Title of Invention | "COMBUSTION CONTROL SYSTEM OF A HOMOGENEOUS CHARGE" |
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Abstract | An internal combustion engine has at least one combustion chamber and a piston slidably disposed within the at least one combustion chamber. The piston is configured to reciprocate between a top-dead-center position and a bottom-dead-center position. The internal combustion engine also has an air supply in selective fluid communication with the at least one combustion chamber and a fuel supply in selective fluid communication with the at least one combustion chamber. The internal combustion engine further has a supply of non-combustible gas and at least one injector in fluid communication with the at least one combustion chamber and the supply of non-combustible gas. The at least one injector is configured to inject-combustible gas from the supply into the at least one combustion chamber. |
Full Text | DESCRIPTION (COMPLETE) OCR NOT PREPARE DUE TO PRINT PROBLEM I/We claim 1. An internal combustion engine (10), comprising: at least one combustion chamber (20); a piston (64) slidably disposed within the at least one combustion chamber (20) and configured to reciprocate between a top-dead-center position and a bottom-dead-center position; an air supply in selective fluid communication with the at least one combustion chamber (20); a source of fuel (36) in selective fluid communication with the at least one combustion chamber (20); a combustion control system (12) for controlling combustion timing; a source of pressurized non-combustible gas (80); and characterized in that at least one injector (82) in fluid communication with the at least one combustion chamber (20) and the source of pressurized non-combustible gas (80), the at least one injector (82) configured to inject an amount of pressurized non-combustible gas from the source (80) into the at least one comhustion chamber (20); the injection of the amount of pressurized non-combustible gas into the at least one combustion chamber (20) is adapted to cause auto-ignition of an amount of the fuel supply and the air supply in the at least one combustion chamber (20). 2. The internal combustion engine (10) as claimed in claim 1, wherein the at least one combustion chamber (20) includes a pre-combustion chamber (100), the injection of pressurized non-combustible gas being into the pre-combustion chamber (100). 3. The internal combustion engine (10) as claimed in claim 1, wherein the source of fuel (36) and the air supply are selectively communicated with the at least one combustion chamber (20) when the piston (64) is moving from the top-dead-center position to the bottom-dead-center position during an intake stroke such that a substantially homogeneous fuel and air mixture is formed when the piston (64) is moving from the bottom-dead-center position to the top-dead-center position during a compression stroke, prior to injection of the pressurized non-combustible gas. 4. The internal combustion engine (10) as claimed in claim 3, wherein the injection of pressurized non-combustible gas causes auto-ignition of the substantially homogeneous mixture of fuel and air. 5. The internal combustion engine (10) as claimed in claim 1, wherein the injection of pressurized non-combustible gas facilitates mixing of an amount of the fuel supply and an amount of the air supply within the at least one combustion chamber (20). 6. The internal combustion engine (10) as claimed in claim 1, wherein the pressurized non-combustible gas is injected when the piston (64) is moving from the top-dead-center position to the bottom-dead-center position during a power stroke. 7. The internal combustion engine (10) as claimed in claim 1, wherein the combustion control system (12) comprises the source of pressurized gas (80), the injector (82), an electronic control unit (84), a crank angle sensor (86), and an intake manifold sensor (88). 8. A method of operating an internal combustion engine (10), comprising: introducing an amount of fuel and air into at least one combustion chamber (20) of the internal combustion engine (10); moving a piston (64) between a bottom-dead-center position and a top-dead-center position to compress the amount of fuel and air; characterized in that injecting an amount of pressurized non-combustible gas into the at least one combustion chamber (20) to cause auto-ignition of the amount of fuel and air. 9. The method of claim 8, wherein the amount of fuel and air is introduced into the at least one combustion chamber (20) when the piston (64) is moving from the top-dead-center position to the bottom-dead-center position during an intake stroke, such that a substantially homogeneous mixture is formed when the piston (64) is moving from the bottom-dead-cenler position to the top-dead-center position during a compression stroke, prior to injection of the pressurized non-combustible gas. 10. The method as claimed in claim 8, including homogeneously mixing the amount of fuel and air prior to introduction of the amount of fuel and air into the at least one combustion chamber (20). |
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1840-del-2005-Abstract-(13-02-2013).pdf
1840-DEL-2005-Claims-(08-06-2012).pdf
1840-del-2005-Claims-(13-02-2013).pdf
1840-DEL-2005-Claims-(23-08-2011).pdf
1840-DEL-2005-Correspondence Others-(08-06-2012).pdf
1840-del-2005-Correspondence Others-(13-02-2013).pdf
1840-del-2005-Correspondence Others-(13-07-2012).pdf
1840-DEL-2005-Correspondence Others-(23-08-2011).pdf
1840-DEL-2005-Correspondence-Others-(01-12-2010).pdf
1840-del-2005-Correspondence-Others-(25-09-2012).pdf
1840-del-2005-correspondence-others.pdf
1840-del-2005-description (complete).pdf
1840-DEL-2005-Form-1-(01-12-2010).pdf
1840-DEL-2005-Form-1-(23-08-2011).pdf
1840-DEL-2005-Form-13-(23-08-2011).pdf
1840-del-2005-Form-2-(13-02-2013).pdf
1840-DEL-2005-Form-2-(23-08-2011).pdf
1840-DEL-2005-Form-3-(01-12-2010).pdf
1840-del-2005-Form-3-(13-07-2012).pdf
1840-DEL-2005-GPA-(01-12-2010).pdf
1840-del-2005-GPA-(13-02-2013).pdf
Patent Number | 255510 | ||||||||||||
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Indian Patent Application Number | 1840/DEL/2005 | ||||||||||||
PG Journal Number | 09/2013 | ||||||||||||
Publication Date | 01-Mar-2013 | ||||||||||||
Grant Date | 27-Feb-2013 | ||||||||||||
Date of Filing | 15-Jul-2005 | ||||||||||||
Name of Patentee | CATERPILLAR INC. | ||||||||||||
Applicant Address | 100 N.E. ADAMS STEET, PEORIA, STATE OF ILLINOIS 61629-6490 U.S.A. | ||||||||||||
Inventors:
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PCT International Classification Number | F02M23/00 | ||||||||||||
PCT International Application Number | N/A | ||||||||||||
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PCT Conventions:
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