Patent application number | Description | Published |
20080245318 | Hydrogen-Fueled Internal Combustion Engine - It is an object of the present invention to improve the mixability of liquid hydrocarbon fuel and hydrogen gas and reduce the number of parts required for fuel supply means that supplies the two types of fuel. Disclosed is a hydrogen-fueled internal combustion engine that uses liquid hydrocarbon fuel and hydrogen gas as fuel. The hydrogen-fueled internal combustion engine comprises a fuel injection device for injecting hydrocarbon fuel; fuel supply means for supplying hydrocarbon fuel to the fuel injection device; and a microbubble generation device for generating microbubbles of hydrogen gas and mixing the generated microbubbles of hydrogen gas into liquid hydrocarbon fuel in the fuel supply means. The hydrogen gas microbubbles are supplied, for instance, to a fuel supply path (second fuel supply path) and fuel tank, which constitute the fuel supply means. | 10-09-2008 |
20090288647 | Fuel supply apparatus - A fuel supply apparatus that supplies fuel to an internal combustion engine by injecting liquid fuel from a fuel injection valve into a suction port is configured by a microbubble generator that generates microbubbles and an ultrasonic wave generator that generates an ultrasonic wave depending on a gas in the microbubbles generated by the microbubble generator. In the fuel supply apparatus, the generated microbubbles are mixed into the liquid fuel that is supplied to the fuel injection valve, and the liquid fuel in which the microbubbles are mixed is irradiated with the ultrasonic wave depending on the driving state of the internal combustion engine. When the liquid fuel in which the microbubbles are mixed is irradiated with the ultrasonic wave, a temperature of the liquid fuel is raised instantaneously due to contraction of the microbubbles. | 11-26-2009 |
20100204902 | STOP-START CONTROL APPARATUS AND METHOD FOR AN INTERNAL COMBUSTION ENGINE - A stop-start control apparatus for a port injection engine ( | 08-12-2010 |
20100300416 | INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE INTERNAL COMBUSTION ENGINE - During starting of an engine that has a circulation path through which argon, used as working gas, is circulated back to a combustion chamber and that uses hydrogen as fuel during operation, oxygen is supplied in such a manner that the oxygen supply ratio is higher than that used during normal operation. Thus, the entirety of hydrogen supplied into the combustion chamber reacts with oxygen and is burned. When the engine is being started, because gas is not turbulent enough, hydrogen and oxygen are likely to be mixed poorly. Therefore, when oxygen is supplied in such a manner that the ratio of oxygen supply amount to the hydrogen supply amount is higher than the theoretical ratio, even if oxygen and hydrogen are not mixed so well, the chance that hydrogen contacts oxygen is increased. As a result, combustion takes place in a more appropriate manner, which improves the engine startability. | 12-02-2010 |
20110067383 | WORKING GAS CIRCULATION ENGINE - A working gas circulation engine includes a combustion chamber that is supplied with fuel, the combustion product of which is condensed, and working gas that generates power with the use of combustion of the fuel and that has a specific heat ratio higher than that of air, a circulation path that connects an inlet and an outlet of the combustion chamber to each other in such a manner that the working gas is circulated back to the combustion chamber without being released into the atmosphere, and two condensers that are provided in the circulation path, that are supplied with exhaust gas which contains the combustion product and the working gas, and that condense and remove the combustion product. | 03-24-2011 |
20110067664 | GAS CIRCULATION ENGINE - A gas circulation engine includes a combustion chamber to which high-pressure fuel in a first high-pressure fuel supply passage, an oxidant and working gas are supplied; a circulation path that connects an intake-side portion and an exhaust-side portion of the combustion chamber to each other; a fuel bleed-off tank into which the high-pressure fuel in the first high-pressure fuel supply passage is bled off; a fuel bleed-off valve that permits or shuts off communication between the first high-pressure fuel supply passage and the fuel bleed-off tank; and a fuel bleed-off control unit that permits communication between the first high-pressure fuel supply passage and the fuel bleed-off tank by opening the fuel bleed-off valve when the engine is stopped, the communication between the first high-pressure fuel supply passage and the fuel bleed-off tank being shut off during operation of the engine. | 03-24-2011 |
20110246046 | STOP-START CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A stop/start control device ( | 10-06-2011 |
Patent application number | Description | Published |
20100043731 | Medium circulating apparatus for improving startability and warm up ability - A medium circulating apparatus of engine oil, which improves startability and warm up ability of an internal combustion engine, includes a microbubble generator that generates microbubbles and mixes the microbubbles into the circulating engine oil. Further, the medium circulating apparatus includes a medium temperature acquiring unit that acquires a temperature of the engine oil. The microbubbles are generated by the microbubble generator when the temperature of the engine oil is less than or equal to a predetermined value in order to decrease a viscosity, a heat conductivity, and a heat capacity of the engine oil in which the microbubbles are mixed. | 02-25-2010 |
20100083935 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - In the present invention, in a control system for a spark ignition internal combustion engine, when a catalyst is not sufficiently active, the ignition timing is advanced to be earlier than MBT to decrease the quantity of hydrocarbons (HC) discharged from the internal combustion engine, and oxygen is supplied to the exhaust gas upstream of the catalyst to thereby oxidize carbon monoxide (CO) discharged from the internal combustion engine. According to this invention, exhaust emissions emitted before activation of the exhaust gas purification apparatus can be decreased as much as possible, and early activation of the catalyst can be achieved by making use of heat generated by oxidation reaction of carbon monoxide (CO). | 04-08-2010 |
20110005207 | CONTROL DEVICE - A control device applied to a system having an engine configured such that an expansion ratio can be changed is characterized to comprise an expansion ratio acquisition part for acquiring the expansion ratio, and a temperature estimation part for estimating a temperature of an exhaust gas discharged from the engine or a member positioned in a passage for the exhaust gas. | 01-13-2011 |
20110056466 | WORKING GAS CIRCULATION ENGINE - A combustion chamber to which a reactant and a working gas whose specific heat ratio is higher than that of air are supplied and in which the working gas can expand following a reaction of the reactant, a circulation path capable of re-supplying the working gas into the combustion chamber by causing the working gas to circulate from an exhaust side to a suction side of the combustion chamber, supplying means that supplies the reactant, a concentration detection means capable of detecting a concentration of the reactant in the circulation path, and a supply control means that sets at least a first supply rate of the reactant by the supplying means in a time for starting based on the concentration of the reactant detected by the concentration detection means before a start of supplying of the reactant by the supplying means are included and so proper starting can be assured. | 03-10-2011 |
20110209691 | WORKING GAS CIRCULATION ENGINE - A working gas circulation engine includes a combustion chamber that can expand a working gas, which has a specific heat ratio higher than that of the air, with the combustion between an oxidizing agent and a fuel; a circulation path that can allow the working gas to circulate from a suction side to an exhaust side of the combustion chamber and can supply the same again to the combustion chamber; a feed means that can feed the gas in a pressure-reduction target section, which is the section whose pressure is to be reduced, to the outside, and a control means that operates the feed means for feeding the gas in the pressure-reduction target section, when the pressure in the pressure-reduction target section is higher than a predetermined pressure that is set in advance. | 09-01-2011 |
20120227713 | WORKING GAS CIRCULATION ENGINE - The working gas circulation engine includes a circulation route capable of circulating gas containing the working gas from an exhaust side to an intake side of a combustion chamber and resupplying to the combustion chamber and provided with a removing device to remove a product generated with a reaction from the circulating gas, a supplying device capable of supplying plural kinds of reactant gas to the combustion chamber or the circulation route, a pressure detecting device capable of detecting pressure in the circulation route, and a control unit that controls supply amount of at least one kind of the reactant gas to be supplied from the supplying device. | 09-13-2012 |
20120285428 | WORKING GAS CIRCULATION TYPE ENGINE - A working gas circulation type engine includes a combustion chamber in which a working gas having a ratio of specific heats higher than that of air can be expanded by combustion of a fuel, a circulation path capable of circulating a gas containing the working gas from a gas exhaust side to a gas suction side of the combustion chamber and supplying the gas containing the working gas to the combustion chamber again, and a control device that changes a control parameter for controlling the combustion of the fuel based on a ratio of specific heats of the gas circulating in the circulation path. Therefore, there can be provided the working gas circulation type engine capable of obtaining a stable output. | 11-15-2012 |
20130333356 | WORKING GAS CIRCULATION ENGINE - In a working gas circulation engine, water vapor contained in exhaust gas after combustion is separated and removed at higher efficiency as compared with the conventional technology, the influence of remaining water vapor is prevented from reducing the ratio of specific heats of working gas and deteriorating the thermal efficiency of the engine. | 12-19-2013 |
20140130777 | DETECTION METHOD OF AIRTIGHT FAILURE IN WORKING-GAS CIRCULATING TYPE GAS ENGINE, AND WORKING-GAS CIRCULATING TYPE GAS ENGINE USING THE METHOD | 05-15-2014 |
20150101400 | VISCOSITY MEASURING APPARATUS - A viscosity measuring apparatus is mounted on a vehicle provided with an engine, a cylinder pressure sensor configured to detect cylinder pressure which is inner pressure of a cylinder of the engine, a fuel injection valve configured to supply fuel to the engine, and a temperature sensor configured to detect temperature of a coolant of the engine. The viscosity measuring apparatus is provided with: an estimating device configured to calculate a cooling loss from a heating value of the cylinder based on the cylinder pressure detected by the cylinder pressure sensor and an input heating value of the cylinder, and to estimate viscosity of the coolant on the basis of the calculated cooling loss. | 04-16-2015 |
20150151761 | DRIVE CONTROL DEVICE FOR VEHICLE - A drive control device for a vehicle including an engine and a clutch device provided in a power transmission path between the engine and a drive wheel includes: a normal traveling unit causing the vehicle to travel while the engine is connected to the drive wheel; a free-run coasting unit disconnecting the engine from the drive wheel during traveling and causing the vehicle to coast while the engine is stopped; a neutral coasting unit disconnecting the engine from the drive wheel during traveling and causing the vehicle to coast while the engine is autonomously operated; and a coasting switching control unit setting an upper limit value of an upward gradient of a road surface, at which the neutral coasting is stopped, such that the upper limit value is larger than an upper limit value of the upward gradient of the road surface, at which the free-run coasting is stopped. | 06-04-2015 |
20150158491 | DRIVE CONTROL DEVICE FOR VEHICLE - An upper limit value of an upward gradient of a road surface for starting neutral coasting is set to be larger than an upper limit of the upward gradient of the road surface for starting free-run coasting, so, when the upward gradient is relatively large and a coasting distance is short, the vehicle is caused to travel in the neutral coasting, and stop and restart of the engine are not carried out. Therefore, a decrease in drivability of the vehicle is suppressed. When the upward gradient is relatively small and the coasting distance is long, the vehicle is caused to travel in the free-run coasting, and supply of fuel to the engine is stopped, so fuel economy of the vehicle is obtained. Thus, it is possible to achieve both fuel economy and drivability of the vehicle during coasting on an upward gradient. | 06-11-2015 |
20150211407 | COOLANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING INTERNAL COMBUSTION ENGINE - This invention provides a coolant composition for an internal combustion engine that can improve the energy efficiency of an internal combustion engine and a method for operating an internal combustion engine using such coolant composition. The coolant composition for an internal combustion engine of the invention has kinematic viscosity of 8.5 to 3,000 mm | 07-30-2015 |
20150266480 | VEHICLE DRIVE CONTROLLER - A running control device is configured to execute an engine coupling running mode performed with an engine and wheels connected by a connecting/disconnecting device, a neutral inertia running mode performed with the engine separated from the wheels by the connecting/disconnecting device while the engine is supplied with fuel and allowed to perform self-sustaining rotation, and a free-run inertia running mode performed with the engine separated from the wheels by the connecting/disconnecting device while fuel supply to the engine is stopped to stop rotation. The neutral inertia running mode is terminated when an operation amount of the accelerator pedal becomes equal to or greater than a predefined first determination value. The free-run inertia running mode is terminated when an operation amount of the accelerator pedal becomes equal to or greater than a predefined second determination value larger than the first determination value. | 09-24-2015 |
20150274166 | TRAVEL CONTROLLER FOR VEHICLES - A running control device of a vehicle includes an engine with a plurality of cylinders, and a clutch connecting/disconnecting a power transmission path between the engine and wheels, the running control device of a vehicle performing during an inertia running mode a neutral inertia running mode performed with the power transmission path between the engine and the wheels disconnected while the engine is kept operated, and a cylinder resting inertia running mode performed by resting at least a part of the cylinders of the engine while the power transmission path between the engine and the wheels is connected, the running control device of a vehicle increasing an operation region of performing the neutral inertia running mode in an operation region of performing the inertia running mode when idle learning performed in an idle operation state of the engine is incomplete, as compared to after completion of the idle learning. | 10-01-2015 |
20150274168 | VEHICLE TRAVEL CONTROLLER - A running control device of a vehicle including an engine, a brake operation member, and a brake booster, is configured to execute an engine brake running mode performed with the engine coupled to wheels and an inertia running mode performed with an engine brake force made lower than that in the engine brake running mode. The running control device executes first and second inertia running modes. The first inertia running mode is terminated when a brake request amount becomes equal to or greater than a predefined first determination value while the first inertia running mode is performed. The second inertia running mode is terminated and a return to the engine brake running mode is made when the brake request amount becomes equal to or greater than a predefined second determination value larger than the first determination value while the second inertia running mode is performed. | 10-01-2015 |
20150284004 | VEHICLE TRAVEL CONTROL DEVICE - A running control device of a vehicle includes an engine, a clutch separating the engine and wheels, and a torque converter with a lockup clutch transmitting power of the engine toward the wheels, the running control device of a vehicle is configured to execute a neutral inertia running mode that is an inertia running mode performed while the engine and the wheels are separated and a cylinder resting inertia running mode performed by stopping operation in at least some of cylinders of the engine while the engine and the wheels are coupled, the lockup clutch has a weak engagement force while the neutral inertia running mode is performed as compared to while the cylinder resting inertia running mode is performed. | 10-08-2015 |
20150291165 | VEHICLE TRAVEL CONTROL DEVICE - A running control device of a vehicle including an engine, a connecting/disconnecting device separating the engine and wheels, and a transmission transmitting power of the engine toward the wheels, the running control device of a vehicle being configured to execute a normal running mode performed by using the power of the engine with the engine and the wheels coupled, a free-run inertia running mode that is an inertia running mode performed by separating the engine and the wheels and stopping the engine during running, and a neutral inertia running mode that is an inertia running mode performed by separating the engine and the wheels and operating the engine in a self-sustaining manner during running, the running control device of a vehicle setting a gear ratio of the transmission on a high vehicle speed side in the case of return from the free-run inertia running mode to the normal running mode. | 10-15-2015 |
20150291171 | VEHICLE TRAVEL CONTROLLER - A running control device of a vehicle executes a normal running mode with an engine coupled to drive wheels, a first inertia running mode with the engine stopped during running and an engine brake force reduced as compared to the normal running mode, and a second inertia running mode with the engine rotating during running and the engine brake force reduced as compared to the normal running mode. A determining portion determines a necessity of a brake negative pressure during the first or second inertia running mode. The necessity of the brake negative pressure is a condition for returning from the first inertia running mode and the second inertia running mode to the normal running mode. An upper limit value of the necessity of the brake negative pressure for returning from the first inertia running mode is smaller than that for returning from the second inertia running mode. | 10-15-2015 |