gas engines.

Figure 7&8 Fuel Injection Block secures the gas fuel injector in place so that gas is timed to pulse width electronic injection signals from the electronic control module.

Figure 9 Air and Gas Mixing Device. Air and gas are forced through the mixing device blades.

This slows down the engine air and gas flow to allow mixing of the fuels prior to the charge entering the engine cylinders where combustion takes place.

Claims

1. By electronically controlling the air intake stream using the Ultra Low Exhaust Emissions Controller and being able to vary the Servo motor plate the device can be used as an air flow limiting device.

2. By using the Ultra Low Exhaust Emissions Controller to electronically control the engine air intake stream it is possible to add LPG, LNG or CNG to the engine through an additional set of injectors operated sequentially to create a very low emission spark ignition or dual fuel gas and diesel engine.

3. By using the Ultra Low Exhaust Emissions Controller in conjunction with the ECU and sensors. It is possible to convert an engine to either an electronically controlled fuel delivery system or to convert it to a dual fuel engine with the benefit of both improved fuel consumption and improved emissions.

4. The Ultra Low Exhaust Emissions Controller can be used on either a dedicated diesel engine or a dual fuels diesel and dedicated gas engine.

The Ultra Low Exhaust Emissions Controller can be used to electronically position the Servo motor and this will prevent over fuelling of the engine during acceleration and after gear changes therefore eliminating over fuelling reducing emissions and decreasing fuel consumption.

6. The Ultra Low Exhaust Emissions Controller and the Servomotor (in conjunction with the ECU) is in a direct relationship to throttle position and therefore continuously optimises fuel delivery for every engine rpm and load condition.