# US 2013/0152900 A1 · Internal combustion engine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152900 A1 - Document ID: US20130152900A1 - Status: Published application - Kind: A1 - Application number: 13/819,926 - Filed: 2011-09-01 - Published: 2013-06-20 - Earliest claimed: 2010-09-03 - Assignees: Toyota Jidosha Kabushiki Kaisha - Inventors: Masahiko Masubuchi - Web page: https://patentgrep.com/patent/US20130152900A1 ## CPC - F02B 1/12: with compression ignition (with fuel-air charge ignited by compression ignition of an additional fuel F02B7/00) - F02D 19/061: {by controlling fuel injectors} - F02D 19/0692: {Arrangement of multiple injectors per combustion chamber} - F02D 19/081: {Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other} - F02D 19/105: {operating in a special mode, e.g. in a liquid fuel only mode for starting} - F02D 41/0025: {Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures} - F02D 41/0027: {the fuel being gaseous (non-electrical control F02D19/02)} - F02M 21/0278: {Port fuel injectors for single or multipoint injection into the air intake system} - F02M 21/0281: {Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber} - F02D 41/3094: {the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder} - F02D 2041/389: {for injecting directly into the cylinder} - Y02T 10/30: Use of alternative fuels, e.g. biofuels - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An internal combustion engine (100) includes: a first fuel supply portion (28) which is provided in a combustion chamber (12) or in an intake passageway (40) that communicates with the combustion chamber (12), and which supplies a first fuel; a second fuel supply portion (24) that is provided in the combustion chamber (12) and that supplies a second fuel that is capable of compression-ignited fuel; and a third fuel to supply portion (26) that is provided in the intake passageway (40) and that supplies the second fuel. ## Claims ### Claim at position 1 -8. (canceled) ### Claim 9 An internal combustion engine comprising: a first fuel supply portion which is provided in an intake passageway that communicates with a combustion chamber, and which supplies a first fuel; a second fuel supply portion that is provided in the combustion chamber and that supplies a second fuel that is capable of compression-ignited fuel; a third fuel supply portion that is provided in the intake passageway and that supplies the second fuel; wherein a supply opening of the first fuel supply portion and a supply opening of the third fuel supply portion are disposed so that the first fuel supplied from the first fuel supply portion and the second fuel supplied from the third fuel supply portion intersect and collide with each other. ### Claim 10 (depends on 9) The internal combustion engine according to claim 9, further comprising a control portion that is configured to control the first fuel supply portion, the second fuel supply portion and the third fuel supply portion, wherein the control portion being capable of switching between an operation mode in which the first fuel and the second fuel are supplied into the combustion chamber by using the first fuel supply portion and one of the second fuel supply portion and the third fuel supply portion, and an operation mode in which the second fuel is supplied into the combustion chamber by using the second fuel supply portion. ### Claim 11 (depends on 10) The internal combustion engine according to claim 10, wherein during an idle operation, the control portion is configured to cause the second fuel supply portion to supply the second fuel into the combustion chamber. ### Claim 12 (depends on 10) The internal combustion engine according to claim 10, wherein when load during operation is smaller than a threshold value determined based on an operation condition and the operation presently occurring is not an idle operation, the control portion is configured to cause the first fuel supply portion and the third fuel supply portion to supply the first fuel and the second fuel into the combustion chamber. ### Claim 13 (depends on 10) The internal combustion engine according to claim 10, wherein when load during operation is larger than a threshold value determined based on an operation condition, the control portion is configured to cause the first fuel supply portion and the second fuel supply portion to supply the first fuel and the second fuel into the combustion chamber. ### Claim 14 (depends on 9) The internal combustion engine according to claim 9, wherein the first fuel is natural gas, and the second fuel is light oil.