40 results about "Hydrogen internal combustion engine vehicle" patented technology

A method of estimating an ideal air-fuel ratio in an internal combustion engine, comprises receiving an output of an upstream air-fuel ratio sensor and an output of a downstream air-fuel ratio sensor, the upstream air-fuel ratio sensor being attached to an exhaust gas passage such that it is positioned upstream of a catalyst provided in the exhaust gas passage to purify an exhaust gas, the downstream air-fuel ratio sensor being attached to the exhaust gas passage such that it is positioned downstream of the catalyst; detecting a state in which the catalyst does not store or release oxygen based on the output of the downstream air-fuel ratio sensor; and deciding as an estimated ideal air-fuel ratio in the internal combustion engine an air-fuel ratio detected by the upstream air-fuel ratio sensor when the state in which the catalyst does not store or release oxygen is detected.

The large internal combustion engine with a super charger comprises a turbocharger having a turbine (6) driven by an exhaust gas, and a compressor (9) driven by the turbine for supplying supply air to a cylinder of the engine. The engine is further provided with a humidification unit (12) for raising an absolute humidity of the supply air by humidifying the supply air.

The invention relates to a gear-driven mechanism which can run reversely and convert the reciprocating rectilinear movement into the rotation toward the same direction. In the technical scheme, the drive of a gear sleeve and a gear is adopted for replacing the drive of a crankshaft and a connecting rod. The gear-driven mechanism can be widely applied to vehicle internal combustion engines, marine low-speed diesel engines, tank engines, hydraulic motors, pump and other machines. As a gear-driven internal combustion engine imitates the working condition of a crankshaft-driven internal combustion engine at the strong deflagration stage of the burning and combustion of fuels, the gear-driven mechanism also can meet the constant volume combustion condition of a spark ignition type internal combustion engine and maintains the conversion efficiency of the heat engine cycle of the internal combustion engine. The gear-driven mechanism provides a doubled drive angle nearby a top dead center so that the mechanical efficiency is substantially increased. The ideal gear-driven internal combustion engine can really realize the constant volume combustion, blows up gas energy instantly and ensures that the cycle thermal efficiency reaches an ideal level.

The large internal combustion engine with a super charger comprises a turbocharger having a turbine (6) driven by an exhaust gas, and a compressor (9) driven by the turbine for supplying supply air to a cylinder of the engine. The engine is further provided with a humidification unit (12) for raising an absolute humidity of the supply air by humidifying the supply air.

The large internal combustion engine with a super charger comprises a turbocharger having a turbine (6) driven by an exhaust gas, and a compressor (9) driven by the turbine for supplying supply air to a cylinder of the engine. The engine is further provided with a humidification unit (12) for raising an absolute humidity of the supply air by humidifying the supply air. One or a plurality of the humidification units may be water tanks (40 and 41) through which bubbles of the gas to be humidified are made to pass.

The invention discloses a hydrogen supply system for a liquid hydrogen source material for a hydrogen internal combustion engine. The hydrogen supply system comprises a hydrogen storage tank used for storing the liquid hydrogen source material and a liquid hydrogen storage carrier, a reaction kettle used for dehydrogenating the liquid hydrogen source material, a buffering tank used for storing hydrogen, an oxygen storage tank used for storing oxygen, a heat exchange device used for transmitting heat generated by the hydrogen internal combustion engine to the reaction kettle, and a hydrogen storage device which is used for conveying the liquid hydrogen source material into the reaction kettle through a pump. The dehydrogenation reaction of the liquid hydrogen source material is conducted in the reaction kettle; hydrogen generated through the reaction is conveyed to the buffering tank; meanwhile, the liquid oxygen storage carrier generated after dehydrogenation is conveyed back to the hydrogen storage tank; the hydrogen in the buffering tank and the oxygen in the oxygen storage tank enter the hydrogen internal combustion engine according to a proportion. According to the dehydrogenation device for the normal-temperature and normal-pressure liquid hydrogen source material for a hydrogen internal combustion engine automobile, a hydrogen storage and hydrogen internal combustion engine integrated technology for enabling the hydrogen released by liquid hydrogen source material dehydrogenation at the normal temperature and the normal pressure to directly enter a hydrogen internal combustion engine system is put forwards for the first time, according to the technology, a common car can run for 500 kilometers with the hydrogen generated by 80 L of an organic carrier, and therefore the cost for large-scale utilization of hydrogen energy in the future is greatly reduced.

The invention belongs to the technical field of new energy and energy saving and environmental protection, and particularly relates to a double-sleeve type electrode internal combustion engine device with water serving as fuel. Hydrogen is collected through an independent cathode sleeve and conveyed to an electric sprayer through a one-way valve and a booster pump to replace original gasoline, diesel oil and other fuel. Oxygen is collected through an independent anode sleeve and directly fed into a gas inlet pipe in front of a throttle valve through a one-way valve, the oxygen and air are conveyed to the front of the throttle valve through negative pressure to be mixed with the hydrogen and fed into an air cylinder for combustion, and the structure that fuel oil is adopted as fuel all the time for hundreds of years is replaced euphemistically. According to the inventive principle, new energy capable of being used by the new structure can be developed according to the combustion principle that multiple electrolytic cells and multiple storage batteries of the same kind are additionally mounted according to high (low) power of an internal combustion engine to be connected with gas conveying or input current in parallel, and the basic structures of various automobile engines are not changed.

The steam engine was eliminated by the internal combustion engine because of the bulky and bulky power device, but the operating performance of the internal combustion engine is far behind that of the steam engine. Integrated, to overcome the six insurmountable fatal weaknesses of the internal combustion engine, such as self-starting, overload fire extinguishing, self-adjustment of output torque, and poor performance at low speeds, to improve the overall performance of the internal combustion engine. Steam engine principle The power system of a gas engine is a new type of combustion device invented with reference to the combustion principle of an internal combustion engine. The function of this device is to convert fuel oil into gas and provide power for the engine. The principle of steam engine The gas engine itself is designed according to the working principle of the steam engine, the pressure and temperature parameters of the gas itself. There is no doubt that a gas engine designed with the principle of a steam engine naturally has the operating performance of a steam engine.

A naturally aspirated internal combustion engine for a vehicle having an operating range from a no-load range to a high-load high-speed range is controlled in accordance with the Miller cycle throughout the entire operation range including the high-load high-speed range, thereby further improving fuel consumption , while improving the productivity of the internal combustion engine with a simple structure, and, furthermore, suppressing an increase in cost and an increase in weight of the internal combustion engine. The naturally aspirated internal combustion engine E for a vehicle is equipped with a cylinder 2 in which a piston 8 can freely reciprocate, and an intake valve that opens and closes at a constant opening and closing time throughout the entire operating range from a no-load range to a high-load high-speed range. 35 and exhaust valve 36. The valve closing time of the suction valve 35 is set before the bottom dead center, or the prescribed valve closing time after the suction gas in the cylinder 2 flows back to the bottom dead center upstream of the suction valve 35 . In addition, the exhaust volume of the internal combustion engine E is set in the high-load high-speed region, and the internal combustion engine E can obtain the specified exhaust volume of the maximum required indicated output through the control of closing the intake valve 35 at the above-mentioned predetermined valve closing time.

The invention relates to a hydrogen fuel internal-combustion engine and the hydrogen injection system and the combustion method thereof; part of the liquid hydrogen fuel is vaporized and injected intothe engine inlet manifold by the gas channel hydrogen injector via the gas channel injector fuel supply system; the hydrogen injected into the engine inlet manifold is mixed with the air to enter thecombustion chamber; part of the liquid hydrogen fuel is compressed to be injected into the combustion chamber by the high pressure hydrogen injector inside the cylinder. The combination of the two fuelsupply modes improves the power performance of the engine, avoids the abnormal combustion situation and reduces the hydrogen intensity inside the gas inlet channel; thereby, the abnormal combustionsu ch as the backfire is avoided.