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JP2000008960 |
To obtain an engine which can dissolve a knocking problem and also operate in the state raised a compression ratio favorably. This subsidiary chamber type internal combustion engine, having a main combustion chamber 3 provided in a cylin...
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JP2000008856 |
To suppress generation of NOx and particulate components by covering a fuel injection nozzle with a cylindrical heat shield so as to prevent a thermal influence and adjust a closing period of a nozzle insertion hole of a sub-chamber. A t...
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JP2000008855 |
To surely perform ignition to a lean premixed mixture in the ignition timing. A lean premixed mixture is formed by injecting 95% fuel from a main fuel valve 5 in an early period of a compression stroke, the rest of 5% fuel is jetted from...
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JP3013570 |
PURPOSE: To enhance the rate of air utilization by generating active turbulence in the later period of combustion on the main combustion chamber side, and promoting mixing of air with combustion gas. CONSTITUTION: A pair of major cavitie...
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JP3013572 |
PURPOSE: To allow a jet stream to diffuse smoothly to different parts of a main combustion chamber by directing the jet stream from a jet to the left and right of a diffusion table. CONSTITUTION: A pair of major cavities 8 spread while p...
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JP11324811 |
To improve thermal efficiency by supplying compressed air to an auxiliary chamber through a control valve opening/closing a communicating opening through which a main chamber and the auxiliary chamber are communicated with each other, pr...
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JP11324809 |
To prevent combustion gas from remaining in the inside of a subsidiary chamber in this subsidiary chamber type gas engine, by forming two communicating openings wherein respective control valves are arranged in the subsidiary chamber, su...
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JP11324750 |
To provide a combined engine dealing with each of gas fuel and liquid fuel by selecting an operation mode by providing a cylinder head with a pre-combustion chamber with an ignition plug as an ignition source for the gas fuel in a main c...
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JP11324805 |
To improve an engine heat efficiency while holding low Nox by arranging a precombustion chamber with an ignition plug as an ignition source of mixture in a main combustion chamber on a cylinder head, and arranging precombustion chambers ...
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JP11324810 |
To provide a subsidiary type gas engine which improves thermal efficiency by forming a tornadic flow along a valve stem in an subsidiary chamber, and preventing residual gas from remaining in the inside of the subsidiary chamber. This su...
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JP2998050 |
PURPOSE: To provide an engine with a high compression ratio by providing a control valve for opening/closing a channel between a auxiliary chamber for carrying out pre-combustion and a main chamber, and by controlling fuel injection and ...
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JP11303637 |
To improve the fuel consumption rate and the discharge smoke, by facilitating the gas blowout from an auxiliary combustion chamber to a main combustion chamber with little resistance, as well as increasing the mixture gas forming energy ...
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JP11294168 |
To make an air current flowing in a sub-combustion chamber into a strong swirl to promote combustion by disposing an insert member in an opening on the main combustion chamber side in the subsidiary chamber formed on a cylinder head, and...
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JP11280610 |
To reduce manufacturing costs by improving processability of the fuel passage and a valve seat of a fuel injection nozzle that sequentially opens a nozzle hole for injecting fuel from the leading end side in accordance with the lift amou...
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JP11280628 |
To obtain good combustion irrespective of an engine load. A main combustion chamber 8 is communicated with a subsidiary chamber 10 via a communication hole 12. A spark plug 11 is disposed within the subsidiary chamber 10. A piston 2 is p...
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JP11280477 |
To promote mixture of air with fuel and reduce residual combustible fuel by preventing interference between the fuel injected from a fuel injection nozzle and air flow introduced into a sub-chamber through communication holes. Fuel is in...
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JP11278921 |
To provide both an engine part having a low thermal conductivity and a high strength at high temperatures and a method for producing the engine part. This engine part is formed from ceramics obtained by sintering a molded product prepare...
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JP11280476 |
To obtain a fuel injection space according to intensity of an engine operation load without varying a compression ratio by partitioning a sub- chamber arranged in a cylinder head into upper and lower sub-chambers which are partially comm...
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JP2983144 |
PURPOSE: To secure a fixed combustion condition by controlling an air-fuel ratio even when the calorific value of digestion gas is changed in an auxiliary chamber type gas engine furnished with the digestion gas as fuel which is a mixtur...
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JP11247658 |
To make compressed air flow which is suitable for generation of vortex in a volute chamber according to an operating condition of an engine. A volute chamber 4 in a cylinder head 2 and a main combustion chamber 7 in a cylinder 1 communic...
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JP11247659 |
To improve an air utilizing ratio in a main combustion chamber by rapidly and smoothly dispersing combustion air flow from an auxiliary chamber to the whole of a main combustion chamber. An injection hole 8 for communicating a main combu...
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JP11241671 |
To surely hold a preheating body in its projected state within an auxiliary chamber when an engine is started in cold and during a warming-up and to retreat the preheating body so as not to prevent formation of whirl in the auxiliary cha...
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JP2973150 |
PURPOSE: To facilitate valve opening control of a control valve for opening/ closing a communication port by providing a small communication hole for communicating a main chamber with the upper part of an auxiliary chamber, besides a com...
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JP11236815 |
To change the engine performance for a start property, fuel consumption and smoke generation simply by constituting so as to change the sectional area of a main injection port communicating between an eddy flow room and main combustion r...
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JP11210588 |
To perform smooth operation by preventing a lowering of residual pressure in a fuel injection pipe at the time of the completion of preliminary injection so as to prevent the omission of injection and the deviation of injection timing ca...
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JP11193730 |
To provide a control valve drive unit in an engine, which drives the opening and closing of the control valve provided in the connecting holes that connect the main chamber and the sub chamber, as well as drives the lift that forces igni...
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JP11193720 |
To provide a structure of combustion chamber for gas engines that lowers the fuel consumption by forming a circular recess in the piston on the vector of flame from the sub chamber to the main chamber in order to improve the combustion i...
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JP11193706 |
To provide a control valve cooling device in the engine that prevents thermal damage of the control valve and increases durability of the control valve by effectively cooling it disposed in the through passageway interconnecting the main...
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JP11190216 |
To enable reduction of hydrocarbon in exhaust gas and prevention of generation of white smoke during low temperature start-up, and suppression of generation of NOx and smoke under high loading to be compatible with each other. An about s...
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JP11182255 |
To improve scavenging and prevent output performance or exhaust gas performance from deteriorating due to a residue of exhaust gas by setting total flow area per cylinder of exhaust valves provided in a cylinder head of a reciprocation t...
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JP11159331 |
To absorb an error between the vertical dimension of a cavity and the vertical dimension of a base in a simple structure. A main combustion chamber 2 is provided in a cylinder 1, a cavity 4 facing the main combustion chamber 2 is provide...
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JP2934793 |
PURPOSE: To provide an internal combustion engine in which the efficiency of a diesel engine as an isolated engine is combined with the high speed performance of a gasoline engine. CONSTITUTION: An internal combustion engine has first an...
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JP11148358 |
To provide a two-stroke cycle internal combustion engine which can attain little air-fuel mixture blow-by in a combustion chamber and low fuel consumption and high emission control performance. The cylinder 14 of an internal combustion e...
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JP11148351 |
To reduce the concentration of the nitrogen oxides in exhaust emission by eliminating conventional defects by a mechanism simple to the utmost and at a low cost. In a reciprocating engine, which is provided with at least one main combust...
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JP2929056 |
PURPOSE: To uniformize a mixture ratio between combustion expansion gas and air in a main combustion chamber by laterally arranging large and small valve recesses on the side near an injection nozzle. CONSTITUTION: An injection nozzle 3 ...
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JP2929254 |
PURPOSE: To provide a fuel supply system having simple structure and manufactured at a low cost while clearing exhaust gas regulation. CONSTITUTION: Lean mixture B0 is supplied to a main combustion chamber 2, rich mixture B1 is supplied ...
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JP2929058 |
PURPOSE: To make a main jet a spinning state turning flow to reduce the attenuation factor of flow velocity to activate diffusion combustion in the main combustion chamber, by communicating main and sub combustion chambers with each othe...
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JP11117814 |
To achieve high engine thermal efficiency even if a divided gas engine is operated in a high swirl ratio. A gas engine is configured such that a lean mixture is supplied to a main chamber 1 in a swirl ratio of 1.0-2.5 while a rich mixtur...
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JP11117746 |
To improve a fuel consumption and to reduce a harmful component in exhaust gas by conducting cylinder injection under low pressure using a simple compressing means such as a compressor in a 4-cycle engine. A concentrated air-fuel mixture...
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JP11107792 |
To enhance the fuel consumption and exhaust gas characteristics of a premix compression ignition type engine. A slider 8 is mounted to an auxiliary chamber 7 communicated with the combustion chamber 4 of a premix compression ignition typ...
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JP11082025 |
To improve air utilization rate in this indirect injection type gas engine by operating a communication opening valve capable of a change in setting load on gas fuel pressure, thus conducting control for opening a communication opening. ...
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JP11082024 |
To reduce compression work for higher performance, in this gas engine combustion chamber structure, by constituting a communication opening formed with a communication opening valve as well as sub-communicating hole for communicating a m...
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JP11062590 |
To reduce fuel consumption and improve thermal efficiency in a gas engine in which compressed air is mixed with a gas fuel in a sub-chamber in the vicinity of the upper dead center of a compression stroke so as to ignite and burn by prov...
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JP11050846 |
To reduce discharge of NOx, particulates and soot and improve fuel consumption by making thick air-fuel mixture jetted from an auxiliary-chamber collide with air in a main chamber, mixing it with air into the interior of the flame inside...
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JP11044227 |
To provide the structure of the combustion chamber of an engine to reduce the occurrence of friction, store a part of a compressed air pressure in a main chamber as the spring force of a spring and apply the spring force thereof on a pis...
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JP11022468 |
To eliminate a sharp projection part generated in an inlet angle part which is the main fuel chamber side of a swirl chamber and prevent the cracking in a combustion device having a swirl chamber provided on a cylinder head, whose main f...
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JP11006437 |
To reduce concentration unevenness in a pre-combustion chamber by limiting the shape of the pre-combustion chamber which consists of an upper part, a lower part, and a contraction cross section part, with a specified condition. In a pre-...
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JP2873171 |
PURPOSE: To provide an ignition device for an auxiliary chamber type gas engine which can obtain both assured ignition and extension of the life of an ignition plug, and is made in such construction that the stable discharge and ignition...
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JP2868421 |
PURPOSE: To stabilize the combustion in a divided chamber by supplying the stable amount of air-fuel mixture, stabilizing the combustion, reducing the smoking of an ignition plug in the divided chamber, and preventing the deposit of carb...
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JP10339137 |
To uniformly diffuse flames and unburnt fuel in a main combustion chamber in a swirl chamber type diesel engine. A guide recessed part 13 of a Y-shaped plan view is provided on a top surface of a piston 3, and a top end part 13a of the g...
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